Greater London · London and the South East
Electronic leak detection in Foots Cray, Greater London
Find out the condition of the flat roof membrane at your property in Foots Cray. We visit on weekdays and at weekends.
- Patched roofs that still leak
- A flat roof leak that cannot be traced
- Holes around roof penetrations
Electronic leak detection in Foots Cray
ELD can be carried out in more than one way. Low-voltage testing is typically done with the surface wet, while high-voltage testing needs a dry, exposed membrane. Which one suits depends on the membrane and the layers of the roof and we explain which we will use. We’ll say if your roof does not suit either method before any testing starts. If you’re worried about repairs that haven’t stopped the leak and damage from equipment installers, we can find out what’s behind it.
On a London roof terrace or a flat roof over a back addition, water frequently runs under the covering before it shows. Outlets, upstands against parapet walls and joins with the main roof are frequent culprits. In a converted house in Foots Cray, the roof above may belong to the building rather than one flat.
After the visit, you get a photo-illustrated written report, sent by email. It explains the condition of the flat roof membrane, the defects we found and what we recommend.

- Location
- Foots Cray (DA14, BR5)
- Region
- Greater London
- Prices
- Quoted for your roof
- Report
- Emailed report with photos and recommendations
- Appointments
- Weekdays and weekends
- Cover
- PI and public liability insurance
- Phone
- 07833 053749
- Updated
- 27 October 2026
When to book a survey in Foots Cray
On a flat roof, water spreads under the waterproofing. The leak may show some distance from where water gets in, so tracing it by eye is difficult.
A survey makes sense if you’ve noticed:
- Leaks showing away from the breach
- Holes around roof penetrations
- Repairs that haven’t stopped the leak
- New roofs to check before paving or planting
Parking in Foots Cray, as in most of London, takes a little planning: tell us about permits, visitor bays or off-street space as you book, as a space near the door cannot be promised.
Choosing a roof surveyor
- Do they have a CAA Flyer ID and Operator ID for drone work?
- What they won’t be able to tell you
- How they plan to inspect the roof safely
- Their report turnaround times
The survey, step by step
Safety comes first on every visit. We inspect whatever is safely visible, and if part of the roof cannot be seen, the report says so. The survey usually takes more time on a big roof than a small one, with the construction of the roof playing a part too. In Foots Cray, visits are available on weekdays and at weekends. It helps if you can point us to a visitor permit or a nearby bay. Upstairs rooms at the back are useful too, as they frequently give the best view of a rear addition.
- We ask about the roof, its age, its membrane and where leaks appear inside.
- We confirm whether the roof is suitable for electronic testing.
- The method depends on the membrane and what sits above and below it.
- We test the membrane and find where current is passing through it.
- The breaches are recorded with photographs in a report for your roofer.
How to prepare
- Agree roof access with the managing agent if it is shared
- Let us know about parking near the property
- Find any records of previous roof work
Arrange a survey
Surveys can be booked for weekdays, Saturdays or Sundays. To arrange a day that suits you, ring 07833 053749 or email us with the address and the days you’d prefer.
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Landlord and commercial surveys in Foots Cray
Landlords and letting agents in Foots Cray book surveys as well as householders. The report gives you a dated record of the flat roof membrane, with photos, useful for planning maintenance.
Letting agents can arrange access with tenants, at a time agreed ahead of time. We survey seven days a week, which can make access easier.
What we look for on each type of roof
Single-ply membranes
Many offices and units have single-ply roofs. Seams and penetrations are typical breach points.
Green and ballasted roofs
Testing before planting or ballast goes on is simpler.
Should I look at the roof myself first?
After strong wind, take a look from the pavement or garden: pieces of tile or slate on the ground, a gap in the ridge or a lifted flashing are all worth noting. Leave anything above ground level to a survey.
Inside, the loft is a good place to look, with care. Take a torch and only step on boards or joists, and look for staining, damp timber or daylight coming through.
Foots Cray questions
Is Foots Cray in the area you cover?
Yes, Foots Cray is within the area we cover. We survey roofs across London and South East England. You can ring 07833 053749 or drop us an email with the address and some details.
Can parking be tricky for a visit in Foots Cray?
In much of London, parking needs planning: a visitor permit or a bay close to the door helps a lot.
Will I get photos?
Yes. Photographs are taken throughout the survey, and the report uses them to show each finding.
Do you survey roofs on blocks of flats?
Yes. A shared roof needs access agreed first. Let us know about it as you book and we will explain what’s needed.
Do I need to be at home?
If the survey includes the loft or the inside of the building, someone needs to let us in. Access is agreed with you when you book.
What’s the best way to book?
To book, phone 07833 053749 or use the contact form and let us know the address and what you need to know. We will confirm the price and agree a day with you.
Do you carry professional indemnity insurance?
Our cover is professional indemnity plus public liability, and details are available on request.
Tips that help
These tips come from what we see on roofs every week:
- Act on new leaks promptly
- Keep a note of leaks after rain
- Do not let outlets block
- Have roof specifications to hand
Keep the report with the roof’s records. It’s a dated record of the membrane’s condition.
Keep people off the flat roof unless they need to be there. Many breaches come from foot traffic.
Electronic leak detection around Foots Cray
With Danson House about 2.8 miles north, Foots Cray sits in an area with a long building history. Period homes nearby can have lead valleys, tall chimneys and a patchwork of past repairs, and the council can say whether a home is in a conservation area. Alongside Victorian and Edwardian terraces, outer London has a great many interwar semis, frequently with hipped roofs of clay or concrete tiles. On a semi of that age, the small roofs over the bays, the hip tiles and any later dormer each need their own look. Alongside them, flat-roofed extensions, dormers, garages and commercial units are common almost everywhere.
For landlords with property near Sidcup station, the flat roof over a let home is worth a look before it becomes a tenant complaint. For site and facilities teams at buildings like Orchard Primary School, ponding and blocked outlets on a wide flat roof are worth catching before the next wet season.
Foots Cray is about 1 mile south-east of Sidcup, in Greater London. Foots Cray gets the same service as everywhere else we work: a careful inspection, photos and a written report. We cover towns and villages across Greater London. You can also see our page for London.
Every address in DA14 and BR5 is covered for electronic leak detection, from the main roads to the quietest streets. If you need electronic leak detection at a property on Cray Road, Evry Road and The Avenue or a nearby road, we can help. Foots Cray is on the A223, so it is easy for us to get to. Nearby, we also carry out electronic leak detection in Ruxley (1 mile east), Albany Park (1 mile north-west), Upper Ruxley (1 mile east), Sidcup (1 mile north-west) and North Cray (2 miles north-east). Within a short drive, we also cover London (11 miles north-west), City of Westminster (13 miles north-west), Marylebone (13 miles north-west), Kensington (15 miles north-west), St Pancras (13 miles north-west) and Shoreditch (11 miles north-west).
What’s near Foots Cray
In Foots Cray, that means homes and buildings near Foots Cray Meadows, Kemnal Technology College and Walsingham School and the streets around them. For rail, the closest station is Sidcup station, roughly 1.4 miles north. Nearby you will also find Metropolitan Police Museum (1.3 miles north-west) and Queen Mary's Hospital (0.6 miles west). Not far away are Summer Hill and The Warren.