Greater London · London and the South East
Electronic Leak Detection in Hatch End
A careful look at the flat roof membrane at your property in Hatch End, and put it all in a written report with photos.
- Damp inside with no sign on the roof
- Leaks at pipes, outlets or fixings
- Failed seams and laps
What we do, step by step
The visit has one job: to see as much of the flat roof membrane as can be seen safely and record it clearly. Notes and photos go into the written report. The visit usually takes a time that depends on the roof’s area and construction, and we’ll give you a guide when quoting. In a London area like Hatch End, 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 ground level, windows, the loft and, where it is safe, the roof itself.
- We agree the area to be tested.
- The surface is prepared for the chosen method.
- Testing runs across the agreed area.
- Each breach found is located and recorded.
- The report is sent for your roofer to act on.
Before we arrive
- Have any questions written down, so nothing gets missed
- Let us know where we can park nearby
- Unlock side gates and any roof access doors
How to book
We survey roofs on weekdays, Saturdays and Sundays. To find a date that works for you, phone 07833 053749 or drop us an email.
Advice
Electronic leak detection for homes and businesses in Hatch End
Our ELD testing covers flat roofs in Hatch End and the rest of London and South East England. A visit typically takes more time on a big roof than a small one, and the build-up of the roof makes a difference too. Electronic leak detection is quoted for your roof, because the method depends on the roof. The results come in a written report with photos. If you’re worried about leaks that return after repairs and a flat roof leak that can’t be traced, a survey will tell you what’s going on, on liquid-applied waterproofing, commercial flat roofs and roof terraces and balconies alike.
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 Hatch End, 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 it makes sense without any roofing background. Each point is backed by a photograph where possible.
- Where
- Hatch End (HA5, HA2, HA3)
- Region
- Greater London
- Prices
- Quoted for your roof
- Your report
- A written report with photos, by email
- Survey days
- Weekdays, Saturdays and Sundays
- Cover
- Professional indemnity and public liability
- Call
- 07833 053749
- Page updated
- 27 October 2026
Towns and villages near Hatch End
More services for Hatch End
Different roofs, different checks
Inverted and paved roofs
A terrace or paved roof hides the waterproofing. Whether it can be tested depends on the build-up.
Liquid-applied waterproofing
Liquid waterproofing has no laps but holes and thin areas can occur. Suitability for ELD depends on the system.
Flat roofs in Hatch End
Outer London has plenty of Victorian and Edwardian terraces with slate roofs, but also a great many interwar semis, often with hipped roofs in clay or concrete tiles. If your home in Hatch End is one of them, bay roofs, hips and later dormers each have their own details. Mixed in with those pitched roofs are a good many flat ones, over rear extensions, dormers, garages and shops. Headstone Manor, about 1 mile south-east, is one of the historic houses in the wider area around Hatch End. Period homes nearby can have lead valleys, tall chimneys and a patchwork of past repairs.
Landlords with a home close to Hatch End station may find that the flat roof over a let home is worth a look before it becomes a tenant complaint. Parking in Hatch End, as in most of London, takes a little planning: tell us about permits, visitor bays or off-street space when booking.
Hatch End is about 4 miles south of Watford, in Greater London. We visit Hatch End as part of our work across Greater London. Our area takes in places right across Greater London. Our London page covers surveys nearby.
Every address in HA5, HA2 and HA3 is within our area for electronic leak detection, from the main roads to the quietest streets. Whether your property is on Love Lane, Moss Lane and Tudor Road or a nearby road, we can help. Close by, we survey roofs in Headstone (1 mile east), South Oxhey (2 miles north-west), Harrow Weald (2 miles east), Carpenders Park (2 miles north) and Belmont (2 miles east). Within a short drive, we also cover London (14 miles south-east), City of Westminster (11 miles south-east), Marylebone (11 miles south-east), Kensington (10 miles south-east), St Pancras (12 miles south-east) and Shoreditch (14 miles east).
Local landmarks in Hatch End
In Hatch End, that means homes and buildings near The Moon & Sixpence pub, Nower Hill High School and Headstone Manor Recreation Ground. The closest station to Hatch End is Hatch End station, about 0.6 miles north. A little further out are Heath Robinson Museum (0.8 miles south-west) and Hilfield Castle (4 miles north-east). Not far away are Harrow Weald Common and Northala Fields.
Should I look at the roof myself first?
If you have a loft with safe access, take a look inside. Take a torch and only step on boards or joists, checking for stains, damp wood or chinks of daylight.
After strong wind, take a look from the pavement or garden: 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.
Common roof problems in Hatch End
New membranes can have defects from installation. Testing before the roof is covered or handed over helps find them.
Most people get in touch when they’ve noticed something like this:
- Breaches hidden under paving or planting
- Leaks through a flat roof with no obvious cause
- Failed seams and laps
- Stains far from any visible defect
Anyone responsible for a site like Pinner Park Primary School will know that schools and public buildings frequently have big flat roofs, and their outlets and upstands need regular checks.
What to check before booking
- What follow-up you get after the report
- Is VAT included in the price?
- What insurance they carry
- How long they’ve been surveying roofs
Your questions about electronic leak detection in Hatch End
Do you cover Hatch End?
Yes. Our area covers London and the South East, and Hatch End is part of that. You can call 07833 053749 or send us an email with the address and a few details, and we’ll talk through which survey suits.
Will parking be an issue for a roof survey in Hatch End?
Sometimes, yes. Where there are permit zones, a visitor permit or nearby pay-and-display bay works well, and a driveway is even better.
What do I do with the report?
You’ll receive the report by email, and you decide the next step: use it with a seller, an insurer, a roofer or a managing agent.
Does ELD work under paving or planting?
In some cases. It depends on the build-up and the layers above the membrane and parts may need to be lifted. We’ll discuss it before we quote.
Does the weather affect the survey?
Light rain does not typically stop a survey. Heavy rain or strong wind can ground a drone and make the roof unsafe, so we will agree a new date if the weather is not suitable.
What will the report tell me?
It works through the roof part by part, in writing and with photos. The most urgent items are made clear.
Is the repair part of the test?
No, the test finds the breaches and your roofer repairs them. Your roofer uses the report to target the repair.
Tips from our surveys
Over many surveys, some simple habits stand out:
- Keep a note of leaks after rain
- Check trades protect the waterproofing
- Tell us about the membrane and build-up if you know it
- Avoid repeated repairs without finding the cause
Once repairs are made, the roof can be tested again if you want to check them, where the roof still suits the method.
Keep outlets and gutters on flat roofs clear. Standing water puts more pressure on any weak point.
What happens if roof problems are left?
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 a slipped slate can soon mean water inside. Left unchecked, water soaks into timber and plaster and the damage spreads.
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.
Why book us in Hatch End
- 5,000+ surveys completed
- Two decades and more of roof surveys
- A report with photographs
- Drone and thermal imaging surveys available
Read what a roof survey costs and two real surveys.