Stunning 'A' Rated double and triple glazed window systems

Here at Thermaglaze we supply and install stunning new windows designed to suit every type of property for both the replacement domestic home improvement and the new build market.

Window installations have been at the core of Thermaglaze since it’s conception in 1987, and as such has been an integral part of our product offering. Since the early days of offering only uPVC products in basic styles and colours our window offering has evolved into a wide choice of styles, colours and finishes, including contemporary aluminium offered in a choice of over 200 RAL colours. Traditional timber windows are also an important part of our product range and are hand-crafted by local craftsmen who take exceptional pride in their high quality work.

Our Sutton Veny based showroom is open 5 days a week offering a friendly, zero-pressure environment from which our loyal customers can browse our entire product offering while enjoying a cup of delicious fresh coffee.

a refreshingly relaxed approach

Visit us for a great cup of coffee and a relaxed browse of our product range at our Warminster showroom.

  • CERTASS Approved Installations
  • Double or Triple Glazing
  • Traditional
  • Contemporary
  • Crittal Replacement

Our A-rated windows can reduce the energy required to heat your home, minimising your energy bills

Stunning new windows designed to suit every type of property

10 year no-quibble guarantee on all installations

From listed buildings to new build projects, our industry backed 10 year guarantee is standard on all our replacement windows, doors and conservatories. Want to find out more about our guarantee?

Professional CERTASS approved installations

The Thermaglaze team is experienced and trained to a high standard to install, and only use the highest quality materials to ensure your windows achieve thermal efficiency, long lasting durability and are finished to a superior standard. All Thermaglaze installations are CERTASS approved.

Windows – Style
Recommended by a friend. Presentation of quote and details - highly professional.
M H, Warminster, Wiltshire
Used several times before due to the quality of materials and excellent installations.
D J, Westbury, Wiltshire
Have used Thermaglaze several times before and always pleased with the work; very efficient, clean & tidy. Wouldn't use anyone else!
Mrs J W, Warminster, Wiltshire
Want to find out more?
Get in touch for a pressure-free chat
Visit our Showroom
12-14 Pound Barton, Sutton Veny, Warminster, BA12 7BT
Want to find out more about our showroom and get directions?
  • We'll beat any equivalent quote
  • 10 year warranty on all installations
  • No deposit required
  • Over 30 years experience
  • 20,000 existing customers can't be wrong
Want to know more reasons why to choose us?