Greater London · London and the South East
Electronic Leak Detection in Coombe Hill
An experienced roof surveyor for electronic leak detection in Coombe Hill. Over 5,000 surveys and 20+ years behind us.
- Leaking laps in the waterproofing
- Waterproofing to test before it is covered
- A flat roof leak that cannot be traced
Electronic leak detection in Coombe Hill: what you get
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. It can find holes too small to spot by eye, so your roofer can repair them. The results come in a report with photos. Typical surveys look at new membranes needing a check before handover and water coming in under a flat roof, across single-ply roofs, liquid-applied waterproofing and flat roof membranes.
London has a lot of flat roofs: rear additions, dormers, roof terraces and the roofs of blocks and offices. They’re covered in felt, asphalt, EPDM rubber, GRP fibreglass or single-ply membranes, each with its own weak points. Which one is on a roof in Coombe Hill shapes how it is checked. Older flat roofs are often felt or asphalt, newer ones rubber or GRP.
If any part of the flat roof membrane couldn’t be seen safely, we say so in the report. You’ll know exactly what was inspected and what wasn’t, and what we’d suggest next.
- Where
- Coombe Hill (SW15, KT2)
- Wider area
- Greater London
- Cost
- Quoted for your roof
- Reports
- Written, with photos, emailed to you
- Survey days
- Weekdays, Saturdays and Sundays
- Cover
- PI and public liability insurance
- Phone
- 07833 053749
- Updated
- 27 October 2026
When you need someone else
In fairness, there are limits to any roof survey:
- Water entering through details rather than the membrane
- Areas we cannot reach or that can’t be tested
- Carrying out the repair work
If you are not sure which survey you need, phone 07833 053749 or send us an email and we’ll give you a straight answer. What a survey covers and doesn’t.
What this survey covers
- Flat roof membranes
- Liquid-applied waterproofing
- Green roofs
- Roof terraces and balconies
- Single-ply roofs
- Commercial flat roofs
Towns and villages near Coombe Hill
Other services in Coombe Hill
When to book a survey in Coombe Hill
Roofs covered with paving, ballast or planting hide the membrane. ELD can work on some covered roofs, depending on the build-up.
It is worth booking a survey if you’ve seen:
- New membranes needing a check before handover
- Patched roofs that still leak
- Breaches around outlets and penetrations
- Leaking laps in the waterproofing
If you run a business near Bentall Centre, flat roofs over shops and units are easy to forget until water comes through a ceiling.
Choosing a roof surveyor
- How they plan to inspect the roof safely
- Whether VAT is in the quoted price
- Whether any drone flown is registered with the CAA
- Whether they hold professional indemnity and public liability insurance
Flat and commercial roofs around Coombe Hill
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. Hips, bay roofs and later loft conversions are typical of those semis, if your home is one of them. Mixed in with those pitched roofs are plenty of flat ones, over rear extensions, dormers, garages and shops. The wider area around Coombe Hill has a long history of building, with Pembroke Lodge about 1.5 miles north-west. 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.
Parking in Coombe Hill, as in most of London, takes a little planning: let us know about parking bays, permits or a driveway when you book, as a space near the door cannot be promised. For landlords with property near Norbiton station, flat roofs on let property tend to be checked only when they fail, which is the costly way round.
Coombe Hill is about 2 miles north-east of Kingston upon Thames, in Greater London. Wherever you are in Coombe Hill, we can come and survey your property, on a weekday, Saturday or Sunday. Coombe Hill is one of the places in Greater London we cover for electronic leak detection. Our London page covers surveys nearby.
We survey roofs across SW15 and KT2 for electronic leak detection and the streets around it. Streets in the area include Keswick Avenue, Derwent Avenue and Robin Hood Lane, and we cover them all. Coombe Hill is on the A308, which makes it simple to reach. If you’re just outside Coombe Hill, we cover Kingston Vale (1 mile east), Putney Vale (1 mile east), Coombe (1 mile south), Norbiton (2 miles south-west) and Motspur Park (2 miles south-east). Within a short drive, we also cover London (9 miles north-east), City of Westminster (7 miles north-east), Marylebone (8 miles north-east), Kensington (5 miles north-east), St Pancras (9 miles north-east) and Shoreditch (10 miles north-east).
Around Coombe Hill
In Coombe Hill, that means homes and buildings near Coombe Girls' School, Canbury School and Richmond Park. The nearest railway station is Norbiton station, about 1.6 miles south-west. Well-known places in the area include Bentall Centre (2.2 miles south-west) and Kingston Hospital (1.4 miles south-west). Green spaces nearby include Kingston Hill Road area and Fishpond Wood and Beverley Meads.
Roof by roof
Liquid-applied waterproofing
What lies under a liquid coating decides if ELD will work.
Single-ply membranes
ELD often works on single-ply membranes, depending on the type and build-up.
How it works
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 typically takes longer on a large roof than a small one, and the build-up of the roof makes a difference too. Surveys in Coombe Hill can be booked for any day of the week. It helps if you can point us to a visitor permit or a nearby bay, and to clear a path to the loft hatch. A back bedroom window can be the best vantage point for a rear addition, so we may ask to use one.
- We agree the area to be tested.
- The surface is prepared for the chosen method.
- Testing runs across the agreed area.
- We mark the breach locations in our records.
- You receive the results to pass to your roofer.
Getting ready for the survey
- Show us where any leaks or stains appear
- Keep pets inside or away from the areas we are looking at
- If the roof is shared, arrange access with whoever manages the building
Booking a survey
To get a price for electronic leak detection in Coombe Hill, call 07833 053749 or drop us an email. A few details about the property and the roof help us give you an accurate price.
Advice
What happens if roof problems are left?
Patching where you think the leak is often misses it. Testing shows where the membrane is actually breached. 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.
The cost of a survey depends on the roof: its size, its height, how many sections it has and how it can be reached and seen safely. Electronic leak detection is quoted for your roof, because the method depends on the roof.
What you get with us
- An independent look at the roof
- Photos and a written report every time
- Customer satisfaction of 98%
- Over 5,000 surveys carried out
Read our cost guide and two real surveys.
DIY checks: what’s safe
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.
Keep a simple record: when leaks happen, ground-level photos and any past roof work. Send it with your enquiry.
Common questions in Coombe Hill
Is Coombe Hill in the area you cover?
Yes. We cover the whole of London and South East England, and Coombe Hill is part of that. Just phone 07833 053749 or use the contact form and let us know about the property, and we’ll talk through which survey suits.
Is my home in Coombe Hill listed or in a conservation area?
For listing, use Historic England’s list; for conservation areas, ask the council. The answer matters most when a change of material is on the cards.
How long have you been surveying roofs?
More than 5,000 surveys over 20+ years.
Do I have to be there for the survey?
That depends on the survey. Inside the building and in the loft, we need someone to let us in; we will agree the details when you book.
How fast do I get the report?
Each package has its own report time. Basic: within 48 hours. Standard: 24 to 48 hours. Premium: the same day. Mention any deadline when booking.
What do I do with the report?
You’ll receive the report by email, and what you do next is up to you: use it with a seller, an insurer, a roofer or a managing agent.
Can you survey at the weekend?
Surveys run on weekdays and at weekends. To arrange a date, ring 07833 053749 or drop us an email.