About Us

British Fenestration Rating Council

The British Fenestration Rating Council is the UK’s most trusted rating council for verifying the energy performance of windows and doors. In 1997, BFRC was founded to establish the window energy rating system for the UK, to raise standards and drive performance in the industry. Now the BFRC is Europe’s No. 1 ratings council, with the most widely-used rating system.

Energy Ratings

Proven Performance

The BFRC rainbow rating confirms products have been independently verified by experts in building physics and have been assessed to ensure the whole system will perform as promised. This gives installers and homeowners the evidence they need to make the right choice for each home’s window and door energy performance requirements.

So, when manufacturing, installing or choosing windows or doors, remember that invisible performance matters and only a BFRC rating can be truly trusted to prove it.

Proof your products will perform as promised.

How BFRC ratings work


Collaborate with BFRC

BFRC collaborates across the window and door industry with organisations big and small, private and government in the United Kingdom and abroad, to raise standards of performance. If you have an interest in energy efficiency in buildings then let's discuss common goals and possible collaboration.


Enquire about collaboration


Traceable supply chain