Greater London · London and the South East
Electronic leak detection in Old Town, Greater London
Electronic leak detection in Old Town from an independent, experienced roof surveyor. More than 20 years and over 5,000 surveys.
- New roofs to check before paving or planting
- Breaches hidden under paving or planting
- Leaks through a flat roof with no obvious cause
Common roof problems in Old Town
Repeated leaks after repairs suggest the real breach hasn’t been found. ELD can locate the breach more precisely.
Most people get in touch after spotting one of these:
- Leaks that return after repairs
- New membranes needing a check before handover
- Leaks through a covered membrane
- Leaks showing away from the breach
Anyone responsible for a site like The Minster Nursery and Infant School will know that ponding and blocked outlets on a wide flat roof are worth catching before the next wet season.
Before you book any roof surveyor
- How soon the report will arrive
- Whether the inside of the roof is included
- Is there a chance to talk the report through?
- Whether the price includes VAT
How electronic leak detection works in Old Town
Water can travel under a flat roof membrane before it shows inside. So the stain inside rarely sits under the hole. ELD tests the waterproofing directly and locates the breach. We test and report and leave the repair to your roofer. On a suitable roof, it takes the guesswork out of finding the hole. We then send you the results in a written report. We’re frequently asked to look into gaps at membrane joints and leaks through a flat roof with no obvious cause, on flat roof membranes, liquid-applied waterproofing and commercial flat roofs.
London has a lot of flat roofs: rear additions, dormers, roof terraces and the roofs of blocks and offices. They’re covered in felt, asphalt, EPDM rubber, GRP fibreglass or single-ply membranes, and each fails in its own way. Which one is on a roof in Old Town shapes how it is checked. Many older flat roofs are felt or asphalt, and many newer ones EPDM rubber or GRP.
If any part of the flat roof membrane couldn’t be seen safely, we say so in the report. You’ll know exactly what was inspected and what wasn’t, and what we’d suggest next.
- Location
- Old Town (CR0, CR9, CR90)
- Region
- Greater London
- Price
- Quoted for your roof
- Report
- A written report with photos, by email
- Survey days
- Weekdays, Saturdays and Sundays
- Cover
- Professional indemnity and public liability
- Phone
- 07833 053749
- Page updated
- 27 October 2026
Places near Old Town
Other services in Old Town
Tips that help
Most of what helps is simple and safe from ground level. Our suggestions:
- Do not let outlets block
- Share any drawings of the roof
- Get leaks traced quickly
- Limit access to the roof
Once repairs are made, the roof can be tested again if you want to check them if the build-up allows.
ELD before paving, ballast or planting goes on is worth considering. Finding breaches is simpler at that stage.
Old Town questions
Does a conservation area affect roof work in Old Town?
You can check whether a building is listed on Historic England’s list, and your council can tell you if it is in a conservation area. Listed building consent is needed for changes that affect a listed building’s special interest, and conservation areas can limit changes of roofing material.
Can you look at the flat roof of a hotel or office near Old Town?
Yes, we cover commercial roofs as well as homes. Access to the roof is sorted out with whoever manages the building before the day.
How is ELD priced?
We quote electronic leak detection for each roof, as the method and time depend on the roof. The price depends on the roof’s size and build-up. To get a quote, call 07833 053749 or email us.
Do you climb onto every roof?
Not always. Some roofs are too steep or fragile to walk on safely. Safe viewpoints, the loft and a drone where it applies let us see the rest.
Is the repair part of the test?
No, our part is finding the breaches. The report gives your roofer the locations.
Do I need to be at home?
It depends on what we need to see. Inside the building and in the loft, we need someone to let us in; we’ll agree the details when you book.
What does electronic leak detection do?
The waterproofing membrane normally stops an electrical current, so wherever there is a hole, it passes through. That’s how we locate breaches you cannot see.
Roof by roof
Liquid-applied waterproofing
Pinholes in a coating can let water through. ELD can help locate them on suitable roofs.
Bituminous membranes
Bituminous roofs often have laps and old repairs where breaches occur. Testing depends on the roof.
The survey, step by step
When we arrive, we start by asking what you’ve noticed and what you want to find out. After that, we check everything we can see safely. The survey normally takes a time that depends on the roof’s area and construction, which we set out in the quote. In a London area like Old Town, the main things to sort out are parking and access: let us know about permits, visitor bays or off-street space, which floor the property is on and how to get into the loft. We then look at what can safely be seen from the ground, windows, the loft and, where it is safe, the roof itself.
- We ask about the roof, its age, its membrane and where leaks appear inside.
- We check that the membrane and build-up suit electronic leak detection.
- We pick the low-voltage or high-voltage method that suits the roof.
- The roof is tested and any breaches are located.
- The breaches are recorded with photographs in a report for your roofer.
Before the survey
- Have keys ready for side gates, garages or roof access doors
- Find any records of previous roof work
- Mention any parking restrictions on your street
Getting a price
Surveys can be booked for weekdays, Saturdays or Sundays. To find a date that works for you, ring 07833 053749 or email us with the address and the days you’d prefer.
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What electronic leak detection looks like in Old Town
Addington Palace, about 3 miles east, is one of the historic houses in the wider area around Old Town. Period homes nearby can have lead valleys, tall chimneys and a patchwork of past repairs, and a listed home or one in a conservation area may need consent for changes of material. Outer London has plenty of Victorian and Edwardian terraces with slate roofs, but also a great many interwar semis, often with hipped roofs in clay or concrete tiles. Hips, bay roofs and later loft conversions are typical of those semis, if your home is one of them. Mixed in with those pitched roofs are a good many flat ones, over rear extensions, dormers, garages and shops.
For hotels and guest houses around Old Town, a roof problem found early is far less disruptive than one found by a guest, so it is worth knowing the roof’s condition. If you own a rental within reach of West Croydon station, the flat roof over a let home is worth a look before it becomes a tenant complaint.
Old Town is about 1 mile north-west of Croydon, in Greater London. Whether the building in Old Town is a house, a flat or a commercial unit, we can survey the roof. Our Greater London coverage includes Old Town. For surveys nearby, see our London page.
Electronic leak detection in CR0, CR9 and CR90 work the same way as everywhere else we cover. Local streets include Park Lane, Fell Road and Abbey Road, all of which we cover. We also cover Waddon (1 mile south-west), Broad Green (1 mile north), Beddington (1 mile west), Bandonhill (1 mile south-west) and Russell Hill (2 miles south-west). Within a short drive, we also cover London (9 miles north), City of Westminster (10 miles north), Marylebone (10 miles north), Kensington (10 miles north-west), St Pancras (11 miles north) and Shoreditch (11 miles north).
Landmarks near Old Town
We work in homes and buildings around Rutherford School, The Gun Tavern and St Andrew's CofE School, among other places. There’s a railway station in Old Town itself: West Croydon station. Other landmarks nearby include Croydon University Hospital (1.2 miles north) and Croydon Airport Visitor Centre (1.3 miles south-west). Green spaces nearby include Roundshaw Downs and Duppas Hill.
What electronic leak detection does not cover
A survey is a proper look at the flat roof membrane, but it can’t do everything. The main limits are:
- Areas we cannot reach or that cannot be tested
- Some conductive membranes
- How wet the insulation is
If in doubt, phone 07833 053749 or email us and we will suggest the right survey before you book. What a survey covers and doesn’t.
What this survey covers
- Liquid-applied waterproofing
- Commercial flat roofs
- Single-ply roofs
- Roof terraces and balconies
- Flat roof membranes
- Green roofs
Prices for electronic leak detection in Old Town
Every roof is different, so prices are confirmed before booking. These are the things that affect it:
- How many separate roofs there are, such as extensions, dormers and garages
- Whether thermal imaging or a drone is needed
- How big the roof is
- Whether it is a home or a commercial building
To find out what your survey will cost, phone 07833 053749 or email us with the address and a few details. We will confirm the figure before booking.
Booking your survey
These details help when you get in touch:
- What made you get in touch
- How the loft is reached, if there is one
- Pictures of the roof from a safe spot, if you have them
- Your timetable, such as an exchange date
To arrange a survey, ring 07833 053749 or email us and let us know the address and what’s prompted the survey. We will confirm the price before booking.