Greater London · London and the South East
Electronic leak detection in South Ealing, Greater London
Know where you stand with the flat roof membrane before you spend money on it. We carry out electronic leak detection in South Ealing.
- Leaking laps in the waterproofing
- New roofs to check before paving or planting
- Repairs that haven’t stopped the leak
Why get it checked now?
Chasing a leak again and again is frustrating. A report showing the breach points gives your roofer a clear target. Blocked gutters and hoppers on London houses overflow and soak brickwork. A small blockage left for a few winters becomes a damp problem.
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.
What you get with us
- Insured for professional indemnity and public liability
- We hold a CAA Flyer ID and Operator ID
- Thermal imaging and drones used where they help
- Every finding written up with photos
Take a look at what a roof survey costs or what we found on two real jobs.
Electronic leak detection in South Ealing
Electronic testing locates holes in the waterproofing, not every cause of water getting in. Water coming through walls, copings, rooflights or plumbing will not show on the test. If the evidence points elsewhere, we will say so. It won’t show water getting in through brickwork or around frames. The report makes clear what was and wasn’t tested. We will point you to the likely next step. We survey green roofs, flat roof membranes and liquid-applied waterproofing, and the problems we’re asked to look at most are a flat roof leak that can’t be traced and leaks under green or ballasted roofs.
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, each with its own weak points. In South Ealing, 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.
Every survey ends with a written report, with photographs, sent by email. It sets out the condition of the flat roof membrane, any defects and our written recommendations.
- Where
- South Ealing (W5, W13, TW8)
- Region
- Greater London
- Cost
- Quoted for your roof
- Your report
- Emailed report with photos and recommendations
- When we survey
- Monday to Sunday, daytime
- Insurance
- Professional indemnity and public liability
- Telephone
- 07833 053749
- Last updated
- 27 October 2026
Do you need electronic leak detection in South Ealing?
Water travels under flat roof membranes. The stain inside can be far from the hole, so tracing it by eye is difficult.
Problems we come across often include:
- Breaches around outlets and penetrations
- Leaking laps in the waterproofing
- Punctures from foot traffic or tools
- Stains far from any visible defect
A roof leak in a hotel or guest house around South Ealing means lost rooms as well as repairs.
Before booking any roof surveyor
- Whether any drone flown is registered with the CAA
- Their report turnaround times
- Whether you can ask questions once you have the report
- Is VAT included in the price?
Common questions in South Ealing
Can you look at the flat roof of a hotel or office near South Ealing?
Yes, commercial flat roofs are part of what we cover. Larger commercial roofs are quoted for the building, and roof access is agreed with you before the visit.
Is parking a problem for a survey in South Ealing?
It rarely stops a survey, but it is worth planning. Tell us what parking is available nearby, and the visit is planned around it.
Do you test for asbestos?
No. We don’t sample or test for asbestos. The report may flag materials that could contain asbestos on buildings built or refurbished before 2000, with a recommendation to have a specialist asbestos surveyor check before it’s disturbed.
What does the report include?
It sets out what we found, why it matters and what we recommend, with photos throughout. Anything we couldn’t see safely is noted too.
Will you fly a drone over my roof?
Where it helps and the rules allow, yes. Our sub-250g drone is flown by a CAA-registered operator with a Flyer ID and Operator ID, and every flight depends on the airspace and the weather.
What’s the price of ELD?
Each roof is quoted on its size and build-up. Tell us about the roof and where it leaks, and phone 07833 053749 or drop us an email for a quote.
How long does electronic leak detection take?
It depends on the size of the roof and its build-up. We’ll give you an idea when we quote.
Honest limits
In fairness, a roof survey has limits:
- Repairing the breaches (that is for your roofer)
- The extent of water in the insulation
- Water entering through details rather than the membrane
If in doubt, call 07833 053749 or send us an email and we’ll recommend the right survey. What our survey covers.
What this survey covers
- Green roofs
- Flat roof membranes
- Commercial flat roofs
- Roof terraces and balconies
- Single-ply roofs
- Liquid-applied waterproofing
Tips that help
Most of what helps is simple and safe from the ground. A few suggestions:
- Get leaks traced quickly
- Have roof specifications to hand
- Find the breach before more patching
- Ask contractors to protect the membrane
Where the evidence points to walls, copings or rooflights, we’ll note it, so other causes can be checked.
Ask trades working on the roof to protect the membrane when they work up there. Have the roof looked at after other work.
Roof by roof
Liquid-applied waterproofing
Testing a liquid-applied roof depends on what’s beneath the coating.
Green and ballasted roofs
ELD is easier on a new roof before it’s covered.
Electronic leak detection in South Ealing: local notes
Historic houses such as Gunnersbury Park, about 0.7 miles east, show how far back building in the area around South Ealing goes. 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, and a listed home or one in a conservation area may need consent for changes of material. South Ealing has a number of hotels within about a mile and a half. For hotels and other commercial buildings, finding the cause of a flat roof leak quickly keeps rooms in use.
Take a building like Grange Primary School: schools and public buildings frequently have big flat roofs, and their outlets and upstands need regular checks. If you own a rental within reach of Brentford station, a flat roof over a rented flat is easy to forget until the tenant reports a leak.
South Ealing is about 1 mile south of Ealing, in Greater London. Anywhere in South Ealing, we can carry out electronic leak detection at your property, on a weekday, Saturday or Sunday. Across Greater London, we cover South Ealing. Our London page covers surveys nearby.
Here we cover the W5, W13 and TW8 postcode area for electronic leak detection. You will find streets such as South Road, Elers Road and Carew Road, and we cover them all. If you’re just outside South Ealing, we cover Ealing (1 mile north), Hanwell (1 mile north-west), West Ealing (2 miles west), Pitshanger (2 miles north) and Brentham Garden Suburb (2 miles north). Further out, we also cover London (9 miles east), City of Westminster (7 miles east), Marylebone (7 miles east), Kensington (5 miles east), St Pancras (8 miles east) and Shoreditch (10 miles east).
Near you in South Ealing
We work in homes and buildings around Lammas Park, Ealing Independent College and Ealing Park Tavern, among other places. Nearby too are Library for Iranian Studies (1.4 miles east) and Great Ealing School (under half a mile north). The nearest railway station is Brentford station, about 0.9 miles south of the centre. Other landmarks nearby include Gunnersbury Park House - Large Mansion (0.9 miles east) and Ealing Hospital (1.7 miles west). For a walk, there’s Kew Gardens Lake and Castlebar Hill.
Places near South Ealing
More services for South Ealing
What happens on the day
The visit has one job: to see as much of the flat roof membrane as can safely be seen and record it clearly. Notes and photographs go into the written report. It normally takes a time that depends on the size of the roof and how it’s built, which we’ll explain when we quote. In South Ealing, visits are available on weekdays and at weekends. 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.
- First, we confirm which roof areas are included.
- We get the roof ready for testing.
- Testing runs across the agreed area.
- Each breach found is located and recorded.
- You receive the results to pass to your roofer.
Before the survey
- Note where any stains or damp appear
- Move anything stored under the loft hatch
- Mention any parking restrictions on your street
How to book
Surveys can be booked for weekdays, Saturdays or Sundays. To arrange a day that suits you, phone 07833 053749 or email us with the address and the days you’d prefer.