upvc-supply windows

Quality UPVC Windows and Doors

Do you want to make a change in your home? Without a question, you want the best quality for your new PVC-U windows and doors.


Supply Double Glazing offers a wide range of UPVC double glazed windows in white, grey, and black, as well as sliding sash UPVC windows, and has done so for over 15 years! Visit our showroom to see the whole selection of UPVC windows we have available. The British Board of Agrément, which determines which building items are appropriate for use, has given our windows their seal of approval.


When you choose PVC-U windows and doors over other framing materials, you can rest assured that they will never flake, peel, rust, or rot, and that they will last a long time.

Casement windows

Add more personality to your home.

Imagine having windows in your home that are as durable as they are beautiful – and as elegant as they are energy efficient. You can make your favourite area quieter, safer, and more secure by replacing your existing windows with our PVC-U windows.

But that’s only the beginning; once you’re in your home, you’ll notice the difference with new windows that are the ideal colour match for your home, whether they’re White, woodgrain, Cream, Grey, Rustic Cherry, or any of our other Artisan colour options. You’ll notice the difference since our windows have a Green Guide A rating, which means they’ll help you save money on your energy expenses. This pleasant sensation will endure for as long as your new windows do.

Our specialist installation teams cover Central London, North London, South London, Earls Court, Chelsea, Kensington, Westminster, Fulham, Brent Cross, Hendon, Finchley, Muswell Hill, Golders Green, Harrow, Stanmore, Pinner, Ruislip, Ickenham, Iver, Richings Park, Guildford and Kingston. If you cannot see your specified area please call to confirm we operate in your location.

Bay windows

Add more light and space to your home.

Wouldn’t it be nice to have a little more room? You may get it now by simply replacing your old windows with our bay windows. Consider the impact that extra room might have on your home. Whether you’re outside or inside, you’ll have a superior view.


Outside, you’ll appreciate the improved look. You’ll notice that the room is more roomy inside. White, woodgrain, or Artisan coloured windows are available. 

Whatever choice you choose, your PVC-U windows will not rot or lose their appearance over the course of their long life. Added thermal efficiency also implies lower energy bills in the long run.

Bow windows

Bring in more of the natural world.

With our beautiful replacement PVC-U bow windows, you can bring more of the outside in. Our bow windows elegantly increase the area by being made out of your existing walls, giving your home a whole new dimension. While they’re innovative, they’re also a rather simple installation option for creating unique replacement windows.

More light and space will be added to your home. With a choice of White, woodgrain, or 12 gorgeous Artisan colours, you may add even more style to your home. 

With our innovative locking system, you’ll have more peace of mind – and more peace and quiet, thanks to the sound-deadening benefits of double glazing.