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Expert GRP Roofing in Oxted
Established over 18 years ago, Smartseal Flat Roofing has built a reputation for excellence in fibreglass waterproofing systems. Our expertise spans residential and commercial applications, including flat roofs, balconies, green roofs, wet-rooms, ponds, and pools. With a commitment to innovation, we offer advanced GRP systems like Cure It Evo, Bonda, Res-Tec, and Topseal, each engineered for durability and performance. Our team combines technical proficiency with meticulous craftsmanship, ensuring solutions tailored to diverse architectural challenges. Backed by a 25-year materials guarantee and comprehensive insurance, we prioritise client satisfaction through transparent pricing, free temporary coverings during installations, and responsive service.

Customer testimonials highlight our reliability, professionalism, and ability to resolve complex roofing issues efficiently. From initial consultation to project completion, we maintain open communication, delivering seamless, weather-resistant, and aesthetically adaptable systems. Our dedication to quality and continuous improvement solidifies our position as a trusted leader in the waterproofing industry.
Services
GRP Roofing Waterproofing Systems Roof Repairs Green Roofs Pond Waterproofing
Highlights and features
  • We offer 18 years of specialist GRP waterproofing experience.
  • Our systems include a 25-year materials guarantee.
  • Free temporary covering during all installation projects.
  • Fully insured with transparent, no-obligation quotations.
  • Proven track record resolving complex roofing challenges efficiently.
What people say
Excellent service Professional from start to finish Highly recommend Brilliant job 15 year guarantee
Services
GRP Roofing
Our GRP roofing systems provide robust, seamless waterproofing solutions for residential and commercial properties. Utilising Glass Reinforced Plastic, these installations resist leaks, UV damage, and extreme weather. Ideal for new builds or refurbishments, they offer a 25-year guarantee with minimal maintenance requirements.
Waterproofing Systems
Specialist waterproofing applications for balconies, green roofs, and wet-rooms using advanced GRP technology. Systems form a continuous protective barrier, preventing water ingress while accommodating structural movement. Suitable for both domestic and industrial environments.
Roof Repairs
Urgent roof repair services addressing leaks and storm damage. Our rapid-response team employs GRP and polyurethane solutions to restore integrity swiftly. Includes temporary protection during inclement weather and long-term refurbishment options.
Green Roofs
Sustainable green roof installations featuring Topseal's 25-year guaranteed system. Combines vegetation layers with GRP waterproofing for thermal efficiency and biodiversity. Ideal for urban environments seeking environmental benefits without compromising durability.
Pond Waterproofing
Permanent waterproofing solutions for ponds and water features using Bonda GRP systems. Creates seamless, non-toxic barriers that prevent leaks while maintaining aesthetic appeal. Lifetime durability with minimal ongoing maintenance requirements.
People
Darren John
Owner/President
With over a decade of roofing industry experience, Darren leads Smartseal's operations, overseeing technical standards and client relations. His expertise in GRP systems ensures quality installations across residential and commercial projects.
Questions
What GRP systems do you offer?
We provide Cure It Evo, Bonda, Res-Tec, Topseal, and RoofCell systems, each tailored for specific applications including roofs, ponds, and industrial environments.
Do your services include guarantees?
All installations come with a 25-year materials guarantee, covering waterproofing performance under normal conditions.
Which areas do you cover?
We operate across Surrey, Kent, London, and surrounding regions, including Banstead, Reigate, Guildford, and Oxted.
Can you handle emergency repairs?
Yes, we offer urgent response for storm damage and leaks, with temporary protection and permanent solutions available.
How do I request a quote?
Contact us via phone or email for a free, no-obligation assessment of your roofing requirements.
Are your installers insured?
All projects are fully insured, with public liability and product warranties included as standard.