Find 2 Door & Window Companies You Can Count On in Derry

All Purpose Glazing provides comprehensive glass and glazing solutions for residential and commercial clients across Ireland and the UK. With over 35 years of experience since 1983, we specialise in bespoke installations, emergency repairs, and supply-and-fit services. Our expertise spans safety glass, fire-rated systems, double glazing, and decorative features, supported by a modern fleet and a team of accredited professionals.

Compass Windows & Doors, established in 1977, is Northern Ireland's premier manufacturer of high-quality timber, aluminium, PVCu, and Alu-clad windows and doors. Serving residential and commercial sectors across the UK and Ireland, we blend traditional craftsmanship with modern technology to deliver durable, aesthetically pleasing solutions. Our commitment to sustainability and FSC-certified materials ensures environmentally responsible practices.