Surrey · London and the South East
Betchworth Electronic Leak Detection
Electronic leak detection to pinpoint holes in flat roof membranes for Betchworth, from an experienced roof surveyor. You get a clear written report with photographs.
- Water coming in under a flat roof
- New membranes needing a check before handover
- Leaks at pipes, outlets or fixings
Checking the roof from the ground
During heavy rain, look at the gutters from the ground or a window. Overflowing water can be a sign of a blockage or a gutter that has dropped.
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.
Electronic leak detection for homes and businesses in Betchworth
There are different ELD methods. Low-voltage methods normally need a wet roof surface and high-voltage methods need the membrane dry and exposed. Which one suits depends on the membrane and the layers of the roof and we explain which we will use. We’ll say if your roof doesn’t suit either method at the outset. Typical surveys look at breaches around outlets and penetrations and repairs that haven’t stopped the leak, on roof terraces and balconies, commercial flat roofs and green roofs.
Older buildings in small places like Betchworth may be listed or in a conservation area, which can shape what a new flat roof may look like. If you’re planning work, check with the council first. Finding out what state the roof is in gives you the facts to plan with. Listed building consent is needed for changes that affect a listed building’s special interest.
You can share the report with anyone who needs it: your solicitor, the seller, your insurer, a roofer or the building’s managing agent.
- Where
- Betchworth (RH3)
- Wider area
- Surrey
- Price
- Quoted for your roof
- Report
- A written report with photos, by email
- When we survey
- Weekdays, Saturdays and Sundays
- Insurance
- PI and public liability insurance
- Telephone
- 07833 053749
- Updated
- 27 October 2026
What electronic leak detection does not cover
Some things can’t be seen without opening up the roof, and that sets some limits:
- Repairing the breaches (that is for your roofer)
- Water entering through details rather than the membrane
- Some conductive membranes
If you’re not sure which survey you need, call 07833 053749 or send us an email and we will give you a straight answer. What our survey covers.
What this survey covers
- Liquid-applied waterproofing
- Commercial flat roofs
- Flat roof membranes
- Roof terraces and balconies
- Single-ply roofs
- Green roofs
Roof by roof
EPDM rubber roofs
EPDM is a long-lasting flat roof membrane, but can still be punctured.
Liquid-applied waterproofing
Liquid-applied coatings form a seamless layer but holes and thin areas can occur. Whether ELD works depends on the coating and build-up.
Common questions in Betchworth
Is Betchworth in the area you cover?
Yes, Betchworth is within the area we cover. We work right across London and South East England. You can phone 07833 053749 or email us with the address and a few details.
How do I find out if my home in Betchworth is listed?
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.
How fast do I get the report?
Report times are set by the package. Basic is within 48 hours, Standard is 24–48 hours and Premium is the same day. Mention any deadline as you book.
What if it rains on the day?
It depends on the weather and the survey. Strong wind or a downpour can make access unsafe and ground a drone, so we’d move the date with you.
Do you survey roofs on blocks of flats?
Yes. Shared roofs just need a little more planning, with the building owner or managing agent. Mention it when you get in touch and we will plan the survey around it.
What’s in the report?
You get our findings in writing, part by part, with photos, finishing with recommendations. Points are put with the most urgent first where relevant.
Will you fly a drone over my roof?
Yes, where it is applicable. Our sub-250g drone is flown by a CAA-registered operator with a Flyer ID and Operator ID, and the airspace and weather are checked before every flight.
Practical tips
There is plenty you can do without going near the roof. Here’s what helps most:
- Check new waterproofing before handover
- Have roof specifications to hand
- Do not keep patching the same spot
- Keep a note of leaks after rain
If we think the leak isn’t coming through the membrane, the report says so, so other causes can be checked.
Consider testing a new membrane before it is covered. Finding breaches is simpler at that stage.
Nearby places to Betchworth
Also in Betchworth
Landlords, agents and block managers in Betchworth
Freeholders and residents’ companies use a roof report to plan and budget, with the most urgent items set out first.
Letting agents often book on a landlord’s behalf. We agree a time with the tenant beforehand.
Local flat roofs in Betchworth
Historic houses like Polesden Lacey, about 4.7 miles west, show how far back building in the area around Betchworth goes. Older homes in the wider area frequently have features worth a closer look, like lead valleys, tall stacks and roofs that have been patched over the years, and a listed home or one in a conservation area may need consent for changes of material. 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. Next to the main roofs there’s typically a flat roof somewhere, whether on an extension, a garage or a commercial unit.
If you look after a building like North Downs Primary School, a large flat roof with plenty of outlets and rooflights has many places where a membrane can fail. For landlords with property near Betchworth station, flat roofs on let property tend to be checked only when they fail, which is the costly way round. For an older house near a landmark like Church of St Michael, any flat roof added at the back or on a dormer is likely to be far younger, and less durable, than the main roof.
Betchworth is about 3 miles east of Dorking, in Surrey. We cover Betchworth and the rest of Surrey. Betchworth is one of the towns and villages in Surrey where we work for electronic leak detection. For surveys nearby, see our Crawley page.
All of RH3 is covered for electronic leak detection. You’ll find streets such as The Street, Station Road and Old Reigate Road. We also cover the places around Betchworth: Buckland (1 mile east), Brockham (1 mile south-west), Box Hill (1 mile north-west), Strood Green (1 mile south-west) and Dawesgreen (2 miles south). Larger places within reach include Guildford (13 miles west), Woking (14 miles west), Epsom (7 miles north), Horley (6 miles south-east), Redhill (4 miles east) and Ewell (8 miles north).
Local landmarks in Betchworth
Around Betchworth, our work takes us to homes and buildings near The Red Lion pub and Brockham Limeworks. The nearest railway station is Betchworth station, about 0.5 miles north. A little further out are Reigate Priory Museum (2.7 miles east) and Headley Court (3.6 miles north). Not far away are Reigate Heath and Box Hill.
What we do, step by step
Once we have finished looking, we write up our findings as a report with photographs, sent to you by email. On timing, it usually takes a length of time set by the size of the roof and how it’s built, which we’ll explain when we quote. Older roofs in small places like Betchworth can have low, tight loft spaces, so tell us about the loft hatch and any ladder. We only go where it’s safe.
- We start with what you know about the roof and the leak.
- The roof is assessed for suitability first.
- The test method is chosen to suit the roof.
- We test the roof and locate any breaches.
- You get a report with photos of each breach.
How to prepare
- Agree roof access with the managing agent if it is shared
- Let us know where we can park nearby
- Keep pets in another room
Booking a survey
Booking is simple: just ring 07833 053749 or send us an email, let us know about the property and we’ll point you to the right survey. The price is agreed up front.