Hampshire · London and the South East
South Warnborough Electronic Leak Detection
Find out what’s going on with the flat roof membrane before you spend money on it. Electronic leak detection in South Warnborough.
- Patched roofs that still leak
- Leaks through a flat roof with no obvious cause
- Breaches hidden under paving or planting
Electronic leak detection in South Warnborough
Electronic leak detection works on many flat roof membranes over offices, units, blocks of flats and homes. It can be used to trace an existing leak or check a new membrane before handover. Each roof is quoted on its size and build-up. Testing can be carried out on weekdays, Saturdays or Sundays when conditions allow. Just ask about your roof. Common reasons to book are holes left by work on the roof and waterproofing to test before it’s covered, on single-ply roofs, commercial flat roofs and flat roof membranes.
In a small place like South Warnborough, a flat roof can stand in the open, which is hard on edges, upstands and joins in the covering. Felt roofs, which frequently last around 15–20 years, usually show it first. Rubber and GRP last longer, though trims and joints still need a look. Exposed edges are usually the first part of a flat roof to go.
If any part of the flat roof membrane couldn’t be seen safely, we say so in the report. That way, it’s clear what was covered and what wasn’t, and what we’d suggest next.
- Location
- South Warnborough (RG29)
- Wider area
- Hampshire
- Cost
- Quoted for your roof
- Your report
- Emailed report with photos and recommendations
- When we survey
- Weekdays, Saturdays and Sundays
- Insured
- Professional indemnity and public liability
- Telephone
- 07833 053749
- Updated
- 27 October 2026
Your questions about electronic leak detection in South Warnborough
How do I find out if my home in South Warnborough is listed?
The council and Historic England’s list are the places to check. It is worth checking before planning roof work, as both can affect what’s allowed.
Is South Warnborough in the area you cover?
Yes. We survey roofs across London and the South East, and South Warnborough is part of that. You can ring 07833 053749 or use the contact form with the address and a few details, and we’ll talk through which survey suits.
Is this a RICS survey?
No. This is a survey of the roof only, so it is not a RICS Level 2 or Level 3 survey. Many buyers have both.
Does the weather affect the survey?
Light rain doesn’t normally stop a survey. Strong wind or heavy rain can stop drone flights and make roof access unsafe, so if conditions are not right we will arrange another day with you.
What happens after the survey?
You receive the written report by email, with photographs and recommendations. You can use it to talk to a seller, an insurer, a roofer or a managing agent, whichever applies.
Are you structural engineers?
No. Visible signs such as deflection or sagging are recorded, but we do not provide calculations or an engineer’s opinion. The report will say if you need an engineer.
How do you choose the testing method?
The method is chosen to suit the roof. Low-voltage methods are typically carried out on a wet roof and high-voltage methods need the membrane dry and exposed.
Places near South Warnborough
Other services in South Warnborough
Checking the roof from the ground
Inside, the loft is a good place to look, with care. Use a torch and stay on the joists or boards, checking for stains, damp wood or chinks of daylight.
It is useful to keep a record: dates of leaks, photos from the ground and any work done on the roof. Share it with us when booking.
How it works
It helps to start with what’s prompted the survey: a purchase, a leak, a storm, new work or simply peace of mind. It helps us focus on what matters most to you. The visit normally takes more time on a big roof than a small one, with the construction of the roof playing a part too. In a small place like South Warnborough, access is normally the main thing to plan. Mention any outbuildings, barns or garages you want included, and anything about the roof you already know. Weekday and weekend visits are available.
- You let us know about the roof and where water is showing.
- The roof is assessed for suitability first.
- The test method is chosen to suit the roof.
- We test the roof and locate any breaches.
- You get a report with photos of each breach.
Before the survey
- Have keys ready for side gates, garages or roof access doors
- Move anything stored under the loft hatch
- Have any paperwork from past roof work to hand
Arrange a survey
Every survey is priced before it’s booked, so you know the cost up front. Electronic leak detection is quoted for your roof, because the method depends on the roof. For a price for your roof, call 07833 053749 or use the contact form.
Related advice
Tips from our surveys
You don’t need to be a roofer to help. Here’s what helps most:
- Tell us about the membrane and build-up if you know it
- Note where leaks show inside and when
- Do not keep patching the same spot
- Keep outlets clear of debris
Keep the report with the roof’s records. It shows the condition of the membrane on that date.
Ask trades working on the roof to protect the membrane when they work up there. Check the roof after they’ve finished.
How we price electronic leak detection
To price your survey, we look at:
- The use of thermal imaging or a drone
- Extra roofs, like extensions, dormers or garages
- House, block, shop or office
- Height and safe access
Larger roofs, taller buildings and commercial roofs take longer, so the price reflects that. The price is confirmed before you book.
Getting in touch
A little information up front helps. Please include:
- Access details, like a loft hatch or a shared roof
- Pictures of the roof from a safe spot, if you have them
- The reason for the survey, such as buying, a leak or storm damage
- Any marks or damp showing indoors
We survey roofs on any day of the week. To find a date that works for you, phone 07833 053749 or send us an email with the address and the days you’d prefer.
What we cannot see
Without opening up the roof, some things stay hidden, so a survey has limits:
- How wet the insulation is
- Carrying out the repair work
- Areas we cannot reach or that can’t be tested
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 does not.
What we look at
- Single-ply roofs
- Liquid-applied waterproofing
- Green roofs
- Commercial flat roofs
- Roof terraces and balconies
- Flat roof membranes
Local flat roofs in South Warnborough
Thatch survives on some older buildings in Hampshire’s villages. Older houses in the South East often have slate or clay tile roofs, while many later estates have concrete tiles. Flat roofs fill the gaps in between, on extensions, garages, dormers and business premises. An older home may be listed, or stand in a conservation area. Historic England’s list shows listed buildings, and the council can say whether a street is in a conservation area. Re-roofing in different materials may need permission there.
If you live in an older home near Church of St Andrew, later flat-roofed additions are common on older houses, and their edges and upstands frequently show the first signs of wear. For site and facilities teams at buildings such as Robert May's School, ponding and blocked outlets on a wide flat roof are worth catching before the next wet season.
South Warnborough is about 5 miles north of Alton, in Hampshire. We cover South Warnborough and the rest of Hampshire, as part of our work across London and South East England. Our Hampshire coverage includes South Warnborough and the places around it. You can also see our page for Reading.
Every address in RG29 is within our area for electronic leak detection. If you need electronic leak detection at a property on Gaston Lane, Tigwells Field and Alton Road or a nearby road, we can help. Nearby, we also carry out electronic leak detection in Long Sutton (1 mile east), Bidden (1 mile north-west), Little Hoddington (1 mile north-west), Well (2 miles east) and Greywell (3 miles north). Further out, we also cover Basingstoke (7 miles north-west), Farnborough (10 miles north-east), Fleet (7 miles north-east), Aldershot (9 miles east), Alton (5 miles south) and Petersfield (15 miles south).
Around South Warnborough
For rail, the closest station is Hook station, about 3.9 miles north. Well-known places in the area include Odiham Castle (2.7 miles north) and Gliding Heritage Centre (3.5 miles south-west). For a walk, there’s Holybourne Hill and Dogmersfield Lake.
Do you need electronic leak detection in South Warnborough?
Other trades on the roof can puncture the waterproofing. Fixings, equipment and foot traffic can leave small holes.
Signs worth acting on include:
- Leaks through a covered membrane
- Patched roofs that still leak
- Leaks at pipes, outlets or fixings
- Gaps at membrane joints
If you let a flat or house near Hook station, flat roofs on let property tend to be checked only when they fail, which is the costly way round.
Questions to ask before booking
- Whether VAT is in the quoted price
- How long they’ve been surveying roofs
- What exactly goes into their report
- What happens after the report arrives