Greater London · London and the South East
Electronic Leak Detection in East Dulwich
We carry out electronic leak detection in East Dulwich and the rest of Greater London. Surveys run on any day of the week.
- New roofs to check before paving or planting
- Damage from equipment installers
- Failed seams and laps
Electronic leak detection in East Dulwich
Electronic leak detection, or ELD, finds holes in flat roof waterproofing membranes. It works with an electrical current that passes through the membrane only where there is a breach. That lets us locate holes that are too small to see so your roofer knows exactly where to repair. You get a written report with photographs of each breach found. Typical surveys look at leaking laps in the waterproofing and breaches around outlets and penetrations, across single-ply roofs, roof terraces and balconies and liquid-applied waterproofing.
Across London, flat roofs are everywhere, from back additions and dormers to roof terraces, blocks of flats and offices. They’re covered in felt, asphalt, EPDM rubber, GRP fibreglass or single-ply membranes, and each fails in its own way. In East 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.
Pictures do a lot of the work in our reports, so you can see each defect rather than just read about it. Anything out of sight on the day is listed as such.
- Place
- East Dulwich (SE5, SE22, SE15)
- Wider area
- Greater London
- Cost
- Quoted for your roof
- Your report
- Emailed report with photos and recommendations
- Appointments
- Monday to Sunday, daytime
- Insured
- PI and public liability insurance
- Phone
- 07833 053749
- Page updated
- 27 October 2026
Useful tips for East Dulwich property owners
These tips come from what we see on roofs every week, before and after a survey:
- Test new membranes before covering them
- Get leaks traced quickly
- Record dates and spots where water appears
- Share any drawings of the roof
If water has been getting in, insulation under the membrane may be wet. Your roofer can advise on that and other checks can help judge it.
Keep outlets and gutters on flat roofs clear. Water that sits on the roof finds breaches faster.
East Dulwich questions
How do I find out if my home in East Dulwich is listed?
We cannot confirm that for you, but Historic England’s list and your council can. A change of roofing material may need consent in either case.
Can you look at the flat roof of a hotel or office near East Dulwich?
Yes. As well as homes, we look at flat roofs on offices, hotels, blocks of flats and commercial units. For a bigger roof, you’ll get a quote based on the building.
Will you walk on the roof?
Only when it’s safe. Safety comes first, and fragile or steep roofs cannot always be walked on. We use safe viewpoints, the loft space and a drone where it applies, and the report records anything we couldn’t see.
What’s the price of ELD?
Each roof is quoted on its size and build-up. Send us details of the roof, and call 07833 053749 or send us an email for a quote.
Are you structural engineers?
No. We’re experienced roof surveyors, and visible signs such as sagging are noted, but we don’t provide calculations or an engineer’s opinion. If one is needed, the report says so.
What happens after the survey?
The report comes by email, and you decide the next step: raise it with a seller, send it to an insurer, brief a roofer or share it with a managing agent.
Is the repair part of the test?
No. We test the membrane and report. The report shows where each breach is so your roofer can fix them.
Flat and commercial roofs around East Dulwich
The wider area around East Dulwich has a long history of building, with Kingswood House about 2.2 miles south. 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. Close to the centre of London, a great many houses are Victorian or Edwardian terraces, many of them roofed in Welsh slate. Many have butterfly roofs draining to a central valley gutter, with parapet walls and gutters hidden behind them. If your home in East Dulwich is one of them, lead flashings, party-wall upstands and shared chimney stacks are part of the picture too. Alongside them, flat-roofed extensions, dormers, garages and commercial units are common almost everywhere.
For site and facilities teams at buildings like Dog Kennel Hill School, large flat roofs, common on schools and other public buildings, need their outlets, upstands and coverings checked regularly. If you look after a shop, office or commercial unit, for instance near Surrey Quays Shopping Centre, the flat roofs over shops and commercial units are worth checking before a leak, not after.
East Dulwich is about 3 miles south of London, in Greater London. If you’re in East Dulwich, booking works exactly as it does anywhere else: get in touch, agree the price and pick a day. East Dulwich is one of the towns and villages in Greater London we cover.
Electronic leak detection in SE5, SE22 and SE15 are booked the same way as anywhere else. If you need electronic leak detection at a property on Rye Lane, Wren Road and Adys Road or anywhere close by, we can survey it. With the A2214 and A2215 close by, East Dulwich is simple for us to get to. Close by, we survey roofs in Denmark Hill (1 mile north-west), Herne Hill (1 mile south-west), Dulwich Village (1 mile south), Camberwell (1 mile north) and Peckham (1 mile north-east). Larger places within reach include London (3 miles north), City of Westminster (5 miles north-west), Marylebone (5 miles north-west), Kensington (6 miles north-west), St Pancras (5 miles north) and Shoreditch (4 miles north).
Landmarks near East Dulwich
Around East Dulwich, our work takes us to homes and buildings near The Fox on the Hill pub, The Charter School East Dulwich and The Charter School and the streets around them. East Dulwich has its own railway station: East Dulwich station. Well-known places in the area include House of Dreams Museum (less than half a mile south-east) and Surrey Quays Shopping Centre (2.8 miles north-east). The countryside around East Dulwich includes Knight's Hill and Centre for Wildlife Gardening.
What you can safely check yourself
Fresh stains on ceilings or walls after rain are worth noting. Take a photo and write down when you saw it.
A lot can be seen from the ground. Binoculars help you spot slipped slates or tiles, gaps along the ridge and a leaning stack. Please do not climb up for a closer look.
What happens on the day
The visit typically starts outside and finishes in the loft: outside views come first, then the loft space if there’s safe access. All told, expect more time on a big roof than a small one, and the build-up of the roof makes a difference too. In a London area like East Dulwich, the main things to sort out are parking and access: let us know about parking, the floor the property is on, any shared entrance and loft access. We then look at what can be seen safely from ground level, windows, the loft and, where it is safe, the roof itself.
- First, you tell us about the roof build-up and where water is showing.
- We check that the membrane and build-up suit electronic leak detection.
- The testing method is chosen to suit the membrane and build-up.
- We test the membrane and find where current is passing through it.
- The breaches are recorded with photographs in a report for your roofer.
Before we arrive
- Make sure pets are kept safely away
- Clear the way to the loft hatch
- Find any records of previous roof work
Arrange a survey
To get a price for electronic leak detection in East Dulwich, phone 07833 053749 or drop us an email. A few details about the property and the roof help us price the survey accurately.
Related advice
Places near East Dulwich
Also in East Dulwich
Why get it checked now?
Water trapped under a membrane can soak insulation and decking. Finding the breach sooner limits that. In a London terrace or conversion, a roof defect rarely stays your problem alone: failed flashings and blocked valley gutters can send water into more than one home. Finding it early keeps the work smaller.
Bigger, taller and commercial roofs take more time to survey, so the price reflects that. The price is confirmed before you book.
Why book us in East Dulwich
- Professional indemnity and public liability insurance
- A sub-250g drone, flown with a CAA Flyer ID and Operator ID
- More than 5,000 surveys completed
- Over 20 years’ experience
What this survey cannot tell you
This isn’t a RICS building survey, a structural engineer’s report or an asbestos survey. It also has these limits:
- Repairing the breaches (that is for your roofer)
- Moisture spread under the membrane
- Areas we can’t reach or that cannot be tested
Not sure which survey suits your roof? You can phone 07833 053749 or drop us an email and we’ll tell you before booking. What a survey covers and doesn’t.
Roof types and parts we check
- Roof terraces and balconies
- Flat roof membranes
- Green roofs
- Single-ply roofs
- Commercial flat roofs
- Liquid-applied waterproofing
When to book a survey in East Dulwich
Joints and laps in a membrane can fail over time. A gap that’s hard to see can let water in for months before it shows.
Common reasons to book include:
- Failed seams and laps
- Leaks under green or ballasted roofs
- Holes left by work on the roof
- Leaks at pipes, outlets or fixings
If you live in an older home near The Latter Rain Outpouring Revival Church, flat-roofed rear additions and dormers added over the years are worth checking.
What to check before booking
- Whether the roof space is looked at, where there is one
- What experience they bring
- Whether VAT is added on top
- Will the report include photos?