In Harcourt, Victoria, Sealasash recently completed a retrofit double glazing Harcourt project that brought modern efficiency to a charming heritage property. The home’s traditional double-hung windows, complete with side lights, were fitted with outdated single glass that struggled to keep out the heat in summer and the cold in winter.
Our team upgraded the old panes to Glavenir Vacuum Insulated Double Glazing by Panasonic, a revolutionary glass technology designed to deliver exceptional insulation in a slim profile that fits directly into existing timber frames. Laboratory testing shows this vacuum glass can be up to 8.5 times more efficient than old single glazing, making it a transformative upgrade for homes like this one in Harcourt.
To complete the work, we installed our draught and acoustic sealing system across the windows. Sealing is critical to performance, preventing air leakage and reducing unwanted noise from outside. As highlighted in our Simple Solutions Work article, it’s often the simplest upgrades that make the biggest difference.
Preserving Heritage, Delivering Comfort
This project demonstrates how heritage timber windows can be preserved while achieving modern standards of performance. Instead of replacing the original frames, we carefully retrofitted the new glass and sealing system into the existing joinery, ensuring the property retained its traditional look. For more on how glass choices affect efficiency, see our guide to understanding window performance.
Results of Retrofit Double Glazing in Harcourt
The Harcourt home now benefits from:
- Windows 8.5 times more efficient than single glazing
- Draught-free interiors with better thermal comfort
- Reduced external noise through acoustic sealing
- Retained character of original double-hung and side light windows
This retrofit double glazing Harcourt project shows how advanced Panasonic vacuum glass and precision sealing can deliver modern comfort without compromising heritage style.
