Surrey · London and the South East
West Horsley Electronic Leak Detection
Electronic leak detection to pinpoint holes in flat roof membranes across West Horsley, using drones and thermal imaging where it applies. Get in touch for a price.
- Leaks through a flat roof with no obvious cause
- Leaking laps in the waterproofing
- Leaks that return after repairs
How the survey changes by roof type
Single-ply membranes
Some single-ply membranes suit electronic testing well but it depends on the product and layers.
Inverted and paved roofs
Inverted roofs have the insulation on top of the waterproofing and that changes how testing works.
How electronic leak detection works in West Horsley
ELD finds breaches in the membrane but not every way water gets in. Water coming through walls, copings, rooflights or plumbing will not show on the test. We will tell you if we think the leak is coming from somewhere else. 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. We survey liquid-applied waterproofing, green roofs and flat roof membranes, and people most often book us about holes around roof penetrations and holes left by work on the roof.
Around West Horsley, many homes have a garden room, garage or outbuilding with a flat roof. They’re rarely looked at until something gets wet. It’s worth mentioning them when booking, so the visit can include them. Felt, rubber and GRP coverings on garages and outbuildings age in just the same way as the main roof’s.
What you get is a clear record of the flat roof membrane on the day we saw it. That makes it useful now and a handy reference later, for instance when you want to check whether anything has changed.
- Location
- West Horsley (KT24, GU23)
- Region
- Surrey
- Price
- Quoted for your roof
- Your report
- A written report with photos, by email
- Survey days
- Weekdays, Saturdays and Sundays
- Insured
- PI and public liability insurance
- Call
- 07833 053749
- Updated
- 27 October 2026
How it works
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, with the construction of the roof playing a part too. You’re welcome to ask questions while we’re there. A visit to a smaller place like West Horsley is no different on the day: we look from the ground, from windows, from the loft and from the roof where it’s safe. It helps to show us anything you’ve already noticed.
- First, we confirm which roof areas are included.
- We get the roof ready for testing.
- 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.
How to prepare
- Let us know about parking near the property
- Leave side gates unlocked
- Jot down any questions you want answered
Arrange a survey
We confirm the price for your survey before booking, so you know where you stand. Electronic leak detection is quoted for your roof, because the method depends on the roof. For a price for your roof, ring 07833 053749 or email us.
Read more
What a survey costs
All our prices include VAT. What changes the price is:
- Whether thermal imaging or a drone is needed
- House, block, shop or office
- How tall the building is and how easy the roof is to see
- The size of the roof
For a price for your roof in West Horsley, phone 07833 053749 or email us and let us know about the roof. The price is agreed before a date is set.
Helping us price your survey
The more you let us know, the easier it is to price the survey. When you contact us, tell us:
- Access details, such as a loft hatch or a shared roof
- Where the property is, with the postcode
- The type of building and roof, such as pitched or flat
- Why you want a survey: buying, a leak, a storm or new work
Getting a price is simple: just phone 07833 053749 or use the contact form, let us know about the property and we will explain which survey suits. The price is agreed up front.
Leave it or get it looked at?
Leaks left running can wet the insulation and deck. Finding the breach sooner limits that. Homes in smaller places like West Horsley can face more weather, so a loose ridge or verge soon lets rain in. Each storm lifts it a little further.
The cost of a survey depends on the roof: how big it is, how high it is, the number of separate roofs and how safely it can be seen. Electronic leak detection is quoted for your roof, because the method depends on the roof.
Why us?
- An independent look at the roof
- 98% of clients satisfied
- We hold a CAA Flyer ID and Operator ID
- Professional indemnity and public liability insurance
Read our cost guide and two real surveys.
West Horsley questions
Is West Horsley in the area you cover?
Yes, West Horsley is within the area we cover. We survey roofs across London and South East England. Just ring 07833 053749 or drop us an email and let us know about the property.
How do I find out if my home in West Horsley is listed?
The council and Historic England’s list are the places to check. It is worth checking before planning roof work, as both can affect what’s allowed.
Will I get photos?
Yes, every report has them. Each finding is shown in a picture where possible, which makes the report easy to follow.
Can you inspect my roof with a drone?
Yes, where it’s applicable. Whether we can fly on the day depends on the weather and the airspace rules. We’re a CAA-registered drone operator.
Does ELD work under paving or planting?
In some cases. It depends on the build-up and the layers above the membrane, and some may need lifting. We’ll discuss it before we quote.
What does the report include?
You get our findings in writing, part by part, with photos. Points are put in order of urgency where relevant.
What happens after the survey?
You’ll receive the report 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.
Tips that help
These tips come from what we see on roofs every week:
- Use boards when working on the roof
- Keep outlets clear of debris
- Don’t keep patching the same spot
- Get leaks traced quickly
You receive a report showing where each breach was found, with photos. Pass it to your roofer to repair the breach points.
Ask trades working on the roof to protect the membrane when fitting equipment. Check the roof after they’ve finished.
When to book a survey in West Horsley
Repeated leaks after repairs suggest the real breach hasn’t been found. Electronic testing helps pinpoint it.
Here are some of the things we see often:
- Leaking laps in the waterproofing
- Leaks through a flat roof with no obvious cause
- Breaches hidden under paving or planting
- Waterproofing to test before it’s covered
Take an older house close to Church of St Mary the Virgin: later flat-roofed additions are common on older houses, and their edges and upstands often show the first signs of wear.
Before booking anyone
- Will the report include photos?
- What they won’t be able to tell you
- How they plan to inspect the roof safely
- Their track record with similar roofs
Flat roofs in West Horsley
Historic houses like Hatchlands Park, about 1.6 miles south-west, show how far back building in the area around West Horsley goes. On older houses around here, roofs often carry the marks of earlier repairs, from replaced slates to new lead, and the council can say whether a home is in a conservation area. Handmade clay tiles and tile-hung walls are typical of Surrey’s older houses. A few of Surrey’s oldest buildings have heavy Horsham stone slab roofs. Alongside them, flat-roofed extensions, dormers, garages and commercial units are common almost everywhere.
If you own a rental within reach of Horsley station, flat roofs over rear additions and dormers in rented property are worth checking between tenancies. Take a building like The Raleigh School: a large flat roof with a good many outlets and rooflights has many places where a membrane can fail.
West Horsley is about 6 miles west of Leatherhead, in Surrey. In West Horsley, as across Surrey, every roof gets the same careful survey. Our area takes in places right across Surrey, from the larger towns to small villages. There is also a page for Guildford.
We cover every part of KT24 and GU23 for electronic leak detection. We cover properties on The Street, Woodside and Long Reach and the roads around them. Being close to the A246 and B2039, West Horsley is easy for us to reach. We also cover East Horsley (1 mile east), Ockham (2 miles north), East Clandon (2 miles south-west), Effingham (2 miles east) and Ripley (3 miles north-west). Larger places within reach include Guildford (6 miles west), Woking (6 miles north-west), Camberley (13 miles west), Epsom (9 miles north-east), Horley (14 miles south-east) and Redhill (13 miles east).
Local landmarks in West Horsley
Around West Horsley, our work takes us to homes and buildings near Howard of Effingham School, The Barley Mow pub and The Forest and the Highlands. West Horsley’s nearest station is Horsley station, about 0.7 miles east of the centre. A little further out are Woking Community Hospital (5.2 miles north-west) and Send and Ripley History Society Museum (2.4 miles north-west). Not far away are St Martha's Hill and Papercourt Marshes.