double glazing windows in birmingham

Replacement Windows

Here at Mainstream Windows we've been installing quality UPVC windows & improving homes throughout Birmingham, Worcestershire & beyond for over 20 years.

Our UPVC double glazing uses the UK's most energy efficient window system - SafeChoice, meaning that our windows can reduce your home's heating bills, not to mention make your home more secure, quieter & more stylish! Our range includes Casements, Tilt & Turn, Sliding Sash & recently launched Triple Glazing.

Colour Options


Features and Benefits

  • Energy Rated Windows - Reduce your heating bills!
  • High security performance
  • Low maintenance UPVC window frames
  • Advanced double glazing technology with Pilkington Glass
  • High acoustic performance - Reduce unwanted noise
  • The World's best weatherseal gasket
  • The UK's best performing window system
  • Available in a wide choice of colours 
  • Maximum performance triple glazed windows available
  • Each product is tailor-made to order
  • Free Comprehensive Guarantee

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