EPDM rubber roofs
Single-sheet EPDM membrane with no joints across the main roof, bonded to a new deck.
NFRC member roofers · Peterborough
Flat roof installation and repair in Peterborough
EPDM rubber flat roofs for garages, extensions, dormers and commercial units. One seamless sheet, laid to proper falls, that can last decades longer than felt.
What we do
Flat roofs that shed water and last
Domestic and commercial flat roofs across Peterborough and up to 40 miles around.
New decks & insulation
Rotten decking replaced with new boards, plus insulation upgrades where Building Regulations require them.
Falls & drainage
Roofs laid to proper falls with firring or tapered insulation, so rainwater drains instead of ponding.
Trims, edges & outlets
Drip trims, upstands and outlets detailed properly, where most flat roof leaks start.
Felt roof replacement
Old felt and asphalt roofs stripped and replaced with EPDM.
Commercial flat roofs
Units, offices and managed property, planned around your opening hours.
Know the signs
Signs your flat roof needs attention
Flat roofs give plenty of warning. Act on it early.
Book a free roof check- Puddles that remain 48 hours after rain
- Blistering, cracking or splitting felt
- Soft or spongy areas when walked on
- Damp patches on the ceiling below
- Lifted edges or trims
- Moss or vegetation growing in the covering
Expert guide
Why flat roofs fail, and how we build them to last
Most flat roof problems come from three things: water lying on the roof, poor detailing at the edges and outlets, and materials past their life. Traditional felt roofs often last only 10–20 years. A correctly installed EPDM rubber roof can last 30–50 years.
Falls matter more than anything
The British Standard for flat roofs, BS 6229:2018, says roofs should be designed with a 1:40 fall so that a minimum of 1:80 is achieved on the finished roof. A “flat” roof that holds puddles after rain will fail early. We check the deck and correct the falls before laying the membrane.
Insulation and Building Regulations
Replacing a flat roof is often more than a new covering. When a roof is both re-decked and re-covered, building control guidance says the insulation must be upgraded to current standards, under Part L of the Building Regulations. We include this in our price where it applies, so there are no surprises.
Why EPDM?
- One seamless sheet across most roofs, so there are fewer joints to fail
- Flexible in hot and cold weather, and resistant to UV
- No naked flames used in installation, so it is safer for occupied homes
- Low maintenance and easy to repair if damaged
How it works
From first call to signed-off roof
Survey
We check the deck, falls, edges and outlets, and measure the roof.
Fixed price
A written quote covering the deck, insulation, membrane and trims.
Install
Old roof stripped, deck and falls corrected, and EPDM bonded and detailed.
Handover
Water-tested where possible, photographed and guaranteed in writing.
Guide prices
How much does it cost?
Typical prices for EPDM flat roofs, including deck repairs and waste. Every roof is different, so we always give a fixed, written price after a free roof check.
Get your fixed priceUp to 25% lessthan typical prices elsewhere (illustrative comparison*)
| Job | Upsize guide price | Typical elsewhere* |
|---|---|---|
| EPDM rubber flat roof (per m²) | £90 – £140 | £100 – £200 |
| Garage or small extension roof | £1,400 – £2,900 | £1,750 – £3,600 |
| Single-storey extension (15–25 m²) | £2,100 – £4,000 | £2,600 – £5,000 |
| Dormer roof | £1,050 – £2,300 | £1,300 – £2,900 |
| Flat roof repair | £230 – £700 | £300 – £900 |
*Illustrative figures only. “Typical elsewhere” shows prices around 25% higher than our guide prices, to illustrate how we compare. Guide prices include VAT and are not a quote.
Our work
Photos from recent jobs
Real photos from our own roofing jobs around Peterborough. No stock images.
Standards & sources
What the regulations and research say
We work to current British Standards, HSE guidance and Building Regulations. Here are the sources behind the advice on this page.
- BauderChanges to BS 6229:2018 (flat roofs)
Flat roofs should be designed with a 1:40 fall so that a minimum 1:80 fall is achieved on the finished roof, clearing rainwater rather than letting it pond.
- Horsham District Council Building ControlGuidance for re-roofing projects
Building control guidance: insulation must be upgraded when a roof is both re-decked and re-covered.
- GOV.UKApproved Document L: conservation of fuel and power
When a large part of a roof is renovated, Part L normally requires the insulation to be upgraded where this is technically and economically feasible.
- HSERoof work – Health and Safety Executive
Almost one in five deaths in construction work involve roof work. HSE advises treating every roof as fragile until a competent person confirms otherwise.
FAQs
Flat roofing: your questions answered
Can't see your question? Call 0800 193 9030 or send us a message.
How much does a flat roof cost in Peterborough?
EPDM rubber roofing typically costs £90–£140 per m² fitted. A garage or small extension roof is usually £1,400–£2,900, and a larger single-storey extension £2,100–£4,000, depending on the deck, insulation and edges.
How long does an EPDM flat roof last?
A correctly installed EPDM roof can last 30–50 years, much longer than traditional felt, which often lasts 10–20 years.
Is EPDM better than felt?
For most domestic roofs, yes. EPDM is a single seamless sheet, stays flexible in all weathers, resists UV and is installed without naked flames. Felt is cheaper upfront but usually needs replacing much sooner.
Why does water pond on my flat roof?
Usually because the roof has too little fall or the deck has sagged. BS 6229 recommends designing for a 1:40 fall so that at least 1:80 is achieved. We correct the falls when replacing the roof.
Do I need building regulations approval to replace a flat roof?
Often, yes, if you are replacing the deck as well as the covering, because the insulation then needs upgrading under Part L. A like-for-like re-cover of a small area may not need approval. We tell you what applies.
Can a flat roof be installed in winter?
Yes, in dry conditions. EPDM adhesives need dry surfaces and suitable temperatures, so we plan around the weather and protect the roof between stages.
Can you repair my flat roof instead of replacing it?
If the damage is local and the deck is sound, yes. If the felt is blistered and cracked across the roof, or the deck is soft, replacement is better value.
Areas we cover
Flat roofing in Peterborough and up to 40 miles around
Based in Peterborough (PE1), we work across Cambridgeshire, South Lincolnshire, Rutland and Northamptonshire, Monday to Saturday.
Peterborough
Our home patch, where we can usually attend fastest.
- PE1City Centre, Dogsthorpe, Eastfield, Fengate, Newark, Parnwell
- PE2Fletton, The Ortons, Stanground, Woodston, Alwalton
- PE3Bretton, Longthorpe, Netherton, Ravensthorpe, Westwood
- PE4Werrington, Gunthorpe, Paston, Walton
Villages and market towns around Peterborough
Regular work across the surrounding villages and towns.
- PE5Castor, Ailsworth, Sutton
- PE6Market Deeping, The Deepings, Eye, Glinton, Crowland, Baston
- PE8Oundle, Wansford, Kings Cliffe, Nassington, Fotheringhay
- PE10Bourne, Thurlby, Morton, Grimsthorpe
- PE15March, Doddington, Wimblington
- PE16Chatteris
Towns across the region
Up to 40 miles from Peterborough.
- PE9Stamford, Barnack, Ryhall, Ketton
- PE11 & PE12Spalding, Pinchbeck, Holbeach, Long Sutton, Deeping St Nicholas
- PE13 & PE14Wisbech, Guyhirn, Murrow, Upwell, Outwell
- PE29Huntingdon, Godmanchester
- NN17Corby, Weldon, Deenethorpe
Contact
Request a free quote
Send your scope or tell us about your roof. We reply within one working day.
- 0800 193 9030
- Message us on WhatsApp
- alex@upsizeproperty.com
- Mon–Fri 7:30–19:00 · Sat 8:00–16:00
- Peterborough · South Lincolnshire · East Midlands
Find us on Google
Peterborough-based, working 40 miles around
Upsize Property Renovation Ltd Headquarters: Peterborough, Cambridgeshire
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