Certified Roofing System

Certified Roofing System

Our GRP flat roofing systems have been installed on many thousands of homes and businesses over the last three decades. To ensure quality is maintained, our products can only be installed by roofing businesses that have been through our intensive training course.

What is a Certified Roofing System?

A certified roofing system is one that has been specifically developed to meet current building standards and regulations. GRP or glass reinforced polyester flat roofing from Topseal comes with full BBA certification and between 20- and 40-years materials and workmanship guarantees depending on the product.

British Board of Agrément or BBA is the trusted certification body that audits, tests and inspects products and services such as flat roofing systems. Founded in the 1960s, it works with all aspects of the construction supply chain to ensure that they are safe and fit for purpose.

All our GRP flat roofing systems are fully certified and regularly audited to ensure they are suitable for installation.

Why Choose Topseal

Topseal certified roofing systems are in practically every village, town and city across the UK. As the leading GRP flat roof company, we ensure that installers are properly trained and get marketing support, whether they provide services for homeowners or local businesses.

If you are planning to have a new roof installed, all you need to do is verify that the company or individual is fully accredited with Topseal and have been through our intensive training course.

At Topseal, we offer a range of quality, certified roofing systems to meet a variety of needs from small domestic flat roofs to large, industrial complexes. They can be cold applied and cured within an hour, providing a durable surface that provides 100% protection against the elements.

  • GRP flat roofs are extremely safe to install as they don’t require external heat which can be dangerous.
  • Any size flat roof is suitable for installation and the system can also be cut to the shape of the roof.
  • You should expect a certified roofing system by Topseal to last a lifetime and, because there are no seams, it is unlikely that cracks will develop over time as you find with other systems.

How to Become a Topseal Certified Roofing System Installer

To be able to install a certified roofing system such as Topseal, you must have attended our course and be entered into our verification register. In addition to learning the steps to apply the GRP flat roof system, you will also benefit from marketing advice once you begin to offer this service to local homeowners and businesses. We also provide ongoing technical support through our experienced customer support team.

Our certified roofing system course takes place over a day and equips you with all the skills and knowledge you need to get started. You can find out more here.






    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.

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