Surrey · London and the South East
Ewell Electronic Leak Detection
Electronic leak detection to pinpoint holes in flat roof membranes for Ewell, from an experienced roof surveyor. Every survey comes with a written report and photos.
- Stains far from any visible defect
- Patched roofs that still leak
- Gaps at membrane joints
The survey, step by step
Time on site depends on the size and shape of the roof; as a rough guide, the survey takes longer on a large roof than a small one, and the build-up of the roof makes a difference too. If you have questions on the day, just ask. In Ewell, many roofs join a neighbour’s, so shared parts are looked at as far as they can be seen from your property. It helps to know about previous repairs, leaks or recent work, so time on site goes where it is needed.
- 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 photographs in a report for your roofer.
Getting ready for the survey
- Have any questions written down, so nothing gets missed
- Tell us about parking before the day
- Leave a clear route to the loft
Arrange a survey
We survey roofs on weekdays and at weekends. To arrange a day that suits you, call 07833 053749 or drop us an email with the address and the days you’d prefer.
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Electronic leak detection in Ewell
A leak in a flat roof often shows up a long way from where the water gets in. So the stain inside rarely sits under the hole. ELD tests the waterproofing directly and locates the breach. We test and report, and the repair is for your roofer. On a suitable roof, it takes the guesswork out of finding the hole. The results then follow in a written report with photos. If you are worried about stains far from any visible defect and new roofs to check before paving or planting, a survey will tell you what’s going on, whatever the roof.
In a town like Ewell, flat roofs are common on rear extensions, garages, porches and dormers. Many are felt, and newer ones may be EPDM rubber or GRP. Ponding water, splits along the edges and lifting upstands are the usual warning signs. Standing water days after rain often shows a flat roof needs attention.
If any part of the flat roof membrane couldn’t be seen safely, we say so in the report. You will know exactly what was inspected and what wasn’t.
- Place
- Ewell (KT19, KT17, SM2)
- Region
- Surrey
- Prices
- Quoted for your roof
- Report
- Written, with photos, emailed to you
- Survey days
- Monday to Sunday, daytime
- Cover
- PI and public liability insurance
- Call
- 07833 053749
- Last updated
- 27 October 2026
When you need someone else
Without opening up the roof, some things stay hidden, so a survey has limits:
- Leaks from plumbing or windows
- Moisture spread under the membrane
- Some conductive membranes
If in doubt, phone 07833 053749 or drop us an email and we’ll point you to the right survey. What a survey covers and does not.
What this survey covers
- Green roofs
- Single-ply roofs
- Commercial flat roofs
- Flat roof membranes
- Liquid-applied waterproofing
- Roof terraces and balconies
What we look for on each type of roof
Inverted and paved roofs
Inverted roofs have the insulation on top of the waterproofing and that changes how testing works.
Green and ballasted roofs
Testing before planting or ballast goes on is simpler.
Landlords, agents and block managers in Ewell
Businesses and commercial landlords can book us too. Bigger roofs take more time, so they’re priced to suit.
Letting agents can arrange access with tenants, at a time agreed beforehand. Surveys run on weekdays and at weekends, which helps when tenants work during the week.
Towns and villages near Ewell
More services for Ewell
Checking the roof from the ground
Keep a simple record: when leaks happen, ground-level photos and any past roof work. Send it with your enquiry and it will help the survey.
Fresh stains on ceilings or walls after rain are worth noting. Take a photo and write down when you saw it, as it helps a surveyor trace the cause.
Common roof problems in Ewell
When the membrane is buried, holes can’t be seen at all. Electronic methods can help on some of these roofs, depending on the build-up.
These are some of the problems a survey can pick up:
- Waterproofing to test before it’s covered
- Patched roofs that still leak
- Damage from equipment installers
- Leaking laps in the waterproofing
If you run a business near The Ashley Centre, flat roofs over shops and units are easy to forget until water comes through a ceiling.
Questions to ask before you book
- Is there a chance to talk the report through?
- How they plan to inspect the roof safely
- Whether any drone flown is registered with the CAA
- What the survey won’t cover
What electronic leak detection looks like in Ewell
Many older homes in Surrey have handmade clay tiles and tile-hung upper walls. Some old buildings in Surrey and Sussex have Horsham stone slab roofs. Flat roofs fill the gaps in between, on extensions, garages, dormers and business premises. Historic houses such as Fitznells Manor, about 0.2 miles south-east, show how far back building in the area around Ewell goes. On older houses around here, roofs frequently carry the marks of earlier repairs, from replaced slates to new lead.
If you let a flat or house near Ewell West station, a flat roof over a rented flat is easy to forget until the tenant reports a leak. For an older house near a landmark such as St Mary's Church, later flat-roofed additions are common on older houses, and their edges and upstands frequently show the first signs of wear.
Ewell is about 10 miles south of Kensington, in Surrey. In Ewell, as across Surrey, every roof gets the same careful survey. Ewell is one of the places in Surrey where we work for electronic leak detection. There’s also a page for London.
Electronic leak detection in KT19, KT17 and SM2 are booked the same way as anywhere else. Whether your property is on London Road, High Street and Church Road or anywhere close by, we can help. Main roads around Ewell include the A24 and A232, so getting to you is simple. Neighbouring places we cover for electronic leak detection include Stoneleigh (1 mile north-east), Cuddington (1 mile east), Epsom (1 mile south-west), Worcester Park (1 mile north) and North Looe (1 mile south-east). Further out, we also cover Woking (14 miles west), Horley (13 miles south), Redhill (9 miles south-east), Egham (14 miles north-west), Reigate (8 miles south) and Walton-on-Thames (7 miles west). Ewell is one of the larger places we cover in Surrey.
What’s near Ewell
In Ewell, that means homes and buildings near Blenheim High School, King William IV Public House and Hogsmill LNR, among other places. Ewell has its own railway station: Ewell West station. A little further out are Chessington Castle Hill (1.6 miles west) and St. Ebba's Hospital (0.9 miles west). The countryside around Ewell includes Tolworth Court Farm Fields and The Lake.
Common questions in Ewell
Is my home in Ewell listed or in a conservation area?
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 Ewell in the area you cover?
We do. Every survey there gets the same written report with photos.
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. It may be present in buildings built or refurbished before 2000.
What’s the best way to book?
To book, phone 07833 053749 or use the contact form with the address, the type of property and what’s prompted the survey. We will confirm the price and find a day that suits.
Do you take photos of the roof?
Yes, every report has them. Pictures sit next to the findings they show, so you can see what we mean.
Can you survey at the weekend?
Visits run seven days a week in the daytime, which suits people who work during the week. Let us know your preferred days when booking.
Do you survey roofs on blocks of flats?
Yes. Shared roofs just need a little more planning, with the freeholder or managing agent. Let us know about it when you book and we’ll plan the survey around it.