Greater London · London and the South East
Electronic leak detection in Nash, Greater London
We take a careful look at the flat roof membrane at your property in Nash, and put it all in a report with photographs.
- Leaks through a covered membrane
- Patched roofs that still leak
- Water coming in under a flat roof
Electronic leak detection in Nash
Our ELD testing covers flat roofs in Nash and the rest of London and the South East. Testing normally takes more time on a big roof than a small one, and the build-up of the roof makes a difference too. We quote electronic leak detection for each roof, as the method and time depend on the roof. The results come in a written report with photos. Common reasons to book are leaks under green or ballasted roofs and failed seams and laps, across green roofs, single-ply roofs and liquid-applied waterproofing.
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 Nash, as anywhere in London, the right approach depends on what the roof is made of. Many older flat roofs are felt or asphalt, and many newer ones EPDM rubber or GRP.
Most points in the report come with a picture, because a photo of a cracked flashing says more than a paragraph. Anything out of sight on the day is listed as such.
- Place
- Nash (BR2)
- Wider area
- Greater London
- Price
- Quoted for your roof
- Report
- Written, with photos, emailed to you
- When we survey
- Weekdays and weekends
- Cover
- PI and public liability insurance
- Telephone
- 07833 053749
- Page updated
- 27 October 2026
What affects the price in Nash
Prices always include VAT. What changes the price is:
- Commercial roofs and larger buildings
- Height and safe access
- The shape of the roof and its details
- The use of thermal imaging or a drone
What a survey costs comes down to the roof itself: how big it is, how high it is, the number of separate roofs and how safely it can be seen. We quote electronic leak detection for each roof, as the method and time depend on the roof.
Booking your survey
When you call or email, these details help:
- The type of building and roof, such as pitched or flat
- What made you get in touch
- Your postcode, so we can check access and travel
- Access details, like a loft hatch or a shared roof
We survey roofs on any day of the week. To find a date that works for you, phone 07833 053749 or drop us an email with the address and the days you’d prefer.
Why get it checked now?
Cutting open a flat roof to find a leak can cause more damage. Electronic testing finds the hole first so your roofer knows where to work. In a London terrace or conversion, a roof defect rarely stays your problem alone: a blocked parapet gutter or slipped slate can let water into the flat below or the house next door. Finding it early keeps the work smaller.
Every price we give includes VAT. Electronic leak detection is quoted for your roof, because the method depends on the roof. We confirm the exact price before booking.
Why choose Independent Roof Survey in Nash
- 20+ years’ experience
- Visits on any day of the week
- Customer satisfaction of 98%
- Every finding written up with photos
See how roof surveys are priced or what we found on two real jobs.
Electronic leak detection in Nash: local notes
Alongside Victorian and Edwardian terraces, outer London has a great many interwar semis, often with hipped roofs of clay or concrete tiles. Hips, bay roofs and later loft conversions are typical of those semis, if your home is one of them. Flat roofs on extensions, dormers, garages and business units are found alongside them almost everywhere. The wider area around Nash has a long history of building, with Down House about 2.4 miles south-east. Older roofs in the wider area can hide decades of patch repairs, so the detail matters, and a listed home or one in a conservation area may need consent for changes of material.
Landlords with a home close to Hayes (Kent) station may find that flat roofs over rear additions and dormers in rented property are worth checking between tenancies. If you run a business near The Mall, outlets and upstands on commercial flat roofs are the places to check before trouble starts.
Nash is about 3 miles south of Bromley, in Greater London. We carry out electronic leak detection in Nash for houses, flats, blocks and commercial buildings, with a written report and photographs every time. Our Greater London coverage includes Nash. We also survey roofs in London.
Surveys in BR2 are booked the same way as anywhere else. We cover properties on Nash Lane and North Pole Lane and the roads around them. Other places close to Nash include Keston (1 mile east), Leaves Green (1 mile south-east), Hayes (1 mile north), New Addington (2 miles south-west) and Farthing Street (2 miles south-east). Within a short drive, we also cover London (11 miles north-west), City of Westminster (13 miles north-west), Marylebone (13 miles north-west), Kensington (14 miles north-west), St Pancras (13 miles north-west) and Shoreditch (12 miles north).
Landmarks near Nash
Typical jobs here are in homes near The Greyhound pub, All Saints Catholic School and Coney Hall Recreation Ground and the streets around them. For rail, the closest station is Hayes (Kent) station, roughly 1.4 miles north. Other landmarks nearby include The Mall (3.2 miles north) and Bethlem Museum of the Mind (1.8 miles north). Open spaces near Nash include Hutchinson's Bank and Summer Hill.
Common roof problems in Nash
New membranes can have defects from installation. Testing before the roof is covered or handed over helps find them.
People normally book a survey when they’ve noticed one of these:
- Failed seams and laps
- Patched roofs that still leak
- Leaks at pipes, outlets or fixings
- Holes left by work on the roof
If you live in an older home near Keston Parish Church, later flat-roofed additions are common on older houses, and their edges and upstands often show the first signs of wear.
Questions to ask before booking
- How long they’ve been surveying roofs
- Are they insured for the work?
- If they fly a drone, whether they hold a CAA Flyer ID and Operator ID
- Which parts of the roof they’ll actually see
Also in Nash
Surveys for landlords and agents in Nash
Letting agents can arrange access with tenants, at a time agreed beforehand. We survey on weekdays and at weekends, which can make access easier.
Landlords, agents and building managers in Nash and across Greater London can book any of our surveys. To discuss a property or a block, phone 07833 053749 or send us an email.
What we do, step by step
There is not much for you to do on the day. Show us any stains, drips or problem areas you know about, and we will get on with the inspection. A typical survey takes longer on a large roof than a small one, with the construction of the roof playing a part too. London terraces rarely offer a view of the whole roof from one spot, so a visit in Nash moves between viewpoints: the pavement, upstairs windows, the loft and any safe spot at the back. Shared stairs or a basement flat? Tell us who holds the keys.
- 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.
- We test the membrane and find where current is passing through it.
- We send a report with photos of each breach so your roofer can repair it.
How to prepare
- Make a note of anything you’d like us to look at
- Clear the way to the loft hatch
- Agree roof access with the managing agent if it’s shared
Booking a survey
A quick phone call is typically the easiest start: phone 07833 053749 or drop us an email and we’ll ask a few questions about the roof. The price is agreed before a date is set.
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Questions from Nash
Is parking a problem for a survey in Nash?
Normally it’s manageable with a little notice. Let us know the parking rules on your street and we will work around them.
Is Nash in the area you cover?
Yes. We cover the whole of London and South East England, and Nash is part of that. Just call 07833 053749 or drop us an email and tell us about the property, and we’ll talk through which survey suits.
How many surveys have you done?
We have completed more than 5,000 surveys, across 20+ years of surveying roofs, with 98% customer satisfaction.
Does electronic leak detection work on all membranes?
That depends on the roof’s membrane and layers. Share any details you have and we will check whether ELD will work.
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 as you book.
What is electronic leak detection?
The waterproofing membrane normally stops an electrical current, so wherever there’s a hole, it passes through. That lets us find breaches that are too small to see.
Will you photograph what you find?
Yes. Photographs are taken throughout the survey, and they go into the written report alongside our recommendations.
Before and after the survey
Getting the most from electronic leak detection starts before we arrive and carries on afterwards. Some tips:
- Check new waterproofing before handover
- Act on new leaks promptly
- Record dates and spots where water appears
- Check trades protect the waterproofing
You receive a report showing where each breach was found, with photographs. Pass it to your roofer to repair the breach points.
Limit foot traffic on flat roofs. Feet and dropped tools are a common cause of holes.