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.

Overhead Glazing

In situations where extra light is needed, fixed overhead windows using First profiles are an appealing option. Overhead glazing can be supplied in a wide variety of designs, from small skylights to large glazed features. First also offers a standard roof window with clever features.