At Firmfix our range of double glazed doors is extensive and includes the following:

British Standards : Peace of Mind

All of our double glazed doors 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 a quality product that is fitted correctly every time.

Majorly tested at the BSi testing site, our residential PVCu doors have successfully passed weather, endurance and security testing. Quality doors, built to last… Find out more>

The ideal way to make an entrance! Firmfix composite doors can transform your home adding that finishing touch… Find out more>

Firmfix French doors give you the opportunity to open up a living space giving you maximum opening with our slim-line systems… Find out more>

A unique and stylish way to let in that cool summer breeze whilst keeping your pet inside or outside… Find out more>

Bring the outside in with Firmfix bi-fold doors. Our new folding, sliding doors are the perfect way to enhance any living space… Find out more>

Designed to the highest standards, and made from minimal maintenance PVCu, our inline patio doors will operate smoothly and reliably for years to come…. Find out more>

How can we help?

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