Energy Savings Calculator

Calculate your potential savings when you choose energy-efficient glazing

Energy-efficient windows can help to reduce your home’s energy usage and save you money on power bills for years to come.

Use the GGF Energy Savings Calculator to calculate how much you could save by installing energy-efficient window systems in your home.

You can also enter what you expect to spend on replacing your windows into the calculator, in order to find out how long it would take you to recoup your investment in the form of energy savings.

Calculate your potential savings