How to soundproof your double glazed windows

Imagine spending thousands of dollars on retrofit double glazing to get almost no benefits? Find our how our draught and acoustic seals significantly reduced outside noise for one Melbourne customer.

This horror story happened to one of our customers.

Like most people, they had assumed that by buying new double-glazing, they were buying quieter windows.

They had used a prominent and reputable double glazing window company in Melbourne.

The double glazing was installed to a high standard.

The windows fitted well, and had been painted after the works. There were even some new draught seals to keep additional noise, dust and air out!

Although their new double glazing wasn’t great, it wasn’t terrible either. The windows looked terrific. In a sense, the job was well done.

The trouble with their new double glazed window was the traffic noise.

When I stood inside their apartment on Toorak Road, South Yarra in Melbourne, I could hardly believe it myself. The windows may as well have been open (when they were in fact fully closed).

Now, I’ve been with Sealasash for about six years at this point.

I know our customers often report noise reduction. But when I stood in this apartment, I started looking for other places the sound could be coming in. Just like everyone else, I saw these double glazed windows with minimal air gaps and thought “there’s no way all this noise could be coming through these windows”.

I was worried the benefit of our services would be marginal under the circumstances. But the customer was really keen to get a result.

They had seen our work and thought we could deliver.

The effect of our draught and acoustic seals for timber, wooden and sash windows

So, we installed our acoustic draught seals to their windows (and doors) to reduce traffic noise. The result was breathtaking.

So much so, the customer left a 5-star review on Google.

We had Sealasash install seals to all our external facing windows and doors and were very pleased with the end result. We’d already double-glazed all windows and glass doors through the entire apartment as we are on a busy road but were disappointed at the lack of noise reduction with the double-glazing. Sealasash inspected our property, advised on the solution, were very professional and respectful of the needs of our body corporate and neighbours and did a great job in less than the time first allocated to the job. Darren and his team were great and we highly recommend them with the end result having greatly reduced noise and draft throughout our apartment.
Very happy.

For more information about draught and acoustics seals for your windows and doors – click here.

If you would like to talk to a timber window expert who understands all your options, and who will listen to your priorities, then please don’t hesitate to contact us.

Looking for double glazing for your sash windows or wooden windows?

Sealasash can double glaze your old timber, wooden and sash windows with new high-performance glass.  We also upgrade windows to include draught and acoustic seals that further improve the comfort and energy efficiency of your windows. 

Learn more about Sealasash:


Vacuum Insulated Double Glazing

Our ultra-high performance double glazing fits perfectly within your existing timber work, eliminating any bulky or expensive modifications.


Fix Those Annoying Rattles

With our draught and acoustic seals you’ll achieve amazing new comfort levels by reducing infiltration of outside air, noise and dust without the annoying rattles.

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Using traditional craftsmanship and modern materials, we’ll restore your windows and make them better than new.  This includes high-performance double glazing and draught seals that will dramatically improve the comfort and energy efficiency of old timber, wooden and sash windows.