Surrey · London and the South East
Fernhill Electronic Leak Detection
Electronic leak detection for homes and businesses in Fernhill. More than 5,000 surveys completed across London and South East England.
- Leaks through a flat roof with no obvious cause
- Stains far from any visible defect
- Leaking laps in the waterproofing
How it works
After the inspection, everything we found is written up as a photo-illustrated written report, emailed to you. On timing, most surveys take longer on a large roof than a small one, and the build-up of the roof makes a difference too. Around Fernhill, older homes can have small or awkward roof spaces, so let us know about the loft hatch and any ladder. Only areas that can be reached safely are inspected.
- First, we confirm which roof areas are included.
- We get the roof ready for testing.
- We work across the roof with the test equipment.
- We mark the breach locations in our records.
- You receive the results to pass to your roofer.
Before we arrive
- Note where any stains or damp appear
- Keep pets inside or away from the areas we are looking at
- Tell us where we can park nearby
Getting a price
Every survey is priced before it is booked, so you know the cost up front. We quote electronic leak detection for each roof, as the method and time depend on the roof. For a price for your roof, ring 07833 053749 or use the contact form.
Related advice
Electronic leak detection in Fernhill: what you get
Water can travel under a flat roof membrane before it shows inside. So the stain inside rarely sits under the hole. ELD tests the waterproofing directly and locates the breach. It is testing only and leave the repair to 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. We survey green roofs, liquid-applied waterproofing and single-ply roofs, and people most frequently book us about leaks through a flat roof with no obvious cause and patched roofs that still leak.
Flat roofs on exposed homes in small places like Fernhill take more wind and rain, so edges, upstands and laps take a beating. Felt roofs, which often last around 15–20 years, typically show it first. Rubber and GRP last longer, though trims and joints still need a look. Exposed edges are usually the first part of a flat roof to go.
Every survey ends with a written report, with photographs, emailed to you. It explains the condition of the flat roof membrane, the defects we found and what we recommend.
- Where
- Fernhill (RH6)
- Region
- Surrey
- Price
- Quoted for your roof
- Your report
- Written, with photos, emailed to you
- Appointments
- Weekdays and weekends
- Cover
- Professional indemnity and public liability
- Telephone
- 07833 053749
- Page updated
- 27 October 2026
What happens if roof problems are left?
Patching where you think the leak is frequently misses it. ELD shows the actual breach points. Matching old materials, such as handmade tiles or stone slates, can take time to source. Spotting a problem early leaves room to find them.
Larger roofs, taller buildings and commercial roofs take longer, so they’re priced to match. You’ll know the figure before booking.
What you get with us
- Insured for professional indemnity and public liability
- A report with photographs
- 20+ years’ experience
- More than 5,000 surveys completed
Take a look at how roof surveys are priced and two real surveys.
Nearby places to Fernhill
Other services in Fernhill
Prices for electronic leak detection in Fernhill
All our prices include VAT. The things that change the price are:
- House, block, shop or office
- How many separate roofs there are, such as extensions, dormers and garages
- The shape of the roof and its details
- The height of the building and how the roof can be seen safely
To find out what your survey will cost, ring 07833 053749 or use the contact form and let us know about the roof. We will confirm the figure before booking.
What to tell us when you contact us
A little information up front helps. It helps to include:
- The reason for the survey, such as buying, a leak or storm damage
- Any photos you have, taken from ground level or a window
- Where the property is, with the postcode
- Anything about access we should know
Booking is simple: just ring 07833 053749 or drop us an email, let us know about the property and we will recommend the right survey. We confirm the price before anything is booked.
FAQs for Fernhill
Is my home in Fernhill 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. It matters most if you are planning to re-roof in a different material.
Do you cover smaller places like Fernhill?
Yes, Fernhill is covered. We survey roofs across London and South East England, from towns to the smallest villages. Longer journeys are simply planned ahead of time.
How do I arrange electronic leak detection in Fernhill?
To arrange a survey, ring 07833 053749 or email us with the address, the type of property and what’s prompted the survey. We’ll confirm the price and find a day that suits.
How long does electronic leak detection take?
It depends on the size of the roof and its build-up. You will know roughly how long before we start.
Does electronic leak detection work on all membranes?
Not every roof is suitable. Some membranes conduct electricity and some roofs lack the layer the test needs. If your roof will not work, we’ll say so at the start.
Can you survey at the weekend?
We carry out surveys on weekdays, Saturdays and Sundays. To find a day that suits you, call 07833 053749 or send us an email.
What happens next?
We email you the written report with photographs and recommendations. You can use it to talk to a seller, an insurer, a roofer or a managing agent, whichever applies.
Before and after the survey
Some practical points come up on survey after survey. They’re worth knowing whatever the roof:
- Test new membranes before covering them
- Use boards when working on the roof
- Clear flat roof outlets regularly
- Keep foot traffic on flat roofs to a minimum
The report records each breach location with photos. Pass it to your roofer to repair the breach points.
Act on leaks quickly. The longer water gets in, the more insulation and decking can be affected.
Local flat roofs in Fernhill
In Surrey, older roofs are often handmade clay tile, with tile-hanging on many upper walls. Horsham stone slab roofs survive on some old buildings in Surrey. Mixed in with those pitched roofs are lots of flat ones, over rear extensions, dormers, garages and shops. Before planning roof work on an older home, find out whether it is listed or in a conservation area. Listed building consent covers changes to a listed building’s special interest, and an Article 4 direction can bring extra controls in a conservation area.
Anyone responsible for a site like Oakwood School will know that schools and public buildings often have big flat roofs, and their outlets and upstands need regular checks. If you run a business near County Mall, the flat roofs over shops and commercial units are worth checking before a leak, not after. For an older house near a landmark such as Church of St Bartholomew, any flat roof added at the back or on a dormer is likely to be far younger, and less durable, than the main roof.
Fernhill is about 2 miles south-east of Horley, in Surrey. From houses to flats and shops in Fernhill, we can survey the roof. Our Surrey coverage includes Fernhill.
Every address in RH6 is within our area for electronic leak detection, from the main roads to the quietest streets. Local streets include Peeks Brook Lane and Donkey Lane, all of which we cover. Nearby, we also carry out electronic leak detection in Burstow (1 mile east), Shipley Bridge (1 mile south), Tinsley Green (1 mile south-west), Keeper's Corner (1 mile east) and Copthorne (1 mile south). Within a short drive, we also cover Epsom (14 miles north-west), Redhill (6 miles north), Ewell (15 miles north), Reigate (6 miles north-west), Caterham (9 miles north) and Dorking (10 miles north-west).
Near you in Fernhill
Around Fernhill, our work takes us to homes and buildings near The Shipley Bridge pub. For rail, the closest station is Gatwick Airport station, about 1 mile west. Nearby you will also find County Mall (3.6 miles south-west) and Langley Green Hospital (2.9 miles south-west). Open spaces near Fernhill include Hedgecourt Lake.
What we look for on each type of roof
Liquid-applied waterproofing
Liquid waterproofing has no laps, but can still have thin spots or holes. Whether ELD works depends on the coating and build-up.
EPDM rubber roofs
Certain rubber membranes are conductive, which can rule out some methods. We will say if the test will not work.
When you need someone else
Some things can’t be seen without opening up the roof, so a survey has limits:
- Fixing the holes we find
- The extent of water in the insulation
- Some conductive membranes
Not sure which survey suits your roof? You can call 07833 053749 or use the contact form and we’ll tell you before booking. What a survey covers and doesn’t.
What this survey covers
- Flat roof membranes
- Liquid-applied waterproofing
- Roof terraces and balconies
- Green roofs
- Single-ply roofs
- Commercial flat roofs