Surrey · London and the South East
Electronic leak detection in Sunbury-on-Thames, Surrey
An experienced roof surveyor for electronic leak detection in Sunbury-on-Thames. More than 20 years and over 5,000 surveys across London and the South East.
- Leaks under green or ballasted roofs
- Punctures from foot traffic or tools
- A flat roof leak that can’t be traced
Electronic leak detection for Sunbury-on-Thames homes and businesses
How electronic leak detection works in Sunbury-on-Thames
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. The test shows breaches in the membrane, not water coming through masonry or around frames. Our report keeps that distinction clear. You will also know what to check next. If you are worried about holes around roof penetrations and leaking laps in the waterproofing, we can find out what’s behind it, whatever the roof.
In a town like Sunbury-on-Thames, a good many shops, schools and business units have flat roofs. They’re easy to forget until water comes through a ceiling tile, and by then the insulation underneath may be wet. A survey, or electronic testing where the membrane suits it, shows what’s going on. Let us know who manages the building so access to the roof can be arranged.
Every survey ends with 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
- Sunbury-on-Thames (TW16)
- Region
- Surrey
- Cost
- Quoted for your roof
- Your report
- Written, with photos, emailed to you
- Appointments
- Weekdays and weekends
- Cover
- Professional indemnity and public liability
- Telephone
- 07833 053749
- Last updated
- 27 October 2026
What electronic leak detection looks like in Sunbury-on-Thames
Handmade clay tiles and tile-hung walls are typical of Surrey’s older houses. Horsham stone slab roofs survive on some old buildings in Surrey. Next to the main roofs there is usually a flat roof somewhere, whether on an extension, a garage or a commercial unit. With Hampton Court Palace about 3.5 miles east, Sunbury-on-Thames sits in an area with a long building history. 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 any change of roofing material on a listed home needs checking with the council first.
Anyone responsible for a site like St Ignatius RC Primary School will know that schools and public buildings frequently have big flat roofs, and their outlets and upstands need regular checks. For landlords with property near Sunbury station, flat roofs over rear additions and dormers in rented property are worth checking between tenancies. Take an older house close to St Saviour: the flat roofs on later extensions tend to wear out long before the main roof.
Sunbury-on-Thames is about 7 miles south of Hayes, in Surrey. We carry out electronic leak detection for homeowners, landlords and businesses in Sunbury-on-Thames and nearby. Sunbury-on-Thames is one of the places in Surrey where we work. You can also see our page for Guildford.
We survey roofs across the TW16 postcode area for electronic leak detection and the streets around it. Local streets include Station Road, The Ridings and Ravenscourt, and we cover them all. Main roads around Sunbury-on-Thames include the A244 and A308, which makes travel easy. Nearby, we also carry out electronic leak detection in Upper Halliford (1 mile south-west), Charlton (1 mile west), Ashford Common (1 mile north-west), Hounslow (1 mile north) and Littleton Common (1 mile west). Within a short drive, we also cover Guildford (13 miles south-west), Woking (10 miles south-west), Camberley (15 miles south-west), Epsom (8 miles south-east), Ewell (8 miles south-east) and Egham (6 miles west).
Around Sunbury-on-Thames
Locally, jobs take us to homes and businesses close to Sunbury Manor School, The Three Fishes Public House and Sunbury Park. There’s a railway station in Sunbury-on-Thames itself: Sunbury station. Other landmarks nearby include Kempton Steam Museum (1 mile north-east) and No. 2 New Zealand General Hospital (2 miles south). For a walk, there is St Ann's Hill and Kempton Park Reservoirs.
Different roofs, different checks
Single-ply membranes
Some single-ply membranes suit electronic testing well, depending on the type and build-up.
Bituminous membranes
Many flat roofs use bitumen-based membranes. The build-up decides which method will work.
Leave it or get it looked at?
Some flat roof leaks come from walls or details. ELD helps rule the membrane in or out so attention can go to the right place. Blocked gutters and downpipes on homes in Sunbury-on-Thames overflow onto walls, and damp follows inside. At roof level, a loose tile or tired flashing does the same. Left alone, both only get worse.
All our prices include VAT. We quote electronic leak detection for each roof, as the method and time depend on the roof. You will know the exact price before booking.
Why us?
- Independent findings on the roof’s condition
- More than 20 years surveying roofs
- Satisfaction rate of 98%
- Over 5,000 surveys carried out
Landlord and commercial surveys in Sunbury-on-Thames
For blocks of flats, a roof survey helps managing agents and residents’ management companies plan ahead. Recommendations are set out by urgency where it matters.
Freeholders and residents’ companies use a roof report to plan and budget, with the most urgent items set out first.
Can I check my roof myself?
You can learn a lot from ground level. Binoculars help you spot slipped slates or tiles, gaps along the ridge and a leaning stack. Please do not climb up for a closer look.
Watch the gutters in a downpour, from a window or the ground. Overflowing water can be a sign of a blockage or a gutter that has dropped.
Questions from Sunbury-on-Thames
How do I find out if my home in Sunbury-on-Thames is listed?
Check Historic England’s online list first, then ask the council about conservation areas and any Article 4 direction. The answer matters most when a change of material is on the cards.
Is Sunbury-on-Thames in the area you cover?
Yes, Sunbury-on-Thames is one of the places we work. Every survey there gets the same written report with photographs.
Does electronic leak detection work on all membranes?
It depends on the membrane and the build-up. Tell us what you know about the roof and we will confirm suitability.
Does ELD work under paving or planting?
On some roofs, yes. Covered roofs limit the methods we can use, so we check the build-up first.
Can you survey in bad weather?
Light rain is usually fine; heavy rain and wind are different. In high wind or heavy rain, a drone can’t fly and access may not be safe, and we’d agree another day.
Is this a RICS survey?
No. We’re experienced roof surveyors, and our survey covers the roof rather than the whole building. If you need a full building survey, you’ll need a RICS survey as well.
What do I do with the report?
You’ll receive the report by email, and you decide the next step: use it with a seller, an insurer, a roofer or a managing agent.
Places near Sunbury-on-Thames
Other services in Sunbury-on-Thames
What happens on the day
Time on site depends on the size and shape of the roof; as a rough guide, the survey takes as long as needed for the size of the roof and how it’s built, which we’ll explain when we quote. You are welcome to ask questions while we’re there. For a visit in Sunbury-on-Thames, we need access to the loft, any rooms with leaks or stains, and the outside of the building. Mention gates, side passages and anything at the back. Visits can be on weekdays, Saturdays or Sundays.
- First, you let us know about the roof build-up and where water is showing.
- We check that the membrane and build-up suit electronic leak detection.
- We pick the low-voltage or high-voltage method that suits the roof.
- We test the membrane and find where current is passing through it.
- The breaches are recorded with photographs in a report for your roofer.
Preparing for the visit
- Let us know about any leaks, stains or damp patches you know of
- Dig out any old roof reports or invoices
- Check pets are kept safely away
Arrange a survey
If you have photos of the roof, send them over. Pictures from the ground or a window are fine, and please do not climb up for a closer look. To send them or to book, phone 07833 053749 or use the contact form.
Advice
Practical tips
Nothing here needs a ladder. A few suggestions:
- Clear flat roof outlets regularly
- Get leaks traced quickly
- Check new waterproofing before handover
- Share any drawings of the roof
Questions about the results are welcome. We will explain what was found and what it means.
Act on leaks quickly. Water under a membrane can spread.