Surrey · London and the South East
Holmwood Corner Electronic Leak Detection
Independent electronic leak detection in Holmwood Corner. More than 5,000 surveys completed across London and South East England.
- Holes left by work on the roof
- New roofs to check before paving or planting
- Leaks through a flat roof with no obvious cause
Electronic leak detection in Holmwood Corner
ELD is a way of pinpointing breaches in a flat roof’s waterproofing membrane. It uses a small electrical current which can only get through the membrane at a breach. It can find holes too small to spot by eye, so your roofer can repair them. The results come in a report with photos. If you’ve noticed water coming in under a flat roof and repairs that haven’t stopped the leak, we can find out what’s behind it, whatever the roof.
Older buildings in small places like Holmwood Corner may be listed or in a conservation area, and that can affect how an extension roof or dormer is re-covered. Check with the council before planning any change of material. Knowing the roof’s condition is the starting point. Listed building consent is needed for changes that affect a listed building’s special interest.
Pictures do a lot of the work in our reports, so you can see each defect rather than just read about it. Anything out of sight on the day is listed as such.

- Place
- Holmwood Corner (RH5)
- Wider area
- Surrey
- Price
- Quoted for your roof
- Your report
- A written report with photos, by email
- When we survey
- Monday to Sunday, daytime
- Cover
- PI and public liability insurance
- Telephone
- 07833 053749
- Last updated
- 27 October 2026
Electronic leak detection in Holmwood Corner: local notes
Older buildings may be listed or sit in a conservation area. Historic England’s list shows listed buildings, and the council can say whether a street is in a conservation area. In either case, a change of roofing material may need consent. Many older homes in Surrey have handmade clay tiles and tile-hung upper walls. A few of Surrey’s oldest buildings have heavy Horsham stone slab roofs. Flat roofs on extensions, dormers, garages and business units are found alongside them almost everywhere.
If you own a rental within reach of Holmwood 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 Church of St Mary Magdalene, the flat roofs on later extensions tend to wear out long before the main roof. For site and facilities teams at buildings like The Weald CofE Primary School, schools and public buildings frequently have big flat roofs, and their outlets and upstands need regular checks.
Holmwood Corner is about 3 miles south of Dorking, in Surrey. If you are in Holmwood Corner, booking works exactly as it does anywhere else: a call or an email, a price, then a date. We cover towns and villages across Surrey. We also survey roofs in Crawley.
We work across RH5 for electronic leak detection and the streets around it. Nearby, we also carry out electronic leak detection in South Holmwood (1 mile north-west), Beare Green (1 mile south), Coldharbour (2 miles west), Capel (3 miles south) and Friday Street (3 miles west). Further out, we also cover Guildford (12 miles west), Woking (14 miles north-west), Epsom (11 miles north), Horley (7 miles east), Redhill (7 miles north-east) and Ewell (12 miles north).
What’s near Holmwood Corner
Typical jobs here are in homes near Inholms Clay Pit. There is a railway station in Holmwood Corner itself: Holmwood station. Well-known places in the area include Mesolithic Museum (3.8 miles west) and Betchworth Castle (3.6 miles north). For a walk, there is Leith Hill and Vann Lake.
Honest limits
It’s useful to know what a survey will not do before booking:
- Moisture spread under the membrane
- Sections we can’t safely access
- Leaks from plumbing or windows
If in doubt, phone 07833 053749 or use the contact form and we will point you to the right survey. The full list of what we check.
Roofs we survey in Holmwood Corner
- Liquid-applied waterproofing
- Green roofs
- Roof terraces and balconies
- Flat roof membranes
- Commercial flat roofs
- Single-ply roofs
Why get it checked now?
A visual inspection can miss tiny holes. ELD picks up breaches a visual check might miss where the roof suits it. In a small place like Holmwood Corner, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
All our prices include VAT. Electronic leak detection is quoted for your roof, because the method depends on the roof. We confirm the exact price before booking.
What you get with us
- Drone and thermal imaging surveys available
- 5,000+ roofs surveyed
- 20+ years’ experience
- An independent look at the roof
Your questions about electronic leak detection in Holmwood Corner
Is Holmwood Corner in the area you cover?
Yes. We cover the whole of London and South East England, and Holmwood Corner is part of that. You can ring 07833 053749 or email us with the address and some details, and we’ll talk through which survey suits.
Do you cover smaller places like Holmwood Corner?
Yes, smaller places are covered as well as towns. We cover the whole of London and South East England. Just mention lanes, gates or anything else about the route as you book.
Will I get photos?
Yes. Photographs are taken throughout the survey, and the report uses them to show each finding.
Does ELD work under paving or planting?
Sometimes. The layers on top and the build-up below decide it, and some may need lifting. We’ll discuss it before we quote.
What insurance do you have?
We hold professional indemnity and public liability insurance.
Do you need to get into the loft?
Where it’s relevant to the survey and there’s safe access, yes. A clear path to the hatch helps, and if the loft cannot be reached safely, the report says so.
Can you inspect my roof with a drone?
Yes, where it is applicable. We hold a CAA Flyer ID and Operator ID and fly a drone under 250g, and every flight depends on the airspace and the weather.
Places near Holmwood Corner
Other services in Holmwood Corner
How the survey works
Where it is relevant and can be reached safely, the roof space is checked as well as the outside. Inside, we look for staining, damp, gaps and signs of movement, as far as the space allows. All in, the survey normally takes a time that depends on the membrane area and the build-up, and we’ll give you a guide when quoting. Older rural homes like those around Holmwood Corner can have a main roof, lower lean-to roofs and outbuildings all joined together. We work round each section in turn, from the safest viewpoints, and anything we cannot see is noted.
- First, you tell us about the roof build-up and where water is showing.
- The roof is assessed to see if electronic testing will work on it.
- The method depends on the membrane and what sits above and below it.
- The roof is tested and any breaches are located.
- You get a report showing where each breach is, for your roofer to repair.
Getting ready for the survey
- Point out any leaks or damp patches
- Make a note of anything you’d like us to look at
- For a flat or shared roof, check access with whoever owns or manages the building
How to book
Surveys can be booked for weekdays, Saturdays or Sundays. To arrange a day that suits you, ring 07833 053749 or send us an email with the address and the days you’d prefer.
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Practical tips
Nothing here needs a ladder. A few suggestions:
- Get leaks traced quickly
- Avoid repeated repairs without finding the cause
- Clear flat roof outlets regularly
- Keep foot traffic on flat roofs to a minimum
Where the evidence points to walls, copings or rooflights, we will note it, with a suggestion of what to check next.
Keep people off the flat roof unless they need to be there. Feet and dropped tools are a common cause of holes.
How we price electronic leak detection
To price your survey, we look at:
- Building height and the viewpoints available
- Features like valleys, chimneys, dormers and parapets
- The use of thermal imaging or a drone
- The size of the roof
The cost of a survey depends on the roof: how big it is, how high it is, the number of separate roofs 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.
Helping us price your survey
These details help when you get in touch:
- Anything about access we should know
- Any deadline, like an exchange date
- The property’s address and postcode
- What’s prompted the survey
We confirm the exact price before you book, so you know the cost up front. Electronic leak detection is quoted for your roof, because the method depends on the roof. To book, phone 07833 053749 or use the contact form.
Checking the roof from ground level
The one thing to avoid is getting up close. Slates, tiles, flat roofs and rooflights can give way, and falls from height are serious. That part is for a survey, using safe viewpoints and a drone where it applies.
After heavy rain, check ceilings and the tops of walls for new stains. Photograph them and note the date.