About Us

Mainstream windows have been transforming properties throughout the West Midlands for over 20 years; our award-winning FENSA registered company are experts at installing double glazing to home owners as well as commercial applications.


Here at Mainstream our business is owned and run by our three experienced directors, all of which have a very active and hands-on role in running the company; we are a genuine family firm and pride ourselves on our friendly, helpful and professional approach.


All of our double and triple glazed products are market leading, energy rated and high security as standard. Each product is tailor-made to your exact specifications and our installation team are highly skilled with many years experience in transforming homes throughout the West Midlands.



High security, energy rated, durable and affordable double glazing...

We always provide our customers with the very best in high quality, high performance and durable double glazing and ensure they all achieve the very latest British and European standards. That’s why we use the SafeChoice range of double glazing and triple glazing windows, doors and conservatories. From high security SAC and Yale hardware, to Q-lon, the best weather gasket, together with the comprehensive range of colours give you all the choices you need for your home improvements. Our product offering include, Casements Windows, Tilt & Turn, Sliding Sash along with a high range of high security Composite Doors, Bi-folds, Glass Extensions, Conservatories and so much more.


Mainstream an Approved SafeChoice installer and are also registered with FENSA, the Fenestration Self Assessment Scheme, for companies that install double glazed windows and doors in homes throughout the UK.



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