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The Firmfix range of double glazed windows is extensive and includes the following:
British Standards : Peace of Mind
All of our double glazed windows are made and fitted to the British Standards. Firmfix is regularly inspected by the BSI for the fitting and manufacture of our windows and doors. Our products are also stringently tested every year at the BSI testing site to ensure conformity. So by choosing Firmfix you can be sure of quality double glazing that is fitted correctly every time.
An ideal replacement for those who want to keep the traditional look… Find out more>