The Australian Government has expanded the Nationwide House Energy Rating Scheme (NatHERS) to existing homes, giving homeowners, buyers and renters a practical way to assess their home's energy performance and identify upgrades that can reduce energy bills and improve comfort.

Delivered by accredited assessors, the new Home Energy Rating considers factors such as a home's design, construction, climate, appliances and any installed solar or battery systems. Participants receive tailored recommendations on the most effective improvements, along with information on government programs and green finance options that can help fund upgrades.

The initiative addresses Australia's ageing housing stock, with around 70 per cent of the nation's 11 million homes built before minimum energy efficiency standards were introduced. Improving a home's rating from three to five stars can reduce energy use and energy costs by around 40 per cent.

For the building products industry, the expanded scheme is expected to increase demand for energy-efficient renovation solutions, including improved insulation, high-performance glazing and energy-efficient window systems. It also reinforces the important role that high-performing uPVC windows and doors can play in improving thermal performance, reducing heating and cooling demand, and helping homeowners achieve better energy ratings while enhancing year-round comfort.