Our Services

Whether you know exactly what you need, or you’re struggling to decide, we’re always on hand to give professional, friendly advice from staff with over 30 years experience.

  • FREE survey, measuring and quoting service

  • Solutions to suit every budget

  • 5 day turnaround on most orders

  • Installations within 10 days of placing your order

  • FREE delivery service within the local area

  • All of our installations come with Certass certification and a 10 year insurance-backed guarantee

  • “A” rated glass available on all products at a slight additional cost

  • Supply only or Supply and Install to the trade and general public

  • Domestic, commercial and local authority work undertaken, including schools

  • Conservatory base plans on request

Give us a call today on 0115 986 68 99 to find out how we can help you, or drop in to our on site Trade Counter for a friendly chat and to see our wide range of products for all of your window and door needs.

Why Choose Us?

“Thank you so much for a wonderful job. We are extremely pleased with our new windows and doors. We are feeling the benefits already – there are no draughts and no dripping windows. You have a great team, very polite, clean and tidy. I can’t recommend your company enough.”

Mrs Spencer

“We are absolutely delighted with our new windows and doors, delivered by a very professional team from start to finish. Our house looks great and was fitted out with minimum disruption. Thank you so much.”

Mr & Mrs Holland

“Thank you for handling my order for a new composite door. All of your employees had excellent customer service skills and a professional approach. A job well done.”

Mr Watkins

“I have to tell you how impressed I am with your company. Nothing has been too much trouble, and you never tried to hard sell. You measured up, gave us lots of ideas, went away and rang back with an affordable price. Your staff have such good customer services skills, you should be very proud. I cannot recommend you enough.”

Mr Crogan

“All work was carried out on time, and the workers were extremely polite and very friendly. I would highly recommend Thermaseal to friends and am so glad we chose you.”

Mrs Draper

Thank you and the Thermaseal staff involved in fitting my door for the efficient customer service I received.”

Miss Ralph

“I would like to take this opportunity to thank you all for the warm, friendly and professional service we have received from start to finish with regard to the work we needed doing at our home. The new soffits, fascias and guttering have really made a difference to the look of our home and we are very pleased indeed.”

Mr & Mrs Hudson

“Thank you for supplying our door and windows, we are very pleased. Not only are we happy with the products, we are also extremely glad that you sent Carl and Ray to fit them. They have done a super job. First class!”

Mr & Mrs Voce

“Many thanks for the punctual work and competent workforce.”

Mr Dunsdal

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Our team will be in touch as soon as possible to discuss your needs.

Call Us Today

Our friendly and professional team are always happy to help.