Granada Secondary Glazing

Energy Saving Calculator

Learn how much money you'll save with secondary glazing

We’ve put together this handy tool to help you calculate, in real terms, how much money our secondary glazing products could save you both per day and per year.

Single Window

Simply enter the width and height of the window in question, an estimate of the internal and external temperatures, the amount of time you run your heating per day and the current unit cost of your energy.

The below is based on 6 months in summer and 6 months in winter

Whole Building

To work out the cost saving for the whole building, simply enter the total square meterage of windows within the property.

The below is based on 6 months in summer and 6 months in winter

Whole Building

*This calculator is based on estimates according to verified thermal test data. Results may vary depending on individual circumstance. We advise that you confirm expected performance before placing an order. Thermal data can be provided upon request.

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