Flat roof replacement across Cambridge
Dense streets in Cambridge mean shared valleys, party walls and restricted scaffold positions. If you are looking at flat roofing & epdm in Cambridge, the practical questions are usually the same: what is actually failing, how much of the roof it affects, and whether it can be repaired or needs replacing. We answer those on site, free of charge.
- County
- Cambridgeshire
- Postcode
- CB1, CB2, CB3
- Access
- M11
- From Ely
- ~16 miles



Specification and scope in Cambridge
EPDM rubber, GRP fibreglass and felt flat roofs for extensions, garages, dormers and outbuildings, with proper falls, trims and outlets.
- EPDM rubber roofs
- GRP fibreglass roofs
- Torch-on felt systems
- Extensions, garages and dormers
Why Cambridgeshire roofs fail
Victorian terraces, college-era period roofs and commercial premises.
Failed upstands and trims
Most flat-roof leaks start at the edges — upstands, drip trims and the junction with the main wall — not in the middle of the roof.
Split and blistered felt
Old bitumen felt splits at movement joints and blisters where trapped moisture expands. Overlaying rarely fixes either.
Restricted access and scaffold
Narrow frontages and parking pressure across CB1 mean scaffold design and permits are planned in advance, not on the morning.
Domestic and commercial in one visit
We quote homes and small commercial premises on the same terms — inspection first, written specification second.
Materials and systems we use
- GRP fibreglass
- Laid in situ over a ply deck for balconies and anything walked on, finished with a hard topcoat.
- EPDM rubber membrane
- One-piece rubber for extensions, dormers and garages — no field seams, and it copes well with movement.
- Trims, upstands and outlets
- Edge trims, correctly formed upstands and adequate outlets — where nearly all flat roof failures actually begin.
- Falls and firrings
- Firring pieces set the fall so water leaves the roof rather than sitting on it.
Where else we work from Cambridge
The CB1, CB2 and CB3 postcode districts plus Ely, Newmarket, St Ives and Royston are all inside our normal Cambridgeshire working area. Flat Roofing & EPDM enquiries here are handled the same way. Postcodes covered locally: CB1, CB2, CB3, CB4, CB5.
Frequently working in and around Cambridge Science Park, Cambridge Business Park.
Standards, insurance and guarantees
Domestic and commercial
From a single slipped tile to Cambridge Science Park, quoted on the same basis.
Independent, Costessey based
We're an independent firm at 41 The Street, Costessey, working out to Cambridge ourselves rather than passing you to a national call centre.
No overlaying failed decks
If the boards are wet, we replace them. Laying new membrane over a soft deck is the cheap answer that fails twice.
Leak now? Call 07437 005301
We advertise a 24/7 emergency call-out across Cambridgeshire for active leaks and storm damage.
Questions we get asked in Cambridge
- Can you overlay the existing felt?
- Only if the deck below is dry and sound, and we'll lift a section to check. Overlaying a soft deck buys a year or two and costs the whole job again.
- How long should a new flat roof last?
- A well-installed EPDM or GRP roof on a sound, correctly falling deck should give decades of service. What kills flat roofs early is ponding water, poor upstands and being laid over a wet deck — all avoidable.
- Why does water sit on our flat roof after rain?
- Insufficient fall, a sagging deck or a blocked outlet. On Cambridge extensions it's usually falls that were never set properly. We reset falls with firrings rather than lay new membrane over the same puddle.
- Do you actually cover Cambridge, or just the Norwich area?
- We cover it. We're based at Costessey, Norwich and Cambridge is about 16 miles from Ely, reached on the M11. It's a normal working area for us, not an outlier.
- Our roof is Victorian terraces — is that a problem?
- No, it's typical for the area. Victorian terraces is one of the most common types we work on locally, and we'll match materials where any of the existing covering is being retained.
Where to go from here
EPDM for most extensions and garages, GRP where the surface gets walked on, felt where the roof is large or awkward — set out with the trade-offs at the free inspection. Neighbours in Ely and Newmarket get the same service, and the written quote is yours to keep and compare.
Leak now? Call 07437 005301
We advertise a 24/7 emergency call-out across Cambridgeshire for active leaks and storm damage.
