Oxfordshire · London and the South East
Electronic leak detection in Horley, Oxfordshire
Electronic leak detection to pinpoint holes in flat roof membranes for Horley, from an experienced roof surveyor. Every survey comes with a written report and photographs.
- Gaps at membrane joints
- Repairs that haven’t stopped the leak
- Damp inside with no sign on the roof
Do you need electronic leak detection in Horley?
Water travels under flat roof membranes. The stain inside can be far from the hole, so tracing it by eye is difficult.
A survey can pick up problems like:
- Punctures from foot traffic or tools
- Holes around roof penetrations
- Leaks under green or ballasted roofs
- Repairs that haven’t stopped the leak
Shop and office owners around Castle Quay Shopping Centre may find that the flat roofs over shops and commercial units are worth checking before a leak, not after.
Questions to ask before booking
- Whether you can ask questions once you have the report
- What the survey will not cover
- Which viewpoints they use to see the roof
- When you will get the report
How electronic leak detection works in Horley
ELD can be carried out in more than one way. Low-voltage methods usually need a wet roof surface, while high-voltage testing needs a dry, exposed membrane. The right method depends on the membrane and the build-up of the roof, and we’ll explain our choice. If neither method suits your roof, we’ll tell you before any testing starts. Typical surveys look at failed seams and laps and stains far from any visible defect, across roof terraces and balconies, flat roof membranes and liquid-applied waterproofing.
Older buildings in small places like Horley may be listed or in a conservation area, and that can affect how an extension roof or dormer is re-covered. If you are planning work, check with the council first. Knowing the roof’s condition is the starting point. Changes that affect a listed building’s special interest need listed building consent.
It isn’t only a list of defects. It explains what we found, why it matters and what we recommend, so you can decide what to do next.
- Where
- Horley (OX15)
- Region
- Oxfordshire
- Cost
- Quoted for your roof
- Reports
- Emailed report with photos and recommendations
- Survey days
- Weekdays and weekends
- Cover
- Professional indemnity and public liability
- Call
- 07833 053749
- Page updated
- 27 October 2026

Your questions about electronic leak detection in Horley
Do you cover smaller places like Horley?
Yes, we do. Our area covers London and South East England, from towns to the smallest villages. The journey is planned ahead, so it helps to know about access.
Do you cover Horley?
Yes, Horley is one of the places we work. Every survey there gets the same written report with photos.
What will the report tell me?
You get our findings in writing, part by part, with photos. The most urgent items are made clear.
Are you structural engineers?
No. Our survey is not a structural engineer’s report. If we see signs that need an engineer’s opinion, we will recommend one.
Will you check the loft?
If it’s needed and safe to reach, yes. Inside, we look for damp, staining, gaps and sagging.
How does ELD work?
The waterproofing membrane normally stops an electrical current, but a hole lets it through. That lets us find breaches that are too small to see.
How do I book a survey in Horley?
The quickest way is to phone 07833 053749 or drop us an email. Let us know the address and a little about the roof, and we will suggest the right survey. We survey seven days a week.
How it works
Time on site depends on the size and shape of the roof, but as a rough guide the survey takes as long as needed for the membrane area and the build-up, which we’ll explain when we quote. If you have questions on the day, just ask. For a village or hamlet like Horley, the journey is planned ahead of time: tell us about narrow lanes, gates, long drives and where we can park. On the day, we inspect what can be seen safely, inside and out.
- We ask about the roof, its age, its membrane and where leaks appear inside.
- We confirm whether the roof is suitable for electronic testing.
- We pick the low-voltage or high-voltage method that suits the roof.
- We test the membrane and find where current is passing through it.
- You get a report showing where each breach is, for your roofer to repair.
Before we arrive
- Buyers: confirm access with the estate agent or seller
- Leave side gates unlocked
- Check pets are kept safely away
Arrange a survey
Surveys can be booked for weekdays, Saturdays or Sundays. To arrange a day that suits you, phone 07833 053749 or use the contact form with the address and the days you’d prefer.
Related advice
Why it’s worth a survey now in Horley
Testing a new membrane before it is covered is easier than tracing a leak later. Covered roofs are harder to test. For an older or listed building in a place like Horley, repairs may need matching materials and consent, so leaving a defect until it is urgent leaves less time to plan.
Every price we give includes VAT. We quote electronic leak detection for each roof, as the method and time depend on the roof. We confirm the price for the job before booking.
Why us?
- Plain-English reports with photos
- Thermal imaging and drones used where they help
- PI and public liability insurance
- Independent findings on the roof’s condition
Read what a roof survey costs and two real surveys.
More services for Horley
Local flat roofs in Horley
Upton House, about 3.2 miles west, is one of the historic houses in the wider area around Horley. Period homes nearby can have lead valleys, tall chimneys and a patchwork of past repairs, and a listed home or one in a conservation area may need consent for changes of material. West Oxfordshire’s older buildings often carry Cotswold stone slates, and a few villages in the county keep their thatch. Across the South East, older homes tend to have slate or clay tiles, and many later ones concrete tiles. Flat roofs on extensions, dormers, garages and business units are found alongside them almost everywhere.
If you look after a building such as North Oxfordshire Academy, large flat roofs, common on schools and other public buildings, need their outlets, upstands and coverings checked regularly. If you own a rental within reach of Banbury station, the flat roof over a let home is worth a look before it becomes a tenant complaint.
Horley is about 3 miles north-west of Banbury, in Oxfordshire. Houses, flats, blocks and commercial buildings in Horley can all book electronic leak detection, with a written report and photographs every time. Across Oxfordshire, we cover Horley and the places around it. For surveys nearby, see our Oxford page.
We survey roofs across OX15 for electronic leak detection and the streets around it. If you need electronic leak detection at a property on Manor Orchard and Little Lane or anywhere close by, we can survey it. Nearby, we also carry out electronic leak detection in Wroxton (1 mile south), Drayton (2 miles south-east), Neithrop (3 miles south-east) and Ruscote (3 miles south-east). We also work in nearby towns such as Banbury (3 miles south-east), Chipping Norton (12 miles south-west), Grimsbury (4 miles south-east), Bloxham (5 miles south), Bodicote (5 miles south-east) and Upper Heyford (13 miles south-east).
Around Horley
In Horley, that means homes and buildings near Red Lion pub. The nearest railway station is Banbury station, roughly 3.5 miles south-east of the centre. Nearby you’ll also find Horton General Hospital (3.6 miles south-east) and Castle Quay Shopping Centre (3.2 miles south-east). For a walk, there is Crouch Hill.
Roof by roof
Single-ply membranes
Single-ply can be punctured by tools or fixings. Testing helps find them.
EPDM rubber roofs
EPDM rubber roofs frequently last 30–50 years, but punctures and seam failures still happen.
Before and after the survey
A survey works best with a little help from you, before and after. Tips:
- Ask contractors to protect the membrane
- Have roof specifications to hand
- Keep foot traffic on flat roofs to a minimum
- Get leaks traced quickly
If we think the leak isn’t coming through the membrane, the report says so, with a suggestion of what to check next.
Keep people off the flat roof unless they need to be there. Many breaches come from foot traffic.
Can I check my roof myself?
During heavy rain, look at the gutters from the ground or a window. Overflowing water can point to a blockage or a sagging run.
Keep a simple record: when leaks happen, ground-level photos and any past roof work. Share it with us when you book.