Flat Roofing Installation & Repairs

At Thompsons Roofing we can install and repair a range of flat roofing systems including GRP Fibreglass Roofing Systems, EPDM Rubber Roof Systems and Felt Roofing.

We specialise in high quality flat roofing systems which are guaranteed for 25 years. Unlike traditional felt GRP Fibreglass Roofing and EPDM rubber roofing provide a flat roofing system that is completely watertight and is strong, durable, cost effective and maintenance free.

As the leading flat roofing company in the area, for both commercial and domestic customers, we offer a professional installation service using only the best quality products. Our highly qualified and experience team are expert installers of GRP Fibreglass roofing and EPDM rubber roofing systems.

If you would like more information about how we can install your flat roof do get in touch for a free, friendly no obligation quote.

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GRP Fibreglass Roofing Systems

This is the ultimate stylish flat roofing system and comes with a 25 year product and craftsmanship guarantee. Developed and manufactured in the UK by a leading team of scientists and product engineers and installed by our fully trained and approved installers, a GRP Fibreglass System is designed to provide complete waterproof protection for 100 years or more.

With more than 1000 different combinations of colours, styles and finishes available, your finished GRP Fibreglass System installation will provide a sense of perfection and style only GRP Fibreglass System can deliver.

Whether it is a small dormer or porch, new-build green roof, historic building or iconic cutting-edge architecture, GRP Fibreglass System’s versatility will ensure that it fits in seamlessly with your plans.

With a GRP Fibreglass Systems you are guaranteed to have the ultimate flat roof in the UK and one which will stand the test of time.

EPDM rubber roof systems

Most residential flat roofs are straightforward rectangles. This means we can install a single sheet of EPDM rubber to cover your roof so you don’t have to rely on seams to waterproof it. Sheet size can be cut to fit your residential roof in just one piece. We have various roll sizes available.

The installed prices of your roof will probably be similar to that of a quality felt roof  so you can have a flat roof to rely on at a fair price and also be very “green”.

A report by ACTAC (The Association of Community Technical Aid Centres Ltd) named EPDM as the best buy roofing membrane due to its low environmental impact in comparison to other membranes, high durability and re-usability.

There should be no reason to have to maintain an EPDM rubber roof. So long as the deck can withstand more weight you can even use EPDM rubber roofs as a garden or you can install paving or decking over it. All you will have to do is wipe clean the edge trim now and again.

EPDM rubber is UV and ozone stable so it never perishes. It stays flexible and can move with the building unlike static installation systems.


  • 10 year guarantee on workmanship
  • 20 year guarantee on warranty
  • 50 year life expectancy

Felt Roofing

Felt roofing is just one of the many options that you have when you need to replace or install your roof. It is made up of a few key components including bitumen which gives the product rigidity, tear resistance and a base product that is used to help with it being waterproof.

One main benefit of felt roofing is that it moves with the structure which means that felt roofs are less likely to break or tear under light stress such as a new house settling. As bitumen is a key component in the felt material it gives it added rigidity and makes sure it does not absorb water or allow water to pass through.

Felt roof products also have a long lifespan if properly maintained by just occasionally checking to make sure that there aren’t any leaks or holes in the material. As they are made in specific lengths and widths when overlapped to maintain integrity they can be applied on any size of roof, small or large.

When you are choosing what type to use we recommend that you go for a heavy duty felt to make sure it has a long term weatherproofing effect. It usually comes in 2 different ratings, 15 pounds or 30 pound and the 30 pound one is twice is strong. If you are only covering something light such as a shed, the 15 pound covering may be sufficient for your needs.

If the roof felting does happen to tear or rip then all you have to do is cut a piece that is large enough to cover the problem area. Make sure that there is a lot of room to overlap and then nail or stick it into place with adhesive and that should help quickly prevent any further leaks.

At Thompsons Roofing we specialise in all types of flat roof repairs – big or small. We also have an emergency call out service for storm damage.

We offer a friendly service and free no obligation quotes to both residential and business customers.

Get in Touch

If you would like to know more about our flat roofing services or would like a free quotation please call us on 0800 696 5795 or fill in the ‘Get a Free Quotation’ contact form and we will get back to you promptly.

Why Choose Us?

Here are just some reasons why you should choose to use our roofing company