Oxfordshire · London and the South East
Longworth Electronic Leak Detection
Electronic leak detection in Longworth, with over 20 years’ experience behind it. You get a clear report with photographs.
- Leaks at pipes, outlets or fixings
- Failed seams and laps
- Leaks under green or ballasted roofs
Should I look at the roof myself first?
Keep a simple record: dates of leaks, photos from the ground and any work done on the roof. Share it with us as you book and it will help the survey.
If you have a loft with safe access, take a look inside. Take a torch and only step on boards or joists, and look for staining, damp timber or daylight coming through.
How electronic leak detection works in Longworth
A leak in a flat roof often shows up a long way from where the water gets in. That makes leaks hard to trace by eye. Electronic leak detection tests the membrane itself, to find where it has been breached. We test and report, and the repair is for your roofer. On suitable roofs, it replaces guesswork with a located breach. The results then follow in a written report with photos. If you are worried about breaches hidden under paving or planting and punctures from foot traffic or tools, a survey will tell you what’s going on.
In a small place like Longworth, a flat roof can stand in the open, so edges, upstands and laps take a beating. Older felt roofs, often around 15–20 years in life, 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.
The report works through the roof section by section, from the main slopes down to the gutters and outlets. You will see the good as well as the bad.
- Place
- Longworth (OX13)
- Wider area
- Oxfordshire
- Price
- Quoted for your roof
- Reports
- Written, with photos, emailed to you
- Appointments
- Weekdays and weekends
- Insured
- PI and public liability insurance
- Phone
- 07833 053749
- Updated
- 27 October 2026
What happens on the day
It’s useful to start with what’s prompted the survey: a purchase, a leak, a storm, new work or simply peace of mind. It helps us focus on what matters most to you. The visit usually takes a time that depends on the size of the roof and how it’s built, which we set out in the quote. Older roofs in small places like Longworth can have low, tight loft spaces, so it’s useful to know whether there’s a loft hatch and how easy it is to reach. Only areas that can be reached safely are inspected.
- First, we confirm which roof areas are included.
- We get the roof ready for testing.
- We work across the roof with the test equipment.
- Each breach found is located and recorded.
- You receive the results to pass to your roofer.
How to prepare
- Have any paperwork from past roof work to hand
- Unlock side gates and any roof access doors
- Keep pets inside or away from the areas we are looking at
How to book
We confirm the price for your roof before you book, so you know where you stand. Electronic leak detection is quoted for your roof, because the method depends on the roof. For a price for your roof, ring 07833 053749 or use the contact form.
Related advice
Also near Longworth
Other services in Longworth
When you need someone else
To be straight with you, there are limits to any roof survey:
- Fixing the holes we find
- Water entering through details rather than the membrane
- Build-ups without a suitable layer below
If you are not sure which survey you need, ring 07833 053749 or email us and we’ll give you a straight answer. The full list of what we check.
What this survey covers
- Single-ply roofs
- Liquid-applied waterproofing
- Commercial flat roofs
- Roof terraces and balconies
- Flat roof membranes
- Green roofs
Flat roofs in Longworth
The wider area around Longworth has a long history of building, with Longworth House about 0.4 miles west. On older houses around here, roofs often carry the marks of earlier repairs, from replaced slates to new lead, and a listed home or one in a conservation area may need consent for changes of material. West Oxfordshire’s older buildings often carry Cotswold stone slates, and a few villages in the county keep their thatch. Across the South East, older homes tend to have slate or clay tiles, and many later ones concrete tiles. Flat roofs on extensions, dormers, garages and business units are found alongside them almost everywhere.
If yours is one of the older homes in the streets near Church of St Mary, any flat roof added at the back or on a dormer is likely to be far younger, and less durable, than the main roof.
Longworth is about 7 miles west of Abingdon-on-Thames, in Oxfordshire. We carry out electronic leak detection for householders, landlords and businesses in Longworth and the surrounding area. We cover towns and villages across Oxfordshire, from the larger towns to small villages. There is also a page for Oxford.
We survey roofs across the OX13 postcode area for electronic leak detection. Streets in the area include High Street, Bowbank and Rectory Lane, all of which we cover. Other places close to Longworth include Hinton Waldrist (1 mile west), Kingston Bagpuize (1 mile south-east), Pusey (3 miles south-west), Charney Bassett (3 miles south) and Lyford (3 miles south). We also work in nearby towns such as Oxford (10 miles north-east), Didcot (10 miles south-east), Abingdon-on-Thames (7 miles east), Witney (7 miles north), Carterton (8 miles north-west) and Wantage (7 miles south).
What’s near Longworth
Locally, jobs take us to homes and businesses close to Waggon And Horses Public House. A little further out are Hinton Waldrist Castle (0.8 miles west). The countryside around Longworth includes Hitchcopse Pit.
Longworth questions
Is my home in Longworth listed or in a conservation area?
For listing, use Historic England’s list; for conservation areas, ask the council. It matters most if you are planning to re-roof in a different material.
Do you cover smaller places like Longworth?
Yes, we do. We work right across London and South East England, from towns to the smallest villages. Longer journeys are simply planned in advance.
Is it a structural engineer’s report?
No. Our survey is not a structural engineer’s report. We’ll recommend an engineer if we see signs that call for one.
How do you choose the testing method?
The roof decides the method. You’ll know which method we plan to use before we start.
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 whoever owns or manages the building. We can only inspect what we are given access to.
How much does electronic leak detection cost?
Each roof is quoted on its size and build-up. Send us details of the roof, and ring 07833 053749 or drop us an email for a quote.
How many surveys have you done?
Over 20 years and more than 5,000 surveys, across London and South East England.
What we look for on each type of roof
Single-ply membranes
Single-ply can be punctured by tools or fixings. Testing helps find them.
Bituminous membranes
Bituminous felt and modified bitumen membranes are common. Whether ELD suits them depends on the build-up.
Signs you need electronic leak detection in Longworth
A breach can be left during installation. ELD on a new roof can show holes before they cause leaks.
Here are some of the things we see often:
- Repairs that haven’t stopped the leak
- New membranes needing a check before handover
- Stains far from any visible defect
- Gaps at membrane joints
Anyone responsible for a site like Longworth Primary School will know that ponding and blocked outlets on a wide flat roof are worth catching before the next wet season.
Choosing a roof surveyor
- What they will not be able to tell you
- When you’ll get the report
- Is there a chance to talk the report through?
- What the report includes, and whether it has photographs
Leave it or get it looked at?
Chasing a leak again and again is frustrating. A clear record of where the breaches are helps break that cycle. Where a roof is exposed, as many are in small places like Longworth, 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, ring 07833 053749 or use the contact form and let us know about the roof. The price is agreed before a date is set.
Why us?
- Professional indemnity and public liability insurance
- 20+ years’ experience
- A sub-250g drone, flown with a CAA Flyer ID and Operator ID
- 98% of customers satisfied
Take a look at what a roof survey costs and our case studies.