KAT UK

Elegance Windows

Our premium vertical sliding sash window with 146mm or 133mm front to back frame ideal for the most sensitive conservation areas with a run-through decorative horn option.

Universal Windows

High-performance high-quality products made to your specifications. 128mm front to back PVCu Vertical Sliding sash frame.

Ten Year Guarantee

Our products are carefully checked throughout manufacturing.  We know our reputation rests upon rigorous quality control and that’s why we feel confident in providing a 10 year guarantee

Window Energy Ratings

KAT UK hold more WER certificates on sash windows than any other manufacturer and we also have the highest A rated sash window on the market! KAT Sash windows are all double glazed with 24mm low ‘E’ glass as standard for excellent thermal efficiency and are ‘C’ rated as standard.  Upgrades to ‘A’ and ‘B’ WER rated windows available as an optional extra.