Please call us to discuss your requirements 01691 674759 or 07514 732585 or book an appointment.

Rubber Roofs (epdm)

Roof Lanterns


We are delighted with our new conservatory and Guardian Warm Roof.  We now have a room we can use all year round. The installation was painless, the workmen cleared the site, removing old and installing new in 5 days.
I would highly recommend Thermseal Windows.

David Jones

Great service from start to finish. From placing our order to having the windows and doors installed was only a few weeks. The installation was stress free and we were asked if we were happy with each stage as completed. The product looks great, very happy customers and would definitely use Thermseal again in the future.

Rowena Poyntz-Wright

Absolutely fantastic. What a difference. Tony did an amazing job fitting windows and doors to the whole house. He was very clean and tidy and did a superb job! Thanks again Tony.

Tanya Louise Davies

I sent an emergency appeal out on Ask Oswestry. Thermseal came to my rescue within an hour. prompt efficient friendly service. 100% recommend this company fabulous. Thank you so much.

Gail Farnsworth Pre Moulders

Highly recommended. Tony came early than expected, very helpful and sorted out our holiday lets conservatory doors within half an hour. Thanks Tony.

Sandra Williams

Brilliant service. Had a small job ( replace guttering to front of house) to do that i needed sorting asap. Contacted Tony in the week and he quoted very quickly and reasonably. Agreed to what work I wanted done and he was there on the weekend sorting it. I enquired about another job that I thought needed doing. He was honest and open about it not needing doing yet. Any tradesman who only recommends on what works needing doing rather than chasing pounds is rare.

Jon-Anders Rowlands