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Thermotech | Building Work, Extensions, Roofline


Hundreds of customers have talked about how pleased they were with Thermotech’s installations. Have a look at our gallery and some of the fantastic work we have carried out for happy homeowners!





Single Storey Extensions

Become our next satisfied customer

  • Expert Fitting Teams
  • 100% Satisfaction Record
  • Family Run Business
  • A Rated Windows as Standard
  • 10 Year Building Guarantee
  • Great Quality Products

Serving South Wales & the West

Based in Monmouthsire, we have been providing quality windows, doors, conservatories, roofs and building work all across South Wales and the West for over a decade. Come and visualise your home improvements by visiting our showroom in Chepstow.