The Customs House Hotel, located on the Hobart waterfront, adjacent to Parliament House, was built in 1846. The building is a well know watering hole and there is even a rumour of a tunnel that exists between the hotel and Parliament House!

Sealasash have been engaged to come up with a heritage sensitive method to reduce noise and make the beautiful Georgian windows work. So a crew has been on site this week retrofitting acoustic and thermal improved glass as well fitting as our tried and tested Sealasash draught seal system (which also assists in reducing noise). The window sashes are made of rare Australian cedar and were found to be in reasonable condition. Where rot was evident in sashes it was because windows had been painted and sealed shut. New rails were made and inserted to match. 
There is an emerging trend from our expereince of rot being associated with painted in and sealed shut sliding sashes. This spells disaster for the future of our historic windows.  it is great to see that Customs House Hotel want to look after and conserve the original windows. Hobart is so lucky to have such a stock of these old buildings and the windows are a major feature that must in our opinion be kept.

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Sealasash will be on Stand J01 at the Melbourne Home Show  from Thursday 17 to Sunday 20 August. Come and visit us to touch, feel and hear our wooden window renewal system in action.



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You can now draught seal and reglaze your old wooden windows under the Tasmanian Energy Efficiency Loan Scheme, or TEELS as it is commonly known.

The TEELS scheme is a joint initiative of the Tasmanian Government and Aurora Energy to assist our Tasmanian community with the purchase of energy efficient products, and Sealasash is delighted that draught sealing and reglazing are included on the eligible products list.

Updating to energy efficient products can make a practical, cost-effective difference to the energy running costs for your home or small business.

The list of eligible products within TEELS is below, and you can find out more about the scheme on this link


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There is a common myth nowadays that replacing the old with the new is the best thing to do.  Many people think that old things will wear out whereas something new will last longer and look smarter.  But it’s not true!!

The photos below show a major difference between  modern replacement wooden windows and original wooden windows.

Nails to hold the wooden bead into the frame are rusting only a short time after installation.



Putty in place on old wooden sash window








On the new windows, the glass is held in by wooden beads that are nailed into the sash.  Old wooden windows on the other hand have glass secured and finished off by a smooth putty line.

The photos show what happens to the nails securing the beads. Water infiltrates and causes rust. This starts to open up the wood and let more water in and then this sets things up for rot!!

Putty seals the glass and when painted over lasts for years. The fact that no nails penetrate the putty means that the water has no pathway into the wooden sash.

Also wooden beads  just don’t look right. They change the profile of the window and therefore interfere with the visual aspect.

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Windows are an integral part of the design of older buildings but are often overlooked or mistreated when renovation plans are made.

Complete replacement of old windows with new joinery or PVC windows are an expensive alternative to replacing and upgrading existing wooden windows.

The fact is that even the most tired looking old timber windows can be renovated to full working order and upgraded to include draught seals and high performance glass. This is a much more sympathetic approach to our built heritage.

As the numbers of specialist craftsmen diminish, we’re told to look for newer, mass-produced alternatives, but there are companies who will take the time to repair original timber structures. Original timber windows are most often made of much higher quality wood than is available today, so retaining existing windows and adding draught sealing allows for much better performance than newer replacements.

Rotten sill removed

New sill in place









As well as replacing old wooden windows, home renovators often look to double glazing as the fix-it for their heating and cooling problems.  But draught proofing is one of the easiest, cheapest and most effective things you can do to increase comfort and reduce energy costs in your home.  Reports show that anything from 25% to 40% of heat loss in the home – particularly older homes – can be attributed to draughts.

So when you’re renovating think hard about renovating your windows too. It can be done!


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The Sealasash WA team are currently working on the restoration and draught sealing of windows on the heritage listed Melbourne Hotel on Hay Street in Perth. The hotel was officially opened in April 1897 and served as a hotel and pub for most of the 20th century.  The project, run by building firm Doric, will see the building transformed into a seven storey, 4.5 star hotel.

L to R: Cameron Richardson (supervisor), Henry Weldon, Luke Pescod and Pavel Kolosov

The original three-storey brick facade has a painted stucco finish, round-headed timber windows and door openings arched with false stonework, attached columns, pilasters, triangular pediments and projecting mouldings, all in Federation Free Classical style. Under the development the facade will remain in place while the more recent additions built in the 1990s will be demolished to make way for an extension that will include a two-level glass-roofed conservatory space and new basement for the hotel and potential future developments.


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Come and see us with our wooden windows on stand D01 at the Perth Home Show. Sash window experts Henry, Colm and John will be on hand to answer any questions you might have about how to best look after your old wooden windows. From carpentry repairs, sash weights, glazing to high quality draught seals they know it all.

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Our first job of 2016 was to join Hutchinson Builders  at historic Yungaba House in Brisbane and work on the 130 windows that needed draught sealing and reglazing as part of a  huge renovation job.


Watch the video here.

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Sealasash are delighted to announce that they have spread their wings and landed in Western Australia.  Henry Weldon, who has had his own carpentry business for a number of years, has taken on the mantle of Sealasash WA.  With extensive experience in heritage restorations in the UK, Henry’s  two year old Perth operation runs a team of skilled craftsmen with a keen eye and a true passion for their work. A perfect fit for Sealasash.

Henry says “When I saw what Sealasash were doing on the other side of Australia I wanted to get involved. I have regularly worked on double hung sash windows through my time and have always been fascinated by the simplicity and effectiveness of the principle. What some tradesmen would look at as too hard I look at as a challenge and love doing.”

Sealasash WA already have a number of renovated windows under their belt and are busy organising quotes for residents of Perth’s older suburbs . If you want to hear more about what they can do contact Henry on [email protected] or on 0468 675 833.

Henry and Jo with the Sealasash WA van.

Henry and Jo with the Sealasash WA van.



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Sealasash the innovators!

Help us win our first award!


We have entered the 2016 Innovative Tasmania Awards in the category of Innovative  Start-Up.  Yes tradesmen have been working on wooden windows for years, but we reckon our use of existing products and specialised carpentry skills together has resulted in a unique and innovative service that hasn’t been seen before.

The revelation that old wooden windows can be draught sealed and renovated – to have them functioning better than new – and more energy efficient – is fast spreading across the country.  No more ripping them out or disfiguring them with modern alternatives.

And we haven’t stopped yet, the innovation continues with announcements in the near future that will provide an even better service.

So get behind us in the awards and give us a vote.  Help spread the word about Sealasash.

Vote here, we’re in the Innovative Start-Up Category.


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Sealasash was represented by a crew of seven at the recent Traditional Wood Carpentry and Joinery Repair Workshop at the Longford Academy. The aim of the day was to  increase the awareness of issues related to heritage carpentry skills and reinforce an appreciation for the detail that is undertaken in heritage conservation carpentry.

Most of our staff are already trained in the Burra Charter principles for working on heritage properties. Adhering to the  Charter means that we replace as little as possible but as much as necessary when carrying out repair work on wooden windows.  It’s specialised work and more reminiscent of the traditional ways than the modern form of carpentry learned nowadays.

The day spent on the World Heritage Listed Woolmer’s Estate showed our team old style carpentry and joinery. They were shown the old types of tools that were used and old methods such as different ways to fill holes, for example with waxes. Adam, who took part in the full week’s course, learnt in detail how to conserve deteriorating wood, working on the shutters in the 1820’s wool shed.

Adam working on an 1820's shutter

Adam working on an 1820’s shutter

Examining the exterior of the 1820’s wool shed.








Investing in our staff and encouraging them to upskill in the values important to Sealasash is crucial for the ongoing success of our work. While the guys may not have gained new skills they’ll be using day to day, they certainly left Woolmer’s with an increased appreciation of the care and attention needed when working on heritage properties.



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Not just draught sealing

We’re expanding our services.

Our Hobart team have recently been working at the The Henry Jones Art Hotel, housed in an old waterfront warehouse (a jam factory) that dates back to 1804.  Many of the windows at the front of the hotel were draughty, rattly and didn’t work properly – some were blocked from the internal side with glass partitions. Hotel management wanted guests to be able to open windows onto the waterfront but also be comfortable when windows were closed. So we were engaged to install our draught sealing system and new improved thermal and acoustic glass. Most often painting is done after the draught sealing, which is sometimes a problem – when painters paint over brush seals and paint sashes shut, so we teamed up with Tasmanian HiTec Painting to complete the service. We worked through a process that allows the draught sealing, re-glazing and painting all to be done at the same time.  We look forward to hearing what guests to the hotel think!

Henry Jones Front SMALL

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To be held next Thursday 30th June, this one-day course will teach participants the history and basic structure / function of traditional sash windows and how to undertake maintenance and basic repairs to keep windows operating.

Participants will assess windows for condition and learn how to disassemble and undertake repairs to sashes and frames, including rail / glazing gar repairs, epoxy repairs and re-cording weighted windows.

Participants will also learn how energy efficient features can be retrofitted to old windows.

Thursday June 30th 2016 – 9am to 4.30pm at MBA Offices – 30 Gleadow St, Invermay.

Cost $198, those working in construction industry and eligible for subsidies may be able to attend at no cost.

Contact Brad Williams  on 0418 303 184 for more information or book at

Window Workshop

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Our work on heritage properties reached a pinnacle recently when we carried out work on two large double hung sash windows in the dining room at the World Heritage Listed Woolmers Estate in Northern Tasmania.

With such valuable artefacts around – the site is a museum of historical items dating back to mid 1800’s – our work was closely overseen by heritage architect Joanna Lyngcoln. She’s written us a fabulous reference which you can look at here. And make sure you want the video too.

Reference Sealasash from JLyngcoln 2016



Reference from heritage architect Joanna Lyngcoln



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In partnership with the Centre for Heritage at Oatlands Sealasash Hobart’s lead carpenter, the wonderful Phil Grant,  will be tutoring a one day course on sash window repair and maintenance.

Window Workshop

Participants will learn about the history and basic structure & function of traditional sash windows and how to undertake maintenance and basic repairs to keep windows operating.

They will assess windows for condition and learn how to disassemble and undertake repairs to sashes and frames, including rail / glazing bar repairs, epoxy repairs and re-cording weighted windows.

Participants will also learn how energy-efficiency features can be retrofitted to old windows.

Friday May 6th 2016 – 9am to 4.30pm

Runnymede, 61 Bay Road, New Town, Tas

Cost: $198

Enquiries: Brad Williams 0418 303 184



Note: If you are working in the construction industry and are eligible for the Tasmanian Building and Construction Industry Training Board subsidy then you can attend the course at no-cost.

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This week Sealasash had the pleasure of working on two large wooden windows at the World Heritage Listed Convict Site Woolmers Estate at Longford in Tasmania.

Woolmers is one of the most historically significant heritage properties in Australia. As well as the architectural heritage the site is home to a large number of collections and historical artefacts amassed by the Archer family, who occupied the property from around 1817 to 1994.

Our work took place on the double hung sash windows in the dining room, pictured below. Before we could start work, experts from the Queen Victoria Museum and Art Gallery in Launceston had to carefully move the furniture and items  seen in the picture.

Working on heritage properties such as Woolmers is a privilege. Our lead carpenters are trained in the Burra Charter which documents the practice of cultural heritage management as we believe it’s vital to look after such historical significance.

A short video of our work at Woolmers will be available in the next few weeks.

Dining room windows at Woolmers

Dining room at Woolmers


A beautiful setting for the working day

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Talking about draughts

Recently Sealasash took part in the HIA HomeFest at Hobart’s Princes Wharf. There were all sorts of exhibitors there – builders, tilers, banks but we were the only company specialising in the repair and draught sealing of old wooden windows. Colm was lucky enough to get a gig on local radio station 7HOfm to tell them about why everyone should look after and draught seal their old wooden windows.

Have a listen to Colm’s dulcet tones here.


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Wooden window graffiti

We sometimes find that carpenters like to leave their mark on the job they’re working on. Little scribbles here and there, that can’t be seen without really looking. Sealasash don’t do that of course – but actually you wouldn’t know if we did or not!

We recently found on a wooden pocket lining in a house in West Hobart the words ‘hung re hung August 7 1918‘.

Graffiti2It just goes to show how long wooden sash windows can last for if cared for.  We’re often working on windows well over one hundred years old. Aluminium and plastic alternatives would have to be replaced time and time again over the same period.



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We’ll be at the HIA Homefest in Hobart this coming weekend, with a couple of renovated ‘tip shop’ windows on display.

In preparation for the weekend and to remind people about the draughts and cold that comes through gaps around old wooden windows and doors, we’re advertising on 7Hofm in Hobart with an ad read by Old Man Winter himself.

Have a listen here!

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Our latest video shows Sealasash back at the stunning location of Bantry House, Co. Cork, Ireland. Our international team was welcomed back there just before Christmas 2015.  Sealasash had previously carried out a thorough assessment of the old wooden windows and made recommendations for work to draught seal and repair them in line with the property’s renovation plans.


Sealasash report


Philip showing the brush seal

Philip showing the brush seal

Sophie at Bantry House was able to use the report to obtain a grant to have some work done and so Sealasash returned.

Philip from Sealasash explains how the Sealasash window renewal system works.

Watch it here.

Sealasash at Bantry House – Part 2


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Sealasash Christmas Banner

Sealasash has now shut up shop for the Christmas holidays and will be back on Monday 11th January.

We look forward to hearing from you in the New Year.

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Our close friends at the Centre for Heritage at Oatlands are currently working with the Royal Tasmanian Botanical Gardens to help preserve two important stone walls at the gardens. The Arthur Wall and the Eardley-Wilmot Wall. As we know walls are just as important as windows, in fact we couldn’t survive with them!!

This coming Sunday 29th November they’re running some demonstrations and tours of the work being done on the walls.

Some information is provided below, or you can contact [email protected] for more.



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Get a glimpse of the work that goes into the installation of our draught sealing system with this short time-lapse video shot recently at the Royal Engineers Building in Hobart. As well as seeing the guys rig up a temporary banner on the building to let the passing traffic know we were there, you’ll see the work of removing sashes, installing cords and weights, draught seals, re-assembly and testing – multiple times! Watch how the windows glide up and down as they’re supposed to!


Click here or on the image above to watch the video. And make sure you crank up the volume!!

The Royal Engineers building was built in 1846-47 at the start of Davey Street, one of the main routes into Hobart.  The Gothic  Revival style building once housed the senior members of the Royal Engineers, who were responsible for arranging all works in the colony. It’s now rented out as office space and the new tenants wanted to do something about the draughty windows. You can find out more about the history of the building here


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As our wooden window business grows we’re constantly on the lookout for talented people. We’re currently recruiting in Melbourne.



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Join our team

We’re looking for a talented individual in Melbourne who is keen to join us in our mission to care for old wooden windows.

We currently have an opening for a Sales and Operations Assistant. This varied role requires an enthusiastic person with at least 1 year’s experience in the following: carpentry, joinery, draught sealing and glazing work on wooden windows, including in heritage buildings.  The applicant also needs good people skills and IT administration capabilities to assist with sales.

Please send CV and details for 2 references to [email protected] by Friday 21 August 2015.


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Those of you in Melbourne need to know that the Herald Sun Home Show, at the Melbourne Exhibition Centre, starts next Thursday 13th August.


If you have wooden windows and want to talk to the experts about how they can be draught sealed, repaired and made to work better than new then come and see us on stand M01 at the show.

John and some his key team members will be there for all four days of the event to talk wooden windows and doors.

Come and see us there.



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Working on heritage listed properties is a fairly common occurrence for the Hobart Sealasash crew.  This week we’ve managed to get some ‘action shots’ of some skilled repair work done on some very old wooden sash windows. Rot repairs are the most common, particularly when sashes have been painted in or not opened for a long period.


Very old sash with rotten glazing bars and rail removed. We always try to keep old glass intact.


Eli makes a section of replacement glazing bar with hand tools


Glazing bars shaped and epoxied to original bars

Our lead carpenters have all had training in the Burra Charter, which defines the basic principles and procedures to be followed in the conservation of Australia’s historic places. This means that we replace as little and retain as much of the original structure as possible.

The shot below shows the result of some of the work done, aside from the draft sealing on the windows. The glazing bars have been repaired and the sash rail shaped and checked for fitting.

Repairs to the sash are done and ready for re-fitting to the frame.

Repairs to the sash are done and ready for re-fitting to the frame.

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We’re teaming up with old friends  Sustainable Living Tasmania to run a Wooden Windows Workshop in Hobart on 22nd July.

Experts from Sealasash’s Hobart team will be there at the SLT rooms on Murray Street to show you how to fix common problems in wooden windows, how to draught seal and tell you everything you need to know about the anatomy of windows.  


Don’t miss it if you have wooden windows in your home.

Wednesday 22nd July 6pm-8pm at SLT, 1/71 Murray St, Hobart.

Book your places here.

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Wooden sash windows have been around for a long time. They were designed and in use by the Europeans at home long before Australia was settled by them. And while certain elements of windows have changed, the basic design and mechanics have been the same since the start.

In the seventeenth century pulleys and weights were first applied to timber sashes and frames and the double sash window was born. They were installed throughout the United Kingdom in the 1680s and 90s.

These very early windows had very chunky and solid frames (stiles and rails). The sashes were divided by small wooden rails or
mullions which suited the limited size of the poor quality glass. The wood used was generally heart wood, which is much better quality and long lasting than newer woods used in building.




The eighteenth century brought larger panes of glass and slimmer timber profiles. By the middle of the century the familiar Georgian window with 6 panes to each sash had become common. These windows were glazed with a better quality of glass. Often known as crown glass it had curved ripples, air bubbles and distortion which can still be visible. Glass like this is no longer made so it is important to keep it in historic buildings when possible. Sometimes however it has to be replaced because it is damaged during repairs or too dangerous to leave because of cracks. Some glass is so thin that it does not stop heat transfer or noise very well.

The Georgian pattern continued to be popular in the nineteenth century but other configurations such as lying or horizontal panes were also being developed. Larger, heavier panes of glass became more common and eventually sashes were glazed with single large panes of plate glass.

Sash frames and joints were strengthened to suit, for example horns were invented so that joins did not rely on the wooden dowel, or tenon, to hold the weight of the window. Horns are another part of the window that often have to be replaced.

Replacement 'horn' for top sash window.

Replacement ‘horn’ for top sash window.

The 'horn' from the top sash before repairs.

The ‘horn’ from the top sash before repairs.


As large panes became fashionable, old sashes with multiple small panes were sometimes altered – their glazing bards were removed and they were glazed with larger panes of plate glass.

At the end of the nineteenth century and start of the twentieth century small paned sash windows, sometimes with chunky glazing bars, became briefly popular again, mostly as a reaction to the trend towards ever-larger panes.

Windows of this period can often combine a multiple small paned upper sash with a single or two pane lower sash. Upper sashes from this period sometimes incorporate stained glass, a feature that was to remain into the 1930s.

In the mid 1950s the wooden sash as we know it started to fall out of fashion, leaving, however over 200 years worth of wooden sash windows in buildings throughout Australia. Old sash windows are both significant and important to architecture and our built heritage. If cared for they can last for many, many years. So if your beautiful sash windows are looking a bit worse for wear get in touch with the team at Sealasash today.

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Sealasash in suits selfie_IMG_6851

Sealasash selfie outside Parliament House, Hobart.

Colm and John attended Parliament House in Hobart this Monday, to present to the Legislative Council Sub-Committee who are conducting a review of the value of built heritage to tourism in Tasmania.

Theirs, one of 58 submissions to the Committee, was one of the few chosen to be questioned by the Committee. While their core focus is of course wooden windows, their submission rather looks at the bigger picture for Tasmania. It examines the importance of heritage buildings to Tasmania’s tourism industry and also the economy. The paper  suggests ways that the government can build on the huge wealth of heritage assets in the state and also use heritage to further education and employment around the industries involved.

Sealasash’s submission, as well as others,  is available to view online here


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This coming Friday we’ll be running a workshop for the Centre for Heritage at Oatlands, an organisation dedicated to the conservation, restoration and preservation of heritage.  Oatlands is a well preserved, historic village in the midlands of Tasmania, nowadays well known for the Callington flour mill.

We’ll be sharing information on how to repair and maintain old wooden windows.  The day-long course will consist of a good balance of theory and practical exercises and is open to anyone who has an interest in looking after heritage properties and their unique characteristics.

If you wish to make a booking visit or enquiries to Brad on 0418 303 184.


Window workshop flyer

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Day One saw us breaking ourselves in gently for what’s looking to be a HUGE weekend at the Melbourne HomeShow.

Stand J46 at the Melbourne HomeShow

Stand J46 at the Melbourne HomeShow

Traditionally quieter on the Thursday, we still had a steady stream of visitors to stand J46.


Answer: YES WE CAN!!

The Sealasash Window Renewal System will bring your old wooden windows back to life. Once we’ve unstuck the paint, pulled out nails and dismantled your windows we put them back together, make repairs as needed and install our draught-sealing system. This provides a low-friction surface for your wooden sash windows to glide open and shut beautifully

So yes, not only will your windows work. They’ll work better than ever before – and won’t rattle or let in dust and air!

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Sealasash will be at the HIA Melbourne Home Show – which starts today (Thursday). We’ll have two renovated sash windows on display, both installed with our unique draught proofing system. Talk to Sealasash directors John and Colm about the problems your windows cause you and they’ll run you through how the Sealasash Window Renewal System can bring your old wooden windows back to life.

We look forward to seeing you at Stand J46!



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In case you missed, or don’t receive, our latest newsletter you may not have seen the video made at Bantry House in Ireland earlier

Videotitlethis year.

Our expertise in the restoration and repair of old wooden sash windows gave Sealasash the chance to carry out an assessment and some work on the windows at this heritage listed stately home in rural County Cork.

Have a look at the video here.


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HIA Homefest in Hobart

This coming weekend 28th February and 1st March, we’ll be exhibiting at the HIA Homefest at Princes Wharf 1 on Hobart’s waterfront.

Come and see our renovated windows on display, chat to the guys about the recent work at  Bantry House, Ireland and other heritage properties  we have on the horizon. Or just how our draught sealed windows can transform your home – no rattles, no dust and more energy efficient heating and cooling systems.


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This Saturday come and see Michael and a  renovated display window at Woodend. Chat to him about how the draught sealing system can improve comfort in your home, and recent work we’ve done at Mintaro mansion, local to Woodend.

The Macedon Ranges Sustainable Living Festival is on from 10am-4pm at the Woodend Community Hub, Saturday 28th February.

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This year Melbourne’s Sustainable Living Festival has expanded out to the suburbs and the countryside. We’ll be attending a few events this coming weekend, to inform and educate people about how their old wooden windows can be sustainable and add to their own sustainability efforts by saving on heating and cooling costs.

On Saturday 21st and Sunday 22nd we’ll be at the CERES True Earth Market in East Brunswick.


True Earth SLF Market flyer











On Sunday 22nd we’ll be at the Smart Building and Living Expo in Buninyong and the Proud to be Yarra festival at the Abbotsford Convent St Heliers Street in Abbotsford, Melbourne.

We’ll have renovated wooden sash windows on display at each event and key members of our Sealasash team on hand to answer all of your questions about draught proofing, repairs and renovations to old wooden windows.



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Sealasash team members have been using their specialist skills in Ireland recently. We were given the opportunity to assess windows and do some work at one of Ireland’s most famous heritage stately homes, Bantry House in County Cork.

Colm and his team did a thorough assessment of around 34 windows, inspecting the sills, sashes, puttying and glass to produce a report and recommendations for the repair and draught sealing of each.

Watch the video here

Euro van_230115

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A sneak preview

Sealasash have recently visited this mystery location to have a look at the (many) windows.

Any guesses as to where it is are welcome on our Facebook page.


Mystery location

Mystery location



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What’s on this week

This week the Melbourne team are working on the Mintaro mansion at Monegeetta. Sold just over a year ago for approximately $2.8m, the new owners have just started on the work to restore the mansion and its grounds to its previous splendour.

We’ll keep you updated with pics of the work in progress as it happens.

Mintaro mansion, VIC


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This week an enlarged Sealasash team, including  two (Eli and Dean) normally based in Melbourne, is working on some slightly different windows in the Bronte building at historic Willow Court in New Norfolk, Tasmania.

Having attended to most of the regular up / down sash windows in the building on previous occasions the guys are this week repairing and restoring these huge ‘Yorkshire sliders’ – pictured below. They work the same way as the up and down, except they move sideways and yes, they’re still referred to as sash windows.

First the reglazing and then cleaning of the 30 panes of glass on each sash.

Sam cleaning panes.

Sam cleaning panes.

Eli reglazing and busy with the putty.

Eli reglazing and busy with the putty.


Dean also reglazing.

Dean also reglazing.

Once seals are installed then it’s time to put the huge sashes back into the frames.

Phil and Dean checking the sash before fitting.

Phil and Dean checking the sash before fitting. 

Phil adjusting the corner.

Phil adjusting the corner.

Phil and Dean showing off their work to John off camera.

Phil and Dean showing off their work to John off camera.


Once the guys are happy and both panes fitted then the job is done, for that window frame at least! We love working on heritage properties and Willow Court has given us a lot of satisfaction over the last year or so.

Call us if you know of any heritage properties that need some Sealasash love and attention!

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Sealasash Birthday Email Squares4 This weekend Sealasash celebrated its 3rd birthday back where it all began at the Sustainable Living Festival on Hobart’s Princes Wharf.

Now it’s time to celebrate with our Melbourne customers – with some exclusive special offers – just for you!!

All you need to do is spread the good word about our work! 

If you can introduce a new client to Sealasash, who commits to have work done before Christmas, you’ll receive a free bottle of Tasmanian bubbles. Your referral will get a 10% discount off the regular quoted price…and a bottle of bubbles too!!

Sealasash Birthday Email Squares17
Call Michael on 0400 618 719 or email [email protected] for more information

Note: These special offers are for our Melbourne customers only!! 

Have you already had work quoted, but not committed? Call us to book work in to be done before Christmas and we’ll give you a 10% discount off your previously quoted price.


Have we worked on some, but not all, of your windows, and you’d like more done? We’ll offer a 10% discount on all work booked in to be done before Christmas. Conditions do apply, just email us at [email protected] for more information.

Sealasash Birthday Email Squares10 Note: These special offers are for our Melbourne customers only!! 

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Back to where it all began!


Hobart’s Sustainable Living Festival is on again in early November, only two weekends away, at Princes Wharf 1 on the waterfront.

This year we are again proud sponsors of the event that helped us launch into the world of preserving and restoring old wooden windows. Three years and 3000+ windows later we’re still keen to show the residents of Hobart how looking after and draught proofing windows can help in the quest for sustainability.

Find out more about what’s on at the Festival below, and don’t forget to come and see us!



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Visit us on stand Q24 at Grand Designs Live, Australian premium home show. Held at the Melbourne Convention and Exhibition Centre from the 17-19 October, the show will showcase the latest trends and designs. Book your ticket at the date in your diary and see you there!


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As we continue our quest to encourage people to keep their old wooden windows and have them repaired, our Melbourne team have a great example of work done this week.

Pictured below left is the ‘horn’, which you’ll find at the bottom of the top sash, that had to be removed from one window. It was in such bad condition that many people would have thought the window past repair. However the Sealasash team made a replacement horn which  was fitted into the existing timber window frame.

The 'horn' from the top sash before repairs.

The ‘horn’ from the top sash before repairs.

Replacement 'horn' for top sash window.

Replacement ‘horn’ for top sash window.


This is just one example of repairs we make to old wooden windows and shows that there’s no job too hard for our talented team. So repairs can be done and we need to spread the word to stop people pulling out and replacing old wooden windows.

Keep in mind these wise words from English Heritage:

“By combining repair with draught proofed secondary glazing, total heat loss could be reduced to one-quarter of that of the window in its original state; and by even more at night with shutters, curtains or blinds in place. Thus it is certainly not essential to replace existing windows to obtain levels of improvement in thermal performance that make traditional timber sash windows comparable with standard modern windows.”

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Feel the Spring air!

It’s the first day of Spring today.  Meaning of course longer, warmer days and an opportunity to freshen the house. Opening your old wooden windows and getting the air flowing is a great way to freshen up rooms, so being able to open windows properly is a must.

If you have double hung sash windows it’s important to be able to open both the top and bottom sashes. That way the cool air comes in at the bottom and the warm air goes out at the top.

Many people have windows that don’t open at the top and are unaware of the way that these old windows were designed to work. So remind yourselves about the school physics lessons on convection currents and get those windows open properly.

Sash window open top and bottom

Sash window open top and bottom

Air flow through open sash window

Air flow through open sash window

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If you’re in or around Melbourne next weekend come and see us at the Herald Sun Home Show. It’s on at the Melbourne Exhibition Centre from Thursday 14th to Sunday 17th August.

We’ll have real – sourced from the tip – wooden sash windows that we’ve lovingly repaired, renovated and draught-proofed on display.

Check our site and Facebook page as we’ll be giving away free tickets in the next day or so.


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Now operating in Ballarat

If you missed our last newsletter you’ll have missed the news that Sealasash  has hit Ballarat.   If you’re in the area and have wooden windows in need of our attention for repairs and draught proofing then get in touch.

Sealasash Map

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Focus on heritage

We’ll be in Oatlands this weekend for the Heritage Skills and Trades Weekend, being run by the Centre for Heritage at Oatlands. The Centre for Heritage is committed to the restoration and conservation of heritage buildings and sites for valued re-use, a niche into which Sealasash falls quite nicely. John will be at the workshop talking about some examples of work done on heritage buildings with a particular focus on the ability to retro-fit energy efficiency measures to old windows, as we’ve done at Willow Court in New Norfolk.

Come and see us there.

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On the hunt for talent

We are on the lookout for some carpentry talent who will suit the Sealasash style. If you know anyone you think might be suitable send them our way. We’ll be advertising in the Hobart Mercury newspaper this coming Saturday 7 June with the following words:

CARPENTER. Min 5 yrs exp. Previous conservation work on windows in heritage buildings necessary. Also required: experience with contemporary sealing systems, joinery and glazing expertise, and sales and leadership skills. CV and references to [email protected] by 23rd June 2014.

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After a successful time at the HIA Home Show in Melbourne, we’re now off to Better Homes & Gardens LIVE!

Come visit us at Better Homes and Gardens LIVE Melbourne!

Taking place from 2-4 May 2014 at the Melbourne Showgrounds, this event is not only a fantastic opportunity for you to get all the latest advice, tips and products to make your home and garden the envy of the neighbourhood, it’s a great outing for the whole family. And this year, with over 250 exhibitors, Australia’s biggest home and garden show is even Bigger and Better than before and is set to be an event to remember.


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Team Sealasash

The Sealasash team smiling after a good couple of day’s work at the CCAMLR offices in the old Hutchins Boys School on Macquarie Street.

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Sealasash will be at the HIA Home Show at Princes Wharf 1 this weekend 1st and 2nd March.

We’ll have a couple of renovated and draught sealed sash windows on display so come along and see what we can do for your old wooden windows.

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Watch us at work

We’ve posted some videos onto our YouTube Channel showing our work last year at the Willow Court heritage precinct in New Norfolk, Tasmania. Click here to find us on YouTube.

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Some of the Sealasash team are currently working on renovating windows in a hidden gem of a building in Hobart.
The University’s Domain House, hidden behind some trees near the Hobart Aquatic Centre, is rarely seen by passing traffic and relatively unknown amongst Hobartians.

Domain House is a grand neo-Gothic sandstone landmark built in 1848-49. It originally began its life as the Hobart High School and became the site of the University of Tasmania when it opened in 1890 and until it moved to Sandy Bay in 1963. Subsequently the site was home to the Tasmanian School of Art and TAFE Tasmania. It was re-acquired by the University of Tasmania in 2011 and is now undergoing conservation work.

Sealasash were contracted by the builders, Bennett Construction, to re-instate over 100 hundred windows back to working order and also instal the Sealasash draught sealing system into them. Working on renovations such as these is a pleasure for the Sealasash team who are all aligned with the company’s vision of retaining the architectural beauty and heritage of buildings such as Domain House.

Picture below are our fabulous team members – Pejman, Phil and Dean (left to right).

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Sealasash had the privilege of working on the amazing Customs House building in Launceston yesterday.

Here’s a shot of Dean in action on ‘not your average’ window.

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Sealasash in Tasmanian Life Winter edition
This winter’s edition of Tasmanian Life magazine has dedicated a whole page to the services that Sealasash can offer. OK so half the page is an advertisement – but the top half tells a little bit of the Sealasash story.

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Work at Bronte on film

We’ve been busy working on the Bronte building at Willow Court, New Norfolk.

See us on video here

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Working in partnership at Willow Court

A strategic partnership has been announced by the Centre for Heritage at Oatlands, uniting their heritage restoration and conservation arm, Heritage Building Solutions with Sealasash. The partnership brings together unrivalled skills to enhance the livability and as necessary adaptive reuse of Tasmania’s heritage buildings.

Both Sealasash and Heritage Building Solutions are committed to the restoration and conservation of heritage buildings and sites for valued re-use and are excited about the partnership.

Heritage Building Solutions is committed to ensuring Tasmania’s built heritage remains a key feature of our landscape and continues to provide value to owners and the community. “The partnership with Sealasash reflects our commitment to achieving energy efficiency and comfort within our heritage buildings” Heritage Building Solutions board member Martin Farley says.

Sealasash owners John Brennan and Colm O’Shiel are both passionate about preserving heritage properties. Colm says “This strategic partnership is an excellent way of using our specialist skills to conserve Tasmania’s wonderful range of heritage homes and buildings. We hope that this alliance will increase awareness of the skills that are available to heritage property owners, and ensure that Tasmania’s unique history is looked after for the benefit of future generations.”

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Thanks to the Examiner newspaper in Launceston, Tasmania for their great feature on us in their Winter Warmth feature today. The Examiner particularly highlights our work on heritage properties and the bare fact that there is no point in heating a house if draughts aren’t sealed!

We’ll be heading to Launceston soon so keep an eye out for our vans and book an appointment if you have some draughty, rattly wooden windows.

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Treadlightly Envirofest is on from 10am-4pm on Sunday 21st April

Royal Tasmanian Botanical Gardens is hosting the Treadlightly Envirofest again this year. We’ll be there alongside other sustainably minded people with a couple of renovated sash windows on display. Come and see how our draught proofing system works and feel the windows glide open and shut.

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We’re busy today and tomorrow – yes on a Saturday – working on draught proofing windows at the historic Old Hutchins Boys School on Macquarie Street in Hobart.

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Sealasash will be at the HIA Home Show at Princes Wharf 1 this weekend. Come and see our windows in action. To find out more click here

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We’re off to Melbourne

Sealasash are heading to Melbourne for the Sustainable Living festival 15-17th Feb!!

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In the news: Sealasash at the Sustainable Living Festival.

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Come and see the Sealasash team this weekend at the Sustainable Living Expo, Princes Wharf

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  • Tasmania
  • Victoria
  • Western Australia
  • New South Wales
  • Somewhere Else


 Colm  0404 641 206  John  0400 478 666

Contact Form or email us at


 Colm  0404 641 206  John  0400 478 666

Contact Form or email us at

Western Australia

 Henry  0468 675 833

Contact Form or email us at

New South Wales

 Colm  0404 641 206  John  0400 478 666

Contact Form or email us at

Somewhere Else

Unfortunately Sealasash does not operate in your area at this point in time. If you're interested though, please use our contact form to let us know so we can possibly expand to your area in the future.