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Thermotech | Entrance, Bifold and Patio Doors

UPVC Doors Monmouth

If you’re based in Monmouth and are looking for the best UPVC doors South Wales has to offer, look no further than Thermotech. Our family-run business has years of expertise in the industry and can help to provide the premium doors you have been looking for.

First Impressions Count

Given that people form an impression within the first seven seconds of laying their eyes on something, the front door of your home can have a serious impact. It is definitely a feature that you should not compromise on. The door of your property provides the overarching feel of your home, so it is essential that you make your Monmouth home look inviting and hospitable.

At Thermotech, we offer a variety of different types of doors to complement the appearance of your home as well as your style preferences. Whether you prefer composite front doors or bifold sliding doors, we offer a range of materials and designs that all have the same, high-quality finish.

Included Security

As well as guaranteeing that you will be 100% satisfied with your new door, they all come with an inbuilt Yale security system. This means that you can rest assured you and your home are protected from intrusion in Monmouth. The excellent security system enables all our doors to effortlessly pass PAS 24 security standards, and we are proud to be one of the few suppliers whose products are part of the Secured by Design police initiative. Don’t just take our word for it, our doors are approved by the highest of authorities!

Impressive Durability

When you buy a door, whether it is a standard UPVC entrance door or a new wave design, we believe that you should make this investment knowing that it will stand the test of time. This is why Thermotech doors are rigorously tested to ensure that they are robust. Part of this process involves replicating the life span of a typical door, by opening and closing it up over 50,000 times. Yes, we do this for every single one! We even put the doors into a pressurised chamber that replicates an environment with winds of up to 100mph. Rest assured that your doors will stay firmly shut during the autumnal Monmouth winds!

Contact Us

Speak to the friendly team at Thermotech to find out how we can upgrade your Monmouth property. There’s no better company to provide you with fuss-free installation and the expertise to provide the door that is right for your home. Give us a call on 0800 917 1106 or email – our experts are waiting to hear from you!


"From our first introduction to Thermotech through to the completion of the conservatory, our expectations were exceeded. From the foundation to installation the workmen were friendly, clean, polite and worked to a very high standard. My wife and I would recommend your company with confidence Thank you"

Mr and Mrs Evans, Rogerstone. conservatory installation

"The workmen were extremely conscientious, very clean and tidy when working. Very impressed with the quality of the products also. Our new front door exceeds our initial expectations. We would definitely use the company in the future and would recommend you to friends and family."

Mr and Mrs Body, Chepstow. New front door and window

"The whole process was excellent. The construction was very solid and well built with quality materials, especially the roof section and insulation which was magnificent. The workforce were also excellent especially your fitter with his superb skills. I can really recommend your services to anyone and would be happy to sing you and your companies praises"

Mr and Mrs Chapman, Magor. Solid roof sunroom

"Very pleased with the service provided by Thermotech. All workmen were friendly and Karl ensured their work was up to scratch throughout the process. Nothing negative to say- could not criticise and would definitely recommend and also use Thermotech again. Fantastic Job, great value for money and easy 10 out of 10 for overall experience."

Mr and Mrs Haddock, Blackwood Gwent. Conservatory installation

"We are delighted with our new conservatory. Karl managed the project and always responded quickly to any communications. The quality of the conservatory is excellent. Thank you Thermotech"

Mr and Mrs Morris, Caerwent Monmouthshire. Conservatory

"We are very happy with the excellent work involved in building our conservatory. Everything has been done to or satisfaction, quickly and efficiently. A job well done and we would have no hesitation in recommending the company in future."

Mr and Mrs Mitchel, Magor. Conservatory installation

"My wife and I would like to congratulate and thank you for erecting our conservatory to a very high standard indeed. Al workmen involved in the build were very polite, on time and worked extremely hard. Each and every member knew what was required of them to complete a first class conservatory. We are very pleased with the end result and would certainly recommend your company to others."

Mr and Mrs Edwards, Llangstone Newport, Conservatory installation

"Karl was very helpful and approachable throughout. All workmen involved in the installation were friendly and professional during the installation. Good after sales service when needed. Overall great company and would not hesitate to recommend or to use again. Already had many enjoyable and relaxing hours in the conservatory and look forward to many more."

Mr and Mrs Whittington, Shirenewton. Conservatory installation

"From the 1st telephone call asking for a quote to the fitting was like clockwork. Once order was excepted it was installed within 3 weeks. 1st class product, fitted by first class fitter by a first class company. Thanks."

Mr Wright, Chepstow

"Having seen the product at your showsite we knew what we wanted and the product fitted the bill in both quality and appearance. The installation of the door was carried out in an excellent manor, the fitters were extremely good, friendly and displayed excellent attention to detail. In conclusion, excellent product fitted by excellent staff"

Mr and Mrs Cramp, Tuthil Chepstow. Composite front door

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.