Greater London · London and the South East
Electronic leak detection in Leaves Green, Greater London
Electronic leak detection across Leaves Green, backed by more than 20 years’ experience. You get a clear report with photos.
- Damp inside with no sign on the roof
- Gaps at membrane joints
- Leaks through a covered membrane
Do you need electronic leak detection in Leaves Green?
Other trades on the roof can puncture the waterproofing. Fixings, equipment and foot traffic can leave small holes.
We are frequently asked to look at:
- Leaks at pipes, outlets or fixings
- Gaps at membrane joints
- Damage from equipment installers
- Patched roofs that still leak
Anyone responsible for a site like Meridian High School will know that ponding and blocked outlets on a wide flat roof are worth catching before the next wet season.
What to check before booking
- Do they have a CAA Flyer ID and Operator ID for drone work?
- Which viewpoints they use to see the roof
- Is there a chance to talk the report through?
- What they won’t be able to tell you
Electronic leak detection for homes and businesses in Leaves Green
A leak in a flat roof often shows up a long way from where the water gets in. That makes leaks hard to trace by eye. 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. We survey flat roof membranes, roof terraces and balconies and single-ply roofs, and people most often book us about new roofs to check before paving or planting and damp inside with no sign on the roof.
London has a lot of flat roofs: rear additions, dormers, roof terraces and the roofs of blocks and offices. Coverings range from felt and asphalt to EPDM rubber, GRP fibreglass and single-ply membranes, each with its own weak points. In Leaves Green, as anywhere in London, the right approach depends on what the roof is made of. Older flat roofs are frequently felt or asphalt, newer ones rubber or GRP.
If any part of the flat roof membrane couldn’t be seen safely, we say so in the report. That way, it is clear what was covered and what wasn’t, and what we’d suggest next.
- Where
- Leaves Green (BR2)
- Region
- Greater London
- Cost
- Quoted for your roof
- Your report
- A written report with photos, by email
- When we survey
- Weekdays and weekends
- Cover
- Professional indemnity and public liability
- Call
- 07833 053749
- Last updated
- 27 October 2026
Also near Leaves Green
Also in Leaves Green
Your questions about electronic leak detection in Leaves Green
Do you cover Leaves Green?
Yes. Our area covers London and the South East, and Leaves Green is part of that. You can call 07833 053749 or drop us an email with the address and a few details, and we’ll talk through which survey suits.
Is my home in Leaves Green listed or in a conservation area?
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.
Will you go up on the roof?
Only when it is safe. Safe viewpoints, the roof space and a drone where applicable cover most of what’s needed.
How fast do I get the report?
Basic reports arrive within 48 hours, Standard reports in 24–48 hours and Premium reports on the same day. Each one is emailed, ready to forward.
Does the weather affect the survey?
A survey can normally go ahead in light rain, and it can even help show where water is getting in. Heavy rain or strong wind can ground a drone and make the roof unsafe, so we’ll agree a new date if the weather isn’t suitable.
What does the report include?
It works through the roof part by part, in writing and with photos. The most urgent items are made clear.
Do you look in the roof space?
Yes, where the survey calls for it and there is safe access. We look for staining, damp, daylight and signs of movement, as far as the space allows.
Tips from our surveys
From years of surveys, a few habits stand out:
- Record dates and spots where water appears
- Consider ELD before paving or planting goes on
- Act on new leaks promptly
- Find the breach before more patching
The report records each breach location with photos. Your roofer uses it to carry out repairs.
Keep people off the flat roof unless they need to be there. Many breaches come from foot traffic.
What this survey cannot tell you
A survey is a careful look at the flat roof membrane, but it can’t do everything. Its limits include:
- Roofs whose membrane or build-up is not suitable
- Areas we cannot reach or that cannot be tested
- Leaks from plumbing or windows
If in doubt, call 07833 053749 or drop us an email and we’ll suggest the right survey before you book. What a survey covers and doesn’t.
What we check
- Commercial flat roofs
- Roof terraces and balconies
- Single-ply roofs
- Liquid-applied waterproofing
- Green roofs
- Flat roof membranes
How the survey works
Before we start, tell us why you’ve booked: a purchase, a leak, a storm, new work or simply peace of mind. It helps us focus on what matters most to you. Most visits take longer on a large roof than a small one, and the build-up of the roof makes a difference too. In Leaves Green, visits are available on weekdays and at weekends. It helps if you can point us to a visitor permit or a nearby bay, and to clear a path to the loft hatch. A back bedroom window can be the best vantage point for a rear addition, so we may ask to use one.
- You tell us 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.
- The membrane is tested and breaches are found.
- A report with photographs shows where each breach is.
Before we arrive
- Point out any leaks or damp patches
- Buyers: confirm access with the estate agent or seller
- Unlock side gates and any roof access doors
Getting a price
Buyers should book once an offer has been accepted, so you have the findings in time to act on them before you exchange. Otherwise, simply phone 07833 053749 or use the contact form whenever suits you.
Related advice
Why get it checked now?
Some flat roof leaks come from walls or details. Testing shows whether the membrane is breached so attention can go to the right place. Behind a London parapet, a blocked gutter can sit full of water without anyone seeing it. When the stain finally shows, the damage underneath is often older than it looks.
To find out what your survey will cost, call 07833 053749 or email us and let us know about the roof. We will confirm the figure before booking.
What you get with us
- Over 5,000 surveys carried out
- PI and public liability insurance
- Independent findings on the roof’s condition
- Thermal imaging and drones used where they help
What electronic leak detection looks like in Leaves Green
Further from the centre, London’s housing takes in interwar semis with hipped roofs in clay or concrete tiles as well as slate-roofed terraces. Hips, bay roofs and later loft conversions are typical of those semis, if your home is one of them. Next to the main roofs there is normally a flat roof somewhere, whether on an extension, a garage or a commercial unit. About 1.1 miles east lies Down House, a reminder of how long the area around Leaves Green has been built on. Older homes in the wider area often have features worth a closer look, such as lead valleys, tall stacks and roofs that have been patched over the years, and any change of roofing material on a listed home needs checking with the council first.
For a London address like Leaves Green, it helps to know about controlled parking before the day. Landlords with a home close to Hayes (Kent) station may find that flat roofs on let property tend to be checked only when they fail, which is the costly way round.
Leaves Green is about 4 miles south of Bromley, in Greater London. From houses to flats and shops in Leaves Green, we can survey the roof. Leaves Green is one of the towns and villages in Greater London where we work. There’s also a page for London.
Electronic leak detection in BR2 work the same way as everywhere else we cover. If you need electronic leak detection at a property on Ashmore Lane and Main Road or a nearby road, we can help. Neighbouring places we cover for electronic leak detection include Farthing Street (1 mile north-east), Downe (1 mile east), Nash (1 mile north-west), Luxted (1 mile south-east) and Keston (2 miles north). Larger places within reach include London (12 miles north-west), City of Westminster (15 miles north-west), Marylebone (15 miles north-west), Kensington (15 miles north-west), St Pancras (14 miles north-west) and Shoreditch (14 miles north).
Local landmarks in Leaves Green
In Leaves Green, that means homes and buildings near The Kings Arms and South Park and the streets around them. Leaves Green’s nearest station is Hayes (Kent) station, roughly 2.8 miles north. A little further out are Bethlem Museum of the Mind (3 miles north) and Princess Royal University Hospital (2.2 miles north-east). The countryside around Leaves Green includes Nore Hill and West Kent Golf Course nature reserve.
What you can safely check yourself
What you can’t do safely is get up close. Slates, tiles, flat roofs and rooflights can give way. That’s where a survey comes in, using safe viewpoints and a drone where it applies.
A DIY look is useful, but it isn’t a survey. From ground level, valleys, flashings and the backs of chimneys are frequently out of sight.