Oxfordshire · London and the South East
Cumnor Electronic Leak Detection
Wondering about the flat roof membrane at a property in Cumnor? You can book electronic leak detection in Cumnor and across Oxfordshire, with plain-English findings.
- Leaks at pipes, outlets or fixings
- Punctures from foot traffic or tools
- Repairs that haven’t stopped the leak
Electronic leak detection for homes and businesses in Cumnor
Roofs covered with paving, ballast or planting need more thought. The layers on top can limit the methods we can use and parts may need to be lifted. We talk this through before we quote. Drawings or details of the roof’s layers are useful, as they show what lies beneath the surface. We’ll tell you if the roof can’t be tested. We survey roof terraces and balconies, commercial flat roofs and flat roof membranes, and people most frequently book us about failed seams and laps and punctures from foot traffic or tools.
In a village or hamlet like Cumnor, flat roofs are normally on extensions, garages, outbuildings or barn conversions. The checks are the same as anywhere: outlets, upstands, edges and the covering itself. We simply plan the journey and access ahead of time. If there are outbuildings or garages with flat roofs, mention them as you book.
Most points in the report come with a picture, so you can see each defect rather than just read about it. If something couldn’t be seen safely, the report is clear about it.
- Where
- Cumnor (OX2)
- Region
- Oxfordshire
- Cost
- Quoted for your roof
- Reports
- A written report with photos, by email
- Appointments
- Weekdays and weekends
- Insured
- PI and public liability insurance
- Phone
- 07833 053749
- Updated
- 27 October 2026
Should I look at the roof myself first?
It is useful to keep a record: when leaks happen, ground-level photos and any past roof work. Share it with us as you book and it will help the survey.
Your own check is a good start, but it isn’t a survey. From the ground, valleys, flashings and the backs of chimneys are often out of sight.
Tips from our surveys
Small things make a difference, both for the survey and for the roof itself. Our tips:
- Clear flat roof outlets regularly
- Check new waterproofing before handover
- Use boards when working on the roof
- Stay off the flat roof unless needed
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.
Clear flat roof outlets regularly. Water that sits on the roof finds breaches faster.
Cumnor: your questions answered
Is Cumnor within the area you cover?
Yes, we do. We survey roofs across London and the South East, from towns to the smallest villages. The journey is planned ahead, so it is useful to know about access.
Does a conservation area affect roof work in Cumnor?
The council and Historic England’s list are the places to check. Either can affect what roof work is allowed, so it’s worth checking before planning any.
What’s the price of ELD?
We quote for each roof individually. Let us know about the roof and where it leaks, and ring 07833 053749 or use the contact form for a quote.
How fast do I get the report?
It depends on the package: Basic within 48 hours, Standard in 24–48 hours and Premium the same day. Reports are sent by email.
How does ELD work?
ELD passes a small electrical current across the roof to locate holes in the membrane. A breach lets the current through, which shows us where the hole is.
Can you tell me if my roof has asbestos?
No. We can flag materials that might contain asbestos, but confirming it is a job for a specialist asbestos surveyor. Buildings built or refurbished before 2000 may contain it.
How much time does ELD need?
Testing usually takes a time that depends on the roof’s area and construction, and we’ll give you a guide when quoting.
Also in Cumnor
For landlords and managing agents
Letting agents can arrange access with tenants. We survey on any day of the week, which can make access easier.
An agent can book and manage the survey for a landlord, and the report can go to both. Access is agreed with the tenant beforehand.
The survey, step by step
Safety comes first on every visit. Everything that can safely be seen is inspected, and if part of the roof can’t be seen, the report says so. The survey normally takes a time that depends on the size of the roof and how it’s built, which we’ll explain when we quote. For a village or hamlet like Cumnor, the journey is planned beforehand: let us know about narrow lanes, gates, long drives and where we can park. The roof is looked at from ground level, from windows, from the loft where there’s safe access and from the roof where it’s safe.
- We ask about the roof, its age, its membrane and where leaks appear inside.
- We check that the membrane and build-up suit electronic leak detection.
- We pick the low-voltage or high-voltage method that suits the roof.
- Testing runs across the roof to locate breaches in the membrane.
- We send a report with photos of each breach so your roofer can repair it.
Preparing for the visit
- Note where any stains or damp appear
- Let us know where we can park nearby
- Find any records of previous roof work
Book a survey
Most bookings start with a short call: ring 07833 053749 or drop us an email and we will ask a few questions about the roof. The price is agreed before a date is set.
Advice
Prices for electronic leak detection in Cumnor
When we price a survey, we consider:
- Extensions, dormers and garages with roofs of their own
- Commercial roofs and larger buildings
- Any need for thermal images or a drone flight
- How tall the building is and how easy the roof is to see
For a price for your roof in Cumnor, ring 07833 053749 or use the contact form and let us know about the roof. The price is agreed before a date is set.
What we need to know
Getting the details right at the start saves time. It helps to include:
- The style of property, from a terrace to a block
- Whether there is a loft hatch, a shared roof or tricky access
- Any stains, drips or damp patches you’ve seen indoors
- Any photos you have, taken from ground level or a window
For a price for electronic leak detection in Cumnor, phone 07833 053749 or use the contact form. The address, the type of property and what you want to find out help us give you an accurate price.
Electronic leak detection around Cumnor
Cotswold stone slates are found on older buildings in west Oxfordshire, and thatch survives in some of the county’s villages. Older houses in the South East frequently have slate or clay tile roofs, while many later estates have concrete tiles. Flat roofs on extensions, dormers, garages and business units are found alongside them almost everywhere. The wider area around Cumnor has a long history of building, with Appleton Manor about 1.9 miles south-west. If you own one of the older houses, expect a mix of original materials and later repairs on the roof.
If you look after a shop, office or commercial unit, for example near Westgate Shopping Centre, the flat roofs over shops and commercial units are worth checking before a leak, not after. The streets around a church like Church of St Michael are frequently among the oldest in a place, and if you own one of the older houses nearby, the joins between later flat roofs and the old walls are where problems normally start. If you let a flat or house near Oxford station, flat roofs on let property tend to be checked only when they fail, which is the costly way round.
Cumnor is about 4 miles north-west of Abingdon-on-Thames, in Oxfordshire. In Cumnor, as across Oxfordshire, every roof gets the same careful survey. Cumnor is one of the places in Oxfordshire we cover for electronic leak detection.
Postcode districts we cover here for electronic leak detection: OX2. Whether your property is on High Street, The Park and The Winnyards or anywhere close by, we can help. Other places close to Cumnor include Chawley (1 mile north-east), Filchampstead (1 mile north-west), Henwood (1 mile south-east), Dean Court (2 miles north-east) and Botley (2 miles north-east). We also work in nearby towns like Oxford (5 miles east), Didcot (9 miles south-east), Bicester (14 miles north-east), Abingdon-on-Thames (4 miles south-east), Witney (8 miles north-west) and Carterton (11 miles west).
Near you in Cumnor
Locally, jobs take us to homes and businesses close to The Vine Inn and Matthew Arnold School and the streets around them. For rail, the closest station is Oxford station, about 3.1 miles north-east of the centre. A little further out are Westgate Shopping Centre (3.3 miles north-east) and Radcliffe Infirmary (3.6 miles north-east). The countryside around Cumnor includes Lashford Lane Fen and Cumnor Hill.
When you need someone else
Before you book, it’s worth knowing what a survey will not do:
- Roofs whose membrane or build-up isn’t suitable
- Fixing the holes we find
- Leaks from plumbing or windows
Not sure which survey suits your roof? You can ring 07833 053749 or email us and we’ll tell you. What a survey covers and doesn’t.
What we check
- Commercial flat roofs
- Liquid-applied waterproofing
- Flat roof membranes
- Single-ply roofs
- Roof terraces and balconies
- Green roofs