Isle of Wight · London and the South East
Merstone Electronic Leak Detection
Electronic leak detection to pinpoint holes in flat roof membranes in Merstone, carried out by an experienced roof surveyor. Every survey comes with a written report and photographs.
- Leaking laps in the waterproofing
- Breaches hidden under paving or planting
- Damp inside with no sign on the roof
How it works
Where it is relevant and can be reached safely, the loft space is checked as well as the outside. Inside, we look for staining, damp, gaps and signs of movement, as far as the space allows. All in, the survey normally takes a length of time set by the membrane area and the build-up, and we’ll give you a guide when quoting. In a hamlet or village like Merstone, a postcode does not always lead to the right gate, so a few directions, or a note of a nearby landmark, help us arrive on time. The visit itself is the same as anywhere else.
- You let us know about the roof and where water is showing.
- The roof is assessed for suitability first.
- The test method is chosen to suit the roof.
- We test the roof and locate any breaches.
- A report with photographs shows where each breach is.
Before the survey
- If the roof is shared, arrange access with whoever manages the building
- If you are buying, let the agent know when we are coming
- Leave a clear route to the loft
Arrange a survey
We confirm the price for your roof before you book, so you know the cost up front. We quote electronic leak detection for each roof, as the method and time depend on the roof. To book, ring 07833 053749 or send us an email.
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About our electronic leak detection in Merstone
We carry out electronic leak detection on flat roofs in Merstone and across London and South East England. Testing typically takes longer on a large roof than a small one, with the construction of the roof playing a part 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’ve noticed leaks showing away from the breach and breaches hidden under paving or planting, a survey will tell you what’s going on.
Somewhere as small as Merstone, 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. If there are outbuildings or garages with flat roofs, mention them as you book.
If any part of the flat roof membrane couldn’t be seen safely, we say so in the report. That way, it is clear what was covered and what wasn’t, and what we’d suggest next.
- Place
- Merstone (PO30)
- Wider area
- Isle of Wight
- Cost
- Quoted for your roof
- Your report
- Written, with photos, emailed to you
- When we survey
- Weekdays, Saturdays and Sundays
- Insurance
- Professional indemnity and public liability
- Phone
- 07833 053749
- Page updated
- 27 October 2026

Before and after the survey
Small things make a difference, both for the survey and for the roof itself. Our tips:
- Have roof specifications to hand
- Get leaks traced quickly
- Stay off the flat roof unless needed
- Clear flat roof outlets regularly
If water has been getting in, insulation under the membrane may be wet. That is something to discuss with your roofer, and moisture readings can help.
Make sure contractors protect the waterproofing when fitting equipment. Check the roof after they’ve finished.
Also near Merstone
What else we do in Merstone
Your questions about electronic leak detection in Merstone
How do I find out if my home in Merstone is listed?
The council and Historic England’s list are the places to check. It’s worth checking before planning roof work, as both can affect what’s allowed.
Is Merstone within the area you cover?
Yes, Merstone is on our map. Villages and rural addresses get the same survey as a town house.
Is this an asbestos survey?
No. We can flag materials that might contain asbestos, but only a specialist asbestos surveyor can confirm it. Buildings built or refurbished before 2000 may contain it.
How much does electronic leak detection cost?
Each roof is quoted on its size and build-up. Let us know about the roof and where it leaks. Just phone 07833 053749 or email us for a quote.
Can you test a green or ballasted roof?
On some roofs, yes. What sits on the membrane affects the method, so we check the build-up first.
Can you survey a shared roof?
Yes, as long as access is agreed. The roof of a block or converted house is often shared, so we need permission from the freeholder or managing agent. We can only inspect what we are given access to.
Will you photograph what you find?
Yes, every report has them. Each finding is shown in a picture where possible, so you can see what we mean.
Signs you need electronic leak detection in Merstone
When the membrane is buried, holes can’t be seen at all. Electronic methods can help on some of these roofs though it depends on the layers.
Most people get in touch when they’ve noticed one of these:
- Leaks that return after repairs
- Holes around roof penetrations
- New roofs to check before paving or planting
- Leaks showing away from the breach
If you let a flat or house near Shanklin station, flat roofs on let property tend to be checked only when they fail, which is the costly way round.
Before you book anyone
- Which viewpoints they use to see the roof
- Their drone registration, if they fly one
- Is VAT included in the price?
- What exactly goes into their report
Honest limits
It is a careful look at the flat roof membrane, not the whole story. The main limits are:
- Water entering through details rather than the membrane
- Sections we can’t safely access
- Build-ups without a suitable layer below
If you’re not sure which survey you need, phone 07833 053749 or use the contact form and we’ll give you a straight answer. The full list of what we check.
Roofs we survey in Merstone
- Green roofs
- Commercial flat roofs
- Single-ply roofs
- Flat roof membranes
- Roof terraces and balconies
- Liquid-applied waterproofing
Why it’s worth a survey now in Merstone
ELD before paving, ballast or planting goes on is simpler. Once layers are added, finding a breach is harder. Around Merstone, older homes frequently have old roof timbers, where water from a failed roof can cause rot if it is left.
Every price we give includes VAT. Electronic leak detection is quoted for your roof, because the method depends on the roof. We confirm the price for the job before booking.
Why choose Independent Roof Survey in Merstone
- Drone and thermal imaging surveys available
- Insured for professional indemnity and public liability
- 98% of clients satisfied
- Weekday and weekend surveys
Take a look at what a roof survey costs or two real surveys.
Flat and commercial roofs around Merstone
Merstone is within about 5 miles of the coast, where sea air brings more salt and stronger wind than inland. Wind can catch loose edges and trims on a flat roof, and salt air is hard on metal trims, flashings and fixings. Thatch survives on some older Isle of Wight buildings, and nowhere on the island is far from the sea. Flat roofs fill the gaps in between, on extensions, garages, dormers and business premises.
Arreton Manor lies about 1.1 miles north, so building around Merstone goes back a long way. Older homes nearby may have later flat-roofed extensions or dormers, often re-covered more than once.
Merstone is about 3 miles south-east of Newport, in the Isle of Wight. We survey roofs in Merstone and the rest of the Isle of Wight, as part of our work across London and South East England. Our the Isle of Wight coverage includes Merstone. There is also a page for Portsmouth.
All of PO30 is within our area for electronic leak detection, from the main roads to the quietest streets. Local streets include Merstone Lane, Chapel Lane and Newlands, all of which we cover. We also cover the places around Merstone: Arreton (1 mile north-east), Rookley (1 mile south-west), Hale Common (1 mile south-east), Rookley Green (1 mile south-west) and Blackwater (2 miles north-west). Within a short drive, we also cover Newport (3 miles north-west), Ryde (6 miles north-east), Cowes (7 miles north), Sandown (4 miles east), Shanklin (4 miles south-east) and Ventnor (5 miles south-east). For harder-to-reach addresses, the survey takes a little more planning, so let us know when you contact us.
Landmarks near Merstone
The nearest railway station is Shanklin station, roughly 3.8 miles south-east. Well-known places in the area include Whitecroft Hospital (2.2 miles west) and Carisbrooke Castle (3.1 miles north-west). The countryside around Merstone includes Stenbury Down and Alverstone Mead.
What you can safely check yourself
After heavy rain, check ceilings and the tops of walls for new stains. Photograph them and note the date.
A lot can be seen from the ground. With binoculars, look for slipped or missing slates and tiles, gaps along the ridge and leaning chimneys. Never climb onto the roof to look.