Double Glazing Companies in East Midlands

List of East Midlands based installers, suppliers & manufacturers offering window & door double glazing, installation, repair & replacement services.

Business Listings

Win-Dor is a top home improvement and double glazing company, serving Northampton, Milton Keynes, Bicester, Oxford and the surrounding towns and villages for more than 35 years. We manufacture all our windows, doors and conservatories (uPVC and aluminium) ourselves guaranteeing you will get the best quality home improvements, and of course, the best price.


We provide an instant response for domestic and retail clients, petrol stations, those in the fast food trades and public houses throughout the area. Our normal response is within 1 hour of your call. All work is fully guaranteed and all staff are CRB checked for your piece of mind.


Crystal Living are experts in home transformation. With over 25 years of experience, we know exactly what it takes to help you create your dream home wherever you are based in Cheshire, from Hale and Bowdon to Prestbury, Wilmslow and the surrounding areas. Unlike many home improvement companies, we are proud to offer a complete design and installation service.


Stop Heat Loss, Draughts & Noise with Black Knight Secondary Windows Black Knight Secondary Glazing units are designed to give increased thermal & acoustic insulation & security. Keep the period character of your existing windows and stop annoying draughts, heat loss & traffic or aircraft noise.



Having been established now for almost 13 years gives us great confidence that we are more than able to handle any task. With a truly remarkable skilled team we really pride ourselves on outstanding quality work. We never cut corners and we ensure that every single thing we do is built to last, so much so we guarantee it!

  • Thanks so much you have made a great job, and treated our house with respect even cleaning

We are suppliers of trickle vents, desiccant beads, etc to the upvc trade / industry. We deliver for free all over the UK. We also have a retail shop just click on the retail shop link. If you can't find what you are looking for just call us we will be more than happy to help.


We are suppliers and installers of quality windows & conservatories including replacement fascias & soffits across Derbyshire & surrounding counties. All of our staff are extremely well trained and offer an efficient, friendly and above all professional service at all times.

  • Fantastic service, lovely guys, very happy with our new front door and front windows.

WindoWoman is a Kettering, Midlands, based family business established by Sally Keech. After 11 years in the industry as a fitter, this girl decided to do it for herself! Double Glazing, and indeed any home improvements, can be an expensive and sometimes stressful experience. Our mission is to make the process as simple and comfortable as possible at every stage.


Based in the heart of Leicester in the East Midlands, Sign Windows have been manufacturing and supplying high quality windows, doors and conservatories for more than 25 years. Our testimonials page on this website will show you that Sign Windows are not your regular double glazing company.


ClearTherm Limited are specialists in glass sealed units. Manufacturing a range of designs, including leaded, georgian and stained units. ClearTherm Limited was incorporated in 1988, its principle activity being the manufacture of hermetically sealed double glazed units. Back in the early days nobody could have predicted that ClearTherm would progress to become one of the midlands major suppliers of