Telephone: 01903 814865 | Mobile: 07766 902323

Flat Roof in Worthing and West Sussex | Our Services

Southdown GRP covers West Sussex as a professional flat roofer, consistently producing high quality GRP roofing installations for domestic and commercial customers. With close to two decades of experience as a roofing contractor, we provide clients in Worthing, Shoreham and the surrounding areas with durable flat roof installation and repair services at a competitive price. GRP roofing comes with a reassuring guarantee from our fully insured company.


Unlike other roofing contractors, who claim to be experts in GRP roofing, we ensure every flat roofer at Southdown GRP has the understanding and the knowledge needed to fit low-maintenance GRP materials that last for many years. A fibreglass flat roof installation even adds value to homes and workplaces in the Worthing, Shoreham and West Sussex areas.


There are many advantages to choosing GRP roofing over traditional flat roof materials, such as felt and bitumen. GRP is tough, hardwearing, comes with a 15-year guarantee, repairs easily if damaged and can be extended or refurbished. A flat roof, by its very nature, is more economical than a pitched roof. GRP fibreglass roofing makes it even more cost-effective.


This is why we have no hesitation in recommending GRP fibreglass, or reinforcing our credentials as a flat roofer in Worthing, Shoreham and the surrounding areas by making GRP roofing our product of choice – on each and every flat roof installation we work on. Please visit our gallery to view previous installations and repairs undertaken in West Sussex.

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Protective, Flexible and Stylish Roofing Materials


We use fire-retardant resins and roofing topcoats approved by Lloyds. Each flat roof, and each customer, differs slightly but every flat roofer on our team is flexible enough to work to any specification you require. We tend to paint GRP roofing in grey because the colour is solar-reflective, but we can match any shade or colour based on your property design theme.


Southdown GRP also installs GRP fibreglass to cover roof terraces and walkways. We use non-slip additives in our topcoats to avoid the potential for slipping accidents. Our flat roof experts also use GRP fibreglass for guttering, gulleys, garden ponds and swimming pools in Worthing, Shoreham and the surrounding areas – because we’re much more than just a roofing company!


GRP roofing and surface installations include:


  • Flat Roofs
  • Sheds and Garages
  • Porches
  • Dormer Roofs
  • Box and Valley Gutters
  • Roofing Gulleys
  • Home Extensions
  • Parapet Walls
  • Garden Outbuildings
  • Swimming Pools
  • Garden Ponds
  • Water Features


Call 01903 814865 to arrange a free, no-obligation quote or to discuss our GRP roofing services in Worthing, Shoreham and the surrounding West Sussex area.