Door Supplier & Installer in Newport & General Monmouthshire areas - Front Doors, Bi-fold Doors, Composite Doors All Available.
Don’t be a door mat – choose Thermotech!
If you want to pull up on your driveway and be proud of the door at the front of your property, then Thermotech has many quality replacement doors for you to choose from. Whatever your priority (or colour preference) we can help. We offer various styles and designs including French & patio, bifold, new wave and composite entrance options. Each of these types of doors boasts different benefits varying from creating more space, minimalist design and better security for your property.
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Innovation and quality from industry experts
We are lucky enough to provide the highest quality of doors on the market, with all of our range including, slide and swing bifold doors, composite doors to your typical uPVC entrance doors all being engineered with detail and care in mind. Combining these innovative designs with our industry knowledge, hassle free installations and friendly family-run ethos, Thermotech are the best option for your replacement doors. Not only that but we are a local company covering the Chepstow, Newport and Monmouthshire areas with our full range of composite, patio and French doors.
By providing replacement doors with such close attention to detail, all of Thermotech’s options meet building and standard regulations whilst also being stylistically pleasing. Part of their functional acknowledgment stems from their thermal benefits with all doors being fantastically rated for energy efficiency.
All replacement doors are also guaranteed to include Yale security systems, helping them to pass PAS 24 security standards with flying colours and for Thermotech to be an accredited member of the Secured by Design police initiative.
They pass the test!
Are you looking for high quality patio and French doors, composite doors, Bi-fold and new wave doors in the greater Monmouthshire area? We cover a range of areas in the locality including Newport. Along with style, thermal efficiency and security, Thermotech’s replaceement doors undergo vigorous testing. This includes mimicking the life cycle of an average door, including opening and closing it over 50,000 times and putting them in a pressurised chamber to simulate winds of over 100mph.
The British Standards Institution rewarded all of our doors with a BS6375, otherwise known as one of their highest accolades and a definite seal of their approval. Tests such as theirs prove that Thermotech’s products will last for years to come and survive even the most extreme weather conditions (fingers crossed we won’t be hit by 100mph winds any time soon – although we do offer tiled roof replacements too!).
So whether you prioritise ventilation, thermal efficiency, usability or look, Thermotech have the products that will most suit you and your home. Quality products combined with our industry knowledge, hassle free installations and friendly family-run ethos make Thermotech the best option when trying to find the best replacement doors for you or your home.
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Latest reviews
I spent a lot of time researching window companies that were both good value,supplied good quality products and had good reviews for their customer service and fitting. I'm glad to say that from that from the time of placing the order to the completion of the installation of our beautiful new windows everything was done as expected and on time. We were informed when the windows would be fitted and the fitters were there on time . They take great pride in their work and left us with quality windows that make a huge difference to our house. I would not hesitate to Recommend Thermotech products who are a local family business.
michael simms
March 3, 2023Recently had a single storey extension completed by Thermotech. Very professional and helpful throughout the project. Big thanks to Steve for all his hard work. Pleased with the overall finish. Would recommend this company.
Andrea Clements
March 3, 2024I would highly recommend Thermotech. I am so pleased with my new extension and windows. I found them experienced and professional from start to finish, with a high skill level in all areas.
Lorraine Bright
October 3, 2024Professional service from start to finish. Attention to detail and quality is Brilliant. Love my new front door. Thank you
Shannon Ryder
September 3, 2024Following a friends recommendation we contacted Karl to get a quote to replace our conservatory polycarbonate roof with glass. He gave excellent advice on the selection of the best grey glass and a good quote for the job, which we accepted. The installation was undertaken by Steve and Andy. They worked hard to complete the job in a day and a half in a tidy and efficient manner. They were polite and considerate all the way through. We now have a new roof which makes the conservatory look modern and up-to-date. It is wonderful to enjoy the conservatory even more than before with a lovely view of the sky, trees and birds. Thanks to Karl, who kept us well advised on the project, and his hard working team, all of whom we can sincerely recommend to do a great job. Looking forward to enjoying what we hope will be a wonderful summer in the comfortable conservatory.
alan Lloyd
March 3, 2023Amazing service!! Came out and measured up after a break in into our showroom, made it secure. Then came within Two days and fitted new glass. Even cleaned up all the mess from the break in. Would recommend to anyone
marc potter
March 3, 2024I used Thermotech to replace a conservatory in March 2022. The quality of the installation has been tested by heavy rain on several occasions and it is completely waterproof. I have now used the company to install nine windows and a patio door. The windows were difficult to remove but this task was completed with minimum damage. The finishing work around the revels is of such good quality that there is no evidence that the windows have been changed. Thermotech is a family run business which supplies quality products at competitive prices. The team take pride in their work and ensure that they get the installation right every time.
Philip Jones
March 3, 2023We have used thermotech on two occasions .the service we recieved from ordering to installation was excellent, Carl and Steve went out of their way to ensure a friendly and helpful experience we would highly recommend them to anyone thinking of having work done 5 star company phil&rose thompson
Phil Thompson
October 3, 2024They fitted us in quickly to replace some patio doors, and the man who came to fit them was so friendly and knowledgeable. They look fantastic, really smart, we're very happy with them. Will definitely use them again in the future if needed.
Harriet Challoner
October 3, 2024
🌟🌟🌟🌟🌟 Definitely a five star rating Absolutely delighted with the new front door! From the initial ordering process to the final fitting, the customer service was outstanding. The Thermotech team was incredibly helpful making the entire experience smooth and stress-free. The quality of the product exceeded my expectations, with exceptional attention to detail.The fitting was done with great precision, and the installers were professional and efficient. I couldn't be happier with the result. Highly recommend Thermotech to anyone.
Carla Higgins
January 3, 2025They fitted us in quickly to replace some patio doors, and the man who came to fit them was so friendly and knowledgeable. They look fantastic, really smart, we're very happy with them. Will definitely use them again in the future if needed.
October 3, 2024We have used thermotech on two occasions .the service we recieved from ordering to installation was excellent, Carl and Steve went out of their way to ensure a friendly and helpful experience we would highly recommend them to anyone thinking of having work done 5 star company phil&rose thompson
October 3, 2024I would highly recommend Thermotech. I am so pleased with my new extension and windows. I found them experienced and professional from start to finish, with a high skill level in all areas.
October 3, 2024Professional service from start to finish. Attention to detail and quality is Brilliant. Love my new front door. Thank you
September 3, 2024Absolutely superb, nothing was too much trouble; they went above and beyond to give us exactly what we wanted. They gave me the 'boot room' I wanted, storage for shoes, dogs stuff and loads more. Warm, cosy and dry. Would definitely recommend to anybody, we will certainly be using them again. Can't thank Thermotech enough x
Wendy Dix
August 3, 2024Thermotech brilliant yet again! Required some house roof advice and Thermotech called straight over. They arrive on time, never let anyone down and are just amazing. Thermotech are so trustworthy, professional and produce work of a very high quality. I wholeheartedly recommend them to everyone! Thank you ever so much Thermotech for always being so wonderful.
rhian
March 3, 2024Amazing service!! Came out and measured up after a break in into our showroom, made it secure. Then came within Two days and fitted new glass. Even cleaned up all the mess from the break in. Would recommend to anyone
March 3, 2024Cannot recommend highly enough - excellent. Karl responded to queries straightaway - great customer service, extremely knowledgeable. A fantastic installation experience. Steve is a highly skilled professional fitter with amazing attention to detail and exceptional quality of work. Everything was cleared up and left immaculate afterwards. Nothing is too much trouble. A huge thank-you to both.
Duncan Kew
March 3, 2024Recently had a single storey extension completed by Thermotech. Very professional and helpful throughout the project. Big thanks to Steve for all his hard work. Pleased with the overall finish. Would recommend this company.
March 3, 2024
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