The Sterling Aluminium Double Glazing Range of replacement windows, residential doors and patio doors gives you the blend of slim line looks and toughness you need when you want to enhance the comfort and good looks of your home. Created by BAC, the Sterling Aluminium Double Glazing product is tailor-made for you using bespoke profiles produced to the highest British Standards. We pay strict attention to quality in everything we undertake. Areas serviced: Romford & Barkingwww.bacwindows.co.ukFaringdon Av, RM3 8SP

Here at Zenith Staybrite we're more than just an energy-saving double glazing company; we're proud to be one of the leading suppliers of home improvements in the UK with over 38 years expertise and 2 million UK homes improved, you can trust our high quality products and first class customer service. Areas serviced: Romford & Barkingwww.zenithstaybrite.co.ukUnit 4/Stanton Gate/49 Mawney Rd, RM7 7HL

We are proud to say that Opus are one of the longest established window companies in the area serving local people for nearly 30 years. Founded by John Osborne and trading from the showroom in Collier Row for over 27 years, Opus take pride in their small family business which has continued to grow and be a successful company amongst other companies which seem to go into receivership year in, year out, which terminates all guarantees for their work. Areas serviced: Romford & Barkingwww.opus-windows.co.uk11 Collier Row Rd, RM5 3NP

When you choose the largest independent manufacturer and installer of high durability double glazing replacement windows and doors, PVC-U windows, doors, patios, and porches in the South East of England, you know that you?’re in safe hands. Areas serviced: Chelmsford & Braintree, Ilford & Chingford, Romford & Barkingwww.crystalwindows.co.ukUnit 1/King George Cl, RM7 7PN