Roofing
Flat roofs
GRP, EPDM and single ply systems on garages, extensions, dormers, porches and balconies, laid to a proper fall on a sound deck.
Flat roof replacement and repairs
Most flat roofs fail because of what is underneath, not the covering itself. That is why we check the deck and the slope first and fix any problems, rather than laying a new membrane over the top. You get a roof that drains properly and stays dry.
Where we fit them
- Garage and outbuilding roofs
- Single storey and rear extensions
- Dormer roofs and dormer cheeks on loft conversions
- Porches and bay window roofs
- Balconies and walk-on areas
Systems we install
- GRP fibreglass: seamless, rigid, good under foot traffic
- EPDM rubber: few joints, tolerant of movement
- Single ply: hot air welded seams for larger areas
- Warm deck build-ups with insulation upgrade
Recent work
Before and after
A lean-to conservatory replaced with a solid room under a new flat roof, finished with a flat roof light.
Flat roof and rear room
Questions
Common questions
Old-style pour-and-roll felt often failed within fifteen years, which is where the reputation came from. Modern GRP, EPDM and single ply systems, laid to a correct fall on a sound deck, last considerably longer and are the reason flat roofs no longer deserve that reputation.
A flat roof is never actually flat: it is laid to a shallow fall so water reaches an outlet. Ponding means the fall is insufficient, the deck has deflected, or the outlet is blocked. Re-covering over the top without correcting the fall repeats the fault.
Both are sound when installed properly. GRP is rigid, seamless and takes foot traffic well, which suits garage roofs and balconies. EPDM is a single rubber membrane with very few joints and copes well with movement, which suits larger areas. The survey and the deck condition decide it, not a preference.
A warm deck puts the insulation above the deck, keeping the structure warm and the vapour control layer on the correct side. It largely removes the condensation problems that plague older cold-deck flat roofs, and it is usually the right specification when a flat roof is being replaced entirely.
Also part of roofing
The rest of our roofing work
Roof repairs
Leaks, slipped tiles and storm damage, traced to the cause.
Emergency roof repair 24/7
Made safe the same day, day or night.
Re-roofing
Full strip and re-cover with a written guarantee.
Leadwork and guttering
Flashings, valleys, gutters and roofline.
Conservatory roofs
Solid roof replacement for year-round use.
Areas we cover
Covering London, Hertfordshire and Bedfordshire
Covering LU, AL, HP, WD, MK and SG postcodes, and North London. See all areas
Request a survey
We look at the job before we price it
Someone comes out, looks at the work properly (getting on the roof where it is safe to do so) and photographs what they find. You get those photographs and a fixed, itemised quotation.
- 01 SurveyWe look at the job properly and photograph what is actually there.
- 02 QuoteA fixed, itemised figure with those photographs attached.
- 03 ScheduleA written start date, and one named contact throughout.
- 04 FinishSwept daily, signed off with you, guaranteed in writing.
Written workmanship guarantee issued on completion, with evidence of insurance on request.