Double glazed sliding sash windows | THI Home Improvements

Double Glazed Sash Windows

Our double glazed sash and casement windows give you the authentic look of a traditional window with outstanding modern benefits and performance; see the difference for yourself.

Our traditional sash windows are ideal for period properties and conservation areas. Not only do they look beautiful and give a perfect finishing touch to your home, but the expert design and craftsmanship of all of our double glazed sash windows, means they are low maintenance and easy to operate, free from sticking, wobbling or shaking.

Call now to get up to 50% off all double glazed sash windows

Our range of handcrafted replica timber framed sash windows give outstanding value and contemporary performance. Our key features include:

  • Traditional styling – Flush sash and casement windows available in a range of traditional finishes, authentic enough to be used in conservation areas
  • Virtually maintenance free – Advanced composite construction ensure windows will never rot or warp
  • Warm and quiet – Market leading energy efficiency and superb sound insulation. Triple glazing can also be fitted to further increase thermal and acoustic performance
  • Safe and secure – Glass is structurally bonded to the sash ensuring the highest level of security
  • Handcrafted in the UK – Ensuring the quality finish of a real craftsman, not an automated assembly line

All of our double glazed sash windows are carefully and expertly crafted to give a luxury finish and a perfect fit ensuring that they not only look great but they retain heat and eliminate draughts too. With our expertly crafted sash windows you won't have any trouble with sticking or wobbling mechanisms.

​Are sash windows as safe as other varieties?

Of course, all of our products are tested to adhere to high security systems, our windows are structurally bonded to ensure they are as secure as possible. ​

How long will the project last?

Because every project is unique, including the number of windows to be fitted, and what needs to be replaced, our team will give you a time frame from your initial consultation and ensure we stick to it.  ​ 

​How much will they cost?

Because each project is unique costs can vary but we use our buying power and sharp planning skills to ensure our prices are competitive. We also offer finance packages to help spread the cost of your new windows.​ ​

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