Keylite have reinvented the Roof Window

Every Keylite roof window shares the same DNA.

They are the result of thousands of hours of research and development focused on perfecting every aspect of their operation. Our programme of continuous research and development is focused on making the experience better for both the installer and the end user.

Keylite windows are available in Top Hung, Centre Pivot, Fire Escape and Conservation, with 3 finish options, PVC, White Finish and Pine. Keylite has a number of unique patented features which sets the product apart to improve the ease of fit and thermal efficiency of the room.

These include:

Thermal Collar

Unlike other roof windows available, the thermal collar is integrated into the window frame. The collar is activated by simply pulling release tabs for a fast insulation solution, solving the issue of the 20mm gap around the window. Learn more about “The Gap”


The Flick-Fit brackets are pre-fitted, enabling the installer to get the window from the box to the roof in under 2 minutes..

Finger Spring

This unique Keylite feature enables the installer to refit the sash into the frame in one smooth, easy motion.


Every Keylite roof window is recessed as standard, sitting lower in the roof than before. The recessed fit enhances the overall appearance of the roof and improves the thermal performance of the window. The recessed fit is achieved with the use of our standard flashings.

All at no
Extra Cost

Keylite offers all these great features as standard, where other roof windows may require the use of additional cost accessories to achieve the same performance as Keylite.

Keylite windows are available in Combinations, Vertical Bi-lite’s, Sun lights, Apex Systems and unique to Keylite is a custom design special orders service to meet even the most challenging of design specifications.