Surrey · London and the South East
Wonersh Electronic Leak Detection
Electronic leak detection across Wonersh, with over 20 years’ experience behind it. Every survey ends with a written report and photographs.
- Waterproofing to test before it is covered
- Failed seams and laps
- Leaks showing away from the breach
How electronic leak detection works in Wonersh
Some flat roofs cannot be tested electronically. Some membranes conduct electricity themselves, and some build-ups lack the layer the test needs below the membrane. We’ll say if ELD won’t work on your roof before any testing. Any details you have about the membrane and build-up help us decide, like drawings or specifications. It avoids arranging a test that cannot give results. Common reasons to book are damage from equipment installers and leaks at pipes, outlets or fixings, across single-ply roofs, liquid-applied waterproofing and roof terraces and balconies.
Somewhere as small as Wonersh, flat roofs tend to be on extensions, garages and converted outbuildings. They need the same care as any town roof: the covering, the edges, the upstands and where water drains away. We simply plan the journey and access ahead of time. Garages and outbuildings are easy to forget, so mention any you want included when you book.
Pictures do a lot of the work in our reports, because a photo of a cracked flashing says more than a paragraph. Anything out of sight on the day is listed as such.
- Place
- Wonersh (GU5)
- Wider area
- Surrey
- Prices
- Quoted for your roof
- Your report
- Written, with photos, emailed to you
- When we survey
- Monday to Sunday, daytime
- Insurance
- PI and public liability insurance
- Phone
- 07833 053749
- Updated
- 27 October 2026
What happens if roof problems are left?
Leaks left running can wet the insulation and deck. Locating it early helps limit the damage. In a place like Wonersh, a barn or garage roof left to fail puts whatever is inside at risk. It is worth including them in a survey before a winter does the damage.
For a price for your roof in Wonersh, ring 07833 053749 or drop us an email and let us know about the roof. The price is agreed before a date is set.
What you get with us
- Thermal imaging and drone inspection where they help
- Weekday and weekend surveys
- Insured for professional indemnity and public liability
- Independent findings on the roof’s condition
See what a roof survey costs or what we found on two real jobs.
Rented homes, blocks and businesses
Any of our surveys can be booked by landlords, agents and building managers in Wonersh. For a price for a let property or a block, phone 07833 053749 or use the contact form.
Managing agents and residents’ management companies use roof surveys to plan maintenance. The report sets out what needs attention now and what can wait, which helps with budgets and planning.
Common roof problems in Wonersh
Flat roof membranes can be punctured by foot traffic, dropped tools or debris. Some are too small to see, but still let water through.
Problems we come across often include:
- Damage from equipment installers
- Water coming in under a flat roof
- Leaks through a covered membrane
- Holes around roof penetrations
If you look after a building such as Bramley CofE Aided Infant School and Nursery, a large flat roof with a good many outlets and rooflights has many places where a membrane can fail.
Before booking any roof surveyor
- What exactly goes into their report
- What’s outside the scope of the survey
- Do they have a CAA Flyer ID and Operator ID for drone work?
- What follow-up you get after the report
Flat and commercial roofs around Wonersh
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. Flat roofs on extensions, dormers, garages and business units are found alongside them almost everywhere. The wider area around Wonersh has a long history of building, with Chilworth Manor about 1.7 miles north. Period homes nearby can have lead valleys, tall chimneys and a patchwork of past repairs.
If you let a flat or house near Chilworth station, a flat roof over a rented flat is easy to forget until the tenant reports a leak. If your home is one of the older ones in the streets near Wonersh United Reformed Church, later flat-roofed additions are common on older houses, and their edges and upstands often show the first signs of wear.
Wonersh is about 4 miles south of Guildford, in Surrey. In Wonersh, as across Surrey, every roof gets the same careful survey. Across Surrey, we cover Wonersh and the places around it.
Here we cover the GU5 postcode area for electronic leak detection. We offer electronic leak detection to properties on The Street, Woodyers Close and The Close and the roads around them. Neighbouring places we cover for electronic leak detection include Bramley (1 mile west), Shamley Green (1 mile south-east), Birtley Green (1 mile south), Stroud Common (2 miles south-east) and Grafham (2 miles south). Within a short drive, we also cover Guildford (4 miles north), Woking (8 miles north), Camberley (12 miles north-west), Epsom (15 miles north-east), Farnham (11 miles west) and Reigate (15 miles east).
Near you in Wonersh
Around Wonersh, our work takes us to homes and buildings near Shalford Mill, Broadwater School and The Grantley Arms Public House and the streets around them. The nearest railway station is Chilworth station, about 1.5 miles north-east. Nearby you’ll also find Surrey Police Museum (2.6 miles north-west) and Guildford Castle (2.9 miles north-west). Green spaces nearby include St Martha's Hill and Silent Pool.
How we price electronic leak detection
Every roof is different, so prices are confirmed before booking. These are the things that affect it:
- Any need for thermal images or a drone flight
- Height and safe access
- How many separate roofs there are, such as extensions, dormers and garages
- The roof’s overall size
The cost of a survey depends on the roof: its size, its height, how many sections it has and how it can be reached and seen safely. We quote electronic leak detection for each roof, as the method and time depend on the roof.
What we need to know
To price your survey accurately, we will ask about:
- Dates you are working to, such as exchange
- Any photos you have, taken from the ground or a window
- Whether there’s a loft hatch, a shared roof or tricky access
- What’s prompted the survey
To arrange a survey, call 07833 053749 or email us and let us know the address and what’s prompted the survey. You’ll know the price before anything is booked.
Towns and villages near Wonersh
What else we do in Wonersh
Practical tips
Here are a few things we’d tell any owner, before and after a survey:
- Act on new leaks promptly
- Make sure trades protect the waterproofing
- Don’t let outlets block
- Keep foot traffic on flat roofs to a minimum
After your roofer repairs the breaches, a retest can confirm them if the build-up allows.
ELD before paving, ballast or planting goes on is worth considering. It is easier to find holes before more layers are added.
How it works
You don’t need to do much on the day. Show us any stains, drips or problem areas you know about, and we’ll get on with the inspection. A typical survey takes a length of time set by the membrane area and the build-up, which we set out in the quote. In a hamlet or village like Wonersh, a postcode does not always lead to the right gate, so a few directions are welcome. The visit itself is the same as anywhere else.
- We start with what you know about the roof and the leak.
- We check whether the membrane and build-up suit ELD.
- We choose a low-voltage or high-voltage method to match the roof.
- The membrane is tested and breaches are found.
- A report with photographs shows where each breach is.
Before we arrive
- Show us where any leaks or stains appear
- Clear the way to the loft hatch
- Keep pets in another room
How to book
Surveys can be booked for weekdays, Saturdays or Sundays. To arrange a day that suits you, ring 07833 053749 or drop us an email with the address and the days you’d prefer.
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FAQs for Wonersh
Do you carry out roof surveys in Wonersh?
Yes. We cover the whole of London and South East England, and Wonersh is part of that. Just ring 07833 053749 or send us an email and let us know about the property, and we’ll talk through which survey suits.
Is my home in Wonersh listed or in a conservation area?
You can check whether a building is listed on Historic England’s list, and your council can tell you if it is in a conservation area. If a home is listed, changes that affect its special interest need listed building consent, and in a conservation area re-roofing in different materials may need permission.
Do you test for asbestos?
No. Asbestos surveys and sampling aren’t something we do. The report may flag materials that could contain asbestos on buildings built or refurbished before 2000, with a recommendation to have a specialist asbestos surveyor check before it’s disturbed.
What’s the price of ELD?
Electronic leak detection is quoted for your roof, because the method depends on the roof. The price depends on the roof’s size and build-up. To get a quote, ring 07833 053749 or use the contact form.
How do you choose the testing method?
The roof decides the method. We will explain why when we quote.
Will you walk on the roof?
Only where it is safe to do so. We look at everything that can be seen safely: from the ground, from windows and vantage points, from the loft space, from the roof itself where safe and by drone where it applies. The report says if anything couldn’t be seen.
What is electronic leak detection?
ELD passes a small electrical current across the roof to locate holes in the membrane. The current only gets through where the membrane is breached so we can pinpoint it.