Oxfordshire · London and the South East
Electronic Leak Detection in Crowell
Electronic leak detection to pinpoint holes in flat roof membranes across Crowell, using drones and thermal imaging where it applies. Get in touch for a price.
- Leaks under green or ballasted roofs
- Punctures from foot traffic or tools
- Gaps at membrane joints
Rented homes, blocks and businesses
Letting agents can arrange access with tenants. We survey on weekdays, Saturdays and Sundays, which helps when tenants work during the week.
If you own several properties, you can book surveys for several addresses. To discuss a number of properties, phone 07833 053749 or use the contact form.
Electronic leak detection in Crowell: what you get
Electronic testing locates holes in the waterproofing but not every way water gets in. Leaks from walls, copings, rooflights or pipes need other checks. If the evidence points elsewhere, we’ll say so. The test shows breaches in the membrane, not water coming through masonry or around frames. The report makes clear what was and wasn’t tested. We’ll point you to the likely next step. We survey green roofs, flat roof membranes and commercial flat roofs, and the problems we are asked to look at most are holes left by work on the roof and new membranes needing a check before handover.
Flat roofs on exposed homes in small places like Crowell take more wind and rain, so edges, upstands and laps take a beating. Felt roofs, which often last around 15–20 years, usually 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 doesn’t just list problems. It explains what we found, why it matters and what we recommend.
- Location
- Crowell (OX39)
- Region
- Oxfordshire
- Price
- Quoted for your roof
- Your report
- A written report with photos, by email
- Appointments
- Weekdays and weekends
- Insured
- Professional indemnity and public liability
- Telephone
- 07833 053749
- Updated
- 27 October 2026
What happens if roof problems are left?
Not every leak is in the membrane. Testing shows whether the membrane is breached, 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 Crowell, call 07833 053749 or drop us an email with the address and some details. The price is agreed before a date is set.
Why us?
- Independent findings on the roof’s condition
- Surveys seven days a week
- A photo-illustrated written report
- Satisfaction rate of 98%
Take a look at what a roof survey costs and two real surveys.
Electronic leak detection in Crowell: local notes
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. Historic houses like Adwell House, about 2.9 miles west, show how far back building in the area around Crowell goes. Older roofs in the wider area can hide decades of patch repairs, so the detail matters, and the council can say whether a home is in a conservation area.
If you own a rental within reach of Princes Risborough station, the flat roof over a let home is worth a look before it becomes a tenant complaint. Anyone responsible for a site like Mill Lane Community Primary School will know that ponding and blocked outlets on a wide flat roof are worth catching before the next wet season.
Crowell is about 4 miles south-east of Thame, in Oxfordshire. From houses to flats and shops in Crowell, we can survey the roof on a weekday or at the weekend. Our area takes in places right across Oxfordshire, from the larger towns to small villages. We also survey roofs in Oxford.
We work across the OX39 postcode area for electronic leak detection and the streets around it. We also cover the places around Crowell: Kingston Blount (1 mile west), Oakley (1 mile north-east), Crowell Hill (1 mile south-east), Aston Rowant (1 mile south-west) and Postcombe (2 miles west). Larger places within reach include Oxford (14 miles west), Didcot (15 miles west), Abingdon-on-Thames (15 miles west), Thame (4 miles north-west), Henley-on-Thames (11 miles south) and Benson (9 miles south-west).
Near you in Crowell
Typical jobs here are in homes near The Shepherd's Crook pub. The nearest railway station is Princes Risborough station, roughly 3.9 miles north-east. Nearby you’ll also find Thame Community Hospital (4.2 miles north-west). Green spaces nearby include Oakley Hill nature reserve and Bald Hill.
Towns and villages near Crowell
What else we do in Crowell
Common roof problems in Crowell
Holes in a membrane often come from feet, tools or debris. Some are too small to see but water still finds them.
These are some of the problems a survey can pick up:
- Holes left by work on the roof
- Leaks that return after repairs
- Waterproofing to test before it is covered
- Leaks showing away from the breach
If yours is one of the older homes in the streets near Church of the Nativity of the Blessed Virgin 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.
Before you book anyone
- What the report includes, and whether it has photos
- Their report turnaround times
- Their track record with similar roofs
- Is there a chance to talk the report through?
Tips that help
Small things make a difference. Our tips:
- Tell us about the membrane and build-up if you know it
- Keep foot traffic on flat roofs to a minimum
- Ask contractors to protect the membrane
- Do not leave water getting in
The report records each breach location with photos. Pass it to your roofer to repair the breach points.
Act on leaks quickly. The longer water gets in, the more insulation and decking can be affected.
Crowell questions
Does a conservation area affect roof work in Crowell?
Check Historic England’s online list first, then ask the council about conservation areas and any Article 4 direction. It matters most if you’re planning to re-roof in a different material.
Do you cover smaller places like Crowell?
Yes, Crowell is on our map. A small place gets exactly the same survey as a big one.
Will you fly a drone over my roof?
Yes, where it is applicable. Whether we can fly on the day depends on the weather and the airspace rules, including flight restriction zones near airports. We’re a CAA-registered drone operator.
Does someone need to be in?
If the survey includes the loft or the inside of the building, someone needs to let us in. Access is agreed with you as you book.
Will you go up on the roof?
Not unless it is safe. Most of what we need can be seen from safe viewpoints, the loft and, where it applies, a drone.
Is my roof suitable for ELD?
It depends on the membrane and the build-up. Let us know what you know about the roof and we’ll check whether ELD will work.
Will I get photos?
Yes. Photographs are part of every report, so you can see each point for yourself.
What this survey can’t tell you
We only report everything that’s safely in view on the day, so there are some things a survey can’t cover:
- Repairing the breaches (that’s for your roofer)
- Leaks from plumbing or windows
- The extent of water in the insulation
Not sure which survey suits your roof? You can phone 07833 053749 or use the contact form and we will tell you. What a survey covers and doesn’t.
What we look at
- Liquid-applied waterproofing
- Commercial flat roofs
- Green roofs
- Roof terraces and balconies
- Flat roof membranes
- Single-ply roofs
How it works
We photograph the roof as we go, so the report shows exactly what we saw. Close-ups come from the safest viewpoint available, including by drone where it is applicable and the weather allows. A typical visit takes a length of time set by the size of the roof and how it’s built, which we set out in the quote. In a hamlet or village like Crowell, a postcode doesn’t always lead to the right gate, so a few directions, or a note of a nearby landmark, help us arrive on time. After that, the survey runs as it would anywhere.
- We agree the area to be tested.
- The surface is prepared for the chosen method.
- Testing runs across the agreed area.
- We mark the breach locations in our records.
- You receive the results to pass to your roofer.
Before we arrive
- Let us know about parking near the property
- Buyers: confirm access with the estate agent or seller
- Find any records of previous roof work
Getting a price
Booking is simple: just call 07833 053749 or email us, let us know about the property and we’ll suggest the right survey. The price is agreed up front.