Flat Roofing Specialists in Cornwall

Flat Roofs Cornwall | GRP, EPDM & Felt Roofing Specialists | Cornish Roofing
Request a Free Consultation

Call us today on 01208 816991

Learn more
CALL NOW
A house with a metal roof section and a traditional shingle roof, a small outdoor patio with chairs and a table, a lawn area, and a rural landscape background. 
No matter where you are in Cornwall, we can help.
Diagram of insulated assembly layers including rubber bond membrane, adhesive, PIR insulation, vapor control layer, concrete or OSB, and steel deck.
Modern glass extension with sliding doors on the backyard of a brick house, featuring skylights on the roof and outdoor patio with garden plants.

Durable, Long-Lasting Flat Roof Solutions for Cornish Homes & Properties

Flat roofs require expert installation — especially in Cornwall’s harsh coastal climate. At Cornish Roofing, we provide high-performance flat roofing systems designed to withstand heavy rain, salt air, strong winds and year-round weather exposure.

Whether you need a brand-new flat roof, a replacement, or a repair on an existing system, our qualified team offers long-lasting solutions for homes, extensions, garages, dormers, balconies, commercial buildings and holiday lets across Cornwall.

We specialise in GRP fibreglass, EPDM rubber roofing and modern torch-on felt systems, ensuring each flat roof is watertight, durable and professionally installed.

Flat roof with a newly applied waterproof coating on the surface.
Newly installed flat roofing with three skylights and a brick house in the background.

Flat Roofing Systems We Install

GRP (Glass Reinforced Plastic) is one of the longest-lasting flat roofing options and is extremely popular across Cornwall.

Benefits of GRP

  • Fully waterproof seamless finish

  • Extremely durable (20–30+ year lifespan)

  • Perfect for coastal homes

  • UV-resistant and weatherproof

  • Low maintenance

  • Clean, modern appearance

  • Ideal for extensions, garages & balconies

We install high-grade resin, fibreglass laminate and a premium top coat for a superior finish.

Close-up of a building corner with flashing, wooden frame, and a metal surface, possibly a roof or gutter
A person working on a roof, installing or repairing a vent or skylight, with tools such as screwdrivers and a hammer nearby. The rooftop is wet, and houses and trees are visible in the background under an overcast sky.
A worker installing or repairing a roll of roofing material on a flat roof.

Flat Roof Repairs in Cornwall

We repair all types of flat roofs including GRP, EPDM and felt.

Common Flat Roof Problems We Fix

  • Leaks & water ingress

  • Ponding (standing water)

  • Cracked or split membranes

  • Loose edges or trims

  • Damaged flashing

  • Punctures or worn areas

  • UV damage

  • Poor previous installation

We provide long-lasting repair solutions, not quick patches.