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Firmfix quality BSi kitemarks for manufacture and installation of windows, doors & conservatories

Casement Windows

Our casement windows are individually designed, then manufactured and installed to the British Standards. Firmfix is regularly inspected by the BSI for the fitting and manufacture of our windows and doors. They are also stringently tested every year at the BSI testing site to ensure conformity. So by choosing Firmfix you can be sure of a quality product that is fitted correctly and built to last.

Internally or Externally Beaded

We offer both internally beaded and externally beaded options. The biggest majority of our customers choose the externally beaded options. This is because the externally beaded windows have slimmer lines and produces a better, more traditional looking window. The glass is bonded to the frame and cannot be removed if the beads are taken out. They have also passed the BSi 7950 high security test as proof.

Energy Rating

Our energy ratings range include A, B or C rated windows with the A rated achieving a +8

Please refer to the Product Information above to see more information on how we fit and our choice of finishes and furniture options.

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