10 Year Guarantee on Doors and Windows

10 Year Guarantee

KAT manufacture a wide range of Doors, Windows and Roof Glazing in Aluminium and PVC.  We offer a 10 Year Guarantee, as standard, across our range of products. Visit our website.

What the Guarantee covers

KAT warrants for 10 years from date of purchase of KAT Doors and Windows (Standard Warranty Period) that the doors and windows will be free of defects in material, design and workmanship subject to Clause 1.2 and 1.3 of the Warranty. This warranty does not apply to glass. Download a brochure.

Products covered by the Guarantee

KAT Aluminium Bifold Doors, Patio Doors, Single Glazed Doors, French doors and PVCu Bifold Doors, Sliding Patio Doors, Sliding Sash Windows, Lantern Roofs, Flat Roof Lights. 

Vanguard door handles Guaranteed for 10 years

Our door handles are luxury products, made exclusively for KAT in Stainless Steel and guaranteed for 10 years.  With 6 finishes to choose from, you’ll be spoilt for choice.

Aluminium Patio Doors

Aluminium Patio Doors and Fixed Lights above

Visit our website to see more products in our extensive gallery.



Lantern Roof

Lantern Roof

Schuco doors and windows

Schuco doors and windows made by KAT in the UK
















External finishes, coatings and foils on all KAT products are not guaranteed if they are installed within 500 metres of the coast. For full details of our Warranty please contact KAT on 01625 439666.