West Sussex · London and the South East
Electronic leak detection in Felcourt, West Sussex
Electronic leak detection to pinpoint holes in flat roof membranes across Felcourt, using drones and thermal imaging where applicable. Call or email for a price.
- Stains far from any visible defect
- Repairs that haven’t stopped the leak
- Gaps at membrane joints
How electronic leak detection works in Felcourt
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 roof terraces and balconies, liquid-applied waterproofing and commercial flat roofs, and the problems we’re asked to look at most are holes around roof penetrations and new membranes needing a check before handover.
Somewhere as small as Felcourt, flat roofs tend to be on extensions, garages and converted outbuildings. The checks are the same as anywhere: the covering, the edges, the upstands and where water drains away. We simply plan the journey and access ahead of time. Garages and outbuildings are easy to forget, so mention any you want included when you book.
The report records the flat roof membrane as we found it on the day. It is useful right away, and a good reference for later, like when you want to compare after future work.

- Location
- Felcourt (RH19, RH7)
- Wider area
- West Sussex
- Cost
- Quoted for your roof
- Report
- Emailed report with photos and recommendations
- Appointments
- Monday to Sunday, daytime
- Insured
- Professional indemnity and public liability
- Phone
- 07833 053749
- Page updated
- 27 October 2026
Before and after the survey
There’s plenty you can do without going near the roof. Here’s what helps most:
- Check trades protect the waterproofing
- Test new membranes before covering them
- Tell us about the membrane and build-up if you know it
- Do not keep patching the same spot
If anything in the report is not clear, ask us. We can talk you through the findings.
Consider testing a new membrane before it’s covered. It’s easier to find holes before more layers are added.
How the survey works
It’s useful to start with what’s prompted the survey: buying, a leak, storm damage, new work or just wanting to know where things stand. It helps us focus on what matters most to you. The visit typically takes as long as needed for the roof’s area and construction, and we’ll give you a guide when quoting. In a small place like Felcourt, access is normally the main thing to plan. Let us know about outbuildings, past repairs and any leaks you’ve noticed. Weekday and weekend visits are available.
- You tell us about the roof and where water is showing.
- We check whether the membrane and build-up suit ELD.
- We choose a low-voltage or high-voltage method to match the roof.
- We test the roof and locate any breaches.
- A report with photographs shows where each breach is.
Getting ready for the survey
- Have any paperwork from past roof work to hand
- Have keys ready for side gates, garages or roof access doors
- If it is not your property yet, arrange access through the agent
Booking a survey
If you have photos of the roof, send them over. Pictures from ground level or a window are fine, and please don’t climb up for a closer look. To get started, ring 07833 053749 or send us an email.
Read more
Should I look at the roof myself first?
After heavy rain, check ceilings and the tops of walls for new stains. Photograph them and note the date.
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.
Signs you need electronic leak detection in Felcourt
On a flat roof, water spreads under the waterproofing. The leak may show some distance from where water gets in which makes it hard to find by looking.
People normally book a survey when they’ve noticed something like this:
- Repairs that haven’t stopped the leak
- New roofs to check before paving or planting
- Breaches hidden under paving or planting
- Water coming in under a flat roof
If you own a rental within reach of Dormans station, the flat roof over a let home is worth a look before it becomes a tenant complaint.
Before you book any roof surveyor
- Whether the price includes VAT
- Whether you can ask questions once you have the report
- How soon the report will arrive
- Whether any drone flown is registered with the CAA
Rented homes, blocks and businesses
For blocks of flats, a roof survey helps managing agents and residents’ management companies plan ahead. Recommendations are set out by urgency where it matters, which helps when budgeting.
For a freeholder or residents’ company, a roof report is a sound basis for a maintenance plan, with the most urgent items set out first.
Honest limits
It is a careful look at the flat roof membrane, not the whole story. Its limits include:
- Build-ups without a suitable layer below
- Fixing the holes we find
- Sections we cannot safely access
If in doubt, call 07833 053749 or send us an email and we will recommend the right survey before booking. What our survey covers.
Roof types and parts we check
- Commercial flat roofs
- Liquid-applied waterproofing
- Green roofs
- Roof terraces and balconies
- Flat roof membranes
- Single-ply roofs
Places near Felcourt
Other services in Felcourt
Felcourt: your questions answered
Do you cover smaller places like Felcourt?
Yes, we do. We cover the whole of London and South East England, from towns to the smallest villages. The journey is planned ahead, so it is useful to know about access.
Does a conservation area affect roof work in Felcourt?
For listing, use Historic England’s list; for conservation areas, ask the council. It matters most if you’re planning to re-roof in a different material.
Do you use drones?
Where it helps and it’s safe, yes. Whether we can fly on the day depends on the weather and the airspace rules. We’re a CAA-registered drone operator.
How is ELD priced?
We quote for each roof individually. Let us know about the roof and where it leaks. Just ring 07833 053749 or drop us an email for a quote.
Does ELD include fixing the breach?
No. ELD is testing only. You get the breach locations with photos for your roofer to repair.
Do you carry professional indemnity insurance?
Our surveys are covered by professional indemnity and public liability insurance. Ask if you need details for a managing agent or building owner.
Which days do you carry out surveys?
Surveys can be booked for any day of the week: weekdays, Saturdays and Sundays. Tell us which days suit you as you book.
Electronic leak detection in Felcourt: local notes
With Saint Hill Manor about 3.7 miles south, Felcourt sits in an area with a long building history. On older houses around here, roofs often carry the marks of earlier repairs, from replaced slates to new lead, and a listed home or one in a conservation area may need consent for changes of material. Many older homes in Sussex have handmade clay tiles and tile-hung walls. Some old buildings in Sussex have Horsham stone slab roofs. Alongside them, flat-roofed extensions, dormers, garages and commercial units are common almost everywhere.
Anyone responsible for a site like Bush Davies School of Theatre Arts will know that large flat roofs, common on schools and other public buildings, need their outlets, upstands and coverings checked regularly.
Felcourt is about 2 miles north of East Grinstead, in West Sussex. Felcourt is one of many places we visit across West Sussex. Felcourt is one of the places in West Sussex where we work for electronic leak detection. You can also see our page for Crawley.
Here we cover the RH19 and RH7 postcode area for electronic leak detection. Streets in the area include Felcourt Lane, Felcourt Road and Blackberry Road, and we cover them all. We also cover Dormans Park (1 mile south-east), Newchapel (1 mile west), Lingfield (1 mile north), Dormansland (1 mile east) and Felbridge (2 miles south-west). Within a short drive, we also cover Crawley (8 miles south-west), Horsham (14 miles south-west), Haywards Heath (12 miles south), Burgess Hill (15 miles south), Broadfield (9 miles south-west) and Bewbush (9 miles south-west).
Landmarks near Felcourt
Around Felcourt, our work takes us to homes and buildings near Centenary Fields and Imberhorne School, among other places. For rail, the closest station is Dormans station, roughly 0.8 miles east of the centre. Nearby you’ll also find Queen Victoria Hospital (1.9 miles south-east) and East Grinstead Museum (2.5 miles south). Green spaces nearby include Hedgecourt Lake.