Oxfordshire · London and the South East
Electronic Leak Detection in Blenheim
Electronic leak detection to pinpoint holes in flat roof membranes around Blenheim, with a written report you can act on. Weekday and weekend visits available.
- Gaps at membrane joints
- New membranes needing a check before handover
- Patched roofs that still leak
Electronic leak detection in Blenheim: what you get
Electronic leak detection, or ELD, finds holes in flat roof waterproofing membranes. It uses a small electrical current that passes through the membrane only where there is a breach. It can find holes too small to spot by eye, so your roofer can repair them. You get a written report with photos of each breach found. Typical surveys look at damage from equipment installers and holes around roof penetrations, on liquid-applied waterproofing, single-ply roofs and roof terraces and balconies.
Flat roofs on exposed homes in small places like Blenheim take more wind and rain, which is hard on edges, upstands and joins in the covering. Older felt roofs, frequently 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.
Pictures do a lot of the work in our reports, because a photo of a cracked flashing says more than a paragraph. Anything out of sight on the day is listed as such.
- Where
- Blenheim (OX44)
- Wider area
- Oxfordshire
- Prices
- Quoted for your roof
- Your report
- Written, with photos, emailed to you
- Appointments
- Monday to Sunday, daytime
- Cover
- PI and public liability insurance
- Telephone
- 07833 053749
- Last updated
- 27 October 2026
Common roof problems in Blenheim
Repeated leaks after repairs suggest the real breach hasn’t been found. Electronic testing helps pinpoint it.
Look out for signs like these:
- Holes around roof penetrations
- Holes left by work on the roof
- Waterproofing to test before it’s covered
- Leaks through a covered membrane
Shop and office owners around Templars Square may find that flat roofs over shops and units are easy to forget until water comes through a ceiling.
What to check before booking
- What insurance they carry
- What experience they bring
- Whether any drone flown is registered with the CAA
- How they plan to inspect the roof safely
Also near Blenheim
More services for Blenheim
What electronic leak detection looks like in Blenheim
Historic houses such as Garsington Manor, about 0.5 miles south, show how far back building in the area around Blenheim goes. Older roofs in the wider area can hide decades of patch repairs, so the detail matters, and any change of roofing material on a listed home needs checking with the council first. 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. Alongside them, flat-roofed extensions, dormers, garages and commercial units are common almost everywhere.
Take an older house close to Church of St Mary: flat-roofed rear additions and dormers added over the years are worth checking. If you look after a building such as Garsington Church of England Primary School, large flat roofs, common on schools and other public buildings, need their outlets, upstands and coverings checked regularly.
Blenheim is about 4 miles south-east of Oxford, in Oxfordshire. Blenheim is part of the area we cover and the surrounding area across London and South East England. Blenheim is one of the places in Oxfordshire where we work for electronic leak detection.
Every address in OX44 is covered for electronic leak detection, from the main roads to the quietest streets. We cover properties on Wheatley Road and North Manor and the roads around them. We also cover the places around Blenheim: Garsington (1 mile west), Denton (1 mile east), Cuddesdon (1 mile east), Horspath (1 mile north-west) and Littleworth (2 miles north). Larger places within reach include Oxford (4 miles north-west), Didcot (9 miles south-west), Bicester (13 miles north), Abingdon-on-Thames (6 miles south-west), Witney (15 miles west) and Thame (8 miles east).
Local landmarks in Blenheim
We work in homes and buildings around Red Lion pub, Wheatley Park School and Library Farmhouse, among other places. The closest station to Blenheim is Radley station, roughly 4.3 miles south-west. Well-known places in the area include British Tattoo History Museum (3.2 miles north-west) and Oxford Castle (5 miles north-west). Not far away are Wells Farm and Shotover.
Surveys for landlords and agents in Blenheim
Roof problems in a rented home affect tenants as well as the building. A survey shows what needs attention, so you can plan the work.
For a freeholder or residents’ company, a roof report is a sound basis for a maintenance plan, with the most urgent items set out first.
Before and after the survey
Nothing here needs a ladder. Our suggestions:
- Avoid repeated repairs without finding the cause
- Check new waterproofing before handover
- Keep outlets clear of debris
- Share any drawings of the roof
Keep the report with the roof’s records. It is a dated record of the membrane’s condition.
Consider testing a new membrane before it’s covered. It’s easier to find holes before more layers are added.
What we do, step by step
Expect us to ask a few questions before we start, such as when any problem began and what work has been done before. Then the inspection itself takes a length of time set by the membrane area and the build-up, which we set out in the quote. Cottages and farmhouses around Blenheim often have roofs at several levels, with lean-tos and outbuildings attached. We work round each section in turn, from the safest viewpoints.
- We start by finding out what the roof is made of and where it leaks.
- We confirm whether the roof is suitable for electronic testing.
- The method depends on the membrane and what sits above and below it.
- We test the membrane and find where current is passing through it.
- You get a report showing where each breach is, for your roofer to repair.
Before the survey
- Unlock side gates and any roof access doors
- Have any questions written down, so nothing gets missed
- If it isn’t your property yet, arrange access through the agent
Booking a survey
Buyers should book once an offer has been accepted, so there’s time to use the report before exchange. Otherwise, simply ring 07833 053749 or email us whenever suits you.
Related advice
Can I check my roof myself?
During heavy rain, look at the gutters from the ground or a window. Water spilling over the edge can be a sign of a blockage or a gutter that has dropped.
Look up at the roof after a storm, from ground level: broken slates or tiles in the garden, gaps along the ridge or loose lead are signs to note. Leave anything above ground level to a survey.
Blenheim questions
Does a conservation area affect roof work in Blenheim?
Historic England’s list shows listed buildings, and the local council can tell you about conservation areas. If a home is listed, changes that affect its special interest need listed building consent, and in a conservation area re-roofing in different materials may need permission.
Do you cover Blenheim?
Yes, Blenheim is one of the places we work. Every survey there gets the same written report with photos, and visits run on weekdays and weekends.
Can you inspect my roof with a drone?
Where it helps and it is safe, yes. Flights depend on the weather on the day and airspace rules, and we check for restrictions near airports before flying. We hold a CAA Flyer ID and Operator ID.
How long does electronic leak detection take?
Testing usually takes longer on a large roof than a small one, with the construction of the roof playing a part too.
Do you survey on Saturdays and Sundays?
We survey seven days a week: weekdays, Saturdays and Sundays. Tell us which days suit you when you book.
Is it the same as a RICS Level 2 or Level 3 survey?
No. We’re experienced roof surveyors, and our survey covers the roof rather than the whole building. For the rest of the building, a RICS home survey is a separate job.
Does ELD include fixing the breach?
No, the test finds the breaches and your roofer repairs them. Your roofer uses the report to target the repair.
What we look for on each type of roof
Inverted and paved roofs
If the build-up rules out ELD, we will say so.
Bituminous membranes
Many flat roofs use bitumen-based membranes. The build-up decides which method will work.