Latest News


  • Topseal Installers London - No 1 for Fibreglass Roofing

    November 08 2017

    If you are looking for a flat roof to be installed or repaired in London, then Topseal are the people to call. Our team of approved Topseal installers are trained to the highest standards and are experts in flat roof installation and maintenance in London and beyond.

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  • GRP Installers London

    October 12 2017

    Looking for GRP Installers in London? At Topseal we pride ourselves on being the UK’s leading GRP flat roofing company, having installed millions of square metres of roofing over the past 20 years

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  • When is the best time to upgrade your flat roof?

    June 16 2017

    The answer to this is not ‘when it’s leaking!’ The key to taking care of any roof is regular surveys and inspections. If your flat roof is a GRP (Glass Reinforced Polyester) construction, like Topseal Direct Lay, then the chances are that it will last you for over 20 years and will be virtually maintenance free. If your flat roof is made from traditional materials such as Asphalt or Felt, then it is more likely that it will need regular inspections and ongoing maintenance.

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  • Protect a building from lead theft with GRP

    April 13 2017

    Lead has been widely used as a roofing material for hundreds of years. Many historic buildings, such as churches, universities and schools, still feature lead roofs as it is renowned for its durability,

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  • Become a Topseal Approved installer!

    March 23 2017

    “There’s good news for roofers and contractors - the market for flat roofing has grown steadily over the last two years (source AMA Research*). Although growth has been steady, it has been continuous

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Design your roof

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 flat roof.

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Simulated Lead

design your roof

Topseal 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.