East Sussex · London and the South East
Electronic leak detection in Mark Cross, East Sussex
Electronic leak detection in Mark Cross and the rest of East Sussex. Surveys run on weekdays and at weekends.
- Leaks that return after repairs
- Breaches hidden under paving or planting
- Stains far from any visible defect
Mark Cross questions
Does a conservation area affect roof work in Mark Cross?
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 cover smaller places like Mark Cross?
Yes, Mark Cross is covered. We work right across London and the South East, from towns to the smallest villages. Longer journeys are simply planned ahead of time.
How do you choose the testing method?
The roof decides the method. We’ll explain why when we quote.
Does electronic leak detection work on all membranes?
It depends on the membrane and the build-up. Let us know what you know about the roof and we’ll check whether ELD will work.
Does someone need to be in?
It depends on what we need to see. For inside areas and the roof space, someone has to give us access; we will agree the details when you book.
How experienced are you?
Over 5,000 surveys so far, across 20+ years of surveying roofs, and 98% of clients are satisfied.
Can you test a green or ballasted roof?
Sometimes. It depends on the build-up and the layers above the membrane, and some may need lifting. We will discuss it before we quote.
Electronic leak detection in Mark Cross: what you get
ELD suits many waterproofing membranes on flat roofs over offices, units, blocks of flats and homes. It can be used to trace an existing leak or check a new membrane before handover. We quote for each roof based on its size and build-up. We can test on weekdays and at weekends, depending on the weather. Just ask about your roof. Common reasons to book are new membranes needing a check before handover and leaking laps in the waterproofing, across liquid-applied waterproofing, green roofs and flat roof membranes.
Flat roofs on exposed homes in small places like Mark Cross take more wind and rain, so edges, upstands and laps take a beating. Felt roofs, which often last around 15–20 years, typically show it first. Rubber and GRP last longer, though trims and joints still need a look. On an exposed roof, the edges tend to go first.
We write the report in plain English, so it makes sense without any roofing background. Photographs show what each point refers to.
- Place
- Mark Cross (TN6)
- Region
- East Sussex
- Price
- Quoted for your roof
- Report
- Written, with photos, emailed to you
- Appointments
- Weekdays and weekends
- Insurance
- Professional indemnity and public liability
- Call
- 07833 053749
- Updated
- 27 October 2026

Towns and villages near Mark Cross
Also in Mark Cross
Why it’s worth a survey now in Mark Cross
ELD before paving, ballast or planting goes on is simpler. Covered roofs are harder to test. Where a roof is exposed, as many are in small places like Mark Cross, driving rain gets into any weakness, and older walls, once damp, take a long time to dry.
To find out what your survey will cost, call 07833 053749 or use the contact form with the address and a few details. The price is agreed before a date is set.
Why book us in Mark Cross
- An independent look at the roof
- 5,000+ surveys completed
- More than 20 years surveying roofs
- Covered by professional indemnity and public liability insurance
What affects the cost of electronic leak detection
Prices vary from roof to roof, and it comes down to:
- The shape of the roof and its details
- Commercial roofs and larger buildings
- Building height and the viewpoints available
- Roof area
Every price we give includes VAT. We quote electronic leak detection for each roof, as the method and time depend on the roof. You’ll know the price for your roof before you book.
What we need to know
When you call or email, these details help:
- Dates you’re working to, such as exchange
- The kind of building and roof involved
- Why you want a survey: buying, a leak, a storm or new work
- Whether there’s a loft hatch, a shared roof or tricky access
A quick phone call is usually the easiest start: ring 07833 053749 or send us an email and we will ask a few questions about the roof. You’ll have a price before anything is arranged.
How it works
Where it’s relevant and can be reached safely, the roof space is checked as well as the outside. Inside, we look for staining, damp, gaps and signs of movement. The whole visit usually takes longer on a large roof than a small one, with the construction of the roof playing a part too. Cottages and farmhouses around Mark Cross often have roofs at several levels, with lean-tos and outbuildings attached. We work round each section in turn, from the safest viewpoints, and anything we can’t see is noted.
- We start with what you know about the roof and the leak.
- The roof is assessed for suitability first.
- 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
- Move anything stored under the loft hatch
- Point out any leaks or damp patches
- Unlock side gates and any roof access doors
Book a survey
If you’re buying, it’s useful to book soon after your offer is accepted, so there is time to use the report before exchange. For any other survey, just ring 07833 053749 or drop us an email when you’re ready.
Advice
For landlords and managing agents
Any of our surveys can be booked by landlords, agents and building managers in Mark Cross. For a price for a let property or a block, call 07833 053749 or send us an email.
Roof problems in a rented home affect tenants as well as the building. A survey helps you spot issues early and plan the work with less disruption.
Different roofs, different checks
Bituminous membranes
Bituminous felt and modified bitumen membranes are common. Whether ELD suits them depends on the build-up.
Single-ply membranes
Punctures from foot traffic and equipment are common on single-ply roofs. Testing helps find them.
Electronic leak detection around Mark Cross
Historic houses such as Wadhurst Castle, about 3.2 miles east, show how far back building in the area around Mark Cross goes. Older homes in the wider area frequently have features worth a closer look, such as lead valleys, tall stacks and roofs that have been patched over the years, and the council can say whether a home is in a conservation area. Handmade clay tiles and tile-hung upper walls are typical of older Sussex houses. Some old buildings in Sussex have Horsham stone slab roofs, and oast houses and timber-framed Wealden hall houses are part of East Sussex’s older buildings. Flat roofs on extensions, dormers, garages and business units are found alongside them almost everywhere.
For landlords with property near Wadhurst station, flat roofs over rear additions and dormers in rented property are worth checking between tenancies. For an older house near a landmark such as St Marks, the joins between later flat roofs and the old walls are where problems usually start. Take a building like Mark Cross Church of England Aided Primary School: a large flat roof with lots of outlets and rooflights has many places where a membrane can fail.
Mark Cross is about 4 miles east of Crowborough, in East Sussex. We carry out electronic leak detection for homes and businesses in Mark Cross. Our area takes in places right across East Sussex. There’s also a page for Maidstone.
Here we cover the TN6 postcode area for electronic leak detection. We also cover Town Row (1 mile south-west), The Platt (2 miles north), Argos Hill (2 miles south-west), Rotherfield (2 miles south-west) and Rusher's Cross (2 miles south-east). Further out, we also cover Hailsham (14 miles south), Crowborough (4 miles west), Uckfield (9 miles south-west), Heathfield (7 miles south), Upper Horsebridge (13 miles south) and Hellingly (12 miles south).
Local landmarks in Mark Cross
Typical jobs here are in homes near Eridge Park, The Lazy Fox pub and St Joseph Seminary. The closest station to Mark Cross is Wadhurst station, about 2.5 miles east. Well-known places in the area include Crowborough War Memorial Hospital (4.4 miles west). Not far away are Crowborough Country Park.
Tips from our surveys
A little preparation and a few simple habits help. Our tips:
- Let us know about the membrane and build-up if you know it
- Do not leave water getting in
- Stay off the flat roof unless needed
- Keep outlets clear of debris
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.