GRP (Glass Reinforced Plastic) roofing is a modern, highly durable solution for flat roofs, extensions, garages, and balconies. At Mitcham Builders Merchants, we stock a comprehensive range of GRP roofing supplies designed to provide long-lasting protection against the elements. Whether you're a roofing contractor or a skilled DIYer, our GRP roof supplies offer everything you need for a reliable and watertight finish.

Known for its strength, flexibility, and seamless application, GRP is resistant to UV, fire, and extreme weather, making it a smart choice for both residential and commercial projects. From base and topcoats to trims, resins, and application tools, our GRP range has been carefully selected for performance and ease of use.

Order your GRP roofing supplies online for fast UK delivery or visit our Croydon branch to speak to our knowledgeable team. We're here to help you choose the right GRP roof supplies for the job, whether you're tackling a new installation or repairing an existing system.