Greater London · London and the South East
Electronic Leak Detection in Monken Hadley
Electronic leak detection in Monken Hadley and the rest of Greater London. Surveys run on any day of the week.
- Damp inside with no sign on the roof
- Leaks under green or ballasted roofs
- Repairs that haven’t stopped the leak
What electronic leak detection looks like in Monken Hadley
Outer London has a good many Victorian and Edwardian terraces with slate roofs, but also a great many interwar semis, often with hipped roofs in clay or concrete tiles. Bay roofs, hip ridges and dormers from later loft conversions are the details that set these houses apart. Mixed in with those pitched roofs are a good many flat ones, over rear extensions, dormers, garages and shops. About 2.4 miles north lies Wyllyotts Manor, a reminder of how long the area around Monken Hadley has been built on. 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.
For a London address like Monken Hadley, it helps to know about controlled parking before the day. If you let a flat or house near Hadley Wood station, a flat roof over a rented flat is easy to forget until the tenant reports a leak.
Monken Hadley is about 1 mile north-west of Barnet, in Greater London. Anywhere in Monken Hadley, we can come and survey your property, on a weekday, Saturday or Sunday. Monken Hadley is one of the towns and villages in Greater London where we work. We also survey roofs in London.
Postcode districts we cover here for electronic leak detection: EN5 and EN4. Local streets include Dury Road, Lucan Road and Bruce Road, and we cover them all. Monken Hadley sits on or near the A1081. Nearby, we also carry out electronic leak detection in Underhill (1 mile south), Hadley Wood (1 mile east), Barnet (1 mile south-east), Bentley Heath (1 mile north) and New Barnet (2 miles south-east). We also work in nearby towns such as London (12 miles south), City of Westminster (10 miles south), Marylebone (10 miles south), Kensington (11 miles south), St Pancras (10 miles south) and Shoreditch (11 miles south-east).
What’s near Monken Hadley
We work in homes and buildings around Queen Elizabeth's Girls' School, Susi Earnshaw Theatre School and King George's Fields (Monken Hadley). The closest station to Monken Hadley is Hadley Wood station, roughly 1 mile north-east of the centre. Other landmarks nearby include Barnet General Hospital (1 mile south-west) and Spires Shopping Centre (0.5 miles south). Not far away are Hadley Green and Darland's Lake.
Electronic leak detection for homes and businesses in Monken Hadley
ELD is a way of pinpointing breaches in a flat roof’s waterproofing membrane. It works with an electrical current that passes through the membrane only where there’s a breach. It can find holes too small to spot by eye so your roofer knows exactly where to repair. The results come in a report with photos. We survey single-ply roofs, liquid-applied waterproofing and roof terraces and balconies, and the problems we’re asked to look at most are leaking laps in the waterproofing and damp inside with no sign on the roof.
Water getting through a flat roof in London can travel under the covering and appear some way from the hole. Upstands against parapets, outlets and the edge where flat meets pitched are common entry points. In a converted house in Monken Hadley, the roof above may belong to the building rather than one flat.
The report doesn’t just list problems. For each finding, it explains what it is, why it matters and what we’d recommend, so you can plan your next steps.
- Where
- Monken Hadley (EN5, EN4)
- Wider area
- Greater London
- Cost
- Quoted for your roof
- Reports
- Emailed report with photos and recommendations
- Survey days
- Weekdays and weekends
- Insured
- Professional indemnity and public liability
- Call
- 07833 053749
- Page updated
- 27 October 2026
Do you need electronic leak detection in Monken Hadley?
Other trades on the roof can puncture the waterproofing. Engineers fitting equipment, solar panels or aerials may leave damage behind.
Here are some of the things we see often:
- Leaks under green or ballasted roofs
- Patched roofs that still leak
- Damage from equipment installers
- New membranes needing a check before handover
If you live in an older home near Parish Church of St Mary the Virgin, flat-roofed rear additions and dormers added over the years are worth checking.
Before booking any roof surveyor
- How they’ll see the roof: from ground level, the loft, the roof or by drone
- Do they have a CAA Flyer ID and Operator ID for drone work?
- What follow-up you get after the report
- Whether the loft is part of the inspection
FAQs for Monken Hadley
Is my home in Monken Hadley listed or in a conservation area?
Your council is the best source, with Historic England’s list for listed buildings. A change of roofing material may need consent in either case, and councils can also use Article 4 directions.
Do you carry out roof surveys in Monken Hadley?
Yes. We cover the whole of London and South East England, and Monken Hadley is part of that. You can phone 07833 053749 or email us with the address and a few details.
Are you insured?
Every survey is covered by professional indemnity and public liability insurance, and details are available on request.
How do I book a survey in Monken Hadley?
Just call 07833 053749 or use the contact form with the address. After a few questions, we confirm the price and fix a day, weekday or weekend.
Do I have to be there for the survey?
That depends on the survey. Inside the building and in the loft, we need someone to let us in.
Will you go up on the roof?
Only when it’s safe. Some roofs are too steep or fragile to walk on safely. We use safe viewpoints, the roof space and a drone where applicable, and the report records anything we couldn’t see.
When does the report arrive?
Report times are set by the package. Basic: within 48 hours. Standard: 24 to 48 hours. Premium: the same day. If you have a deadline, such as an exchange date, let us know when you book.
Different roofs, different checks
Green and ballasted roofs
Green roofs and ballasted roofs cover the waterproofing. Some methods can work through these layers, depending on the build-up.
Inverted and paved roofs
A terrace or paved roof hides the waterproofing. Whether it can be tested depends on the build-up.
Places near Monken Hadley
What else we do in Monken Hadley
How the survey works
There isn’t much for you to do on the day. Show us any stains, drips or problem areas you know about, and we’ll get on with the inspection. The survey itself takes as long as needed for the size of the roof and how it’s built, which we’ll explain when we quote. Many London properties are flats or terraces with no side access, so the back of the roof is frequently seen from upstairs windows, from inside or, where a flight is allowed, from the air. Mention any building rules, key holders or managing agents as you book.
- First, we confirm which roof areas are included.
- The surface is prepared for the chosen method.
- We work across the roof with the test equipment.
- We mark the breach locations in our records.
- The report is sent for your roofer to act on.
Before we arrive
- Make a note of anything you’d like us to look at
- Agree roof access with the managing agent if it is shared
- Leave side gates unlocked
How to book
Booking is simple: just ring 07833 053749 or send us an email and give us some details about the property and we’ll explain which survey suits. The price is agreed up front.
Related advice
Practical tips
These tips come from what we see on roofs every week, before and after a survey:
- Have roof specifications to hand
- Limit access to the roof
- Keep a note of leaks after rain
- Find the breach before more patching
If anything in the report is not clear, ask us. We will explain what was found and what it means.
Consider testing a new membrane before it is covered. Finding breaches is simpler at that stage.
What happens if roof problems are left?
Chasing a leak again and again is frustrating. A report showing the breach points gives your roofer a clear target. London’s older roofs often have bitumen felt underlay or none at all, so a slipped slate can soon mean water inside. Left alone, that means wet timbers and plaster, which is a far bigger job than the roof fault itself.
Bigger, taller and commercial roofs take more time to survey, so they’re priced to match. The price is confirmed before booking.
What you get with us
- PI and public liability insurance
- Over 5,000 surveys carried out
- Thermal imaging and drone inspection where they help
- A photo-illustrated written report
Read what a roof survey costs and what we found on two real jobs.
DIY checks: what’s safe
Watch the gutters in a downpour, from a window or the ground. Overflowing water can be a sign of a blockage or a gutter that has dropped.
If you have a loft with safe access, take a look inside. Use a torch and stay on the joists or boards, and look for staining, damp timber or daylight coming through.