West Sussex · London and the South East
Electronic leak detection in Horsted Keynes, West Sussex
Electronic leak detection to pinpoint holes in flat roof membranes for Horsted Keynes, from an experienced roof surveyor. You get a clear written report with photos.
- Leaks at pipes, outlets or fixings
- Water coming in under a flat roof
- Leaking laps in the waterproofing
When you need someone else
A survey is a careful look at the flat roof membrane, but it cannot do everything. Its limits include:
- Moisture spread under the membrane
- Water entering through details rather than the membrane
- Roofs whose membrane or build-up is not suitable
Not sure which survey suits your roof? You can ring 07833 053749 or email us and we’ll tell you before you book. What a survey covers and does not.
What we look at
- Roof terraces and balconies
- Liquid-applied waterproofing
- Green roofs
- Single-ply roofs
- Commercial flat roofs
- Flat roof membranes
Electronic leak detection for homes and businesses in Horsted Keynes
Green roofs, ballasted roofs and roofs under paving are harder to test. What sits on the membrane can affect which method will work, and some may need lifting. We talk this through before we quote. Drawings or details of the roof’s layers are useful, as they show what lies beneath the surface. If testing is not possible, we will say so. If you are worried about waterproofing to test before it’s covered and leaks showing away from the breach, we can find out what’s behind it, whatever the roof.
Somewhere as small as Horsted Keynes, flat roofs tend to be on extensions, garages and converted outbuildings. The checks are the same as anywhere: outlets, upstands, edges and the covering itself. 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 straight away, and a good reference for later.

- Location
- Horsted Keynes (RH17)
- Region
- West Sussex
- Prices
- Quoted for your roof
- Reports
- Written, with photos, emailed to you
- Survey days
- Monday to Sunday, daytime
- Insurance
- Professional indemnity and public liability
- Call
- 07833 053749
- Last updated
- 27 October 2026
Landlords, agents and block managers in Horsted Keynes
Letting agents can arrange access with tenants, at a time agreed ahead of time. Surveys run on weekdays, Saturdays and Sundays, which can make access easier.
For a freeholder or residents’ company, a roof report is a sound basis for a maintenance plan.
What happens if roof problems are left?
Repeated call-outs for the same leak add up. A report showing the breach points gives your roofer a clear target. For older village homes like those around Horsted Keynes, the right replacement materials are not always easy to find quickly. That’s one more reason to find defects before they become urgent.
The cost of a survey depends on the roof: its size, its height, how many sections it has and how it can be reached and seen safely. Electronic leak detection is quoted for your roof, because the method depends on the roof.
Why us?
- Over 20 years’ experience
- 5,000+ roofs surveyed
- CAA-registered drone operator (Flyer ID and Operator ID)
- An independent view of the roof
Take a look at how roof surveys are priced or two real surveys.
What you can safely check yourself
After strong wind, take a look from the pavement or garden: pieces of tile or slate on the ground, a gap in the ridge or a lifted flashing are all worth noting. Do not go up yourself.
Fresh stains on ceilings or walls after rain are worth noting. Take a photo and write down when you saw it.
Tips from our surveys
There’s plenty you can do without going near the roof. Here’s what helps most:
- Record dates and spots where water appears
- Clear flat roof outlets regularly
- Ask contractors to protect the membrane
- Act on new leaks promptly
The report records each breach location with photos. Your roofer uses it to carry out repairs.
Keep outlets and gutters on flat roofs clear. Water that sits on the roof finds breaches faster.
Horsted Keynes: your questions answered
How do I find out if my home in Horsted Keynes is listed?
The council and Historic England’s list are the places to check. Either can affect what roof work is allowed, so it is worth checking before planning any.
Is Horsted Keynes within the area you cover?
Yes. Horsted Keynes is within the area we cover, which takes in towns, villages and rural addresses. Our area covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
I live in a flat. Can you survey the roof?
Yes. Shared roofs just need a little more planning. Tell us about it when you book and we will plan the survey around it.
Do you use drones?
Yes, where it is applicable. Whether we can fly on the day depends on the weather and the airspace rules. We’re a CAA-registered drone operator.
What if it rains on the day?
It depends on the weather and the survey. Strong wind or heavy rain can make access unsafe and ground a drone, so we’d move the date with you.
What happens next?
You will receive the report by email, and what you do next is up to you: raise it with a seller, send it to an insurer, brief a roofer or share it with a managing agent.
Does ELD work under paving or planting?
In some cases. The layers on top and the build-up below decide it and parts may need to be lifted. We talk this through first.
Electronic leak detection around Horsted Keynes
With Priest House about 3 miles north-west, Horsted Keynes sits in an area with a long building history. Older homes in the wider area often have features worth a closer look, such as lead valleys, tall stacks and roofs that have been patched over the years. In Sussex, older roofs are often handmade clay tile, frequently with tile-hanging on the walls below. A few old Sussex buildings still carry heavy Horsham stone slabs. Flat roofs on extensions, dormers, garages and business units are found alongside them almost everywhere.
For an older house near a landmark such as St Giles' Church, any flat roof added at the back or on a dormer is likely to be far younger, and less durable, than the main roof. If you look after a building like St Giles CofE Primary School, a large flat roof with a good many outlets and rooflights has many places where a membrane can fail. For landlords with property near Haywards Heath station, flat roofs over rear additions and dormers in rented property are worth checking between tenancies.
Horsted Keynes is about 4 miles north-east of Haywards Heath, in West Sussex. From houses to flats and shops in Horsted Keynes, we can survey the roof on a weekday or at the weekend. Horsted Keynes is one of the places in West Sussex where we work for electronic leak detection. Our Crawley page covers surveys nearby.
We cover every part of RH17 for electronic leak detection. That includes homes and businesses on Station Road, Rixons Orchard and Leighton Road and the roads around them. We also cover Danehill (1 mile east), Birchgrove (2 miles north-east), Highbrook (2 miles north-west), Chelwood Common (2 miles east) and Furner's Green (2 miles south-east). We also work in nearby towns such as Crawley (9 miles north-west), Horsham (13 miles west), Haywards Heath (4 miles south-west), Burgess Hill (7 miles south-west), East Grinstead (6 miles north) and Broadfield (9 miles north-west).
Around Horsted Keynes
We work in homes and buildings around The Green Man pub, among other places. The nearest railway station is Haywards Heath station, roughly 4 miles south-west of the centre. Nearby you’ll also find Waterbury Castle (within half a mile north-west) and Princess Royal Hospital (4.1 miles south-west). Green spaces nearby include Blunts Wood and Paiges Meadow.
What happens on the day
Once we’ve finished looking, we write up our findings in a report with photographs. On timing, most surveys take a time that depends on the roof’s area and construction, and we’ll give you a guide when quoting. Older roofs in small places like Horsted Keynes can have low, tight loft spaces, so it’s useful to know whether there’s a loft hatch and how easy it is to reach. We only go where it is safe.
- You tell us about the roof and where water is showing.
- 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.
Before we arrive
- If the roof is shared, arrange access with whoever manages the building
- Keep pets in another room
- Point out any leaks or damp patches
Book a survey
Every survey is priced before it is booked, so you know the cost up front. Electronic leak detection is quoted for your roof, because the method depends on the roof. To book, ring 07833 053749 or email us.