Greater London · London and the South East
Electronic leak detection in Chessington, Greater London
Know where you stand with the flat roof membrane before you spend money on it. Electronic leak detection in Chessington, with photographs and a clear written report.
- New membranes needing a check before handover
- Breaches hidden under paving or planting
- Punctures from foot traffic or tools
How the survey works
We’ll ask a few questions first, about the roof’s history, any leaks and past repairs. The inspection then takes a time that depends on the size of the roof and how it’s built, and we’ll give you a guide when quoting. In a London conversion, the way into the roof space is frequently from a communal landing or the top flat. Where that’s the case, access needs agreeing with whoever controls that landing. Everything else is planned around the building, not the postcode.
- 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.
- Each breach found is located and recorded.
- The report is sent for your roofer to act on.
Getting ready for the survey
- Keep pets out of the way during the survey
- Point out any leaks or damp patches
- Tell us where we can park nearby
How to book
To book a survey, phone 07833 053749 or use the contact form with the address and what you’d like to know about the roof. You’ll know the price before anything is booked.
Related advice
How electronic leak detection works in Chessington
Green roofs, ballasted roofs and roofs under paving are harder to test. What sits on the membrane can affect which method will work and parts may need to be lifted. We talk this through before we quote. Drawings or details of the roof’s layers are useful because they show what’s under the surface. We’ll tell you if the roof cannot be tested. We survey roof terraces and balconies, flat roof membranes and commercial flat roofs, and common reasons people get in touch are leaks under green or ballasted roofs and damage from equipment installers.
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. Which one is on a roof in Chessington shapes how it’s checked. Many older flat roofs are felt or asphalt, and many newer ones EPDM rubber or GRP.
The report records the flat roof membrane as we found it on the day. It’s useful right away, and a good reference for later, such as when you want to compare after future work.
- Location
- Chessington (KT9, KT19, KT6)
- Wider area
- Greater London
- Cost
- Quoted for your roof
- Your report
- Written, with photos, emailed to you
- Appointments
- Monday to Sunday, daytime
- Insurance
- Professional indemnity and public liability
- Call
- 07833 053749
- Last updated
- 27 October 2026
Before and after the survey
A little preparation and a few simple habits help, both for the survey and for the roof itself. Our tips:
- Record dates and spots where water appears
- Don’t let outlets block
- Find the breach before more patching
- Use boards when working on the roof
Wet insulation may need attention after a leak. Your roofer can advise on that, and moisture readings can help.
Act on leaks quickly. Water under a membrane can spread.
For landlords and managing agents
If you own several properties, surveys can be booked for more than one address. To discuss a number of properties, call 07833 053749 or use the contact form.
Shared roofs need a little more planning: access has to be agreed with whoever owns or manages the building. Mention it when you get in touch and we’ll plan the survey around it.
Common questions in Chessington
Is parking a problem for a survey in Chessington?
In much of London, parking needs planning: a visitor permit or a bay close to the door helps a lot, so mention what’s available when you book.
Do you carry out roof surveys in Chessington?
Yes. We survey roofs across London and the South East, and Chessington is part of that. Just phone 07833 053749 or drop us an email and tell us about the property, and we will talk through which survey suits.
What’s in the report?
You get our findings in writing, part by part, with photos. The most urgent items are made clear.
Can you give me structural calculations?
No. We’re roof surveyors, not structural engineers. If we see signs that need an engineer’s opinion, we will recommend one.
Can every flat roof be tested?
Not every roof is suitable. Certain membranes are conductive and some roofs lack the layer the test needs. If your roof won’t work, we’ll say so at the start.
Which method do you use?
The method is chosen to suit the roof. Low-voltage testing typically needs a wet surface and high-voltage methods need the membrane dry and exposed.
Is this an asbestos survey?
No. We can flag materials that might contain asbestos, but confirming it is a job for a specialist asbestos surveyor. Buildings built or refurbished before 2000 may contain it.
Do you need electronic leak detection in Chessington?
Other trades on the roof can puncture the waterproofing. Engineers fitting equipment, solar panels or aerials may leave damage behind.
Look out for signs like these:
- Damage from equipment installers
- Waterproofing to test before it is covered
- Stains far from any visible defect
- Leaks at pipes, outlets or fixings
For landlords with property near Chessington North station, flat roofs over rear additions and dormers in rented property are worth checking between tenancies.
Choosing a roof surveyor
- Is there a chance to talk the report through?
- How they’ll see the roof: from ground level, the loft, the roof or by drone
- When you’ll get the report
- Will they check the loft as well as the outside?
Different roofs, different checks
Liquid-applied waterproofing
Liquid waterproofing has no laps, but can still have thin spots or holes. Suitability for ELD depends on the system.
Green and ballasted roofs
Some layers may need lifting for testing. We explain what’s needed when we quote.
Flat and commercial roofs around Chessington
Historic houses like Fitznells Manor, about 2.2 miles east, show how far back building in the area around Chessington goes. Older roofs in the wider area can hide decades of patch repairs, so the detail matters. 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. Alongside them, flat-roofed extensions, dormers, garages and commercial units are common almost everywhere.
For an older house near a landmark such as Church of St Mary the Virgin, flat-roofed rear additions and dormers added over the years are worth checking. Controlled parking zones are common in London, so mention any permit rules for Chessington.
Chessington is about 2 miles north-west of Epsom, in Greater London. From houses to flats and shops in Chessington, the roof can be surveyed. Chessington is one of the towns and villages in Greater London where we work. For surveys nearby, see our London page.
Electronic leak detection in KT9, KT19 and KT6 work the same way as everywhere else we cover. Whether your property is on Elm Road, Cox Lane and Moor Lane or a nearby road, we can survey it. Main roads around Chessington include the A243, which makes travel easy. If you’re just outside Chessington, we cover Horton (1 mile south), Old Malden (2 miles north-east), Tolworth (2 miles north-east), Surbiton (2 miles north) and Worcester Park (2 miles east). Within a short drive, we also cover London (13 miles north-east), City of Westminster (12 miles north-east), Marylebone (13 miles north-east), Kensington (10 miles north-east), St Pancras (14 miles north-east) and Shoreditch (15 miles north-east).
Near you in Chessington
Locally, jobs take us to homes and businesses close to Shrewsbury House School, Chessington Community College and Horton Country Park. Chessington has its own railway station: Chessington North station. Well-known places in the area include Tolworth Hospital (1.2 miles north-east) and Chessington Castle Hill (0.5 miles south-east). For a walk, there’s Kingston Hill Road area and Bonesgate Open Space.
Should I look at the roof myself first?
Look up at the roof after a storm, from ground level: pieces of tile or slate on the ground, a gap in the ridge or a lifted flashing are all worth noting. Don’t go up yourself.
Inside, the loft is a good place to look, with care. Use a torch and stay on the joists or boards, checking for stains, damp wood or chinks of daylight.