We can restore your wooden windows and make them better than new.
By introducing air-tight draught seals and ultra-high performance double glazing you’ll achieve incredible levels of comfort, noise reduction and energy efficiency.
Vacuum glass can deliver exceptional thermal performance, but there are a few important details worth understanding before installation. In this article, we explain what the sorption getter is, why it exists, why it can sometimes be visible in older timber windows, and what that means in real world retrofit applications.
We completed a full sealing and performance upgrade across multiple rooms, installing 6.38mm Comfort Plus laminated glass to key windows (including two fixed sashes), core-servicing the remaining double-hungs, and servicing the double entry door with Q-seal. The home is now noticeably tighter, quieter and smoother to use, and the client praised the excellent communication, workmanship, and respectful crew over the 3-day project.
We completed a core service to five original double-hung sash windows, upgrading three (bedroom and bathroom) to E-Tech glass including toughened glass to the bathroom, removing the colonial bar for a single clean pane, and making the top sashes inoperable for better sealing. The job was finished in two days, left spotless, and the windows now open and close with ease while holding temperature far better.
Exceptional Service and Quality Fitzroy North. We completed a core service and upgraded the front double-hung window to 4mm E-Tech while keeping the stained glass sidelites intact. The rattles and draughts are gone, and the front room now sits a few degrees warmer — finished with antique brass hardware.
This Howard Street, Kew project upgrades 10 original double hung timber windows in Sir Robert Menzies’ former home with 6.1 mm Panasonic vacuum-insulated glass. Sealasash retained the arched sashes and colonial bars, added discreet draught and acoustic sealing, and carried out targeted sill and joint repairs to boost comfort and performance while preserving the home’s heritage character.
Sealasash completed a retrofit double glazing Windsor project on Normanby Street, installing 19 panes of Panasonic Glavenir vacuum glass, including intricate arched panes, while preserving the home’s heritage charm.
Looking for vacuum glass with no dots? Panasonic’s Glavenir uses black ceramic micro-pillars that blend into shadows—far less visible than translucent supports.
Sealasash delivered retrofit double glazing Hobart Eastern Shore with 18.56m² of 8.1mm Panasonic Glavenir Toughened Vacuum Glass, draught sealing, and spiral spring upgrades for a warmer, safer home.
In Feb 2025, Sealasash completed a retrofit double glazing Hobart project with 22.97m² of Panasonic Glavenir Vacuum Glass across 28 panes, making the home warmer, quieter, and more efficient. A Panasonic representative flew from Japan to see this milestone.
Sealasash delivered retrofit double glazing Melbourne in Shoreham, installing 52m² of Panasonic Glavenir Vacuum Glass across 67 panes. By replacing old 4mm glass and adding expert draught sealing, the cedar home is now warm, quiet, and energy efficient.
Discover what retrofit double glazing really means and why quality matters. Learn how Sealasash combines expert draught sealing, detailed repairs, and premium glass — including Panasonic Glavenir — to preserve heritage windows in Melbourne and Tasmania while delivering modern comfort and efficiency.
Sound can greatly impact our comfort, especially in urban or high-traffic areas. While standard laminated glass like 6.38mm VLam™ provides moderate noise reduction (Rw 33), cutting-edge solutions like Glavenir™ by Panasonic offer next-level performance in a slimline format. With a vacuum layer between two panes, Glavenir mimics the silence of space — where “you can’t hear someone scream.” The 8.1mm toughened version performs on par with bulky double-glazed units, making it ideal for heritage or space-limited applications.
