Greater London · London and the South East
Electronic Leak Detection in Strand-on-the-Green
Find out the condition of the flat roof membrane at your property in Strand-on-the-Green. Visits run on weekdays and weekends, in the daytime.
- Holes left by work on the roof
- Stains far from any visible defect
- Leaks through a flat roof with no obvious cause
What we are asked to look at in Strand-on-the-Green
Other trades on the roof can puncture the waterproofing. Engineers fitting equipment, solar panels or aerials may leave damage behind.
Here are some of the things we see often:
- New roofs to check before paving or planting
- Leaks that return after repairs
- Damp inside with no sign on the roof
- Holes left by work on the roof
For site and facilities teams at buildings such as Strand-on-the-Green Infant and Nursery School, large flat roofs, common on schools and other public buildings, need their outlets, upstands and coverings checked regularly.
Before booking any roof surveyor
- Whether any drone flown is registered with the CAA
- What exactly goes into their report
- Their report turnaround times
- Is VAT included in the price?
Electronic leak detection in Strand-on-the-Green
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’s a breach. It can find holes too small to spot by eye so your roofer knows exactly where to repair. The results come in a report with photos. Common reasons to book are stains far from any visible defect and new roofs to check before paving or planting, across green roofs, single-ply roofs and commercial flat roofs.
Across London, flat roofs are everywhere, from back additions and dormers to roof terraces, blocks of flats and offices. Coverings range from felt and asphalt to EPDM rubber, GRP fibreglass and single-ply membranes, each with its own weak points. In Strand-on-the-Green, as anywhere in London, the right approach depends on what the roof is made of. Many older flat roofs are felt or asphalt, and many newer ones EPDM rubber or GRP.
After the visit, you get a written report with photos, emailed to you. It explains the condition of the flat roof membrane, the defects we found and what we recommend.
- Place
- Strand-on-the-Green (W4, TW9, TW8)
- Wider area
- Greater London
- Price
- Quoted for your roof
- Report
- A written report with photos, by email
- Survey days
- Weekdays, Saturdays and Sundays
- Insured
- Professional indemnity and public liability
- Telephone
- 07833 053749
- Last updated
- 27 October 2026
Prices for electronic leak detection in Strand-on-the-Green
The price reflects the time and kit the roof needs. That comes down to:
- Commercial roofs and larger buildings
- The height of the building and how the roof can be seen safely
- How complicated the roof is, with its valleys, chimneys and parapets
- The roof’s overall size
To find out what your survey will cost, call 07833 053749 or use the contact form and tell us about the roof. The price is agreed before a date is set.
What we need to know
We’ll usually ask about:
- Why you want a survey: buying, a leak, a storm or new work
- When you need the report by
- Where water is showing inside, if it is
- Anything about access we should know
To arrange a survey, call 07833 053749 or drop us an email with the address and what you’d like to know about the roof. We will confirm the price before you book.
Questions from Strand-on-the-Green
Do you look at commercial flat roofs near Strand-on-the-Green, such as hotels?
Yes, commercial buildings, hotels included, are part of the work. Access to the roof is sorted out with whoever manages the building before the day.
Is parking a problem for a survey in Strand-on-the-Green?
London parking needs a little planning, so let us know about permits, bays or a driveway as you book. The visit is then planned around what’s available.
What does electronic leak detection do?
The waterproofing membrane normally stops an electrical current, so wherever there’s a hole, it passes through. That’s how we locate breaches you cannot see.
Is this an asbestos survey?
No. We do not carry out asbestos surveys or testing. We flag materials that could contain asbestos, such as cement sheets or soffits on pre-2000 buildings and suggest a specialist asbestos surveyor checks them before any work.
Is the repair part of the test?
No, the test finds the breaches and your roofer repairs them. Your roofer uses the report to target the repair.
Will you walk on the roof?
Not unless it’s safe. Most of what we need can be seen from safe viewpoints, the loft and, where it applies, a drone.
What does the report include?
It explains what we saw, what it means and what we’d suggest, with photographs throughout. It also says if any part of the roof couldn’t be seen safely.
Also near Strand-on-the-Green
Other services in Strand-on-the-Green
Practical tips
From years of surveys, a few habits stand out as worth the effort:
- Check new waterproofing before handover
- Get leaks traced quickly
- Use boards when working on the roof
- Stay off the flat roof unless needed
The report records each breach location with photos. Pass it to your roofer to repair the breach points.
Check contractors protect the waterproofing when they work up there. Check the roof after they’ve finished.
Why get it checked now?
Some flat roof leaks come from walls or details. ELD helps rule the membrane in or out, so other causes can be checked. London’s older roofs often have bitumen felt underlay or none at all, so a slipped slate can soon mean water inside. Left unchecked, water soaks into timber and plaster and the damage spreads.
All our prices include VAT. Electronic leak detection is quoted for your roof, because the method depends on the roof. You will know the price for your survey before booking.
Why us?
- A written report with photographs
- More than 20 years surveying roofs
- Visits on any day of the week
- Independent findings on the roof’s condition
Read how roof surveys are priced or what we found on two real jobs.
Flat roofs in Strand-on-the-Green
Historic houses such as Kew Palace, about 0.7 miles west, show how far back building in the area around Strand-on-the-Green goes. If your home is one of the older ones, expect a mix of original materials and later repairs on the roof, and any change of roofing material on a listed home needs checking with the council first. Within a mile and a half or so of Strand-on-the-Green there are several hotels, and like offices and blocks, hotels often sit under flat roofs. For hotels and other commercial buildings, finding the cause of a flat roof leak quickly keeps rooms in use.
If you let a flat or house near Chiswick station, flat roofs over rear additions and dormers in rented property are worth checking between tenancies. If your house is among the older ones in the streets near St Paul's Church, the flat roofs on later extensions tend to wear out long before the main roof.
Strand-on-the-Green is about 2 miles south of Acton, in Greater London. We carry out electronic leak detection for homeowners, landlords and businesses in Strand-on-the-Green and nearby. We cover towns and villages across Greater London, large and small. You can also see our page for London.
Postcode districts we cover here for electronic leak detection: W4, TW9 and TW8. If you need electronic leak detection at a property on Kew Road, Maze Road and Kent Road or a nearby road, we can help. Strand-on-the-Green is on the A3000, so it is easy for us to get to. Neighbouring places we cover for electronic leak detection include Kew (1 mile south), Grove Park (1 mile east), Gunnersbury (1 mile north), North Sheen (1 mile south) and Turnham Green (1 mile east). Further out, we also cover London (8 miles east), City of Westminster (6 miles east), Marylebone (6 miles east), Kensington (3 miles east), St Pancras (7 miles north-east) and Shoreditch (9 miles east).
Local landmarks in Strand-on-the-Green
Around Strand-on-the-Green, our work takes us to homes and buildings near Chiswick School, Kew Green and Bull's Head pub and the streets around them. Nearby too are Library for Iranian Studies (1.6 miles north) and Kew College Prep (less than half a mile south-west). For rail, the closest station is Chiswick station, roughly 0.5 miles south-east. Other landmarks nearby include Livat Hammersmith (2.2 miles east) and Barnes Hospital (1.5 miles south-east). Not far away are Richmond Hill and Kew Gardens Lake.
Landlords, agents and block managers in Strand-on-the-Green
Landlords, agents and building managers in Strand-on-the-Green and across Greater London can book any of our surveys. For a price for a let property or a block, call 07833 053749 or email us.
Shared roofs need a little more planning: we need access agreed with the freeholder or managing agent. Tell us about it when you book and we’ll plan the visit with that in mind.
The survey, step by step
The visit has one job: to see as much of the flat roof membrane as can safely be seen and record it clearly. Everything we note and photograph goes into the written report. It usually takes more time on a big roof than a small one, and the build-up of the roof makes a difference too. In Strand-on-the-Green, as in much of London, plenty of properties are flats or terraces without side access, so the back of the roof is often seen from upstairs windows, from inside or, where a flight is allowed, from the air. Mention any building rules, key holders or managing agents when you book.
- We start by finding out what the roof is made of and where it leaks.
- We confirm whether the roof is suitable for electronic testing.
- The testing method is chosen to suit the membrane and build-up.
- Testing runs across the roof to locate breaches in the membrane.
- The breaches are recorded with photos in a report for your roofer.
Before the survey
- Keep pets out of the way during the survey
- Mention any parking restrictions on your street
- Dig out any old roof reports or invoices
Getting a price
You can call us seven days a week, including Saturdays and Sundays. To book or ask a question, call 07833 053749 or send us an email.