First windows are strong and generously sized to ensure function and style in a wide range of homes and situations. Available with ThermalHeart technology in the Residential and Metro series for maximum thermal efficiency. There are upgrade ranges to meet the need for large ‘architectural’ sizes.

Custom Windows

First manufacturers have a wealth of experience in meeting special requests for custom windows and can advise about the possibilities. Specially tailored windows include curved, raked, arched and faceted designs as well as curved glass, glass blocks and louvre windows. Please contact your First manufacturer to discuss options.


W custom