Oxfordshire · London and the South East
Electronic Leak Detection in Cassington
Electronic leak detection to pinpoint holes in flat roof membranes for Cassington and the rest of Oxfordshire. Surveys run on weekdays, Saturdays and Sundays.
- Holes around roof penetrations
- New roofs to check before paving or planting
- Leaks through a covered membrane
How electronic leak detection works in Cassington
There are different ELD methods. Low-voltage testing is usually done with the surface wet, while high-voltage testing needs a dry, exposed membrane. The right method depends on the membrane and the build-up of the roof and we explain which we’ll use. If neither method suits your roof, we’ll tell you at the outset. We are often asked to look into holes left by work on the roof and failed seams and laps, across commercial flat roofs, flat roof membranes and liquid-applied waterproofing.
Flat roofs on exposed homes in small places like Cassington take more wind and rain, which is hard on edges, upstands and joins in the covering. Felt roofs, which often last around 15–20 years, typically show it first. Rubber and GRP last longer, though trims and joints still need a look. Exposed edges are normally the first part of a flat roof to go.
After the visit, you get a written report with photos, sent by email. It sets out the condition of the flat roof membrane, any defects and our written recommendations.
- Place
- Cassington (OX29)
- Wider area
- Oxfordshire
- Price
- Quoted for your roof
- Reports
- A written report with photos, by email
- Appointments
- Weekdays and weekends
- Insurance
- Professional indemnity and public liability
- Telephone
- 07833 053749
- Last updated
- 27 October 2026
Tips from our surveys
Getting the most from electronic leak detection starts before we arrive and carries on afterwards. Tips:
- Keep foot traffic on flat roofs to a minimum
- Check trades protect the waterproofing
- Share any drawings of the roof
- Don’t keep patching the same spot
Keep the report with the roof’s records. It shows the condition of the membrane on that date.
Keep outlets and gutters on flat roofs clear. Water that sits on the roof finds breaches faster.
Flat and commercial roofs around Cassington
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. Alongside them, flat-roofed extensions, dormers, garages and commercial units are common almost everywhere. About 3.4 miles north lies Blenheim Palace, a reminder of how long the area around Cassington has been built on. 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 one of the older houses in the streets near Church of St Peter, flat-roofed rear additions and dormers added over the years are worth checking. Anyone responsible for a site like St Peter's Church of England Primary School will know that a large flat roof with a good many outlets and rooflights has many places where a membrane can fail.
Cassington is about 6 miles north-west of Oxford, in Oxfordshire. In Cassington, as across Oxfordshire, every roof gets the same careful survey. Cassington is one of the towns and villages in Oxfordshire where we work. You can also see our page for Oxford.
We survey roofs across the OX29 postcode area for electronic leak detection. That includes homes and businesses on Church Lane, The Green and Pound Lane and the roads around them. We also cover Swinford (1 mile south-west), Eynsham (2 miles south-west), Wytham (2 miles south-east), Farmoor (2 miles south) and Filchampstead (3 miles south). We also work in nearby towns such as Oxford (6 miles south-east), Didcot (13 miles south), Bicester (11 miles north-east), Abingdon-on-Thames (8 miles south), Witney (6 miles west) and Carterton (11 miles west).
Landmarks near Cassington
Typical jobs here are in homes near Bartholomew School and Chequers Inn, among other places. The closest station to Cassington is Hanborough station, about 2.5 miles north-west. Other landmarks nearby include Oxford Castle and earlier settlement remains (4.5 miles south-east) and Radcliffe Infirmary (4.1 miles south-east). Not far away are Hook Meadow and The Trap Grounds and Cumnor Hill.
What happens on the day
We work from the outside in: first the slopes, edges and gutters from every safe viewpoint, then the loft space where it can be reached. In total, it takes longer on a large roof than a small one, and the build-up of the roof makes a difference too. In a hamlet or village like Cassington, a postcode does not always lead to the right gate, so a few directions are welcome. After that, the survey runs as it would anywhere.
- We start by finding out what the roof is made of and where it leaks.
- We check that the membrane and build-up suit electronic leak detection.
- The method depends on the membrane and what sits above and below it.
- Testing runs across the roof to locate breaches in the membrane.
- You get a report showing where each breach is, for your roofer to repair.
Preparing for the visit
- For flats, check roof access has been agreed
- Have any paperwork from past roof work to hand
- Move anything stored under the loft hatch
Booking a survey
Photos help, if you have them. Take them safely from the ground or a window, and please don’t climb up for a closer look. To get started, call 07833 053749 or email us.
Read more
Checking the roof from ground level
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. Do not go up yourself.
Fresh stains on ceilings or walls after rain are worth noting. Take a photo and write down when you saw it, which helps when we check the roof.
What electronic leak detection doesn’t cover
Before booking, it is worth knowing what a survey will not do:
- Water entering through details rather than the membrane
- Fixing the holes we find
- The extent of water in the insulation
If in doubt, call 07833 053749 or send us an email and we’ll recommend the right survey before booking. What a survey covers and doesn’t.
What we check
- Single-ply roofs
- Flat roof membranes
- Liquid-applied waterproofing
- Roof terraces and balconies
- Commercial flat roofs
- Green roofs
What affects the price in Cassington
To price your survey, we look at:
- How many separate roofs there are, such as extensions, dormers and garages
- Height and safe access
- How complicated the roof is, with its valleys, chimneys and parapets
- House, block, shop or office
Every price we give includes VAT. We quote electronic leak detection for each roof, as the method and time depend on the roof. You will know the price for the job before booking.
What we need to know
We’ll normally ask about:
- Photos of the roof, taken safely from ground level or a window
- The address and postcode of the property
- Any deadline, such as an exchange date
- Whether there’s a loft hatch, a shared roof or tricky access
You can call us seven days a week, including Saturdays and Sundays. For a price or to book, call 07833 053749 or drop us an email.
Nearby places to Cassington
Also in Cassington
Signs you need electronic leak detection in Cassington
Holes in a membrane often come from feet, tools or debris. Many are tiny, but still let water through.
Problems we come across frequently include:
- Repairs that haven’t stopped the leak
- Failed seams and laps
- Damage from equipment installers
- Leaks at pipes, outlets or fixings
Landlords with a home close to Hanborough station may find that the flat roof over a let home is worth a look before it becomes a tenant complaint.
Questions to ask before booking
- Which parts of the roof they’ll actually see
- What exactly goes into their report
- Whether the loft space is looked at, where there is one
- Their drone registration, if they fly one
Cassington questions
Does a conservation area affect roof work in Cassington?
Check Historic England’s online list first, then ask the council about conservation areas and any Article 4 direction. The answer matters most when a change of material is on the cards.
Do you cover smaller places like Cassington?
Yes, Cassington is on our map. A small place gets exactly the same survey as a big one, with the route planned beforehand.
Does the weather affect the survey?
It can, depending on the survey. Drone flights need calm, dry weather, and thermal imaging works best with a dry roof, little wind and a sunny day beforehand. If the conditions are not right, we’ll talk to you about another date.
Will you photograph what you find?
Yes, plenty. Each finding is shown in a picture where possible, so you can see what we mean.
Can you survey a shared roof?
Yes, if whoever owns or manages the building agrees access. We look at the parts we’re given access to, and the report makes that clear.
Is this a RICS survey?
No. It’s a specialist roof survey, not a RICS Level 2 or Level 3 building survey. It focuses on the roof, so it sits alongside a building survey rather than replacing it.
How soon will I get the report?
Report times are set by the package. Basic: within 48 hours. Standard: 24 to 48 hours. Premium: the same day. Mention any deadline when booking.