As Australia heads into another summer marked by extreme heat forecasts and continued cost-of-living pressures, more homeowners are reassessing how their homes perform in hot weather. Double glazing, traditionally associated with cold-climate insulation, is increasingly being considered for its ability to reduce heat transfer and support cooling efficiency. Companies such as Climateframe Double Glazing have reported a growing focus on heat-mitigation performance rather than winter warmth.
Electricity prices have continued to rise faster than inflation. Residential electricity costs increased by 19 per cent over the past three years, compared with a 12 per cent rise in the Consumer Price Index, according to The Guardian (Australian household energy prices have risen 19% in three years).
At the same time, the Bureau of Meteorology warns of more frequent and intense heatwaves nationally, with Western Australia among the regions expecting multiple very hot days.
Tony Hodgetts, Managing Director of Climateframe Double Glazing, says the trend reflects a broader shift in homeowner priorities. “People are recognising that managing summer heat is just as important as staying warm in winter,” he said. “Reducing heat gain can ease the pressure on cooling systems and improve comfort during peak temperatures.”
How Double Glazing Performs in Hot Conditions
Double glazing consists of two panes of glass separated by a sealed air or gas cavity, forming a thermal barrier that slows heat transfer. Performance can be further improved with low-emissivity (low-e) coatings, which limit solar heat gain while maintaining natural daylight.
Government guidance also highlights the role of glazing in thermal comfort. The WA Government’s Energy Savings Quick Guide for Households notes that sealing and upgrading windows, including with double glazing, can support summer energy-management efforts.
Part of a Broader Shift Toward Energy Efficiency
Research from Sustainability Victoria estimates that up to 40 per cent of a home’s heating and cooling energy can be lost or gained through windows. Improving glazing performance, especially when paired with shading and insulation, can significantly reduce this.
While window upgrades are not widely subsidised under current energy schemes, glazing improvements are increasingly being incorporated alongside rooftop solar, smart thermostats, and heat pump systems as part of household energy-efficiency strategies.
About Climateframe Double Glazing
Climateframe Double Glazing is a WA-based manufacturer and installer of uPVC and aluminium double-glazed windows and doors. Established in 2015, the company provides locally made systems designed to improve thermal performance, reduce noise, and enhance long-term home comfort and value. For more information, visit climateframe.com.au.
