About Topseal

Topseal offer a range of advanced GRP fibreglass roofing systems fitted through a national network of highly trained and approved installers.

Since our flat roof system was introduced back in 1992 it has been installed on millions of square metres of roofs all over the UK.

Topseal is the ultimate fibreglass flat roofing system suitable for both domestic and commercial works.

We continue to innovate and have recently launched a ground breaking direct lay flat roof system. This liquid applied flat roofing system has secured BBA certification and is suitable for refurbishments and new builds.

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Design Your Roof

With a wide range of colours and finishes to choose from Topseal can produce a completely bespoke roof, just the way you want it. Click below to design your perfect Topseal fibreglass flat roof.

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Simulated Lead

Topseal fibreglass is used extensively as a lead/copper replacement or alternative for roofs, gutter linings and complex architectural detail work.

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Installer Verification

Every Topseal installer is allocated a unique verification number to prevent 3rd party misrepresentation. You should always ask any Topseal installer for their verification number. Enter it below to confirm their identity.

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Latest News


  • How Topseal Are Making Your Home More Habitable

    May 29 2018

    Not content with revolutionising the flat roof market, Topseal is now bringing light to the dark places of the world.

    Well, the UK at least, with Solatube Lighting Systems.

    ...Continue reading

  • GRP Roofing Courses

    May 09 2018

    There is a wide choice of GRP Roofing Courses across the UK, but only one leaves you with Topseal accreditation, able to install the most popular flat roof system in the country. Find out more.

    ...Continue reading

Guide to flat roofing

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