What is a U-value? Window and door energy ratings explained
U-values measure how much heat passes through a window or door. Learn how to read them, what counts as good and how they relate to Window Energy Ratings.
Read the adviceHow to improve your EPC rating: where windows and doors fit in
An honest look at what really moves the needle on an Energy Performance Certificate, and where new windows and doors help.
Read the adviceTriple glazing vs double glazing: is it worth the extra?
An honest comparison of triple and double glazing covering insulation, noise, cost, weight and when each is the right choice.
Read the advice
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