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Thermotech | Entrance, Bifold and Patio Doors

Patio & French Doors

Both of these types of doors can be praised for letting in more natural light, making an entrance more secure and generally creating a more spacious living space. Like all of Thermotech’s doors, both French and sliding patio door options pass vigorous tests and prove that they are efficient in terms of thermal insulation, weather proofing and security. It’s just a case of choosing which one you feel will suit your home best!

French doors

Otherwise known as French windows, this option is made up of glazed doors fitted into an outside wall, serving as a dual window and door, typically opening on to a garden or balcony. Whether you want to stay cosier in the Winter or create an easy house-to-garden entrance, then French doors are a great choice.

Being glazed with large panes of glass means that this type of door lets in as much natural light as possible. This is great if you want to make your living space look and feel more spacious, however small (or big!) your room already is. Along with natural light, Thermotech’s French doors retain more heat and keep out the British weather.

Creating a seamless entrance from patio or garden to an inside room is made even easier by Thermotech. Our uPVC French doors come in a range of colours, meaning French doors can be as subtle or attention seeking as you like.

Patio Door

Similar to the French door but utilising more glass, Thermotech’s patio door helps to make the most of your living space and garden or patio.
Utilise much more natural light and feel more connected to your surroundings with this option. Fitted with high-spec glazing or self-cleaning glass, this sliding door lets you feel close to your garden or patio, but with the added bonuses of sound and thermal insulation.

Thermotech’s sliding patio doors come in a choice of colours, including white, oak and rosewood. This makes it easier to blend your door with the style of the rest of your property, whether you live in an older or more modern property.


"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

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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.