Greater London · London and the South East
Electronic leak detection in Sutton, Greater London
Electronic leak detection to pinpoint holes in flat roof membranes for Sutton, from an experienced roof surveyor. You get a clear written report with photos.
- Water coming in under a flat roof
- New membranes needing a check before handover
- Holes left by work on the roof
Why it is worth a survey now in Sutton
A visual inspection can miss tiny holes. ELD picks up breaches a visual check might miss, on suitable membranes. Many older London roofs have only old felt under the slates, or no underlay at all, so a slipped slate can soon mean water inside. Left alone, that means wet timbers and plaster, which is a far bigger job than the roof fault itself.
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?
- Photographs and a written report every time
- Covered by professional indemnity and public liability insurance
- 20+ years’ experience
- Customer satisfaction of 98%
See our cost guide and two real surveys.
Electronic leak detection for homes and businesses in Sutton
Electronic testing locates holes in the waterproofing but not every way water gets in. Water coming through walls, copings, rooflights or plumbing won’t show on the test. If the evidence points elsewhere, we’ll say so. It won’t show water getting in through brickwork or around frames. The report makes clear what was and wasn’t tested. You will also know what to check next. If you’ve noticed a flat roof leak that can’t be traced and leaking laps in the waterproofing, a survey will tell you what’s going on, whatever the roof.
London has a lot of flat roofs: rear additions, dormers, roof terraces and the roofs of blocks and offices. They’re covered in felt, asphalt, EPDM rubber, GRP fibreglass or single-ply membranes, and each fails in its own way. Which one is on a roof in Sutton shapes how it’s checked. Older flat roofs are often felt or asphalt, newer ones rubber or GRP.
The report is yours to share with whoever needs it: a seller or estate agent, an insurer, a roofer, a builder or a managing agent.
- Location
- Sutton (SM1, SM2, SM3, SM7)
- Region
- Greater London
- Prices
- Quoted for your roof
- Reports
- Written, with photos, emailed to you
- When we survey
- Weekdays, Saturdays and Sundays
- Insured
- PI and public liability insurance
- Phone
- 07833 053749
- Last updated
- 27 October 2026
Other services in Sutton
Can I check my roof myself?
Fresh stains on ceilings or walls after rain are worth noting. Take a photo and write down when you saw it, which helps when we look at the roof.
Your own check is a good start, but it is not a survey. From ground level, valleys, flashings and the backs of chimneys are often out of sight, and those are details a survey looks at closely.
What happens on the day
The visit typically starts outside and finishes in the loft: first the slopes, edges and gutters from every safe viewpoint, then the roof space where it can be reached. In total, it takes a time that depends on the size of the roof and how it’s built, which we set out in the quote. From the street, a London terrace usually shows only its front slope or parapet, so a visit in Sutton moves between viewpoints: the pavement, upstairs windows, the loft and any safe spot at the back. If other people live in the building, tell us who can let us into the shared parts.
- First, we confirm which roof areas are included.
- The surface is prepared for the chosen method.
- We work across the roof with the test equipment.
- We mark the breach locations in our records.
- The report is sent for your roofer to act on.
Before the survey
- If you’re buying, let the agent know when we’re coming
- Note where any stains or damp appear
- For flats, make sure roof access has been agreed
Booking a survey
We survey roofs seven days a week. To arrange a day that suits you, phone 07833 053749 or use the contact form with the address and the days you’d prefer.
Advice
How the survey changes by roof type
Single-ply membranes
Many offices and units have single-ply roofs. Laps and fixings are where holes often appear.
Liquid-applied waterproofing
Small holes in liquid waterproofing may leak. Where the roof suits it, testing can find them.
What a survey costs
We confirm the price for the job before booking. These are the things that affect it:
- Extensions, dormers and garages with roofs of their own
- Roof area
- Any need for thermal images or a drone flight
- Building height and the viewpoints available
Larger roofs, taller buildings and commercial roofs take longer, so the price reflects that. The price is confirmed before you book.
What we need to know
Before you get in touch, it helps to have:
- Any marks or damp showing indoors
- What made you get in touch
- When you need the report by
- Access details, such as a loft hatch or a shared roof
To get a price for electronic leak detection in Sutton, ring 07833 053749 or send us an email. A few details about the property and the roof help us price the survey accurately.
Practical tips
Some practical points come up on survey after survey. They’re worth knowing whatever the roof:
- Check new waterproofing before handover
- Share any drawings of the roof
- Limit access to the roof
- Do not leave water getting in
After your roofer repairs the breaches, a retest can confirm them if the build-up allows.
Keep outlets and gutters on flat roofs clear. Water that sits on the roof finds breaches faster.
Electronic leak detection around Sutton
Outer London has lots of Victorian and Edwardian terraces with slate roofs, but also a great many interwar semis, often with hipped roofs in clay or concrete tiles. Bay roofs, hip ridges and dormers from later loft conversions are the details that set these houses apart. Flat roofs on extensions, dormers, garages and business units are found alongside them almost everywhere. Nonsuch Mansion, about 1.6 miles west, is one of the historic houses in the wider area around Sutton. On older houses around here, roofs often carry the marks of earlier repairs, from replaced slates to new lead.
Landlords with a home close to Sutton (London) station may find that a flat roof over a rented flat is easy to forget until the tenant reports a leak. Take a building like Robin Hood Junior School: large flat roofs, common on schools and other public buildings, need their outlets, upstands and coverings checked regularly. For a London address like Sutton, it is useful to know about controlled parking before the day.
Sutton is about 9 miles south of Kensington, in Greater London. Whether the building in Sutton is a house, a flat or a commercial unit, the roof can be surveyed. We cover towns and villages across Greater London, from the larger towns to small villages. We also survey roofs in London.
Surveys in SM1, SM2, SM3 and SM7 work the same way as everywhere else we cover. Streets in the area include High Street, Manor Place and St Nicholas Way, and we cover them all. Being close to the B2230, Sutton is simple for us to get to. Neighbouring places we cover for electronic leak detection include Benhilton (1 mile north), Carshalton (1 mile east), Shanklin Village (1 mile south), St Helier (1 mile north) and Rosehill (1 mile north). Within a short drive, we also cover London (10 miles north-east), City of Westminster (10 miles north), Marylebone (11 miles north), Kensington (9 miles north), St Pancras (12 miles north) and Shoreditch (12 miles north-east).
What’s near Sutton
Locally, jobs take us to homes and businesses close to Sutton Grammar School, The Grapes pub and Manor Park, among other places. Sutton has its own railway station: Sutton (London) station. A little further out are St Helier Hospital (1.1 miles north-east) and Honeywood Museum (1.3 miles east). Green spaces nearby include Devonshire Avenue Nature Area and Duppas Hill.
Sutton questions
Will parking be an issue for a roof survey in Sutton?
Sometimes, yes. Where there are permit zones, a visitor permit or nearby pay-and-display bay works well, and a driveway is even better.
Do you carry out roof surveys in Sutton?
Yes, Sutton is one of the places we work. The survey and report are the same in Sutton as anywhere else, and visits run on weekdays and weekends.
Can you tell me if my roof has asbestos?
No. Our report may flag materials that could contain asbestos, but confirming it is a job for a specialist asbestos surveyor. Buildings built or refurbished before 2000 may contain it.
Do you use drones?
Yes, where it is applicable. 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.
How much does electronic leak detection cost?
Each roof is quoted on its size and build-up. Tell us about the roof and where it leaks, and ring 07833 053749 or send us an email for a quote.
What happens next?
The report comes by email, and you decide the next step: raise it with a seller, send it to an insurer, brief a roofer or share it with a managing agent.
How soon will I get the report?
It depends on the package: the Basic Survey report arrives within 48 hours, the Standard Survey in 24 to 48 hours and the Premium Survey the same day. The report is emailed to you.