Greater London · London and the South East
Roof Leak Investigation in West Dulwich
Roof leak investigations in West Dulwich, backed by more than 20 years’ experience. Every survey ends with a written report and photographs.
- Stains around a skylight
- Leaks below a flat extension roof
- Ceiling stains that grow after rain
The survey, step by step
Where it’s relevant and can be reached safely, the loft space is checked as well as the outside. In the loft, the signs we look for are staining, damp, daylight and sagging. The whole visit normally takes about 1–2 hours, more where the leak is intermittent or the roof is large. In a London area like West Dulwich, the main things to sort out are parking and access: tell us about permits, visitor bays or off-street space, which floor the property is on and how to get into the loft. On the day, the roof is looked at from the ground, from windows, from inside the loft space and from the roof where it’s safe.
- You let us know where the water appears, when, and what the weather was doing.
- We examine the damp area and the rooms near it.
- From the loft space, we trace the water’s route where there is safe access.
- Outside, we check flashings, valleys, chimneys, gutters and flat roof details from every safe viewpoint.
- We email a written report showing where the water most likely gets in.
Preparing for the visit
- If you are buying, check with the agent that we can get in
- For flats, check roof access has been agreed
- Have keys ready for side gates, garages or roof access doors
Booking a survey
Not sure which survey you need? It is easiest to phone 07833 053749 or send us an email and describe the roof and what’s worrying you. We’ll explain the options and the price.
Related advice
Roof leak investigations for homes and businesses in West Dulwich
Roof leaks rarely show up where you’d expect. It can run along a rafter, a batten or the underlay before it drips, so the stain on your ceiling is seldom right under the hole. Our leak investigation traces it back, one likely route at a time. Patching the spot above the stain frequently misses the real cause. Tracing the route first means any work can be aimed at the right place. We survey rooflights and dormers, the roof space and flat roof details, and the problems we’re asked to look at most are water through the ceiling under a flat roof and drips from nail tips in a cold loft.
Water getting into a London home often comes from a detail you cannot see from the street: a butterfly roof’s central valley gutter, a parapet gutter, a chimney flashing or a flat roof over a back addition. For a leak or storm damage in West Dulwich, those hidden details are where the inspection begins. A hidden gutter that overflows can send water a long way before it shows.
After the visit, you get a written report with photos, emailed to you. It explains the condition of the leaking roof, the defects we found and what we recommend.
- Place
- West Dulwich (SE21, SE27, SE19)
- Wider area
- Greater London
- Cost
- From £150 inc. VAT
- Report
- Written, with photos, emailed to you
- When we survey
- Monday to Sunday, daytime
- Cover
- PI and public liability insurance
- Phone
- 07833 053749
- Last updated
- 27 October 2026
FAQs for West Dulwich
Do you carry out roof surveys in West Dulwich?
We do. The survey and report are the same in West Dulwich as anywhere else.
Will parking be an issue for a roof survey in West Dulwich?
In much of London, parking needs planning: a visitor permit or a bay close to the door helps a lot.
Does the report include photos?
Yes. We photograph the roof as we go, and they go into the written report.
Will you check the loft?
Yes, where the survey calls for it and there is safe access. Inside, we look for damp, staining, gaps and sagging, as far as the space allows.
When does the report arrive?
That depends on the survey you book: Basic within 48 hours, Standard in 24–48 hours and Premium the same day. The report is emailed to you.
Does someone need to be in?
Someone needs to let us in if we’re looking inside or in the loft. Access is agreed with you as you book.
Can thermal imaging help find my roof leak?
Where conditions suit, it can. The best results come after a sunny day, on a dry roof with little wind. Damp areas can hold heat differently from dry ones. We always check what it shows with moisture readings.
Landlord and commercial surveys in West Dulwich
Surveys can also be booked by buyers’ agents acting for a client. The report is emailed, so it can go straight to your client.
For blocks of flats, a roof survey helps managing agents and residents’ management companies plan ahead. Recommendations are set out by urgency where it matters.
Checking the roof from the ground
After strong wind, take a look from the pavement or garden: broken slates or tiles in the garden, gaps along the ridge or loose lead are signs to note. Don’t go up yourself.
You can learn a lot from the ground. Binoculars help you spot slipped slates or tiles, gaps along the ridge and a leaning stack. Never climb onto the roof to look.
Roof leak investigations in West Dulwich: local notes
Close to the centre of London, a great many houses are Victorian or Edwardian terraces, many of them roofed in Welsh slate. A butterfly roof with a central valley gutter, tucked behind a parapet wall, is common on these houses. In a house like that, shared stacks, party-wall upstands and lead flashings all need looking at as far as they can be seen. Where water gets in depends a good deal on what the roof is made of and how it’s detailed. Kingswood House, about 0.2 miles south, is one of the historic houses in the wider area around West Dulwich. If your house is among the older ones, expect a mix of original materials and later repairs on the roof, and a listed home or one in a conservation area may need consent for changes of material.
If you run a business near Lewisham Shopping Centre, a quick answer on where water is coming in keeps a business running. If your house is among the older ones in the streets near Church of St Stephen, water on an older roof tends to find its way in at the lead, the valleys or the chimney.
West Dulwich is about 1 mile north-east of West Norwood, in Greater London. West Dulwich gets the same service as everywhere else we work: a careful inspection, photos and a written report. Our Greater London coverage includes West Dulwich.
Postcode districts we cover here for roof leak investigations: SE21, SE27 and SE19. Whether your property is on Berry Lane, Clive Road and Myton Road or anywhere close by, we can help. West Dulwich is on the A2199, which makes it simple to reach. Neighbouring places we cover for roof leak investigations include Sydenham Hill (1 mile east), West Norwood (1 mile south-west), Gipsy Hill (1 mile south), Dulwich (1 mile north) and Upper Norwood (1 mile south). Larger places within reach include London (5 miles north), City of Westminster (6 miles north-west), Marylebone (6 miles north-west), Kensington (7 miles north-west), St Pancras (7 miles north) and Shoreditch (6 miles north).
Local landmarks in West Dulwich
We work in homes and buildings around The Wood House, Dulwich Prep & Senior and Kingsdale Foundation School. There’s a railway station in West Dulwich itself: Sydenham Hill station. Nearby you’ll also find British Vintage Wireless And Television Museum (under half a mile west) and St Christopher's Hospice (1.3 miles south-east). For a walk, there’s Battersea Park Lake and Dulwich Upper Wood.
What this survey can’t tell you
Before you book, it’s worth knowing what a survey won’t do:
- Structural calculations (that’s a structural engineer’s job)
- Putting the leak right
- Water from pipes, tanks or heating systems
Not sure which survey suits your roof? You can ring 07833 053749 or drop us an email and we will tell you. The full list of what we check.
Roofs we survey in West Dulwich
- Lead flashings
- Slate and tile slopes
- Chimney stacks
- Flat roof details
- Valleys and parapet gutters
- The roof space
- Rooflights and dormers
Tips from our surveys
Here are a few things we’d tell any owner, before and after a survey:
- Protect furniture and flooring under the leak
- Check whether pipes or tanks run near the stain
- Move stored items away from the hatch
- Write down the wind direction and rain when it leaks
Standard includes a follow-up consultation to talk the findings through, while Premium includes one in person. It is a chance to ask about anything in the report.
Have flashings and flat roofs looked at every few years. Flashings, valleys and flat roof details are frequent weak points, and wear is easier to deal with before water gets in.
Also near West Dulwich
Other services in West Dulwich
When to book a survey in West Dulwich
Some water in the loft isn’t rain at all. Warm, moist air from the house rises into a cold roof space and condenses, particularly in lofts with blocked eaves. Drips from nails and damp underlay are typical signs.
We’re frequently asked to look at:
- Damp on a chimney breast
- Drips from nail tips in a cold loft
- Water marks that spread in wet weather
- Staining where a gutter or parapet meets the wall
Trees in and around Long Meadow shed leaves that can end up in nearby gutters, and an overflowing gutter soon means a wet wall.
Questions to ask before booking
- Is there a chance to talk the report through?
- What they won’t be able to tell you
- How soon the report will arrive
- Whether any drone flown is registered with the CAA