Greater London · London and the South East
New Barnet Electronic Leak Detection
We carry out electronic leak detection in New Barnet and the rest of Greater London. We survey on any day of the week.
- Holes around roof penetrations
- A flat roof leak that can’t be traced
- New membranes needing a check before handover
Electronic leak detection in New Barnet: what you get
Not every flat roof suits electronic testing. Certain membranes conduct electricity and some roofs do not have a suitable layer beneath the membrane. If your roof is not suitable, we’ll tell you before any testing. Any details you have about the membrane and build-up help us decide, such as drawings or specifications. It avoids arranging a test that cannot give results. We survey green roofs, liquid-applied waterproofing and single-ply roofs, and the problems we’re asked to look at most are stains far from any visible defect and breaches around outlets and penetrations.
Commercial and residential blocks across London often have big flat roofs with plant, rooflights and access walkways. Every penetration and upstand is a place where a membrane can fail. In New Barnet, roof access is agreed with the building manager or owner beforehand. Rooflights, plant supports and pipe entries are common places for a membrane to fail.
Nothing in the report is left vague: if work is needed, the report says so clearly.
- Where
- New Barnet (EN5, EN4, N20)
- Wider area
- Greater London
- Cost
- Quoted for your roof
- Your report
- A written report with photos, by email
- When we survey
- Weekdays, Saturdays and Sundays
- Insurance
- Professional indemnity and public liability
- Call
- 07833 053749
- Last updated
- 27 October 2026
Flat and commercial roofs around New Barnet
With Wyllyotts Manor about 3.8 miles north, New Barnet sits in an area with a long building history. On older houses around here, roofs often carry the marks of earlier repairs, from replaced slates to new lead, and a listed home or one in a conservation area may need consent for changes of material. In outer London, interwar semis with hipped, tiled roofs sit alongside older slate-roofed terraces. Bay roofs, hip ridges and dormers from later loft conversions are the details that set these houses apart. Flat roofs fill the gaps in between, on extensions, garages, dormers and business premises.
For landlords with property near New Barnet station, flat roofs over rear additions and dormers in rented property are worth checking between tenancies. Take a building like St Mary's CofE Primary School: large flat roofs, common on schools and other public buildings, need their outlets, upstands and coverings checked regularly.
New Barnet is about 1 mile east of Barnet, in Greater London. We carry out electronic leak detection for homes and businesses in New Barnet. New Barnet is one of the towns and villages in Greater London where we work. We also survey roofs in London.
We survey roofs across EN5, EN4 and N20 for electronic leak detection and the streets around it. Local streets include York Road, Park Road and Henry Road, all of which we cover. We also cover the places around New Barnet: Barnet (1 mile west), Cockfosters (1 mile north-east), East Barnet (1 mile south-east), Underhill (1 mile west) and Whetstone (1 mile south). Further out, we also cover London (11 miles south), City of Westminster (9 miles south), Marylebone (9 miles south), Kensington (10 miles south), St Pancras (8 miles south) and Shoreditch (9 miles south-east).
Near you in New Barnet
Around New Barnet, our work takes us to homes and buildings near Trent School Cockfosters, East Barnet School and The Alexandra pub and the streets around them. There’s a railway station in New Barnet itself: New Barnet station. A little further out are Spires Shopping Centre (1.6 miles north-west) and Francis Skaryna Belarusian Library and Museum (2 miles south). Not far away are Greenhill Gardens and Darland's Lake.
Landlords, agents and block managers in New Barnet
Roof problems in a rented home affect tenants as well as the building. A survey helps you spot issues early and plan the work.
With a portfolio of properties, surveys can be booked for more than one address. To discuss a number of properties, ring 07833 053749 or send us an email with the addresses.
Also near New Barnet
More services for New Barnet
What affects the price in New Barnet
Every roof is different, so prices are confirmed before you book. These are the things that affect it:
- The roof’s overall size
- The use of thermal imaging or a drone
- Chimneys, valleys, parapets and other details
- The number of roofs, including extensions and garages
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 it can be reached and seen safely. Electronic leak detection is quoted for your roof, because the method depends on the roof.
Helping us price your survey
Here’s what helps us most when you contact us:
- Dates you’re working to, such as exchange
- Any marks or damp showing indoors
- Why you want a survey: buying, a leak, a storm or new work
- Where the property is, with the postcode
You can call us seven days a week. For a price or to book, phone 07833 053749 or drop us an email.
Roof by roof
Green and ballasted roofs
Testing before planting or ballast goes on is simpler.
EPDM rubber roofs
EPDM rubber roofs often last 30–50 years, but punctures and seam failures still happen.
Do you need electronic leak detection in New Barnet?
Work on the roof can damage a membrane. Fixings, equipment and foot traffic can leave small holes.
Most people get in touch when they’ve noticed one of these:
- Water coming in under a flat roof
- Leaking laps in the waterproofing
- Leaks through a covered membrane
- Stains far from any visible defect
Controlled parking zones are common in London, so mention any permit rules for New Barnet, along with any off-street space.
Questions to ask before you book
- What they won’t be able to tell you
- Which parts of the roof they’ll actually see
- How long the report takes to arrive
- Will the report include photos?
Honest limits
Every survey has limits, and we’d rather be clear about that before booking. Bear these in mind:
- Parts of the roof covered by fixed equipment
- Leaks from plumbing or windows
- Fixing the holes we find
If you are not sure which survey you need, ring 07833 053749 or drop us an email and we will give you a straight answer. What our survey covers.
What this survey covers
- Liquid-applied waterproofing
- Green roofs
- Flat roof membranes
- Commercial flat roofs
- Single-ply roofs
- Roof terraces and balconies
Common questions in New Barnet
Does a conservation area affect roof work in New Barnet?
Historic England’s list shows listed buildings, and the local council can tell you about conservation areas. 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 parking be tricky for a visit in New Barnet?
Sometimes, yes. Where there are permit zones, a visitor permit or nearby pay-and-display bay works well.
What will the report tell me?
It sets out what we found, why it matters and what we recommend, with photos throughout. It also says if any part of the roof couldn’t be seen safely.
How much does electronic leak detection cost?
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, ring 07833 053749 or send us an email.
Can every flat roof be tested?
ELD doesn’t suit every roof. Certain membranes are conductive and some roofs lack the layer the test needs. If your roof will not work, we’ll say so before testing.
Do you look in the loft space?
Yes, where the survey calls for it and there is safe access. Inside, we look for damp, staining, gaps and sagging.
How long does electronic leak detection take?
It normally takes more time on a big roof than a small one, with the construction of the roof playing a part too.
What happens on the day
A survey visit follows a simple order: we hear what you’ve seen, inspect the roof from each safe vantage point, take photographs as we go and make notes for the report. Most visits take a time that depends on the roof’s area and construction, and we’ll give you a guide when quoting. In New Barnet, 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.
- We start with what you know about the roof and the leak.
- We check whether the membrane and build-up suit ELD.
- The test method is chosen to suit the roof.
- We test the roof and locate any breaches.
- A report with photos shows where each breach is.
Getting ready for the survey
- Make sure pets are kept safely away
- If you are buying, let the agent know when we are coming
- Unlock side gates and any roof access doors
Getting a price
If you have photos of the roof, send them over. Take them safely from the ground or a window. To send them or to book, call 07833 053749 or email us.