West Sussex · London and the South East
Slinfold Electronic Leak Detection
Find out what’s going on with the flat roof membrane before you decide what to do next. We carry out electronic leak detection in Slinfold.
- Damp inside with no sign on the roof
- New membranes needing a check before handover
- Holes left by work on the roof
What electronic leak detection looks like in Slinfold
Older buildings may be listed or sit in a conservation area. To find out, check Historic England’s list and ask the council about conservation areas. In either case, a change of roofing material may need consent. Older houses across Sussex often have handmade clay tiles, and many have tile-hanging on their upper walls. A few old Sussex buildings still carry heavy Horsham stone slabs. Flat roofs fill the gaps in between, on extensions, garages, dormers and business premises.
If you let a flat or house near Christs Hospital station, a flat roof over a rented flat is easy to forget until the tenant reports a leak. If you own one of the older houses in the streets near The Parish Church of St Peter, the joins between later flat roofs and the old walls are where problems usually start.
Slinfold is about 4 miles west of Horsham, in West Sussex. We survey roofs in Slinfold and the surrounding area across London and South East England. Our area takes in places right across West Sussex, large and small. We also survey roofs in Crawley.
We work across RH13 for electronic leak detection. That includes homes and businesses on The Street, Park Road and West Way and the roads around them. Other places close to Slinfold include The Haven (2 miles west), Five Oaks (2 miles south-west), Rudgwick (2 miles north-west), Bucks Green (3 miles north-west) and Tisman's Common (3 miles north-west). We also work in nearby towns like Crawley (10 miles east), Horsham (4 miles east), Haywards Heath (14 miles east), Burgess Hill (14 miles south-east), Broadfield (9 miles east) and Storrington (10 miles south).
Local landmarks in Slinfold
Around Slinfold, our work takes us to homes and buildings near Farlington Strood Park and Tanbridge House School and the streets around them. For rail, the closest station is Christs Hospital station, about 2.2 miles south-east of the centre. Other landmarks nearby include Horsham Hospital (3.5 miles east) and Christs Hospital School Museum (2.5 miles south-east). Not far away are Warnham LNR.
How electronic leak detection works in Slinfold
Electronic leak detection, or ELD, finds holes in flat roof waterproofing membranes. 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 knows exactly where to repair. The results come in a report with photos. We survey single-ply roofs, green roofs and flat roof membranes, and common reasons people get in touch are a flat roof leak that can’t be traced and patched roofs that still leak.
Some older homes in villages like Slinfold are listed or in a conservation area, which can shape what a new flat roof may look like. Check with the council before planning any change of material. 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.
Findings are set out part by part, from the coverings down to the gutters, with a note and a photo for each point. You will see the good as well as the bad.
- Place
- Slinfold (RH13)
- Region
- West Sussex
- Cost
- Quoted for your roof
- Reports
- Emailed report with photos and recommendations
- Appointments
- Weekdays and weekends
- Cover
- PI and public liability insurance
- Call
- 07833 053749
- Page updated
- 27 October 2026
The survey, step by step
Photographs are taken throughout the visit, so you can see in the report what we found and where. We take close-ups from wherever is safe, including by drone where it’s applicable and the weather allows. A typical visit takes a time that depends on the size of the roof and how it’s built, which we set out in the quote. Somewhere as small as Slinfold, access is often the only tricky part. Mention any outbuildings, barns or garages you want included, and anything about the roof you already know. Visits can be on weekdays, Saturdays or Sundays.
- 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.
- You get a report with photos of each breach.
How to prepare
- Let us know where we can park nearby
- Show us where any leaks or stains appear
- Buyers: confirm access with the estate agent or seller
Arrange a survey
For a price for electronic leak detection in Slinfold, call 07833 053749 or email us. A few details about the property and the roof help us give you an accurate price.
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Also near Slinfold
What else we do in Slinfold
What we cannot see
Our survey is not a RICS Level 2 or Level 3 survey, a structural engineer’s report or an asbestos survey. Other limits to bear in mind:
- Sections we cannot safely access
- Some conductive membranes
- The extent of water in the insulation
If you’re not sure which survey you need, ring 07833 053749 or use the contact form and we will give you a straight answer before booking. What a survey covers and doesn’t.
What this survey covers
- Liquid-applied waterproofing
- Commercial flat roofs
- Flat roof membranes
- Green roofs
- Single-ply roofs
- Roof terraces and balconies
What you can safely check yourself
It helps to keep a record: dates of leaks, photos from ground level and any work done on the roof. Share it with us as you book, as it helps us focus the survey.
A lot can be seen from ground level. Binoculars help you spot slipped slates or tiles, gaps along the ridge and a leaning stack. Never climb onto the roof to look.
Slinfold: your questions answered
Do you cover smaller places like Slinfold?
Yes. Slinfold is within the area we cover, which takes in towns, villages and rural addresses. We survey roofs across London and the South East. Let us know about access, parking and anything unusual about getting there as you book.
Does a conservation area affect roof work in Slinfold?
We cannot confirm that for you, but Historic England’s list and your council can. Both listing and conservation areas can limit changes of roofing material, and councils can also use Article 4 directions.
How experienced are you?
We’ve been surveying roofs for over 20 years and have completed over 5,000 surveys.
What does the report include?
It explains what we saw, what it means and what we’d suggest, with photographs throughout. Anything we couldn’t see safely is noted too, so you know exactly what was covered.
Will you walk on the roof?
Only when it’s safe. Some roofs are too steep or fragile to walk on safely. We use safe viewpoints, the loft space and a drone where it applies.
Do you carry professional indemnity insurance?
Our cover is professional indemnity plus public liability.
Do you use low-voltage or high-voltage testing?
It depends on the membrane and the build-up. Low-voltage methods are typically carried out on a wet roof and high-voltage methods need the membrane dry and exposed.
Tips that help
A survey works best with a little help from you, before and after. Some tips:
- Ask contractors to protect the membrane
- Limit access to the roof
- Get leaks traced quickly
- Don’t let outlets block
If we think the leak isn’t coming through the membrane, the report says so, with a suggestion of what to check next.
Limit foot traffic on flat roofs. Feet and dropped tools are a common cause of holes.
Leave it or get it looked at?
Testing a new membrane before it’s covered is easier than tracing a leak later. Covered roofs are harder to test. For an older or listed building in a place like Slinfold, repairs may need matching materials and consent, so a defect found early gives time to plan the work properly.
To find out what your survey will cost, phone 07833 053749 or email us with the address and a few details. We will confirm the figure before booking.
Why us?
- Thermal imaging and drones used where they help
- Over 5,000 surveys carried out
- Photos and a written report every time
- Customer satisfaction of 98%
Take a look at what a roof survey costs or our case studies.
When to book a survey in Slinfold
Repeated leaks after repairs suggest the real breach hasn’t been found. Electronic testing helps pinpoint it.
Problems we come across frequently include:
- Holes around roof penetrations
- Leaks through a covered membrane
- Waterproofing to test before it’s covered
- Leaks that return after repairs
If you look after a building such as Slinfold CofE Primary School, large flat roofs, common on schools and other public buildings, need their outlets, upstands and coverings checked regularly.
Before you book anyone
- Is VAT included in the price?
- When you will get the report
- Their insurance cover
- Whether the roof space is looked at, where there is one