Flat Roof Repairs and Replacement in Swansea

Flat roof repair and installation across West Glamorgan. EPDM, GRP and felt systems. Free quotes.

Call 07476 888638 for a free, no-obligation quote. Available Mon–Sun, 9am–6pm.

Flat Roofing

Flat roofs require specialist knowledge and materials to stay watertight and durable. Johnson's Roofing offers flat roof repairs, replacements and new installations using modern, long-lasting materials including EPDM rubber, GRP fibreglass and high-performance felt systems.

What the work covers

  • Flat roof repairs and patching
  • Complete flat roof replacement
  • EPDM rubber roofing
  • GRP fibreglass roofing
  • High-performance felt systems
  • Flat roof insulation upgrades
  • Drainage and gutter integration
  • Flat-to-pitch roof conversions
  • Garage and extension flat roofs
  • Dormer flat roof repairs

How we work

We inspect the flat roof to assess its condition and recommend the best material for your needs and budget. Our installations are carried out with precision, ensuring proper falls for drainage and a completely weatherproof finish. All flat roof work comes with a guarantee.

Common questions

What is the best flat roof material?

EPDM rubber and GRP fibreglass are the most durable and long-lasting modern flat roof materials. We'll recommend the best option based on your roof size, budget and use.

How long do flat roofs last?

A properly installed EPDM or GRP flat roof can last 25–50 years. Traditional felt roofs typically last 10–15 years.

Can you insulate my flat roof?

Yes, we can add insulation during a flat roof replacement to improve energy efficiency and meet building regulations.

Do flat roofs leak?

A well-installed flat roof should not leak. Problems usually arise from poor installation, age or damage. We fix the root cause, not just the symptoms.