Greater London · London and the South East
Electronic leak detection in Hounslow, Greater London
A careful look at the flat roof membrane at your property in Hounslow, and put it all in a photo-illustrated written report.
- Leaking laps in the waterproofing
- Breaches around outlets and penetrations
- Patched roofs that still leak
About our electronic leak detection in Hounslow
ELD suits many waterproofing membranes on flat roofs over offices, units, blocks of flats and homes. It can be used to trace an existing leak or check a new membrane before handover. We quote for each roof based on its size and build-up. We can test on weekdays and at weekends, depending on the weather. Just ask about your roof. If you’ve noticed waterproofing to test before it’s covered and leaking laps in the waterproofing, a survey will tell you what’s going on, on liquid-applied waterproofing, commercial flat roofs and green roofs alike.
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 Hounslow, 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.
The report records the flat roof membrane as we found it on the day. It’s useful straight away, and a good reference for later, for example when you want to check whether anything has changed.
- Where
- Hounslow (TW13)
- Wider area
- Greater London
- Prices
- Quoted for your roof
- Your report
- Emailed report with photos and recommendations
- Appointments
- Weekdays, Saturdays and Sundays
- Cover
- PI and public liability insurance
- Phone
- 07833 053749
- Last updated
- 27 October 2026
Why act early in Hounslow
Chasing a leak again and again is frustrating. A report showing the breach points gives your roofer a clear target. In Hounslow, as across London, an overflowing gutter soaks the wall below, which can lead to damp inside. A small blockage left for a few winters becomes a damp problem.
Bigger, taller and commercial roofs take more time to survey, so they’re priced to match. The price is confirmed before you book.
What you get with us
- Customer satisfaction of 98%
- Plain-English reports with photos
- Over 20 years’ experience
- PI and public liability insurance
Read what a roof survey costs and two real surveys.
Local flat roofs in Hounslow
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 on extensions, dormers, garages and business units are found alongside them almost everywhere. The wider area around Hounslow has a long history of building, with Strawberry Hill House about 4 miles east. 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 the council can say whether a home is in a conservation area.
Anyone responsible for a site like Meadhurst Primary School will know that a large flat roof with a good many outlets and rooflights has many places where a membrane can fail. If you look after a shop, office or commercial unit, for instance near Treaty Centre, outlets and upstands on commercial flat roofs are the places to check before trouble starts.
Hounslow is about 1 mile north of Sunbury-on-Thames, in Greater London. Whether the building in Hounslow is a house, a flat or a commercial unit, we can survey the roof. Our area takes in places right across Greater London, from the larger towns to small villages. There is also a page for Guildford.
We work across the TW13 postcode area for electronic leak detection and the streets around it. Other places close to Hounslow include Ashford Common (1 mile south-west), Littleton Common (1 mile south-west), Sunbury-on-Thames (1 mile south), Feltham (1 mile north-east) and Bedfont (1 mile north). We also work in nearby towns such as London (15 miles east), City of Westminster (13 miles north-east), Marylebone (14 miles north-east), Kensington (11 miles north-east), St Pancras (15 miles north-east) and Hampstead (14 miles north-east).
Near you in Hounslow
Locally, jobs take us to homes and businesses close to Sunbury Park, Sunbury Manor School and Sunbury Manor School, among other places. For rail, the closest station is Sunbury station, about 0.9 miles south-east. Well-known places in the area include Treaty Centre (3.8 miles north-east) and Ashford Hospital (1.9 miles north-west). Not far away are St Ann's Hill and Staines Reservoirs.
How it works
On the day, we begin with a quick chat about the roof and anything that is worrying you. We then inspect everything that can safely be seen, using the ground, windows, the loft and a drone where applicable. The survey typically takes a length of time set by the membrane area and the build-up, and we’ll give you a guide when quoting. In a London area like Hounslow, the main things to sort out are parking and access: let us know about parking, the floor the property is on, any shared entrance and loft access. We then look at whatever is safely visible from ground level, windows, the loft and, where it is safe, the roof itself.
- 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 testing method is chosen to suit the membrane and build-up.
- We test the membrane and find where current is passing through it.
- You get a report showing where each breach is, for your roofer to repair.
Preparing for the visit
- Unlock side gates and any roof access doors
- Let us know about any leaks, stains or damp patches you know of
- For flats, check roof access has been agreed
Book a survey
Our phone lines are open seven days a week. To book or ask a question, phone 07833 053749 or send us an email.
Related advice
Surveys for landlords and agents in Hounslow
Managing agents and residents’ management companies use roof surveys to plan maintenance. Recommendations are set out by urgency where it matters, which helps when budgeting.
If you own several properties, you can book surveys for several addresses. To arrange surveys for several addresses, phone 07833 053749 or drop us an email.
What electronic leak detection does not cover
Some things cannot be seen without opening up the roof, so a survey has limits:
- Leaks from walls, copings or rooflights
- Roofs whose membrane or build-up is not suitable
- Areas we can’t reach or that can’t be tested
If you are not sure which survey you need, ring 07833 053749 or drop us an email and we’ll give you a straight answer before you book. The full list of what we check.
Roof types and parts we check
- Liquid-applied waterproofing
- Green roofs
- Commercial flat roofs
- Flat roof membranes
- Single-ply roofs
- Roof terraces and balconies
Questions from Hounslow
Will parking be an issue for a roof survey in Hounslow?
It can be, so it is useful to let us know about permits, visitor bays or off-street space when you book. The visit is then planned around what’s available.
Is Hounslow in the area you cover?
We do. The survey and report are the same in Hounslow as anywhere else.
Does ELD include fixing the breach?
No, the test finds the breaches and your roofer repairs them. The report gives your roofer the locations.
What’s in the survey report?
You get our findings in writing, part by part, with photos. Points are put with the most urgent first where relevant.
What’s the price of ELD?
We quote electronic leak detection for each roof, as the method and time depend on the roof. The price depends on the roof’s size and build-up. To get a quote, call 07833 053749 or send us an email.
Are you insured?
Every survey is covered by professional indemnity and public liability insurance, and details are available on request.
How do I arrange electronic leak detection in Hounslow?
It’s easiest to ring 07833 053749 or email us. Give us the address and a few details about the roof, and we’ll take it from there. Surveys run on weekdays, Saturdays and Sundays.
Nearby places to Hounslow
What else we do in Hounslow
What we’re asked to look at in Hounslow
Holes in a membrane often come from feet, tools or debris. Some are too small to see but water still finds them.
Here are some of the things we see often:
- Failed seams and laps
- Leaks under green or ballasted roofs
- Water coming in under a flat roof
- Waterproofing to test before it is covered
If your home is one of the older ones in the streets near Church of St Dunstan, flat-roofed rear additions and dormers added over the years are worth checking.
Questions to ask before booking
- How much experience they have with roofs like yours
- Their drone registration, if they fly one
- Whether the price includes VAT
- How soon the report will arrive
Tips from our surveys
A few practical points come up again and again on our surveys. They apply to most roofs:
- Find the breach before more patching
- Note where leaks show inside and when
- Act on new leaks promptly
- Have roof specifications to hand
Keep the report with the roof’s records. It is a dated record of the membrane’s condition.
Make sure contractors protect the waterproofing when fitting equipment. Check the roof after they’ve finished.