Oxfordshire · London and the South East
Electronic Leak Detection in Longcot
Electronic leak detection to pinpoint holes in flat roof membranes in Longcot, with drones and thermal imaging where they help. Get in touch for a price.
- Water coming in under a flat roof
- Failed seams and laps
- Leaks through a covered membrane
Electronic leak detection for homes and businesses in Longcot
You get a report showing the location of each breach with photos. Your roofer can then repair those points instead of hunting for the leak. We do not estimate repair costs; that is for your roofer to price. A retest after repairs can check the work, where the roof still suits the method. Results come in a written report with photos. We survey liquid-applied waterproofing, commercial flat roofs and green roofs, and the problems we’re asked to look at most are leaks at pipes, outlets or fixings and patched roofs that still leak.
Older buildings in small places like Longcot may be listed or in a conservation area, which can shape what a new flat roof may look like. If you’re planning work, check with the council first. Finding out what state the roof is in gives you the facts to plan with. Listed building consent is needed for changes that affect a listed building’s special interest.
After the visit, you get a report with photos, emailed to you. It sets out the condition of the flat roof membrane, any defects and our written recommendations.
- Where
- Longcot (SN7)
- Wider area
- Oxfordshire
- Prices
- Quoted for your roof
- Report
- Written, with photos, emailed to you
- Appointments
- Monday to Sunday, daytime
- Insurance
- Professional indemnity and public liability
- Phone
- 07833 053749
- Updated
- 27 October 2026
What we can’t see
Our survey is not a RICS Level 2 or Level 3 survey, a structural engineer’s report or an asbestos survey. It also has these limits:
- Moisture spread under the membrane
- Build-ups without a suitable layer below
- Carrying out the repair work
Not sure which survey suits your roof? You can phone 07833 053749 or send us an email and we’ll tell you. What a survey covers and doesn’t.
What we check
- Flat roof membranes
- Liquid-applied waterproofing
- Commercial flat roofs
- Single-ply roofs
- Roof terraces and balconies
- Green roofs
Common roof problems in Longcot
Joints and laps in a membrane can fail over time. Small openings at laps can leak for months before it shows.
Here are some of the things we see often:
- Leaks through a flat roof with no obvious cause
- New roofs to check before paving or planting
- Failed seams and laps
- Breaches hidden under paving or planting
If you live in an older home near Church of St Mary, later flat-roofed additions are common on older houses, and their edges and upstands frequently show the first signs of wear.
Questions to ask before you book
- Their insurance cover
- How they plan to inspect the roof safely
- Which limits apply to the survey
- How long they’ve been surveying roofs
Why get it checked now?
Cutting open a flat roof to find a leak can cause more damage. Electronic testing finds the hole first, so the repair can be targeted. Older cottages and farmhouses around Longcot can have roof timbers that have been there a very long time, where water from a failed roof can cause rot if it is left.
Larger roofs, taller buildings and commercial roofs take longer, so the price reflects that. You will know the figure before booking.
What you get with us
- An independent look at the roof
- Two decades and more of roof surveys
- We hold a CAA Flyer ID and Operator ID
- Weekday and weekend surveys
Nearby places to Longcot
Other services in Longcot
How we price electronic leak detection
To price your survey, we check:
- How many separate roofs there are, such as extensions, dormers and garages
- How complicated the roof is, with its valleys, chimneys and parapets
- The type of building, from a house to a block or an office
- Height and safe access
What a survey costs comes down to the roof itself: how big it is, how high it is, the number of separate roofs and how it can be reached and seen safely. We quote electronic leak detection for each roof, as the method and time depend on the roof.
Helping us price your survey
If you can, have these to hand when you contact us:
- Any marks or damp showing indoors
- The reason for the survey, like buying, a leak or storm damage
- Your postcode, so we can check access and travel
- Anything about access we should know
Every survey is priced before it is booked, so you know where you stand. We quote electronic leak detection for each roof, as the method and time depend on the roof. To book, ring 07833 053749 or email us.
Before and after the survey
These tips come from what we see on roofs every week, before and after a survey:
- Don’t let outlets block
- Stay off the flat roof unless needed
- Do not leave water getting in
- Find the breach before more patching
Keep the report with the roof’s records. It’s a dated record of the membrane’s condition.
Keep people off the flat roof unless they need to be there. Many breaches come from foot traffic.
Flat roofs in Longcot
Historic houses such as Buscot Park, about 4.1 miles north-west, show how far back building in the area around Longcot goes. 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. Cotswold stone slates are found on older buildings in west Oxfordshire, and thatch survives in some of the county’s villages. Slate and clay tile are the usual coverings on older South East houses, with concrete tiles on many later estates. Flat roofs on extensions, dormers, garages and business units are found alongside them almost everywhere.
If you look after a building such as Longcot and Fernham Church of England Primary School, large flat roofs, common on schools and other public buildings, need their outlets, upstands and coverings checked regularly.
Longcot is in Oxfordshire. We survey roofs in Longcot as part of our work across London and South East England. Our area takes in places right across Oxfordshire, large and small. There’s also a page for Oxford.
Electronic leak detection in SN7 work the same way as everywhere else we cover. You’ll find streets such as The Green, Church Close and Hughes Crescent. Neighbouring places we cover for electronic leak detection include Fernham (1 mile north-east), Little Coxwell (2 miles north), Great Coxwell (2 miles north), Woolstone (2 miles south-east) and Uffington (2 miles south-east). Larger places within reach include Abingdon-on-Thames (15 miles east), Witney (13 miles north-east), Carterton (10 miles north), Wantage (8 miles east), Grove (8 miles east) and Faringdon (3 miles north).
What’s near Longcot
Around Longcot, our work takes us to homes and buildings near Bricklayers Arms and Faringdon Community College, among other places. A little further out are Faringdon Day Hospital (2.9 miles north) and Uffington Museum (2.1 miles south-east). For a walk, there’s Badbury Hill.
Longcot questions
Is Longcot in the area you cover?
We do. Every survey there gets the same written report with photos.
Is Longcot within the area you cover?
We do. Villages and rural addresses get the same survey as a town house, with the route planned beforehand.
How quickly is the report sent?
Report times are set by the package. Basic: within 48 hours. Standard: 24 to 48 hours. Premium: the same day. Mention any deadline as you book.
How much does electronic leak detection cost?
Each roof is quoted on its size and build-up. Send us details of the roof. Just ring 07833 053749 or email us for a quote.
Which method do you use?
It depends on the membrane and the build-up. Low-voltage testing normally needs a wet surface and high-voltage methods need the membrane dry and exposed.
How does ELD work?
A sound membrane blocks the test current, so wherever there’s a hole, it passes through. That’s how we locate breaches you can’t see.
Are you structural engineers?
No. We note visible signs like sagging or deflection, but we do not carry out calculations or give an engineer’s opinion. Where an engineer is needed, we say so in the report.
What happens on the day
We work from the outside in: outside views come first, then the roof space if there is safe access. In total, it takes a length of time set by the membrane area and the build-up, which we set out in the quote. Somewhere as small as Longcot, access is frequently the only tricky part. Mention any outbuildings, barns or garages you want included, and anything about the roof you already know. Visits can be on weekdays, Saturdays or Sundays.
- 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
- Let us know about parking near the property
- Let us know about any leaks, stains or damp patches you know of
- Dig out any old roof reports or invoices
Booking a survey
To arrange a survey, call 07833 053749 or send us an email with the address and what you’d like to know about the roof. We will confirm the price before booking.