Energy Rated Window and Doorsets

The performance of double and triple glazed, energy-efficient windows and doors depends on a number of factors including how well they stop heat passing through the window, how little air can leak in or out around the window and how much sunlight travels through the glass.

Assure Rating Register LogoWindows and Doors are rated and labelled using a familiar ‘traffic-light’ system to guide end-users towards energy-efficient products. Window Energy Ratings (WERs) and Doorset Energy Ratings (DSERs) are illustrated on a scale of A++ to E.

There are a number of recognised certification bodies that issue appropriate licences, and audit the companies using them, to ensure the correct specifications are being used for given Ratings.

Window Energy Rating certification bodies include the Assure Rating Register and the British Fenestration Rating Council (BFRC).

Door energy rating

Window energy rating

More information about energy-efficient products can be found by clicking here.

The Energy Saving Trust operates an endorsed product standard and information about this can be found at EST Online

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Please note: Assure Ratings Register is a stand alone scheme and members of this scheme may not be members of the Assure Competent Persons Scheme, to check this please enter the company name in the Confirm Registration box at the top of this page.

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