West Sussex · London and the South East
Electronic Leak Detection in Cowfold
Electronic leak detection to pinpoint holes in flat roof membranes in Cowfold, using drones and thermal imaging where it applies. Get in touch for a price.
- New membranes needing a check before handover
- Leaks showing away from the breach
- Patched roofs that still leak
Electronic leak detection in Cowfold: local notes
Handmade clay tiles and tile-hung upper walls are typical of older Sussex houses. Horsham stone slab roofs survive on some old Sussex buildings. Next to the main roofs there’s usually a flat roof somewhere, whether on an extension, a garage or a commercial unit. England has around 10,000 conservation areas and about 500,000 listed buildings. Listed building consent is needed for changes that affect a listed building’s special interest, and conservation areas can limit changes of roofing material, so the council is the place to ask.
If you look after a building such as St Peter's CofE (Aided) Primary School, schools and public buildings frequently have big flat roofs, and their outlets and upstands need regular checks.
Cowfold is about 6 miles south of Horsham, in West Sussex. Roofs in Cowfold get the same thorough look as anywhere else in West Sussex. Our area takes in places right across West Sussex. You can also see our page for Crawley.
Electronic leak detection in RH13 are booked the same way as anywhere else. Whether your property is on Oakfield Road, Acorn Avenue and Holm Oaks or a nearby road, we can help. If you are just outside Cowfold, we cover Kent Street (1 mile south-east), Wineham (2 miles south-east), Shermanbury (2 miles south), Crosspost (3 miles east) and Twineham Green (3 miles south-east). Further out, we also cover Crawley (9 miles north-east), Horsham (6 miles north), Worthing (13 miles south-west), Haywards Heath (8 miles east), Burgess Hill (7 miles east) and East Grinstead (15 miles north-east).
Local landmarks in Cowfold
Well-known places in the area include The Dene Hospital (4.9 miles east). Green spaces nearby include Knepp Wildland.
How electronic leak detection works in Cowfold
There are different ELD methods. Low-voltage methods typically need a wet roof surface, while high-voltage testing needs a dry, exposed membrane. 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 does not suit either method at the outset. Typical surveys look at waterproofing to test before it’s covered and leaks at pipes, outlets or fixings, across green roofs, single-ply roofs and roof terraces and balconies.
Flat roofs on exposed homes in small places like Cowfold take more wind and rain, so edges, upstands and laps take a beating. Felt roofs, which frequently last around 15–20 years, usually 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.
Where we can’t see part of the flat roof membrane, the report says so. That way, it is clear what was covered and what wasn’t, and what we’d suggest next.
- Where
- Cowfold (RH13)
- Wider area
- West Sussex
- Cost
- Quoted for your roof
- Report
- A written report with photos, by email
- Appointments
- Weekdays, Saturdays and Sundays
- Insured
- PI and public liability insurance
- Phone
- 07833 053749
- Updated
- 27 October 2026
How we price electronic leak detection
We confirm the price for your survey before you book. These are the things that affect it:
- If the survey needs thermal imaging or a drone
- Features like valleys, chimneys, dormers and parapets
- How big the roof is
- Commercial roofs and larger buildings
Larger roofs, taller buildings and commercial roofs take longer, so they’re priced to match. The price is confirmed before booking.
Getting in touch
You don’t need to know any roofing terms. It is enough to tell us:
- The property’s address and postcode
- Access details, such as a loft hatch or a shared roof
- Where any leaks, stains or damp patches show inside
- Why you want a survey: buying, a leak, a storm or new work
To arrange a survey, phone 07833 053749 or email us with the address and what you’d like to know about the roof. You will know the price before anything is booked.
When to book a survey in Cowfold
Repeated leaks after repairs suggest the real breach hasn’t been found. Electronic testing helps pinpoint it.
These are some of the problems a survey can pick up:
- Stains far from any visible defect
- Leaks through a flat roof with no obvious cause
- Leaks under green or ballasted roofs
- Leaks at pipes, outlets or fixings
If you live in an older home near Church of St Peter, the flat roofs on later extensions tend to wear out long before the main roof.
Questions to ask before booking
- How they’ll see the roof: from ground level, the loft, the roof or by drone
- Whether the price includes VAT
- Whether you get a written report with photos
- Will they check the loft as well as the outside?
Rented homes, blocks and businesses
If the property is let, the agent or a tenant can let us in, at a time agreed beforehand. We survey on any day of the week, which can make access easier.
With a portfolio of properties, you can book surveys for several addresses. To arrange surveys for several addresses, ring 07833 053749 or use the contact form.
What happens if roof problems are left?
Opening up a roof to hunt for a leak is disruptive. Electronic testing finds the hole first so your roofer knows where to work. Older and listed buildings around Cowfold may need consent and matching materials for repairs, so leaving a defect until it is urgent leaves less time to plan.
To find out what your survey will cost, call 07833 053749 or send us an email and tell us about the roof. The price is agreed before a date is set.
Why book with us
- Every finding written up with photos
- 98% of clients satisfied
- Surveys seven days a week
- Drone flown under a CAA Flyer ID and Operator ID
Take a look at how roof surveys are priced and what we found on two real jobs.
The survey, step by step
We do not take risks to get a closer look. Everything that can be seen safely is inspected, and if part of the roof can’t be seen, the report says so. The survey usually takes more time on a big roof than a small one, with the construction of the roof playing a part too. For a village or hamlet like Cowfold, the journey is planned ahead of time: tell us about narrow lanes, gates, long drives and where we can park. The roof is looked at from the ground, from windows, from the loft where there’s safe access and from the roof where it’s safe.
- We start with what you know about the roof and the leak.
- We check whether the membrane and build-up suit ELD.
- The test method is chosen to suit the roof.
- We test the roof and locate any breaches.
- A report with photographs shows where each breach is.
Preparing for the visit
- Leave side gates unlocked
- Keep pets inside or away from the areas we’re looking at
- If the roof is shared, arrange access with whoever manages the building
Getting a price
Most bookings start with a short call: ring 07833 053749 or use the contact form and we’ll ask a few questions about the roof. The price is agreed before a date is set.
Related advice
Nearby places to Cowfold
More services for Cowfold
When you need someone else
In fairness, there are limits to any roof survey:
- Fixing the holes we find
- Moisture spread under the membrane
- Water entering through details rather than the membrane
If in doubt, ring 07833 053749 or send us an email and we’ll recommend the right survey before booking. What a survey covers and doesn’t.
Roof types and parts we check
- Liquid-applied waterproofing
- Green roofs
- Flat roof membranes
- Single-ply roofs
- Roof terraces and balconies
- Commercial flat roofs
Cowfold questions
Will you come out to Cowfold?
Yes, we do. Our area covers London and the South East, from towns to the smallest villages. The journey is planned ahead, so it’s useful to know about access.
Is my home in Cowfold listed or in a conservation area?
Your council is the best source, with Historic England’s list for listed buildings. A change of roofing material may need consent in either case, and councils can also use Article 4 directions.
What’s the best way to book?
Just ring 07833 053749 or drop us an email with the address. After a few questions, we confirm the price and fix a day.
Do you use low-voltage or high-voltage testing?
The method is chosen to suit the roof. Low-voltage methods are typically carried out on a wet roof and high-voltage methods need the membrane dry and exposed.
Are you structural engineers?
No. Visible signs such as deflection or sagging are recorded, but we don’t provide calculations or an engineer’s opinion. If one is needed, the report says so.
Will you walk on the roof?
Not unless it is safe. Safe viewpoints, the roof space and a drone where applicable cover most of what’s needed, and the report notes anything we couldn’t see.
What’s in the survey report?
It sets out what we found, why it matters and what we recommend, backed by photos. Anything we couldn’t see safely is noted too.