Greater London · London and the South East
High Barnet Electronic Leak Detection
Electronic leak detection to pinpoint holes in flat roof membranes in High Barnet, carried out by an experienced roof surveyor. You get a clear written report with photographs.
- Leaks through a covered membrane
- A flat roof leak that can’t be traced
- Gaps at membrane joints
About our electronic leak detection in High Barnet
Some flat roofs can’t be tested electronically. Certain membranes conduct electricity, and some build-ups lack the layer the test needs below the membrane. We will say if ELD won’t work on your roof before any testing. Any details you have about the membrane and build-up help us decide, including drawings, specifications or the roofer’s paperwork. It avoids arranging a test that cannot give results. Common reasons to book are new membranes needing a check before handover and holes left by work on the roof, on liquid-applied waterproofing, flat roof membranes and green roofs.
Offices, shops and blocks of flats across London often have large flat roofs with plant, rooflights and walkways. Each pipe, upstand and fixing through the covering is a possible weak point. For a building in High Barnet, access is agreed with whoever manages the roof before the visit. Rooflights, plant supports and pipe entries are common places for a membrane to fail.
We write the report in plain English, so you do not need to be a roofer to follow it. Each point is backed by a photo where possible.
- Place
- High Barnet (EN5)
- Region
- Greater London
- Prices
- Quoted for your roof
- Reports
- Written, with photos, emailed to you
- Survey days
- Weekdays, Saturdays and Sundays
- Cover
- Professional indemnity and public liability
- Call
- 07833 053749
- Page updated
- 27 October 2026
For landlords and managing agents
Any of our surveys can be booked by landlords, agents and building managers in High Barnet. For a price for a let property or a block, call 07833 053749 or send us an email.
If the property is let, the agent or a tenant can let us in. Surveys run on weekdays, Saturdays and Sundays, which helps when tenants work during the week.
What affects the price in High Barnet
We confirm the price for your roof before you book. This is what makes a difference:
- Chimneys, valleys, parapets and other details
- The size of the roof
- The height of the building and how the roof can safely be seen
- The number of roofs, including extensions and garages
The cost of a survey depends on the roof: its size, its height, how many sections it has and how it can be reached and seen safely. We quote electronic leak detection for each roof, as the method and time depend on the roof.
Booking your survey
You do not need to know any roofing terms. Just let us know:
- How the loft is reached, if there is one
- Why you want a survey: buying, a leak, a storm or new work
- Pictures from the garden or a window, if you have them
- Your timetable, such as an exchange date
Buyers should book once an offer has been accepted, so there’s time to use the report before exchange. Otherwise, simply phone 07833 053749 or send us an email whenever suits you.
The survey, step by step
Once we’ve finished looking, we write up our findings as a written report with photos, sent to you by email. As for time on site, it typically takes a time that depends on the size of the roof and how it’s built, which we’ll explain when we quote. In a London area like High Barnet, the main things to sort out are parking and access: let us know about parking, the floor the property is on, any shared entrance and loft access. We then look at everything that’s safely in view from the ground, windows, the loft and, where it’s safe, the roof itself.
- 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.
Preparing for the visit
- Keep pets in another room
- If you are buying, check with the agent that we can get in
- Gather any invoices or paperwork from past roof work
Book a survey
We survey roofs on weekdays, Saturdays and Sundays. To arrange a day that suits you, phone 07833 053749 or email us with the address and the days you’d prefer.
Read more
Can I check my roof myself?
You can learn a lot from ground level. Binoculars help you spot slipped slates or tiles, gaps along the ridge and a leaning stack. Please do not climb up for a closer look.
Look up at the roof after a storm, from ground level: broken slates or tiles in the garden, gaps along the ridge or loose lead are signs to note. Leave anything above ground level to a survey.
Why it is worth a survey now in High Barnet
Leaks left running can wet the insulation and deck. Finding the breach sooner limits that. Many older London roofs have only old felt under the slates, or no underlay at all, so once the slates or flashings let water past, little stops it reaching ceilings. Left unchecked, water soaks into timber and plaster and the damage spreads.
Larger roofs, taller buildings and commercial roofs take longer, so the price reflects that. The price is confirmed before booking.
Why book with us
- Surveys on any day of the week
- Every finding written up with photos
- 5,000+ surveys completed
- Drone and thermal imaging surveys available
Practical tips
Here are a few things we’d tell any owner, before and after a survey:
- Consider ELD before paving or planting goes on
- Use boards when working on the roof
- Tell us about the membrane and build-up if you know it
- Keep a note of leaks after rain
Questions about the results are welcome. We will explain what was found and what it means.
ELD before paving, ballast or planting goes on is worth considering. It is easier to find holes before more layers are added.
Nearby places to High Barnet
More services for High Barnet
Questions from High Barnet
Does a conservation area affect roof work in High Barnet?
Start with Historic England’s list for listing and your council for conservation areas. Either can affect what roof work is allowed, so it is worth checking before planning any.
Do you carry out roof surveys in High Barnet?
Yes. Our area covers London and the South East, and High Barnet is part of that. Just phone 07833 053749 or drop us an email and let us know about the property, and we’ll talk through which survey suits.
Which days do you carry out surveys?
Visits run seven days a week in the daytime, which suits people who work during the week. Just say which days work for you.
Can you give me structural calculations?
No. We note visible signs such as sagging or deflection, but we do not carry out calculations or give an engineer’s opinion. Where an engineer is needed, we say so in the report.
Will you fly a drone over my roof?
Where it helps and it is safe, yes. Flights depend on the weather on the day and airspace rules, and we check for restrictions near airports before flying. We hold a CAA Flyer ID and Operator ID.
Does ELD work under paving or planting?
On some roofs, yes. Covered roofs limit the methods we can use so we look at the roof first.
What’s in the survey report?
It works through the roof part by part, in writing and with photos. Points are put with the most urgent first where relevant.
Electronic leak detection around High Barnet
Wyllyotts Manor, about 2.9 miles north, is one of the historic houses in the wider area around High Barnet. If yours is one of the older homes, expect a mix of original materials and later repairs on the roof. Outer London has plenty of Victorian and Edwardian terraces with slate roofs, but also a great many interwar semis, frequently with hipped roofs in clay or concrete tiles. If your home in High Barnet is one of them, bay roofs, hips and later dormers each have their own details. Alongside them, flat-roofed extensions, dormers, garages and commercial units are common almost everywhere.
If you look after a shop, office or commercial unit, for instance near Spires Shopping Centre, flat roofs over shops and units are easy to forget until water comes through a ceiling. Parking in High Barnet, as in most of London, takes a little planning: a visitor permit or a nearby bay makes the day easier, as a space near the door cannot be promised. For site and facilities teams at buildings such as Foulds School, a large flat roof with plenty of outlets and rooflights has many places where a membrane can fail.
High Barnet is about 1 mile north-west of Barnet, in Greater London. High Barnet gets the same service as everywhere else we work: a careful look at what can be seen safely, photographs and a clear written report. Our Greater London coverage includes High Barnet and the places around it. London is in our area too.
We survey roofs across EN5 for electronic leak detection. Whether your property is on Byng Road, Park Road and Kings Road or anywhere close by, we can help. With the A1081 close by, High Barnet is easy for us to reach for electronic leak detection. Other places close to High Barnet include Hadley (1 mile east), Arkley (1 mile south-west), Kitts End (1 mile north), Totteridge (1 mile south) and Rowley Green (2 miles west). Further out, we also cover London (12 miles south-east), City of Westminster (10 miles south), Marylebone (10 miles south), Kensington (11 miles south), St Pancras (10 miles south-east) and Shoreditch (11 miles south-east).
Near you in High Barnet
Typical jobs here are in homes near Susi Earnshaw Theatre School, The White Lion pub and Queen Elizabeth's School and the streets around them. For rail, the closest station is Hadley Wood station, about 1.6 miles north-east. Well-known places in the area include Spires Shopping Centre (less than half a mile east) and Barnet General Hospital (0.5 miles south-west). The countryside around High Barnet includes Barnet Countryside Centre and Darland's Lake.