Business Details
39 Years
experience
Trusted Windows and Doors Installer in Warminster
Established in 1987, Thermaglaze Windows & Conservatories has grown to become the largest independent home enhancement company in Wiltshire, Dorset, and Somerset. Our 37-year journey has been driven by a commitment to quality, innovation, and customer-centric service, with over 180,000 satisfied customers. We specialise in supplying and installing energy-efficient windows, doors, conservatories, and roof replacements, adhering to strict CERTASS-approved standards. Our team of experts combines technical proficiency with a no-pressure approach, ensuring tailored solutions for every homeowner.With a 10-year product guarantee and no deposit requirements, we prioritise transparency and trust. Our acquisitions of Clearglaze Windows and Firmseal have expanded our reach while maintaining our founding ethos of excellence. From initial consultation to aftercare, we deliver a seamless experience, supported by a village showroom and a reputation built on reliability and craftsmanship.
Services
uPVC Windows
Aluminium Windows
Composite Doors
Conservatory Roof Replacements
Aluminium Doors
Conservatories
uPVC Doors
Garage Doors
Orangeries
Lantern Roof Systems
Details
- Year established: 1987
Highlights and features
- We have over 37 years of experience in home improvements.
- Our team adheres to strict CERTASS-approved workmanship standards.
- We offer a 10-year product guarantee on all installations.
- No deposit is required, with free no-obligation quotes available.
- We serve Wiltshire, Dorset, and Somerset with local expertise.
Associations and certifications
- CERTASS
What people say
Friendly installers
No pressure sales
10-year guarantee
Tidy workmanship
Excellent service
Services
uPVC Windows
Our uPVC windows combine energy efficiency, security, and aesthetic appeal, available in casement, flush, sash, and cottage suite designs. Tailored to meet modern insulation standards, they reduce noise and lower energy bills while enhancing property value. With slimline options and customisable finishes, they suit both traditional and contemporary homes.
Composite Doors
Solidor composite doors offer superior strength, thermal performance, and security, featuring durable timber cores and weather-resistant outer layers. Available in modern and traditional styles, they provide long-term durability with minimal maintenance. Customisable colours and hardware ensure a perfect match for any property.
Conservatories
From uPVC to aluminium designs, our conservatories create versatile living spaces with year-round comfort. Featuring thermally efficient roofs and frames, they maximise natural light while blending seamlessly with existing architecture. Ideal for families seeking additional space without the cost of traditional extensions.
Aluminium Windows
Bespoke aluminium windows provide sleek, low-maintenance solutions with slim sightlines and 150+ RAL colour options. Resistant to corrosion and warping, they offer modern aesthetics and durability for both residential and heritage properties. Enhanced security features ensure long-term peace of mind.
Garage Doors
We supply and install garage doors in up-and-over, sectional, roller, and side-hinged designs, combining functionality with security. Crafted from durable materials, they enhance kerb appeal while offering smooth operation and insulation. Customisable finishes ensure alignment with property style.
Questions
What areas do you serve?
We cover Wiltshire, Dorset, Somerset, Bath, and North East Somerset, with a village showroom near Warminster.
Do you offer guarantees on installations?
Yes, all installations come with a 10-year product guarantee for added peace of mind.
Are your installers certified?
Our team adheres to CERTASS-approved workmanship standards, ensuring high-quality installations.
Can I get a free quote?
Yes, we provide free, no-obligation quotes with no deposit required.
What products do you specialise in?
We specialise in uPVC and aluminium windows, composite doors, conservatories, roof replacements, and garage doors.
Reviews (4)
Shannon Miles
Jun 19, 2022
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Excellent quality product, and any small issues were rectified immediately. Thermaglaze obviously consider their customers to be of paramount importance and that is evident by the politeness and professionalism of the fitters and the sales and office staff. Highly recommend.
Anne Challenor-Wood
Jun 04, 2022
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I have been a loyal customer of Thermaglaze (Warminster) for many years. We have gone back to them for further double glazing on more than one occasion and have recommended them to many other people. In February of this year I asked for quotes for three further home improvements. We were visited by their sales person and approximate measurements taken. I am still awaiting the quotes and it is now June 5th.
I have emailed and have spoken to them on at least three occasions, including to the manager Rob in early May, who promised to investigate and get back to me within a few days. I am still waiting. I cannot tell you how much I regret having to write this review but feel I have no choice. I also have a failed unit in my our porch door which I first reported a year ago, and again in February when I was told the job would be put on the service list. Nothing has happened about that either. Very disappointing.
I have emailed and have spoken to them on at least three occasions, including to the manager Rob in early May, who promised to investigate and get back to me within a few days. I am still waiting. I cannot tell you how much I regret having to write this review but feel I have no choice. I also have a failed unit in my our porch door which I first reported a year ago, and again in February when I was told the job would be put on the service list. Nothing has happened about that either. Very disappointing.
Anita Fern
May 09, 2022
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Very dissappointed. Firstly the company let us down on our orignal date of installation. Secondly after fitting we noticed a chip in the frame. i contacted the company and forwarded photos. I asked them if they could please replace as i had spent over a thousand pound per window. I got no apology but they did agree to replace the frame. Then they let me down again on the actual day of fitting. I have now wasted three days holiday, and due to the frame needing replacing, we have come to a standstill in the decorating of the bedroom. I am now waiting again for them to contact me with yet another date This has been ongoing since 13th April 2022 and still unresolved. CHECK ALL YOUR FRAMES!
Lee Moore
Jan 23, 2022
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New fully glazed back door fitted by Thermaglaze, Dom was very helpful during the ordering process and made a special trip to us to help us get the right colour. The fitter was very friendly and did an excellent job, and checked we were happy with everything before leaving.
