BFRC is the UK’s most trusted ratings council for proving product performance in the window and door industry. Our widely recognised rainbow rating system provides independently verified proof of the energy and noise reduction performance of windows and doors. When manufacturing, installing or choosing windows and doors, you need more than unsubstantiated claims – you need impartial proof that they will perform as promised. 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.