Greater London · London and the South East
Flat Roof Survey in Dulwich
Surveys of flat roofs on homes, extensions and commercial buildings across Dulwich, with drones and thermal imaging where they help. Get in touch for a price.
- Standing water left after rain
- Damaged trims at the roof edge
- Gaps at upstands and abutments
Flat roof survey in Dulwich: what you get
A flat roof leak frequently travels before it shows on the ceiling. It may start at a split, a lifted seam or a failed upstand well away from the damp patch. That is why we check every detail across the roof, not only the area above the stain, with photographs of anything that could be letting water in. A roofer can then start from a clear picture of the problem. We survey mastic asphalt, felt flat roofs and upstands and outlets, and people most frequently book us about ponding water that doesn’t drain away and cracked or split membrane.
London has a lot of flat roofs: rear additions, dormers, roof terraces and the roofs of blocks and offices. Coverings range from felt and asphalt to EPDM rubber, GRP fibreglass and single-ply membranes, and each fails in its own way. In Dulwich, as anywhere in London, the right approach depends on what the roof is made of. Older flat roofs are often felt or asphalt, newer ones rubber or GRP.
We keep jargon out of it: if work is needed, the report says so clearly.
- Location
- Dulwich (SE22, SE21, SE23)
- Region
- Greater London
- Price
- From £150 inc. VAT
- Report
- A written report with photos, by email
- Appointments
- Monday to Sunday, daytime
- Insurance
- Professional indemnity and public liability
- Telephone
- 07833 053749
- Last updated
- 27 October 2026
Should I look at the roof myself first?
You can learn a lot from the ground. With binoculars, look for slipped or missing slates and tiles, gaps along the ridge and leaning chimneys. Please don’t climb up for a closer look.
It’s useful to keep a record: when leaks happen, ground-level photos and any past roof work. Send it with your enquiry and it will help the survey.
Common roof problems in Dulwich
Every flat roof covering has a working life. Felt roofs frequently last around 15 to 20 years, EPDM often 30 to 50 years and GRP up to about 30, although how well it was laid and looked after matters a great deal. We can tell you how your roof is doing, whatever its age.
We are often asked to look at:
- Blocked or damaged outlets
- Water getting in at rooflights
- Ponding water that doesn’t drain away
- Blistering in felt or asphalt
The streets around a church such as Christ's Chapel of God's Gift are often among the oldest in a place, and if you own one of the older houses nearby, later flat-roofed additions are common on older houses, and their edges and upstands often show the first signs of wear.
Before booking any roof surveyor
- What the report includes, and whether it has photographs
- How soon the report will arrive
- If they fly a drone, whether they hold a CAA Flyer ID and Operator ID
- What they won’t be able to tell you
What we do, step by step
Every visit follows the same pattern: we hear what you’ve seen, inspect the roof from every safe vantage point, take photographs as we go and record our findings for the written report. Most visits take about 1–2 hours for an extension, garage or dormer roof, and around 3–4 hours for a commercial flat roof. For a visit in Dulwich, parking and access are the things to plan: tell us about permits, visitor bays or off-street space, which floor the property is on and how to get into the loft. We then look at everything that’s safely in view from the ground, windows, the loft and, where it is safe, the roof itself.
- You send us the address and, for commercial roofs, an idea of the roof’s size.
- Inside, we look for signs of water under the roof where we can reach.
- The roof is inspected from every safe viewpoint, without walking on fragile surfaces.
- We record every defect with a photo and its likely cause.
- The report explains the condition and recommends what to do first.
Getting ready for the survey
- If it isn’t your property yet, arrange access through the agent
- Make sure we can get to the back of the property
- Clear the way to the loft hatch
How to book
Getting a price is simple: just ring 07833 053749 or send us an email and give us a few details about the property and we will suggest the right survey. The price is agreed up front.
Advice
Landlords, agents and block managers in Dulwich
Where a roof is shared: access has to be agreed with whoever owns or manages the building. Mention it when you contact us and we will plan the visit with that in mind.
Landlords and agents in Dulwich book surveys as well as householders. A written report with photos gives you a clear record of the flat roof.
What happens if roof problems are left?
Before replacing a flat roof, it helps to know if you really need to. At times the trouble is a handful of failed details, and at times the whole covering is worn. Our report gives you the evidence to discuss with a roofer. London’s older roofs often have bitumen felt underlay or none at all, so a slipped slate can soon mean water inside. Left unchecked, water soaks into timber and plaster and the damage spreads.
Every price we give includes VAT. Prices start from £150, including VAT. We confirm the exact price before booking.
Why book us in Dulwich
- We hold a CAA Flyer ID and Operator ID
- Packages from £150, with VAT included
- More than 20 years surveying roofs
- 5,000+ surveys completed
Read what a roof survey costs or our case studies.
Questions from Dulwich
Is parking a problem for a survey in Dulwich?
London parking needs a little planning, so let us know about permits, bays or a driveway as you book. The visit is then planned around what’s available.
Is my home in Dulwich listed or in a conservation area?
You can check whether a building is listed on Historic England’s list, and your council can tell you if it’s in a conservation area. If a home is listed, changes that affect its special interest need listed building consent, and in a conservation area re-roofing in different materials may need permission.
How many years has my flat roof got left?
A precise figure isn’t something we give, because so much depends on upkeep, exposure and workmanship. We describe the condition and say which work is urgent and which can wait.
Can you test old roof sheets for asbestos?
We do not test for asbestos. If we see materials that could contain it, such as cement sheets on a building from before 2000, we flag them so a specialist asbestos surveyor can check them.
Can you find where water is getting through my flat roof?
We check the whole roof, since water can travel before it shows inside. Splits, open laps, upstands, outlets and rooflights are all checked. If the cause can’t be seen, we’ll say so and suggest what would help.
Do you cover Dulwich?
Yes. We cover Dulwich and the rest of Greater London. For a price, call 07833 053749 or email us.
Can you survey a flat roof on an office or unit?
Yes. Offices, units, shops and blocks of flats are all part of our work. We quote bigger roofs on their size and how they’re reached, so please phone 07833 053749 or email us with the details.
Flat roof surveys in Dulwich: local notes
The wider area around Dulwich has a long history of building, with Kingswood House about 1.1 miles south. Older homes in the wider area frequently have features worth a closer look, like lead valleys, tall stacks and roofs that have been patched over the years. Many homes in inner London are Victorian and Edwardian terraces, often with Welsh slate roofs. From the street you may see only a parapet, with a butterfly roof and a valley gutter behind it draining to the back. Lead flashings, party-wall upstands and shared chimney stacks are typical of these houses, if yours is one of them. Alongside them, flat-roofed extensions, dormers, garages and commercial units are common almost everywhere.
Shop and office owners around Lewisham Shopping Centre may find that the flat roofs over shops and commercial units are worth checking before a leak, not after. Take a building like St Anthony's Catholic Primary School: schools and public buildings often have big flat roofs, and their outlets and upstands need regular checks.
Dulwich is about 1 mile south-east of Herne Hill, in Greater London. We survey roofs in Dulwich and the rest of Greater London. Dulwich is one of the towns and villages in Greater London we cover for flat roof surveys.
Flat roof surveys in SE22, SE21 and SE23 work the same way as everywhere else we cover. Streets in the area include Court Lane, Druce Road and Boxall Road, and we cover them all. You’ll find Dulwich on the A2216, which makes it simple to reach. We also cover Dulwich Village (1 mile north-west), West Dulwich (1 mile south), Herne Hill (1 mile north-west), Sydenham Hill (1 mile south-east) and Forest Hill (1 mile east). We also work in nearby towns like London (4 miles north), City of Westminster (6 miles north-west), Marylebone (6 miles north-west), Kensington (7 miles north-west), St Pancras (6 miles north) and Shoreditch (6 miles north).
Near you in Dulwich
Typical jobs here are in homes near The Crown and Greyhound pub, Dulwich Park and Alleyn's School, among other places. The nearest railway station is West Dulwich station, about 0.7 miles south-west of the centre. Nearby you’ll also find Dulwich Community Hospital (0.9 miles north) and Greenwich Castle (4 miles north-east). Not far away are Knight's Hill and Centre for Wildlife Gardening.
Towns and villages near Dulwich
Other services in Dulwich
Roof by roof
GRP fibreglass
Movement in the deck or a thin layer of resin can lead to cracks in GRP. We record any cracking and any signs of the deck moving.
Mastic asphalt
Mastic asphalt is a heavy, seamless covering frequently found on older blocks, balconies and commercial roofs. The survey checks for crazing, cracking, blistering and splits where the asphalt turns up the walls.