Greater London · London and the South East
Electronic leak detection in North Wembley, Greater London
Electronic leak detection to pinpoint holes in flat roof membranes around North Wembley, with findings in writing and pictures to back them up. Weekday and weekend visits available.
- Punctures from foot traffic or tools
- Waterproofing to test before it’s covered
- Leaks at pipes, outlets or fixings
DIY checks: what’s safe
Inside, the loft is a good place to look, with care. Use a torch and stay on the joists or boards, checking for stains, damp wood or chinks of daylight.
Keep a simple record: when leaks happen, ground-level photos and any past roof work. Share it with us as you book, as it helps us focus the survey.
How electronic leak detection works in North Wembley
Our ELD testing covers flat roofs in North Wembley and the rest of London and South East England. A visit usually takes a time that depends on the size of the roof and how it’s built, which we set out in the quote. Electronic leak detection is quoted for your roof, because the method depends on the roof. You get a photo-illustrated written report. We survey single-ply roofs, liquid-applied waterproofing and flat roof membranes, and the problems we’re asked to look at most are failed seams and laps and waterproofing to test before it’s covered.
On a London roof terrace or a flat roof over a back addition, water often runs under the covering before it shows. Upstands against parapets, outlets and the edge where flat meets pitched are common entry points. In a block or conversion in North Wembley, the flat roof is often a shared part of the building.
After the visit, you get a written report with photos, sent by email. It sets out the condition of the flat roof membrane, any defects and our written recommendations.
- Location
- North Wembley (HA0, HA9, UB6)
- Wider area
- Greater London
- Price
- Quoted for your roof
- Your report
- A written report with photos, by email
- Appointments
- Weekdays, Saturdays and Sundays
- Insurance
- PI and public liability insurance
- Call
- 07833 053749
- Page updated
- 27 October 2026
What a survey costs
Not every roof costs the same to survey, and it comes down to:
- Height and safe access
- Whether thermal imaging or a drone is needed
- How many separate roofs there are, like extensions, dormers and garages
- The size of the roof
The cost of a survey depends on the roof: how big it is, how high it is, the number of separate roofs 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. It is enough to tell us:
- When you need the report by
- Where any leaks, stains or damp patches show inside
- Why you want a survey: buying, a leak, a storm or new work
- Photos of the roof, taken safely from the ground or a window
To get a price for electronic leak detection in North Wembley, ring 07833 053749 or email us. Some details about the property and the roof help us give you an accurate price.
How it works
Where it is relevant and can be reached safely, the loft space is checked as well as the outside. Inside, we look for staining, damp, gaps and signs of movement. The whole visit typically takes longer on a large roof than a small one, and the build-up of the roof makes a difference too. In North Wembley, 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. Upstairs rooms at the back are useful too, as they often give the best view of a rear addition.
- First, we confirm which roof areas are included.
- We get the roof ready for testing.
- Testing runs across the agreed area.
- Each breach found is located and recorded.
- The report is sent for your roofer to act on.
How to prepare
- If it is not your property yet, arrange access through the agent
- Have any questions written down, so nothing gets missed
- Unlock side gates and any roof access doors
Booking a survey
To arrange a survey, ring 07833 053749 or email us with the address and what you’d like to know about the roof. We’ll confirm the price before you book.
Advice
Places near North Wembley
More services for North Wembley
Before and after the survey
From years of surveys, a few habits stand out as worth the effort:
- Check trades protect the waterproofing
- Don’t let outlets block
- Record dates and spots where water appears
- Avoid repeated repairs without finding the cause
Once repairs are made, the roof can be tested again if you want to check them if the build-up allows.
Check contractors protect the waterproofing when fitting equipment. Check the roof after they’ve finished.
Roof by roof
Single-ply membranes
Many offices and units have single-ply roofs. Seams and penetrations are typical breach points.
EPDM rubber roofs
EPDM is a long-lasting flat roof membrane, but can still be punctured.
Flat roofs in North Wembley
North Wembley has a number of hotels within about a mile and a half. If you look after one, a leak through a flat roof can put a room out of use. Historic houses such as Northolt Manor, about 2.9 miles west, show how far back building in the area around North Wembley goes. 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.
Hotels and guest houses near North Wembley can’t easily close rooms for a leak, so it’s worth knowing the roof’s condition. For an older house near a landmark such as Church of St John, flat-roofed rear additions and dormers added over the years are worth checking. If you look after a shop, office or commercial unit, for example near London Designer Outlet, flat roofs over shops and units are easy to forget until water comes through a ceiling.
North Wembley is about 2 miles south-east of Harrow, in Greater London. We survey roofs in North Wembley and the surrounding area as part of our work across London and the South East. North Wembley is one of the towns and villages in Greater London we cover for electronic leak detection. Our London page covers surveys nearby.
Surveys in HA0, HA9 and UB6 are booked the same way as anywhere else. Streets in the area include Elm Road, East Lane and High Road. North Wembley is on the A4089, so it’s easy for us to get to. Neighbouring places we cover for electronic leak detection include Brondesbury Park (1 mile north), Sudbury Hill (1 mile west), Sudbury (1 mile west), South Kenton (1 mile north) and Perivale (1 mile south-west). We also work in nearby towns like London (10 miles south-east), City of Westminster (7 miles south-east), Marylebone (7 miles east), Kensington (6 miles south-east), St Pancras (8 miles east) and Shoreditch (10 miles east).
Around North Wembley
Typical jobs here are in homes near Wembley High Technology College, Preston Park and J.J. Moon's pub, among other places. There’s a railway station in North Wembley itself: Wembley Central station. Nearby you will also find Clementine Churchill Hospital (1.4 miles north-west) and London Designer Outlet (0.8 miles east). The countryside around North Wembley includes Perivale Wood and Castlebar Hill.
When you need someone else
Before booking, it’s worth knowing what a survey will not do:
- Moisture spread under the membrane
- Fixing the holes we find
- Water entering through details rather than the membrane
If in doubt, phone 07833 053749 or email us and we’ll suggest the right survey. What our survey covers.
Roof types and parts we check
- Roof terraces and balconies
- Commercial flat roofs
- Single-ply roofs
- Liquid-applied waterproofing
- Flat roof membranes
- Green roofs
FAQs for North Wembley
Can parking be tricky for a visit in North Wembley?
It can be, so it’s useful to tell us about permits, visitor bays or off-street space when you book. That way the visit can be planned around it.
Is my home in North Wembley listed or in a conservation area?
Start with Historic England’s list for listing and your council for conservation areas. It’s worth checking before planning roof work, as both can affect what’s allowed.
Do you need to get into the loft?
Where it’s relevant to the survey and there’s safe access, yes. A clear path to the hatch helps, and if the loft can’t be reached safely, the report says so.
What happens next?
The report comes by email, and what you do next is up to you: raise it with a seller, send it to an insurer, brief a roofer or share it with a managing agent.
What’s the price of ELD?
Electronic leak detection is quoted for your roof, because the method depends on the roof. Size, build-up and access all affect the price. For a quote, call 07833 053749 or email us.
How does ELD work?
The waterproofing membrane normally stops an electrical current, but a hole lets it through. That is how we locate breaches you can’t see.
What does the report include?
It sets out what we found, why it matters and what we recommend, with photographs throughout. It also says if any part of the roof couldn’t be seen safely, so you know exactly what was covered.