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Read more on Google Flat roofing · West Cornwall
Flat Roofing in Penzance & Across Cornwall
Got a tired felt flat roof that keeps letting water in, or planning a new flat roof for an extension or garage? West Cornwall Roofing & Leadwork fits expert fibreglass (GRP) and EPDM rubber flat roofs across Penzance and the whole of Cornwall: modern, seamless systems built to outlast traditional felt by decades. Hot-works insured, laid properly from the deck up, and backed by a 10-year workmanship guarantee.
NVQ-qualified in roofing & leadwork10-year workmanship guaranteeFully insured (incl. hot works)
Expert Flat Roofing That Lasts
A flat roof is a roof with a very low pitch, sealed with one continuous, seamless waterproof layer rather than overlapping slates or tiles. If you need flat roofing in Cornwall, the choice that matters most is the covering: modern fibreglass (GRP) and EPDM rubber are engineered to last for decades, where the old bitumen felt they replace tends to crack, blister and let water in after a few winters.
Getting it right is a genuine skill. A flat roof does not usually fail in the middle: it fails at the edges, where the covering meets a wall, an upstand or a higher roof, and that detailing is exactly where our expertise lies. Steve is NVQ-qualified in roofing and leadwork, so the vulnerable joints that decide a flat roof's lifespan are dressed properly in lead. The result is a seamless, watertight roof, and the confidence of knowing the most important part is in genuine expert hands.
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The Flat Roof Systems We Fit
There is no single best flat roof: the right system depends on the roof's size, shape, access and how it's used. These are the flat roofs we're trusted with most across West Cornwall:
Fibreglass (GRP) flat roofs
A glass-reinforced plastic system laid in liquid resin and cured into one hard, seamless skin. Tough, walk-on strong, and ideal for smaller roofs, balconies and anywhere with clean, square edges. The finished surface has no joins for water to find.
EPDM rubber flat roofs
A single sheet of synthetic rubber bonded down in one piece. Flexible, lightweight and excellent for larger or awkwardly-shaped roofs where one continuous membrane beats dozens of joints. It copes easily with movement and Cornwall's temperature swings.
Strip-and-replace felt
The most common job: lifting a failed felt roof, checking and renewing the timber deck where needed, then re-covering in GRP or EPDM for a result measured in decades, not years.
Lead flat roofs
Small lead-covered flat roofs, bays and porches, laid to code by a leadwork specialist where lead is the right material for the building.
Flat roof repairs
Where a roof is otherwise sound but has a localised split, blister or failed detail, expertly repaired to make it watertight again.
Lead-detailed upstands & abutments
The edges where a flat roof meets a wall or higher roof, dressed properly in lead: the most common place a flat roof leaks, and the part our leadwork specialism makes the difference on.
Recent Flat Roof Work
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What Our Customers Say
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Read more on GoogleWhy a Proper Flat Roof Pays Off
The leaks stop for good.A seamless GRP or EPDM covering has no felt laps to split, so water has nowhere to get in: your extension, garage or dormer stays dry.
It lasts decades, not a handful of winters.Fitted well, a GRP or EPDM roof keeps doing its job for 20 to 30 years and beyond, where old felt was often failing within ten.
The edges are detailed by a specialist.Because the upstands and abutments are dressed in lead by an NVQ-qualified leadwork roofer, the part that usually decides a flat roof's lifespan is in genuine expert hands.
Complete peace of mind.Your roof fitted by a qualified, hot-works-insured specialist and backed by a 10-year workmanship guarantee, so when the weather rolls in off the Atlantic, you know it's ready.
How We Fit a Flat Roof
01
Get in touch
Call Steve or send a message about the roof: a leak, a tired felt roof, or a new extension that needs covering.
02
Free inspection & expert advice
Steve examines the deck and detailing, then recommends GRP, EPDM or lead based on what genuinely suits the roof.
03
Clear written quote
An exact, no-obligation quote that spells out the system, the prep and exactly what is included.
04
Strip, prep & lay
Old covering off, the deck checked and made sound, then the new GRP or EPDM laid with the upstands and edges expertly detailed in lead, all hot-works insured.
05
Watertight, guaranteed, tidy
The roof tested, the site cleared, and the work backed by our 10-year workmanship guarantee.
Why choose us
Why Choose Us for Flat Roofing
A flat roof lives or dies on its detailing: the upstands, the abutments and the joint where it meets a wall or a higher roof. That's exactly where our expertise sets the work apart: Steve is NVQ-qualified specifically in leadwork, so those joints are dressed in lead to last rather than smeared with mastic. All flat-roof work follows BS 6229, the British Standard code of practice for flat roofs, which sets out how falls, upstands and detailing must be specified so water runs off cleanly and the roof lasts, exactly the standard an exposed Cornish roof needs.
You're also in fully insured hands, public liability, employers' liability and hot-works cover on every job, with over 10 years' hands-on experience across domestic and commercial flat roofs and a 10-year workmanship guarantee on the work. Expert systems, expert detailing, and the confidence that it's built to last.
- Expert training & NVQ qualifications
- NVQ-qualified specifically in leadwork
- Fully insured incl. hot works
- 10-year workmanship guarantee
- Free inspection & clear written quote
Meet the roofer
About the Roofer, Steve Biggs
Flat roofing is carried out by Steve Biggs, owner of West Cornwall Roofing & Leadwork. Steve has over 10 years' roofing experience across Penzance and West Cornwall, and is NVQ-qualified in roofing and leadwork, holds a flat-roofing certificate and a CSCS card, and is certified in working at height and asbestos awareness. He's also hot-works insured, important on any flat roof involving heat or torch-on work.
“A flat roof you fit and forget is all about the edges: get the lead detailing right where the covering meets a wall, lay a proper GRP or EPDM skin over a sound deck, and you've got a roof that's still watertight in twenty-odd years. That's the part I take real pride in.”Steve Biggs, owner and lead roofer
Flat Roofing Across West Cornwall
We fit and repair expert flat roofs throughout West Cornwall, across the towns and villages we know inside out:
How Our Flat Roof Quotes Work
Every flat roof is different, so an accurate price starts with a proper look. What shapes a flat roof quote is the size and shape of the roof, whether it is a repair or a full strip-and-replace, the condition of the deck underneath, which system suits it best (GRP, EPDM or lead), how accessible it is for safe working, and the amount of lead detailing the edges need.
What you can always count on: a free inspection, a clear written quote that spells out the system and what's included, and an expert recommendation on whether a repair or a full re-cover is the right investment, so you know exactly what's being done, why, and what it costs before any work starts.
Frequently asked questions
How long does a flat roof last?+
A quality fibreglass (GRP) or EPDM rubber flat roof typically lasts 20 to 30 years and beyond, far longer than the bitumen felt it replaces, which often started failing within ten. The key is a sound deck underneath and the edges and upstands detailed properly in lead.
Fibreglass (GRP) or EPDM rubber, which is right for my roof?+
Both are excellent; it comes down to the roof. GRP gives a hard, seamless, walk-on finish and suits smaller, square roofs and balconies. EPDM is flexible and lightweight, which makes it ideal for larger or awkwardly-shaped roofs. Steve recommends the right one for your property at the free inspection.
Can you replace my old felt flat roof?+
Yes, it's the most common job we do. Steve strips the failed felt, checks and renews the deck where needed, and re-covers in GRP or EPDM for a result measured in decades rather than a few winters.
Can a flat roof be repaired instead of replaced?+
Often, yes, where the damage is localised, like a split, a blister or a failed detail on an otherwise sound roof. Steve gives you an honest assessment of whether a repair or a full re-cover is genuinely the better value, and explains exactly why.
Can you walk on a fibreglass flat roof?+
A GRP flat roof gives a hard, walk-on surface that is fine for occasional access and maintenance. If the roof will be used regularly, a balcony or terrace, say, tell Steve at the quote stage so it is specified and finished for that from the start.
Do you fit flat roofs on garages and extensions?+
Yes, garages, extensions, dormers, porches, bay windows and outbuildings are everyday flat roofing jobs. Whether it is a new build or replacing a failed felt roof, Steve fits the right GRP, EPDM or lead system to suit the structure.
Is the work guaranteed?+
Yes, every flat roof we fit is backed by a 10-year workmanship guarantee, and Steve is fully insured including hot-works cover for any torch or heat work. So the roof, and the work behind it, is properly protected.
Related Services
01Commercial Roofing
GRP, EPDM and flat-roof systems for shops, units and industrial buildings.
CommercialIndustrial
02Leadwork
The lead upstands, abutments and detailing that keep a flat roof watertight, by an NVQ-qualified specialist.
Lead FlashingValleys & Chimneys
03Roof Repairs
Leaks, splits and storm damage on flat and pitched roofs alike, diagnosed at the source.
Leak RepairsStorm Damage
Get Your Flat Roof Sorted
Stop nursing a failing felt roof. Get expert advice and a clear written quote for a long-lasting GRP or EPDM flat roof from a qualified, hot-works-insured roofer, with every roof backed by our 10-year workmanship guarantee.
Call Steve on 07769 322677·Get a free quote online
West Cornwall Roofing & Leadwork
Penzance, West Cornwall, TR18 3PU
Phone: 07769 322677
Email: steve.westcornwallroofing@gmail.com
Hours: Mon to Fri 7:30am to 4:30pm, Sat 7:30am to 1pm
Last updated: 11 June 2026