Greater London · London and the South East
Eastfields Electronic Leak Detection
Electronic leak detection to pinpoint holes in flat roof membranes in Eastfields. More than 5,000 surveys completed across London and South East England.
- Leaks through a flat roof with no obvious cause
- Damage from equipment installers
- Leaks showing away from the breach
Honest limits
This is not a RICS building survey, a structural engineer’s report or an asbestos survey. It also has these limits:
- Build-ups without a suitable layer below
- Fixing the holes we find
- Leaks from walls, copings or rooflights
Not sure which survey suits your roof? You can call 07833 053749 or drop us an email and we’ll tell you. What our survey covers.
Roofs we survey in Eastfields
- Green roofs
- Liquid-applied waterproofing
- Commercial flat roofs
- Single-ply roofs
- Flat roof membranes
- Roof terraces and balconies
Electronic leak detection in Eastfields
Our ELD testing covers flat roofs in Eastfields and the rest of London and South East England. A visit normally takes a time that depends on the size of the roof and how it’s built, which we set out in the quote. Electronic leak detection is quoted for your roof, because the method depends on the roof. You get a report with photos. We survey green roofs, liquid-applied waterproofing and commercial flat roofs, and people most frequently book us about waterproofing to test before it’s covered and holes around roof penetrations.
Water getting through a flat roof in London can travel under the covering and appear some way from the hole. Outlets, upstands against parapet walls and joins with the main roof are frequent culprits. In a converted house in Eastfields, the roof above may belong to the building rather than one flat.
Most points in the report come with a picture, because a photo of a cracked flashing says more than a paragraph. Anything out of sight on the day is listed as such.
- Location
- Eastfields (CR4, SW16, SW17)
- Wider area
- Greater London
- Prices
- Quoted for your roof
- Your report
- A written report with photos, by email
- Appointments
- Monday to Sunday, daytime
- Cover
- Professional indemnity and public liability
- Call
- 07833 053749
- Page updated
- 27 October 2026
What we do, step by step
When we arrive, we begin with a quick chat about the roof and anything that’s worrying you. After that, we check everything we can see safely, using the ground, windows, the loft and a drone where applicable. Most surveys take as long as needed for the membrane area and the build-up, which we set out in the quote. London terraces rarely offer a view of the whole roof from one spot, so in Eastfields we work round the house, using the street, the windows, the loft and any safe vantage point behind it. Shared stairs or a basement flat? Let us know who holds the keys.
- We start with what you know about the roof and the leak.
- The roof is assessed for suitability first.
- We choose a low-voltage or high-voltage method to match the roof.
- We test the roof and locate any breaches.
- You get a report with photos of each breach.
How to prepare
- Jot down any questions you want answered
- If you are buying, let the agent know when we’re coming
- If the roof is shared, arrange access with whoever manages the building
Getting a price
Booking is simple: just call 07833 053749 or email us and give us some details about the property and we will point you to the right survey. We confirm the price before anything is booked.
Advice
Landlords, agents and block managers in Eastfields
If you own several properties, surveys can be booked for more than one address. To arrange surveys for several addresses, phone 07833 053749 or use the contact form.
Surveys can also be booked by buyers’ agents acting for a client. The report is emailed, so it can go straight to your client.
Common roof problems in Eastfields
Work on the roof can damage a membrane. Fixings, equipment and foot traffic can leave small holes.
Look out for signs like these:
- New roofs to check before paving or planting
- Breaches hidden under paving or planting
- Punctures from foot traffic or tools
- Water coming in under a flat roof
For landlords with property near Mitcham Eastfields station, flat roofs on let property tend to be checked only when they fail, which is the costly way round.
Choosing a roof surveyor
- What exactly goes into their report
- What experience they bring
- What they won’t be able to tell you
- Is there a chance to talk the report through?
Practical tips
Most of what helps is simple and safe from the ground. A few suggestions:
- Use boards when working on the roof
- Test new membranes before covering them
- Keep outlets clear of debris
- Act on new leaks promptly
File the report with your roof paperwork. It is a dated record of the membrane’s condition.
Limit foot traffic on flat roofs. Many breaches come from foot traffic.
Nearby places to Eastfields
Other services in Eastfields
Your questions about electronic leak detection in Eastfields
Do you cover Eastfields?
We do. Every survey there gets the same written report with photographs.
Is my home in Eastfields listed or in a conservation area?
The council and Historic England’s list are the places to check. Either can affect what roof work is allowed, so it’s worth checking before planning any.
How long does electronic leak detection take?
It depends on the size of the roof and its build-up. You’ll know roughly how long before we start.
Will you photograph what you find?
Yes. We photograph the roof as we go, and the report uses them to show each finding.
How many surveys have you done?
We have been surveying roofs for over 20 years and have completed over 5,000 surveys across London and the South East.
Do you carry professional indemnity insurance?
Our cover is professional indemnity plus public liability, and we can provide details if a managing agent needs them.
What does electronic leak detection do?
ELD passes a small electrical current across the roof to locate holes in the membrane. The current only gets through where the membrane is breached so we can pinpoint it.
Flat and commercial roofs around Eastfields
About 3.4 miles west lies Southside House, a reminder of how long the area around Eastfields has been built on. Older homes in the wider area often have features worth a closer look, like lead valleys, tall stacks and roofs that have been patched over the years. Further from the centre, London’s housing takes in interwar semis with hipped roofs in clay or concrete tiles as well as slate-roofed terraces. On a semi of that age, the small roofs over the bays, the hip tiles and any later dormer each need their own look. Flat roofs fill the gaps in between, on extensions, garages, dormers and business premises.
Anyone responsible for a site like St Mark's Church of England Academy will know that schools and public buildings often have big flat roofs, and their outlets and upstands need regular checks. If yours is one of the older homes in the streets near St. Mark's Church, the flat roofs on later extensions tend to wear out long before the main roof.
Eastfields is about 3 miles south-east of Wimbledon, in Greater London. Eastfields is one of many places we visit across Greater London, for houses, flats and commercial buildings. Our area takes in places right across Greater London, large and small. We also survey roofs in London.
Postcode districts we cover here for electronic leak detection: CR4, SW16 and SW17. Whether your property is on Bond Road, Hill Road and York Lane or a nearby road, we can help. Close by, we survey roofs in Mitcham (1 mile south), Hackbridge (1 mile south), Colliers Wood (1 mile north-west), Furzedown (1 mile north) and Merton Abbey (1 mile west). We also work in nearby towns such as London (7 miles north), City of Westminster (7 miles north), Marylebone (8 miles north), Kensington (7 miles north), St Pancras (8 miles north) and Shoreditch (9 miles north).
Local landmarks in Eastfields
Around Eastfields, our work takes us to homes and buildings near The White Lion of Mortimer pub, Figge's Marsh and Furzedown Secondary School. Eastfields has its own railway station: Mitcham Eastfields station. Well-known places in the area include Centrale Croydon (3.1 miles south-east) and Wandle Industrial Museum (0.7 miles south-west). Green spaces nearby include Henman Hill and Oakleigh Way.
How the survey changes by roof type
Green and ballasted roofs
Green roofs and ballasted roofs cover the waterproofing. Some methods can work through these layers but it depends on the layers.
EPDM rubber roofs
ELD on EPDM depends on the product and the layers. We check this first.