Flat roofs
Flat roofs in Croydon
Extensions, garages, dormers and bay tops, in EPDM rubber or GRP fibreglass, with the manufacturer’s cover on the material and our workmanship warranty on the install.
Call now
The quickest way to a straight answer about your roof, and if water’s coming in, always start here.
Call 020 4652 1477Text us a photo
Snap the problem from the ground and text it with your postcode. You’ll get a straight answer about what happens next.
Text a photoSounds like your roof?
The things people send us photos of
- Water sitting in pools days after the rain stopped
- Blisters or bubbles in the felt that crunch underfoot
- Cracks along the edges, upstands or around outlets
- A damp patch on the ceiling of the extension or garage
- Moss and grit where the covering’s worn through
- A felt roof on its second or third patch already
Any of those, and it’s worth a photo. You’ll know where you stand before anyone’s up a ladder.
What we actually do
The honest hierarchy: patch, overlay or rebuild
Not every tired flat roof needs replacing. A sound deck with one failed detail can take a proper local repair, the same repair-first approach we take to pitched roof repairs, and we’ll say so when that’s true. What a patch can’t fix is a roof that’s failing as a system, soaked insulation, a deck gone spongy, falls that pond water by design.
When it is replacement time, you choose between the two systems we’d put on our own houses: EPDM: a single sheet of rubber with no joints to fail, quick to lay and easy to live with, or GRP fibreglass, laid wet and cured into one seamless surface, the harder-wearing choice where there’ll be foot traffic.
Either way the job includes the unglamorous parts that decide whether a flat roof lasts: deck condition checked and corrected, falls set so water actually leaves, and the edges, upstands and outlets, where every flat roof really fails, detailed properly.
On the job sheet
- EPDM rubber membranes, one piece where the roof allows
- GRP fibreglass, laid and cured on site
- Deck repairs or full re-boarding where needed
- Falls corrected so water runs to the outlet
- Trims, upstands, drips and outlets detailed properly
- Felt repairs where a felt roof has life left in it
How the quote works
A straight answer, in writing
Photos first if it’s a repair; a proper look if it’s bigger. Either way the scope and the price go to you in writing, itemised, before any work starts, and the person quoting knows the crew doing it.
How we quote, in full →Our work
Straight off the crew’s phones
No staged shoots. This is what the work actually looks like mid-job and finished. More lands here as jobs wrap up.
What drives the price
What actually moves a roofing quote
System choice
EPDM and GRP price differently and suit different roofs. We lay out which fits yours and why, not just the dearer one.
Deck condition
If the boards underneath are soft, they’re coming up. The quote states how deck replacement is priced so there’s no ambush.
Details and junctions
Outlets, rooflights, upstands against walls: the fiddly edges take the time, not the flat middle.
We don’t publish ballpark figures: a number invented without seeing the roof is exactly the doorstep trick this page exists to avoid. What we will do is put a real one in writing: here’s how the quote works.
What’s covered
Straight about what’s covered, before you pay, not after
The most common roofing fallout isn’t bad work. It’s cover people assumed they had. So here it is in a table, up front.
| Work | What it comes with | How long |
|---|---|---|
| New roof / full re-roof | Our written workmanship warranty | 10 years |
| Flat roof in EPDM or GRP | Manufacturer-backed cover on the material, plus our workmanship warranty | Per the material system |
| Repairs | A straight answer instead of paperwork: what we did, what it should hold, and anything we’d keep an eye on | , |
A repair doesn’t come with a written warranty, and we tell you that before we start, not after it rains. If a repair isn’t worth doing, we’d rather say so.
Reviews
What customers say
Straight from our Google profile, quoted word for word. Read them all on Google →
Roofing Croydon did an excellent job with our roof replacement. The team was professional, efficient, and kept us updated throughout the whole process. The work was completed to a very high standard, everything was left clean and tidy…
Posted on Google, 5 out of 5
Fantastic job—finished on time, no mess left behind, and the new roof is of top quality. Highly recommended!
Posted on Google, 5 out of 5
Fantastic work! The team was prompt, professional, and delivered top-quality results. The roof looks great—couldn’t be happier!
Posted on Google, 5 out of 5
Lovely friendly professional workmen. Great communication from these guys! Worked around us, and did it promptly. Thanks for a great service!
Posted on Google, 5 out of 5
Amazing work done. My roof looks very nice Will recommend them to others.🙌
Posted on Google, 5 out of 5
Questions
Straight answers
EPDM or GRP: which should I pick?
EPDM is a single rubber sheet: no seams, fast to fit, easy to repair, happy on garages, extensions and larger roofs. GRP is a rigid fibreglass skin: tougher underfoot, crisper edges, the pick for balconies and roofs you’ll walk on. We’ll tell you which suits your roof when we see it, and the price of each if it’s genuinely either.
What cover comes with a flat roof?
Two layers, both in writing: the manufacturer’s cover on the EPDM or GRP material itself, and our workmanship warranty on the installation. You get the actual terms with the completion paperwork, not a vague promise.
Can you just patch my felt roof?
If the deck under it is sound and the failure is local, then yes, and that’s what we’ll quote. If the roof is holding water in its insulation, a patch is throwing money at a symptom, and we’ll show you why rather than take the easy sale.
Why does my flat roof pond water?
The falls, the slight slope every “flat” roof needs, were either never right or the deck has sagged. Ponding accelerates every other failure, so a proper replacement resets the falls, not just the covering.
Do you do flat-to-pitched conversions?
Where the structure allows it, yes. It’s quoted like any other new-roof job after a roof check, with the options and trade-offs in writing.
Where we do this: Croydon, Coulsdon, Purley, Sanderstead, Selsdon, Thornton Heath, Warlingham, Caterham, Sutton, Wallington, Mitcham, Beckenham, Orpington, Worcester Park, Epsom, Redhill, Horley, all areas →
Flat roof looking tired?
A photo by text or WhatsApp gets you the honest first read, patch, overlay or rebuild. Anything bigger gets a roof check and a written price.