Flat Roofs & EPDM
Flat roofs & EPDM rubber roofing
Durable, seam-free EPDM rubber flat roofing for extensions, garages and flat-roofed sections across Clevedon. Replaces failing felt with a covering that actually lasts.
Why we recommend EPDM over felt
Old felt flat roofs are one of the most common sources of leaks we see on extensions across Clevedon — the joints and seams degrade, and once one goes, water can travel a long way under the roof before it shows inside. EPDM rubber is a single membrane with no seams to fail, and it’s what we recommend whenever a felt flat roof needs replacing.
Single-membrane rubber
One continuous sheet with no joints across most domestic flat roofs — nothing for water to find a way through.
20+ year lifespan
EPDM typically outlasts felt by decades when fitted correctly.
Low maintenance
No re-coating or re-felting needed every few years.
Handles movement
Flexible enough to cope with thermal expansion without cracking.
Insulated upstands
Detailing around edges and upstands fitted to prevent cold bridging and leaks.
Suitable for extensions & garages
A common choice for rear extensions, garages and outbuildings across Clevedon.
From strip-out to finished flat roof
Inspection
We check the deck condition and existing felt or covering.
Written quote
A clear price for a full EPDM system, including any insulation upgrade.
Old covering stripped
Felt or failed covering removed back to the deck.
EPDM fitted & guaranteed
Single-membrane rubber bonded and dressed, backed by a written guarantee.
What an EPDM flat roof typically costs
Rough guide only — actual cost depends on access, roof pitch, and what’s actually wrong once we’re up there.
Small flat roof (garage/porch)
£900–£1,800
Extension flat roof
£1,800–£3,500
Larger flat roof
£3,500+
Insulation upgrade (if needed)
Priced separately, quoted on inspection
Flat roof FAQs
- How long does EPDM last?
Typically 20–25+ years when fitted correctly, well beyond felt’s usual 10–15 year lifespan.
- Can you fit EPDM over my existing felt?
Usually not recommended — we strip back to the deck to check for rot and ensure a sound base.
- Is it guaranteed?
Yes, EPDM flat roofs come with a 20-year written guarantee — see our guarantee page.
Want more detail? See our roofing cost guide for typical pricing, our frequently asked questions, examples of our work, or browse the full range of services we offer. Every job is backed by our written guarantee — get in touch for a free, honest assessment.
Flat roof leaking or looking tired?
Get a free assessment and a written EPDM quote.