Roof surveys across London and the South East 07833 053749info@independentroofsurvey.co.uk

West Sussex · London and the South East

Electronic Leak Detection in West Thorney

We carry out electronic leak detection in West Thorney and the rest of West Sussex. We survey on weekdays and at weekends.

  • Leaks through a covered membrane
  • Leaks through a flat roof with no obvious cause
  • Breaches around outlets and penetrations

Electronic leak detection for West Thorney homes and businesses

How electronic leak detection works in West Thorney

Our ELD testing covers flat roofs in West Thorney and the rest of London and South East England. Testing normally takes longer on a large roof than a small one, and the build-up of the roof makes a difference too. We quote electronic leak detection for each roof, as the method and time depend on the roof. The results come in a written report with photos. If you’re worried about failed seams and laps and damage from equipment installers, a survey will tell you what’s going on, on flat roof membranes, roof terraces and balconies and liquid-applied waterproofing alike.

Older buildings in small places like West Thorney may be listed or in a conservation area, and that can affect how an extension roof or dormer is re-covered. Check with the council before planning any change of material. Knowing the roof’s condition is the starting point. Listed building consent is needed for changes that affect a listed building’s special interest.

Nothing in the report is left vague: where something needs attention, it says so plainly, along with how urgent it is.

Place
West Thorney (PO10)
Wider area
West Sussex
Cost
Quoted for your roof
Your report
Emailed report with photos and recommendations
When we survey
Monday to Sunday, daytime
Cover
PI and public liability insurance
Telephone
07833 053749
Last updated
27 October 2026
Illustration of a flat roof membrane with a target marking a leak point and a small monitor

Common questions in West Thorney

How do I find out if my home in West Thorney is listed?

The council and Historic England’s list are the places to check. It is worth checking before planning roof work, as both can affect what’s allowed.

Do you cover smaller places like West Thorney?

Yes, smaller places are covered as well as towns. We work right across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.

Which method do you use?

The roof decides the method. You’ll know which method we plan to use before we start.

What will the report tell me?

It explains what we saw, what it means and what we’d suggest, backed by photos. Anything we couldn’t see safely is noted too.

Will you walk on the roof?

Not unless it is safe. Safe viewpoints, the loft space and a drone where applicable cover most of what’s needed, and the report notes anything we couldn’t see.

How much does electronic leak detection cost?

Each roof is quoted on its size and build-up. Tell us about the roof and where it leaks, and call 07833 053749 or use the contact form for a quote.

How fast do I get the report?

Each package has its own report time. Basic is within 48 hours, Standard is 24–48 hours and Premium is the same day. If you have a deadline, such as an exchange date, tell us as you book.

Different roofs, different checks

EPDM rubber roofs

EPDM is a long-lasting flat roof membrane, but punctures and seam failures still happen.

Bituminous membranes

Bitumen roofs can often be tested electronically, depending on what’s below.

The survey, step by step

The visit has one job: to see as much of the flat roof membrane as can safely be seen and record it clearly. Notes and photos go into the written report. It typically takes as long as needed for the membrane area and the build-up, and we’ll give you a guide when quoting. Somewhere like West Thorney needs a little journey planning: let us know about lanes, gates and parking. The roof is looked at from ground level, from windows, from the loft where there is safe access and from the roof where it is safe.

  1. We ask about the roof, its age, its membrane and where leaks appear inside.
  2. The roof is assessed to see if electronic testing will work on it.
  3. The testing method is chosen to suit the membrane and build-up.
  4. Testing runs across the roof to locate breaches in the membrane.
  5. You get a report showing where each breach is, for your roofer to repair.

Getting ready for the survey

  • Leave side gates unlocked
  • Make sure the loft hatch can be reached
  • Agree roof access with the managing agent if it’s shared

Booking a survey

Every survey is priced before it’s booked, so you know the cost up front. We quote electronic leak detection for each roof, as the method and time depend on the roof. For a price for your roof, ring 07833 053749 or send us an email.

Ask for a survey

Related advice

Why get it checked now?

Not every leak is in the membrane. Testing shows whether the membrane is breached so attention can go to the right place. In a place like West Thorney, a barn or garage roof left to fail puts whatever is inside at risk. It’s worth including them in a survey before a winter does the damage.

To find out what your survey will cost, ring 07833 053749 or email us and let us know about the roof. The price is agreed before a date is set.

Why choose Independent Roof Survey in West Thorney

  • A photo-illustrated written report
  • More than 20 years surveying roofs
  • 98% customer satisfaction
  • An independent look at the roof

Read how roof surveys are priced or two real surveys.

Surveys for landlords and agents in West Thorney

Surveys can also be booked by buyers’ agents acting for a client. The report is emailed, so it can go straight to your client.

We also survey roofs for businesses and commercial landlords, including offices, shops and units. Larger roofs take longer, and they’re priced for the size.

Electronic leak detection in West Thorney: local notes

The coast is about 1 mile or less from West Thorney, so there is more wind and more salt in the air than further inland. Salt in the air is hard on metal flashings and fixings, and wind catches any loose edge on a flat roof. In Sussex, older roofs are frequently handmade clay tile, frequently with tile-hanging on the walls below. Some old buildings in Sussex have Horsham stone slab roofs. Mixed in with those pitched roofs are plenty of flat ones, over rear extensions, dormers, garages and shops.

For an older house near a landmark such as The Parish Church of St Nicholas, the joins between later flat roofs and the old walls are where problems normally start. Landlords with a home close to Southbourne station may find that the flat roof over a let home is worth a look before it becomes a tenant complaint. With Warblington Castle about 3.1 miles north-west, the area around West Thorney has a long history. If your home is older, its flat-roofed extension or dormer may be on its second or third covering.

West Thorney is about 5 miles south-east of Havant, in West Sussex. From houses to flats and shops in West Thorney, we can survey the roof. Our area takes in places right across West Sussex, from the larger towns to small villages. For surveys nearby, see our Portsmouth page.

Postcode districts we cover here for electronic leak detection: PO10. If you’re just outside West Thorney, we cover Thorney Island (1 mile north-west), Tye (2 miles west), Southbourne (2 miles north), North Hayling (2 miles west) and Northney (2 miles west). Further out, we also cover Bognor Regis (10 miles east), Chichester (6 miles east), Selsey (8 miles south-east), Emsworth (3 miles north-west), Portfield (7 miles east) and Yapton (13 miles east).

What’s near West Thorney

Locally, jobs take us to homes and businesses close to Eames Farm and Bourne Community College and the streets around them. The closest station to West Thorney is Southbourne station, about 2.2 miles north. Nearby you’ll also find Emsworth Museum (2.5 miles north-west) and Warblington Castle (3.1 miles north-west). Open spaces near West Thorney include Nutborne Marshes.

Map of West Thorney © OpenStreetMap contributors

Tips from our surveys

Over many surveys, some simple habits stand out as worth the effort:

  • Test new membranes before covering them
  • Don’t keep patching the same spot
  • Get leaks traced quickly
  • Keep foot traffic on flat roofs to a minimum

Where the evidence points to walls, copings or rooflights, we’ll note it, with a suggestion of what to check next.

ELD before paving, ballast or planting goes on is worth considering. It is easier to find holes before more layers are added.

What affects the cost of electronic leak detection

The price reflects the time and kit the roof needs. That comes down to:

  • Any need for thermal images or a drone flight
  • Height and safe access
  • Extra roofs, like extensions, dormers or garages
  • Whether it is a home or a commercial building

The cost of a survey depends on the roof: its size, its height, how many sections it has and how safely it can be seen. We quote electronic leak detection for each roof, as the method and time depend on the roof.

What to tell us when you get in touch

Here’s what helps us most when you contact us:

  • Photos of the roof, taken safely from ground level or a window
  • Whether there is a loft hatch, a shared roof or tricky access
  • Any marks or damp showing indoors
  • Why you want a survey: buying, a leak, a storm or new work

Getting a price is simple: just ring 07833 053749 or drop us an email, let us know about the property and we’ll explain which survey suits. The price is agreed up front.

20+ yearsRoof survey experience
5,000+ surveys98% customer satisfaction
Drones and thermal imagingCAA-registered drone operator
Fully insuredProfessional indemnity and public liability
Reports from £150Prices include VAT