Greater London · London and the South East
Bentley Heath Electronic Leak Detection
We carry out electronic leak detection in Bentley Heath and the rest of Greater London. Surveys run on weekdays and at weekends.
- Leaks through a covered membrane
- Waterproofing to test before it’s covered
- Stains far from any visible defect
Flat and commercial roofs around Bentley Heath
Further from the centre, London’s housing takes in interwar semis with hipped roofs in clay or concrete tiles as well as slate-roofed terraces. Bay roofs, hip ridges and dormers from later loft conversions are the details that set these houses apart. Next to the main roofs there’s typically a flat roof somewhere, whether on an extension, a garage or a commercial unit. Wyllyotts Manor, about 0.9 miles north, is one of the historic houses in the wider area around Bentley Heath. 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.
Shop and office owners around Spires Shopping Centre may find that a flat roof over a business is out of sight and out of mind until it leaks. Take an older house close to Church of King Charles and the Martyr: any flat roof added at the back or on a dormer is likely to be far younger, and less durable, than the main roof.
Bentley Heath is about 1 mile south-west of Potters Bar, in Greater London. We carry out electronic leak detection in Bentley Heath for houses, flats, blocks and commercial buildings, with a written report and photographs every time. Bentley Heath is one of the towns and villages in Greater London we cover for electronic leak detection. You can also see our page for London.
Here we cover the EN5 postcode area for electronic leak detection. Other places close to Bentley Heath include Potters Bar (1 mile north-east), Monken Hadley (1 mile south), Hadley Wood (2 miles south-east), Underhill (3 miles south) and Northaw Valley (3 miles east). Larger places within reach include London (13 miles south), City of Westminster (12 miles south), Marylebone (12 miles south), Kensington (13 miles south), St Pancras (11 miles south) and Shoreditch (12 miles south-east).
Local landmarks in Bentley Heath
Typical jobs here are in homes near King George's Fields (Monken Hadley), Dame Alice Owen's School and Duke of York pub and the streets around them. The closest station to Bentley Heath is Potters Bar station, roughly 1 mile north. Well-known places in the area include Barnet General Hospital (2.4 miles south) and Potters Bar Museum (0.9 miles north). Not far away are Furzefield Wood and Lower Halfpenny and Darland's Lake.
About our electronic leak detection in Bentley Heath
You get a report showing the location of each breach with photos. Your roofer can then repair those points rather than guessing. We don’t estimate repair costs; that is for your roofer to price. A retest after repairs can check the work if the build-up allows. Results come in a written report with photos. We survey flat roof membranes, roof terraces and balconies and commercial flat roofs, and common reasons people get in touch are leaks through a covered membrane and holes left by work on the roof.
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. For a building in Bentley Heath, access is agreed with whoever manages the roof before the visit. Plant bases, rooflights and cable entries are all places where water can get in.
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.
- Place
- Bentley Heath (EN5)
- Wider area
- Greater London
- Cost
- Quoted for your roof
- Your report
- A written report with photos, by email
- Appointments
- Weekdays, Saturdays and Sundays
- Cover
- PI and public liability insurance
- Call
- 07833 053749
- Last updated
- 27 October 2026
How the survey works
Time on site depends on the size and shape of the roof, but as a rough guide the survey takes more time on a big roof than a small one, and the build-up of the roof makes a difference too. You are welcome to ask questions while we are there. In a London conversion, the way into the roof space is often from a communal landing or the top flat. Where that is the case, access needs agreeing with whoever controls that landing. Otherwise, the visit in Bentley Heath runs like any other.
- First, we confirm which roof areas are included.
- We get the roof ready for testing.
- Testing runs across the agreed area.
- We mark the breach locations in our records.
- The report is sent for your roofer to act on.
Getting ready for the survey
- Dig out any old roof reports or invoices
- Leave a clear route to the loft
- Jot down any questions you want answered
Booking a survey
If you have photos of the roof, send them over. Take them safely from ground level or a window. To get started, call 07833 053749 or email us.
Related advice
What this survey can’t tell you
We only report whatever is safely visible on the day, so there are some things a survey can’t cover:
- Water entering through details rather than the membrane
- Sections we cannot safely access
- Repairing the breaches (that is for your roofer)
If you’re not sure which survey you need, ring 07833 053749 or drop us an email and we’ll give you a straight answer. What our survey covers.
What this survey covers
- Green roofs
- Flat roof membranes
- Roof terraces and balconies
- Liquid-applied waterproofing
- Commercial flat roofs
- Single-ply roofs
How we price electronic leak detection
A few things affect what a survey costs:
- Chimneys, valleys, parapets and other details
- Roof area
- The number of roofs, including extensions and garages
- Building height and the viewpoints available
Larger roofs, taller buildings and commercial roofs take longer, so they’re priced to match. The price is confirmed before booking.
What to tell us when you contact us
We will typically ask about:
- The style of property, from a terrace to a block
- Where the property is, with the postcode
- Photos of the roof, taken safely from ground level or a window
- Any deadline, like an exchange date
A quick phone call is usually the easiest start: ring 07833 053749 or drop us an email. You will have a price before anything is arranged.
Why get it checked now?
Repeated call-outs for the same leak add up. A report showing the breach points gives your roofer a clear target. 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. Dealing with it early is far less disruptive.
For a price for your roof in Bentley Heath, ring 07833 053749 or drop us an email with the address and a few details. The price is agreed before a date is set.
Why us?
- We hold a CAA Flyer ID and Operator ID
- Visits on any day of the week
- 98% of clients satisfied
- Thermal imaging and drone inspection where they help
Read what a roof survey costs or what we found on two real jobs.
Questions from Bentley Heath
Does a conservation area affect roof work in Bentley Heath?
For listing, use Historic England’s list; for conservation areas, ask the council. It matters most if you are planning to re-roof in a different material.
Is Bentley Heath in the area you cover?
Yes, Bentley Heath is one of the places we work. The survey and report are the same in Bentley Heath as anywhere else, and visits run on weekdays and weekends.
How quickly is the report sent?
That depends on the survey you book: Basic within 48 hours, Standard in 24–48 hours and Premium the same day. Reports are sent by email.
Can you tell me if my roof has asbestos?
No. Asbestos surveys and sampling aren’t something we do. The report may flag materials that could contain asbestos on buildings built or refurbished before 2000.
Does this replace a RICS home survey?
No. Our survey looks at the roof, not the whole building. For the rest of the building, a RICS home survey is a separate job.
Does ELD include fixing the breach?
No, the test finds the breaches and your roofer repairs them. Your roofer uses the report to target the repair.
How many surveys have you done?
We’ve been surveying roofs for over 20 years and have completed over 5,000 surveys.
Places near Bentley Heath
Other services in Bentley Heath
Signs you need electronic leak detection in Bentley Heath
Water travels under flat roof membranes. The leak may show some distance from where water gets in which makes it hard to find by looking.
A survey makes sense if you’ve noticed:
- Leaks through a flat roof with no obvious cause
- Waterproofing to test before it is covered
- Punctures from foot traffic or tools
- Leaks at pipes, outlets or fixings
Bentley Heath is in London, so parking needs planning: let us know about permits, visitor bays or off-street space when booking, as a space near the door can’t be promised.
Choosing a roof surveyor
- How they’ll see the roof: from ground level, the loft, the roof or by drone
- Whether any drone flown is registered with the CAA
- What follow-up you get after the report
- Their report turnaround times
Should I look at the roof myself first?
Keep a simple record: when leaks happen, ground-level photos and any past roof work. Send it with your enquiry.
Look up at the roof after a storm, from the ground: broken slates or tiles in the garden, gaps along the ridge or loose lead are signs to note. Do not go up yourself.