Zellers is an established local supplier and installer of double glazed PVCu windows, Aluminium windows, entrance doors, patio doors and bespoke conservatories in Harrow, Pinner, Stanmore and a wide area across London, North West London, Middlesex, Hertfordshire and Buckinghamshire.

Originally based in Kenton lane, Zellers are experienced double glazing installers with thousands of satisfied customers across north west London. Customers enjoy a brighter outlook with our superb range of  A rated PVCu windows, Entrance Doors including an extensive new range of stylish composite doors,  Bi-fold "folding" doors, french doors and sliding patio doors, doors that combine style with strength, safety, security and of course energy efficiency. New Generation direct fix Aluminium replacement windows, entrance doors and sliding patio doors, folding Aluminium doors offer discerning customers a stunning slimline and robust alternative to PVCu.Our bespoke aluminium conservatories and orangeries add value to your home. All Zellers double glazing products comply with the latest building regulations and come with the peace of mind of a 10-Year Insurance backed Guarantee. For advice and a free no-obligation quotation on your double glazing needs please call our sales advisors on 01895 273338 or visit our factory showroom in Uxbridge.  Zellers PVCu and New Generation Aluminium windows, doors and bespoke conservatories can be installed efficiently and at competitive prices, giving you years of maintenance-free enjoyment.