Greater London · London and the South East
Electronic leak detection in Coombe, Greater London
A careful look at the flat roof membrane at your property in Coombe, and put it all in a written report with photographs.
- Leaks through a covered membrane
- Damage from equipment installers
- Leaks through a flat roof with no obvious cause
Your questions about electronic leak detection in Coombe
Is Coombe in the area you cover?
Yes, Coombe is one of the places we work. Every survey there gets the same written report with photos, and visits run on weekdays and weekends.
Is my home in Coombe listed or in a conservation area?
Start with Historic England’s list for listing and your council for conservation areas. It’s worth checking before planning roof work, as both can affect what’s allowed.
What do I do with the report?
You receive the written report by email, with photos and recommendations. It’s yours to share with a seller, insurer, roofer or managing agent, whichever applies.
What’s the price of ELD?
Each roof is quoted on its size and build-up. Send us details of the roof, and phone 07833 053749 or drop us an email for a quote.
Can you survey a shared roof?
Yes, once whoever controls the roof agrees access. On a shared roof we can only inspect the parts we are allowed to reach.
How long have you been surveying roofs?
More than 5,000 surveys over 20+ years, across London and South East England.
Does ELD work under paving or planting?
On some roofs, yes. What sits on the membrane affects the method, so we check the build-up first.
About our electronic leak detection in Coombe
Our ELD testing covers flat roofs in Coombe and the rest of London and South East England. Testing normally takes longer on a large roof than a small one, with the construction of the roof playing a part too. Every roof is quoted on its size and build-up. You get a written report with photos. We’re frequently asked to look into leaking laps in the waterproofing and leaks that return after repairs, across single-ply roofs, roof terraces and balconies and liquid-applied waterproofing.
On a London roof terrace or a flat roof over a back addition, water often runs under the covering before it shows. Upstands against parapets, outlets and the edge where flat meets pitched are common entry points. In a converted house in Coombe, the roof above may belong to the building rather than one flat.
The report is written in plain words, so you don’t need to be a roofer to follow it. Photographs show what each point refers to.
- Place
- Coombe (CR0, CR2, CR9)
- Region
- Greater London
- Cost
- Quoted for your roof
- Your report
- Emailed report with photos and recommendations
- When we survey
- Monday to Sunday, daytime
- Cover
- PI and public liability insurance
- Call
- 07833 053749
- Updated
- 27 October 2026
Leave it or get it looked at?
Chasing a leak again and again is frustrating. A clear record of where the breaches are helps break that cycle. Many older London roofs have only old felt under the slates, or no underlay at all, so a slipped slate can soon mean water inside. Left alone, that means wet timbers and plaster, which is a far bigger job than the roof fault itself.
What a survey costs comes down to the roof itself: its size, its height, how many sections it has and how it can be reached and seen safely. We quote electronic leak detection for each roof, as the method and time depend on the roof.
Why choose Independent Roof Survey in Coombe
- Covered by professional indemnity and public liability insurance
- 5,000+ surveys completed
- Customer satisfaction of 98%
- An independent view of the roof
Take a look at our cost guide and our case studies.
Tips from our surveys
There is plenty you can do without going near the roof. Here’s what helps most:
- Do not keep patching the same spot
- Record dates and spots where water appears
- Do not let outlets block
- Test new membranes before covering them
If water has been getting in, insulation under the membrane may be wet. That is something to discuss with your roofer, and moisture readings can help.
Act on leaks quickly. Water under a membrane can spread.
Flat and commercial roofs around Coombe
Alongside Victorian and Edwardian terraces, outer London has a great many interwar semis, frequently with hipped roofs of clay or concrete tiles. Bay roofs, hip ridges and dormers from later loft conversions are the details that set these houses apart. Flat roofs on extensions, dormers, garages and business units are found alongside them almost everywhere. Addington Palace, about 1.3 miles east, is one of the historic houses in the wider area around Coombe. If your home is one of the older ones, expect a mix of original materials and later repairs on the roof, and the council can say whether a home is in a conservation area.
If you let a flat or house near South Croydon station, the flat roof over a let home is worth a look before it becomes a tenant complaint. Take a building like Coombe Wood School: ponding and blocked outlets on a wide flat roof are worth catching before the next wet season.
Coombe is about 1 mile east of Croydon, in Greater London. We provide electronic leak detection for homeowners, landlords and businesses in Coombe and the surrounding area. We cover towns and villages across Greater London, large and small. There is also a page for London.
Every address in CR0, CR2 and CR9 is within our area for electronic leak detection, from the main roads to the quietest streets. You’ll find streets such as Oaks Road, Coombe Road and Coombe Lane, and we cover them all. We also cover Croydon (1 mile west), Addiscombe (1 mile north), South Croydon (1 mile south-west), Shirley Oaks (1 mile north-east) and Shirley (1 mile north-east). Further out, we also cover London (9 miles north), City of Westminster (11 miles north), Marylebone (11 miles north), Kensington (11 miles north-west), St Pancras (11 miles north) and Shoreditch (11 miles north).
Around Coombe
Around Coombe, our work takes us to homes and buildings near Coombe Lodge pub, Royal Russell School and St Peter's Primary School and the streets around them. The closest station to Coombe is South Croydon station, roughly 1 mile west. A little further out are St George's Walk (1.4 miles north-west) and Croydon Airport Visitor Centre (2.1 miles west). Open spaces near Coombe include Bramley Bank and Duppas Hill.
Common roof problems in Coombe
New membranes can have defects from installation. Testing before the roof is covered or handed over helps find them.
Look out for signs like these:
- Leaks that return after repairs
- Water coming in under a flat roof
- Damp inside with no sign on the roof
- Leaking laps in the waterproofing
For businesses in and around places like St George's Walk, outlets and upstands on commercial flat roofs are the places to check before trouble starts.
Choosing a roof surveyor
- What experience they bring
- What exactly goes into their report
- What follow-up you get after the report
- How they’ll see the roof: from the ground, the loft, the roof or by drone
Checking the roof from the ground
After heavy rain, check ceilings and the tops of walls for new stains. Photograph them and note the date.
Look up at the roof after a storm, from ground level: 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.
What we do, step by step
It helps to start with what’s prompted the survey: buying, a leak, storm damage, new work or just wanting to know where things stand. That way we can focus on what matters to you. The visit usually takes a time that depends on the roof’s area and construction, which we’ll explain when we quote. London terraces rarely offer a view of the whole roof from one spot, so a visit in Coombe moves between viewpoints: the pavement, upstairs windows, the loft and any safe spot at the back. If other people live in the building, let us know who can let us into the shared parts.
- First, you let us know about the roof build-up and where water is showing.
- The roof is assessed to see if electronic testing will work on it.
- The method depends on the membrane and what sits above and below it.
- Testing runs across the roof to locate breaches in the membrane.
- You get a report showing where each breach is, for your roofer to repair.
Getting ready for the survey
- Dig out any old roof reports or invoices
- Leave side gates unlocked
- Jot down any questions you want answered
Booking a survey
Every survey is priced before it is booked, so you know where you stand. We quote electronic leak detection for each roof, as the method and time depend on the roof. For a price for your roof, call 07833 053749 or send us an email.
Advice
Nearby places to Coombe
Other services in Coombe
Rented homes, blocks and businesses
A roof problem in a let property affects your tenants as well as the building. A survey helps you spot issues early and plan the work.
Where a roof is shared: access has to be agreed with whoever owns or manages the building. Tell us about it when booking and we’ll plan the survey around it.