Greater London · London and the South East
Electronic leak detection in Hanworth, Greater London
Know where you stand with the flat roof membrane before you spend money on it. Electronic leak detection in Hanworth, with photographs and a clear written report.
- Leaks showing away from the breach
- Damage from equipment installers
- Patched roofs that still leak
Electronic leak detection in Hanworth: what you get
There are different ELD methods. Low-voltage methods usually need a wet roof surface and high-voltage methods need the membrane dry and exposed. The right method depends on the membrane and the build-up of the roof, and we’ll explain our choice. We will say if your roof does not suit either method before any testing starts. If you’ve noticed leaks that return after repairs and a flat roof leak that can’t be traced, we can find out what’s behind it, whatever the roof.
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 block or conversion in Hanworth, the flat roof is frequently a shared part of the building.
If any part of the flat roof membrane couldn’t be seen safely, we say so in the report. That way, it is clear what was covered and what wasn’t, and what we’d suggest next.
- Place
- Hanworth (TW13, TW12, TW2)
- Wider area
- Greater London
- Prices
- Quoted for your roof
- Report
- A written report with photos, by email
- When we survey
- Weekdays, Saturdays and Sundays
- Insured
- Professional indemnity and public liability
- Telephone
- 07833 053749
- Page updated
- 27 October 2026
Signs you need electronic leak detection in Hanworth
Other trades on the roof can puncture the waterproofing. Engineers fitting equipment, solar panels or aerials may leave damage behind.
Problems we come across frequently include:
- Holes around roof penetrations
- Damage from equipment installers
- Repairs that haven’t stopped the leak
- Gaps at membrane joints
The streets around a church such as St Richard's Church are often among the oldest in a place, and if yours is one of the older homes nearby, later flat-roofed additions are common on older houses, and their edges and upstands often show the first signs of wear.
Before you book anyone
- How much experience they have with roofs like yours
- If they fly a drone, whether they hold a CAA Flyer ID and Operator ID
- Will they check the loft as well as the outside?
- How they plan to inspect the roof safely
What affects the cost of electronic leak detection
Prices always include VAT. The things that change the price are:
- Whether it is a home or a commercial building
- Chimneys, valleys, parapets and other details
- The use of thermal imaging or a drone
- Height and safe access
All our prices include VAT. We quote electronic leak detection for each roof, as the method and time depend on the roof. We confirm the exact price before booking.
Getting in touch
We’ll normally ask about:
- Pictures of the roof from a safe spot, if you have them
- The reason for the survey, such as buying, a leak or storm damage
- The type of building and roof, like pitched or flat
- Where water is showing inside, if it is
Getting a price is simple: just phone 07833 053749 or send us an email and give us a few details about the property and we’ll explain which survey suits. The price is agreed up front.
Electronic leak detection around Hanworth
Historic houses such as Strawberry Hill House, about 2 miles east, show how far back building in the area around Hanworth goes. Period homes nearby can have lead valleys, tall chimneys and a patchwork of past repairs. 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. If your home in Hanworth is one of them, bay roofs, hips and later dormers each have their own details. Alongside them, flat-roofed extensions, dormers, garages and commercial units are common almost everywhere.
Anyone responsible for a site like Buckingham Primary School will know that ponding and blocked outlets on a wide flat roof are worth catching before the next wet season. Controlled parking zones are common in London, so mention any permit rules for Hanworth, along with any off-street space.
Hanworth is about 6 miles south of Hayes, in Greater London. We survey roofs in Hanworth across London and South East England. Our area takes in places right across Greater London. There is also a page for London.
We survey roofs across the TW13, TW12 and TW2 postcode area for electronic leak detection. Whether your property is on Fir Road, New Road and Bel Lane or anywhere close by, we can help. Close by, we survey roofs in Hampton (1 mile south-east), Hampton Hill (1 mile east), Fulwell (1 mile east), Whitton (2 miles north-east) and West Molesey (2 miles south). Larger places within reach include London (13 miles east), City of Westminster (11 miles north-east), Marylebone (12 miles north-east), Kensington (9 miles north-east), St Pancras (13 miles north-east) and Shoreditch (15 miles north-east).
Landmarks near Hanworth
Typical jobs here are in homes near Hampton School, Hampton Academy and Crane Park and the streets around them. The closest station to Hanworth is Hampton station, roughly 1.1 miles south. Well-known places in the area include Teddington Memorial Hospital (1.8 miles east) and Kempton Steam Museum (1.1 miles west). Green spaces nearby include Garden Lake and Oak Avenue Local Nature Reserve.
Rented homes, blocks and businesses
Surveys can also be booked by buyers’ agents acting for a client. The report is emailed, so it can go straight to your client, photographs included.
Letting agents and landlords in Hanworth book surveys as well as householders. The report gives you a dated record of the flat roof membrane, with photos, useful for planning maintenance.
The survey, step by step
We check the roof from outside and, where it is relevant and there’s safe access, from inside the roof space too. In the loft, the signs we look for are staining, damp, daylight and sagging, as far as the space allows. All in, the survey usually takes a length of time set by the size of the roof and how it’s built, and we’ll give you a guide when quoting. Surveys in Hanworth can be booked for any day of the week. It helps if you can point us to a visitor permit or a nearby bay. A back bedroom window can be the best vantage point for a rear addition, so we may ask to use one.
- We ask about the roof, its age, its membrane and where leaks appear inside.
- 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.
- We test the membrane and find where current is passing through it.
- The breaches are recorded with photos in a report for your roofer.
Before we arrive
- Let us know about any leaks, stains or damp patches you know of
- If you’re buying, let the agent know when we’re coming
- Leave a clear route to the loft
Book a survey
For a price for electronic leak detection in Hanworth, ring 07833 053749 or email us. Some details about the property and the roof help us give you an accurate price.
Related advice
Why it is worth a survey now in Hanworth
Some breaches are too small to see. ELD picks up breaches a visual check might miss, on suitable membranes. Blocked gutters and hoppers on London houses overflow and soak brickwork, which can lead to damp inside. A blocked outlet ignored for a winter or two can mean damp walls inside.
The cost of a survey depends on the roof: its size, its height, how many sections it has and how safely it can be seen. We quote electronic leak detection for each roof, as the method and time depend on the roof.
Why us?
- 98% of customers satisfied
- An independent look at the roof
- Surveys on any day of the week
- 20+ years’ experience
See our cost guide and our case studies.
When you need someone else
Some things can’t be seen without opening up the roof, so a survey has limits:
- Build-ups without a suitable layer below
- Carrying out the repair work
- Leaks from plumbing or windows
Not sure which survey suits your roof? You can call 07833 053749 or email us and we’ll tell you. The full list of what we check.
Roofs we survey in Hanworth
- Commercial flat roofs
- Flat roof membranes
- Roof terraces and balconies
- Green roofs
- Liquid-applied waterproofing
- Single-ply roofs
Common questions in Hanworth
Do you cover Hanworth?
Yes, Hanworth is one of the places we work. Every survey there gets the same written report with photographs, and visits run on weekdays and weekends.
Will parking be an issue for a roof survey in Hanworth?
Typically it’s manageable with a little notice. Let us know the parking rules on your street and we will work around them.
Is this a RICS survey?
No. This is a survey of the roof only, and it is not a RICS Level 2 or Level 3 survey. It can sit alongside a RICS survey if you want both.
Will you photograph what you find?
Yes. We photograph the roof as we go, and the report uses them to show each finding alongside our recommendations.
Do you carry professional indemnity insurance?
Our cover is professional indemnity plus public liability.
How do you choose the testing method?
We choose the method that suits the roof. We’ll explain why when we quote.
What’s the best way to book?
It is easiest to phone 07833 053749 or drop us an email. Tell us the address and a little about the roof. We survey seven days a week.