Buckinghamshire · London and the South East
Electronic leak detection in Forty Green, Buckinghamshire
Electronic leak detection to pinpoint holes in flat roof membranes for Forty Green, from an experienced roof surveyor. You get a clear written report with photographs.
- Waterproofing to test before it’s covered
- Patched roofs that still leak
- Leaks through a covered membrane
Electronic leak detection for homes and businesses in Forty Green
Water can travel under a flat roof membrane before it shows inside. So the stain inside rarely sits under the hole. Electronic leak detection tests the membrane itself, to find where it has been breached. It’s testing only and leave the repair to your roofer. On suitable roofs, it replaces guesswork with a located breach. We then send you the results in a written report. Typical surveys look at water coming in under a flat roof and leaks at pipes, outlets or fixings, on liquid-applied waterproofing, flat roof membranes and commercial flat roofs.
Flat roofs on exposed homes in small places like Forty Green 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, normally show it first. EPDM rubber and GRP coverings last longer, but their edges and joints still need checking. On an exposed roof, the edges tend to go first.
We keep jargon out of it: where something needs attention, it says so plainly.

- Place
- Forty Green (HP27)
- Wider area
- Buckinghamshire
- Prices
- Quoted for your roof
- Report
- A written report with photos, by email
- Appointments
- Monday to Sunday, daytime
- Insured
- PI and public liability insurance
- Call
- 07833 053749
- Last updated
- 27 October 2026
What a survey costs
All our prices include VAT. The things that change the price are:
- How complicated the roof is, with its valleys, chimneys and parapets
- Height and safe access
- The roof’s overall size
- The use of thermal imaging or a drone
Larger roofs, taller buildings and commercial roofs take longer, so they’re priced to match. You will know the figure before booking.
Getting in touch
A little information up front helps. Please include:
- When you need the report by
- How the loft is reached, if there is one
- Any photos you have, taken from ground level or a window
- Where any leaks, stains or damp patches show inside
To get a price for electronic leak detection in Forty Green, phone 07833 053749 or drop us an email. The address, the type of property and what you need to know help us price the survey accurately.
What we look for on each type of roof
Inverted and paved roofs
Inverted roofs have the insulation on top of the waterproofing, which affects testing.
Single-ply membranes
Some single-ply membranes suit electronic testing well, depending on the type and build-up.
Questions from Forty Green
Does a conservation area affect roof work in Forty Green?
We can’t confirm that for you, but Historic England’s list and your council can. Both listing and conservation areas can limit changes of roofing material, and councils can also use Article 4 directions.
Do you cover smaller places like Forty Green?
Yes, Forty Green is covered. We survey roofs across London and South East England, from towns to the smallest villages. The journey is planned ahead, so it helps to know about access.
Does electronic leak detection work on all membranes?
Not every roof is suitable. Some membranes conduct electricity and some roofs lack the layer the test needs. If your roof won’t work, we’ll say so before testing.
Do you climb onto every roof?
Only if it’s safe. We check everything that can be seen safely: from the ground, from windows, from inside the loft space, from the roof where it is safe and by drone where it applies. The report says if anything couldn’t be seen.
Do you use low-voltage or high-voltage testing?
We choose the method that suits the roof. You’ll know which method we plan to use before we start.
How long will testing take?
It depends on the size of the roof and its build-up. We’ll give you an idea when we quote.
What’s the best way to book?
To arrange a survey, call 07833 053749 or email us with the address, the type of property and what’s prompted the survey. We will confirm the price and find a day that suits.
Places near Forty Green
Also in Forty Green
Flat roofs in Forty Green
Historic houses such as Adwell House, about 4.8 miles south-west, show how far back building in the area around Forty Green goes. If your home is one of the older ones, expect a mix of original materials and later repairs on the roof, and the council can say whether a home is in a conservation area. A number of Buckinghamshire villages keep thatched roofs on their older buildings. Across the South East, older homes tend to have slate or clay tiles, and many later ones concrete tiles. Mixed in with those pitched roofs are a good many flat ones, over rear extensions, dormers, garages and shops.
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.
Forty Green is about 4 miles south-east of Thame, in Buckinghamshire. Houses, flats, blocks and commercial buildings in Forty Green can all book electronic leak detection, with a written report and photographs every time. Forty Green is one of the towns and villages in Buckinghamshire we cover for electronic leak detection. We also survey roofs in Oxford.
Surveys in HP27 work the same way as everywhere else we cover. Other places close to Forty Green include Henton (1 mile south), Holly Green (1 mile east), Skittle Green (1 mile south-east), Pitch Green (1 mile east) and Bledlow (1 mile south-east). Larger places within reach include Aylesbury (7 miles north-east), High Wycombe (9 miles south-east), Chesham (12 miles east), Marlow (12 miles south-east), Amersham (13 miles east) and Beaconsfield (13 miles south-east).
Around Forty Green
In Forty Green, that means homes and buildings near The Peacock Country Inn and the streets around them. The closest station to Forty Green is Princes Risborough station, about 2.3 miles east. Well-known places in the area include Thame Community Hospital (3.4 miles north-west) and Great Kimble Dial Hill (4.1 miles east). Not far away are Beacon Hill and Oakley Hill nature reserve.
How the survey works
There isn’t much for you to do on the day. Point out anything you’ve noticed, such as stains, drips or loose pieces, and we will get on with the inspection. The survey itself takes a time that depends on the roof’s area and construction, which we set out in the quote. For a village or hamlet like Forty Green, the journey is planned ahead of time: let us know about lanes, gates and parking. On the day, we inspect what can be seen safely, inside and out.
- You let us know about the roof and where water is showing.
- The roof is assessed for suitability first.
- We choose a low-voltage or high-voltage method to match the roof.
- We test the roof and locate any breaches.
- You get a report with photos of each breach.
Before the survey
- Check the loft hatch can be reached
- Jot down any questions you want answered
- Have keys ready for side gates, garages or roof access doors
Book a survey
To book a survey, ring 07833 053749 or drop us an email and tell us the address and what’s prompted the survey. We’ll confirm the price before booking.
Advice
Can I check my roof myself?
After strong wind, take a look from the pavement or garden: pieces of tile or slate on the ground, a gap in the ridge or a lifted flashing are all worth noting. Leave anything above ground level to a survey.
A DIY look is useful, but it is not a survey. From the ground, valleys, flashings and the backs of chimneys are often out of sight, and those are details a survey looks at closely.
Why it’s worth a survey now in Forty Green
Cutting open a flat roof to find a leak can cause more damage. ELD aims to locate the breach first, so the repair can be targeted. Older cottages and farmhouses around Forty Green can have roof timbers that have been there a very long time, where water from a failed roof can cause rot if it’s left.
For a price for your roof in Forty Green, call 07833 053749 or drop us an email with the address and some details. The price is agreed before a date is set.
Why book us in Forty Green
- Over 5,000 surveys carried out
- Thermal imaging and drone inspection where they help
- More than 20 years surveying roofs
- We hold a CAA Flyer ID and Operator ID
Take a look at our cost guide or our case studies.
Practical tips
Small things make a difference, both for the survey and for the roof itself. Our tips:
- Share any drawings of the roof
- Record dates and spots where water appears
- Check new waterproofing before handover
- Do not leave water getting in
Where the evidence points to walls, copings or rooflights, we’ll note it, so other causes can be checked.
Consider testing a new membrane before it’s covered. Finding breaches is simpler at that stage.