West Sussex · London and the South East
Petworth Electronic Leak Detection
We take a careful look at the flat roof membrane at your property in Petworth, with photographs and a written report.
- Failed seams and laps
- Waterproofing to test before it is covered
- Leaks showing away from the breach
How electronic leak detection works in Petworth
Not every flat roof suits electronic testing. Certain membranes conduct electricity, and some build-ups lack the layer the test needs below the membrane. If your roof isn’t suitable, we will tell you at the start. Telling us what you know about the roof’s membrane and layers helps, including drawings, specifications or the roofer’s paperwork. It avoids arranging a test that cannot give results. If you’ve noticed leaks under green or ballasted roofs and water coming in under a flat roof, a survey will tell you what’s going on, on flat roof membranes, green roofs and commercial flat roofs alike.
Flat roofs on exposed homes in small places like Petworth take more wind and rain, so edges, upstands and laps take a beating. Felt roofs, which frequently last around 15–20 years, usually show it first. EPDM rubber and GRP coverings last longer, but their edges and joints still need checking. On an exposed roof, the edges tend to go first.
Pictures do a lot of the work in our reports, because a photo of a cracked flashing says more than a paragraph. If something couldn’t be seen safely, the report is clear about it.
- Location
- Petworth (GU28)
- Region
- West Sussex
- Cost
- Quoted for your roof
- Your report
- A written report with photos, by email
- Appointments
- Weekdays, Saturdays and Sundays
- Cover
- Professional indemnity and public liability
- Phone
- 07833 053749
- Updated
- 27 October 2026
Why act early in Petworth
Not every leak is in the membrane. ELD helps rule the membrane in or out, so other causes can be checked. Matching old materials, such as handmade tiles or stone slates, can take time to source. Spotting a problem early leaves room to find them.
For a price for your roof in Petworth, ring 07833 053749 or send us an email and tell us about the roof. The price is agreed before a date is set.
Why book with us
- Thermal imaging and drone inspection where they help
- Independent findings on the roof’s condition
- A sub-250g drone, flown with a CAA Flyer ID and Operator ID
- A written report with photos
Read what a roof survey costs or our case studies.
Useful tips for Petworth property owners
Small things make a difference, both for the survey and for the roof itself. Some pointers:
- Act on new leaks promptly
- Keep a note of leaks after rain
- Let us know about the membrane and build-up if you know it
- Stay off the flat roof unless needed
If we think the leak is not coming through the membrane, the report says so, so other causes can be checked.
Ask trades working on the roof to protect the membrane when fitting equipment. Check the roof after they’ve finished.
FAQs for Petworth
Does a conservation area affect roof work in Petworth?
You can check whether a building is listed on Historic England’s list, and your council can tell you if it is in a conservation area. Listed building consent is needed for changes that affect a listed building’s special interest, and conservation areas can limit changes of roofing material.
Do you cover smaller places like Petworth?
Yes, Petworth is on our map. Villages and rural addresses get the same survey as a town house, with the route planned beforehand.
How much time does ELD need?
It typically takes as long as needed for the size of the roof and how it’s built, which we set out in the quote.
Will you fly a drone over my roof?
Where it helps and the rules allow, yes. We hold a CAA Flyer ID and Operator ID and fly a drone under 250g, and every flight depends on the airspace and the weather.
How do I arrange electronic leak detection in Petworth?
The quickest way is to ring 07833 053749 or use the contact form. Let us know the address and a little about the roof. We survey on weekdays, Saturdays and Sundays.
What if it rains on the day?
Some surveys depend on the weather more than others. Drones cannot fly safely in high wind or heavy rain, and thermal imaging works best with a dry roof, little wind and a sunny day beforehand. If the conditions are not right, we’ll talk to you about another date.
What do I do with the report?
You’ll receive the report by email, and what you do next is up to you: use it with a seller, an insurer, a roofer or a managing agent.
What we’re asked to look at in Petworth
New membranes can have defects from installation. ELD on a new roof can show holes before they cause leaks.
Look out for signs like these:
- Damage from equipment installers
- Patched roofs that still leak
- Breaches hidden under paving or planting
- Waterproofing to test before it is covered
Anyone responsible for a site like Petworth Cof E Primary School will know that ponding and blocked outlets on a wide flat roof are worth catching before the next wet season.
What to check before booking
- Will they check the loft as well as the outside?
- Whether you can ask questions once you have the report
- Their report turnaround times
- What they will not be able to tell you
What happens on the day
Every roof is different, but as a rough guide the survey takes as long as needed for the membrane area and the build-up, which we’ll explain when we quote. If you have questions on the day, just ask. Around Petworth, older homes can have small or awkward roof spaces, so let us know about the loft hatch and any ladder. We only go where it is safe.
- We start by finding out what the roof is made of and where it leaks.
- We check that the membrane and build-up suit electronic leak detection.
- The method depends on the membrane and what sits above and below it.
- We test the membrane and find where current is passing through it.
- The breaches are recorded with photographs in a report for your roofer.
Getting ready for the survey
- Let us know about parking before the day
- Find any records of previous roof work
- Have any questions written down, so nothing gets missed
How to book
Booking is simple: just ring 07833 053749 or drop us an email, tell us about the property and we will explain which survey suits. The price is agreed up front.
Related advice
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, as it helps a surveyor trace the cause.
A DIY look is useful, but it isn’t a survey. From ground level, valleys, flashings and the backs of chimneys are often out of sight, and those are details a survey looks at closely.
Local flat roofs in Petworth
Historic houses like Petworth House, about 0.3 miles north, show how far back building in the area around Petworth goes. If you own one of the older houses, expect a mix of original materials and later repairs on the roof. In Sussex, older roofs are frequently handmade clay tile, frequently with tile-hanging on the walls below. Horsham stone slab roofs survive on some old Sussex buildings. Next to the main roofs there’s usually a flat roof somewhere, whether on an extension, a garage or a commercial unit.
For landlords with property near Pulborough station, flat roofs on let property tend to be checked only when they fail, which is the costly way round. For an older house near a landmark such as Sacred Heart Church, later flat-roofed additions are common on older houses, and their edges and upstands frequently show the first signs of wear.
Petworth is about 12 miles north-east of Chichester, in West Sussex. We carry out electronic leak detection in Petworth for houses, flats, blocks and commercial buildings, with a written report and photographs every time. Across West Sussex, we cover Petworth and the places around it. There’s also a page for Guildford.
Here we cover the GU28 postcode area for electronic leak detection. We offer electronic leak detection to properties on Station Road, Back Lane and Rosemary Lane. Petworth is on the A272 and A283, so it’s easy for us to get to. If you are just outside Petworth, we cover Hampers Green (1 mile north), Haslingbourne (1 mile south-east), Tillington (1 mile west), Rotherbridge (1 mile south-west) and Upperton (1 mile north-west). Further out, we also cover Horsham (14 miles north-east), Worthing (14 miles south-east), Bognor Regis (14 miles south), Chichester (12 miles south-west), Littlehampton (12 miles south) and Rustington (13 miles south).
Local landmarks in Petworth
Typical jobs here are in homes near The Old Square Tavern, among other places. Petworth’s nearest station is Pulborough station, roughly 4.4 miles south-east of the centre. Nearby you will also find Coates Castle (2.6 miles south) and Coultershaw Heritage Site (1.2 miles south). The countryside around Petworth includes The Mens.
Nearby places to Petworth
Other services in Petworth
What this survey can’t tell you
It helps to know what a survey will not do before you book:
- Areas we cannot reach or that can’t be tested
- How wet the insulation is
- Build-ups without a suitable layer below
If you are not sure which survey you need, phone 07833 053749 or email us and we will give you a straight answer before booking. The full list of what we check.
What we check
- Commercial flat roofs
- Roof terraces and balconies
- Green roofs
- Flat roof membranes
- Liquid-applied waterproofing
- Single-ply roofs