GRP fibreglass and EPDM rubber flat roofing for extensions, garages and bungalows. Installed with proper drainage falls and edge detailing. Covering Yarm, Eaglescliffe, Kirklevington, Ingleby Barwick and the surrounding area.
GRP fibreglass and EPDM rubber flat roofing for extensions, garages and bungalows. Installed with proper drainage falls and edge detailing. Flat roofing from £800. Free surveys, 25-year system guarantees.
Seamless one-piece system over 18mm WBP ply deck. 25-year lifespan, no joints to fail.
Single-ply rubber membrane for larger areas. 30–50 year lifespan, superior thermal flexibility.
Full strip of existing felt, new ply deck where required, new membrane system.
18mm WBP plywood deck with correctly graded falls to prevent water ponding.
Correct outlet positioning and sizing — undersized drainage is the leading cause of early flat roof failure.
Rigid insulation board below the membrane where thermal performance needs improving.
Yarm's housing stock is predominantly Georgian townhouses on the High Street and adjacent streets with clay plain tile and Welsh slate; Victorian semis on the residential fringe; modern detached on the outskirts toward Eaglescliffe. Knowing the specific roof types and their failure patterns is what separates a knowledgeable local roofer from a national firm that sends whoever's nearest.
River Tees on three sides creates higher humidity than inland towns, accelerating moss growth and mortar decay. Conservation area status applies to much of the town centre, restricting material choices on period properties. This directly affects how quickly specific problems develop and which repair approaches last longest in local conditions.
Lead flashing failure on Georgian and Victorian town centre properties; moss accumulation from river humidity on north-facing slopes; clay plain tile slippage on older properties; conservation area material constraints. We attend these jobs regularly across Yarm and carry the most common materials on the vehicle.
Flat roofing from £800. Free surveys, 25-year system guarantees. No call-out fee.
“Georgian terrace on West Street — lead valley and chimney flashing replaced correctly. Conservation requirements met without any issues.”
“Moss removal and soft-wash treatment on our Victorian semi near the river. The difference is remarkable — and no tile damage.”
“Full re-roof on our riverside property. Matching clay tile sourced and laid properly. Job finished on time and exactly as quoted.”
Realistic 2025 prices for Yarm properties. All quotes are free, written and itemised before work begins.
| Job Type | Typical Cost |
|---|---|
| GRP fibreglass (per m²) | £70–£100/m² |
| EPDM rubber (per m²) | £65–£90/m² |
| Typical extension (20–30m²) GRP | £1,800–£3,200 |
| Typical extension (20–30m²) EPDM | £1,500–£2,800 |
| Bungalow flat roof (50–80m²) | £3,500–£6,000 |
| New ply deck (if required) | £18–£25/m² extra |
All prices are installed costs. Call 01325 000 000 for a free written quote.
The primary cause of premature flat roof failure in Yarm is inadequate drainage. River tees on three sides creates higher humidity than inland towns, accelerating moss growth and mortar decay — conservation area status applies to much of the town centre. A flat roof that ponded water in summer can become a freeze-thaw problem in winter as standing water expands and contracts around the membrane edge. Every flat roof we install in Yarm is built with a minimum fall of 1:80 to the outlet, and we verify the outlet capacity is adequate for the roof area and the local rainfall load.
Before installing a new flat roof membrane on any property in Yarm, we inspect the existing ply deck condition. Decks that have been under a failing membrane for years may have absorbed moisture and become structurally compromised. A new membrane installed over a soft or delaminating deck will fail early regardless of membrane quality. We include deck inspection in every survey and price deck replacement separately where required — never fold it into the membrane cost and hope it holds.
Yarm's climate — river tees on three sides creates higher humidity than inland towns, accelerating moss growth and mortar decay — conservation area status applies to much of the town centre — makes the choice of flat roof system particularly important. Traditional felt systems have multiple lap joints that fail in wet, frost-prone conditions. GRP is a seamless single-layer system with no joints to fail. EPDM is a single-ply rubber membrane that remains flexible at extreme cold. Both systems significantly outperform felt in the conditions typical of Yarm and the broader County Durham / North Yorkshire climate.
GRP is a rigid seamless system ideal for most extensions up to around 40m². EPDM is a flexible rubber membrane better for larger areas or complex geometry. Both significantly outperform any felt system.
If the roof is under 15 years old and one area has failed, a targeted repair is often viable. Original felt from the 1970s or 1980s has degraded across the whole surface — patching one area is a false economy.
Yes. GRP: 25-year manufacturer guarantee plus our 10-year workmanship guarantee. EPDM: 20-year material guarantee. Both in writing.
Yes. We're registered with the National Federation of Roofing Contractors, meeting recognised industry standards for quality and safety. All work comes with a written 10-year workmanship guarantee.
Yes. All quotes are free, no-obligation and provided in writing. We get on the roof to measure and inspect before quoting — no estimates from the street, no call-out charge for the survey visit.
We cover Darlington and approximately a 20-mile radius including Stockton-on-Tees, Middlesbrough, Newton Aycliffe, Bishop Auckland, Northallerton, Yarm, Eaglescliffe, Barnard Castle, Richmond and all surrounding villages.
Yes. We carry £5m public liability insurance on all work and are happy to provide evidence of cover before starting any job.
No call-out fee. 14 miles from Darlington — typically 20–25 minutes.
01325 000 000