Greater London · London and the South East
Lissenden Gardens Electronic Leak Detection
Not sure what state the flat roof membrane is in? You can book electronic leak detection in Lissenden Gardens and across Greater London, with plain-English findings.
- Stains far from any visible defect
- Holes around roof penetrations
- Leaks through a flat roof with no obvious cause
Electronic leak detection for homes and businesses in Lissenden Gardens
ELD finds breaches in the membrane but not every way water gets in. Leaks from walls, copings, rooflights or pipes need other checks. We will tell you if we think the leak is coming from somewhere else. It won’t show water getting in through brickwork or around frames. Our report keeps that distinction clear. We’ll point you to the likely next step. Typical surveys look at breaches hidden under paving or planting and water coming in under a flat roof, across single-ply roofs, green roofs and roof terraces and balconies.
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 Lissenden Gardens, access is agreed with whoever manages the roof ahead of the visit. Rooflights, plant supports and pipe entries are common places for a membrane to fail.
Nothing in the report is left vague: if work is needed, the report says so clearly, and where it can wait, that is said too.
- Where
- Lissenden Gardens (NW5, NW3, N19)
- Wider area
- Greater London
- Cost
- Quoted for your roof
- Your report
- A written report with photos, by email
- Survey days
- Monday to Sunday, daytime
- Insurance
- Professional indemnity and public liability
- Phone
- 07833 053749
- Last updated
- 27 October 2026
Honest limits
This is not a RICS building survey, a structural engineer’s report or an asbestos survey. It also has these limits:
- Areas we can’t reach or that cannot be tested
- Leaks from plumbing or windows
- Moisture spread under the membrane
If in doubt, phone 07833 053749 or send us an email and we’ll point you to the right survey before booking. What a survey covers and doesn’t.
Roof types and parts we check
- Liquid-applied waterproofing
- Flat roof membranes
- Roof terraces and balconies
- Single-ply roofs
- Commercial flat roofs
- Green roofs
What happens on the day
There isn’t much for you to do on the day. Point out anything you’ve noticed, such as stains, drips or loose pieces, and we’ll get on with the inspection. The survey itself takes longer on a large roof than a small one, with the construction of the roof playing a part too. Surveys in Lissenden Gardens can be booked for any day of the week. 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 frequently give the best view of a rear addition.
- We agree the area to be tested.
- The surface is prepared for the chosen method.
- We work across the roof with the test equipment.
- Each breach found is located and recorded.
- The report is sent for your roofer to act on.
Preparing for the visit
- Clear the way to the loft hatch
- Note where any stains or damp appear
- If you are buying, check with the agent that we can get in
Booking a survey
Getting a price is simple: just ring 07833 053749 or drop us an email and give us a few details about the property and we will explain which survey suits. We confirm the price before anything is booked.
Advice
Roof by roof
Bituminous membranes
ELD is often possible on bituminous membranes though the layers below matter.
Liquid-applied waterproofing
Liquid-applied coatings form a seamless layer but holes and thin areas can occur. Suitability for ELD depends on the system.
Your questions about electronic leak detection in Lissenden Gardens
Is parking a problem for a survey in Lissenden Gardens?
Parking in Lissenden Gardens, as in most of London, takes a little planning: a visitor permit or a nearby bay makes the day run more smoothly.
Do you carry out roof surveys in Lissenden Gardens?
Yes, Lissenden Gardens is one of the places we work. The survey and report are the same in Lissenden Gardens as anywhere else.
Can you tell me if my roof has asbestos?
No. Asbestos surveys and sampling are not something we do. The report may flag materials that could contain asbestos on buildings built or refurbished before 2000.
Can you find leaks on a covered flat roof?
Sometimes. 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 report include photographs?
Yes. Photos are taken throughout the survey, and the report uses them to show each finding.
Do you need to get into the loft?
Typically, if there is one and it can be reached safely. The loft space can show things the outside can’t, such as damp timbers, staining or daylight.
How soon will I get the report?
Each package has its own report time. Basic: within 48 hours. Standard: 24 to 48 hours. Premium: the same day. If you have a deadline, like an exchange date, tell us when you book.
Electronic leak detection around Lissenden Gardens
Inner London’s Victorian and Edwardian terraces often have Welsh slate roofs. A butterfly roof with a central valley gutter, tucked behind a parapet wall, is common on these houses. Shared chimney stacks, party-wall upstands and lead work come with this kind of house. Flat roofs on extensions, dormers, garages and business units are found alongside them almost everywhere. Historic houses such as Keats House, about 0.8 miles west, show how far back building in the area around Lissenden Gardens goes. Older homes in the wider area frequently have features worth a closer look, like lead valleys, tall stacks and roofs that have been patched over the years, and a listed home or one in a conservation area may need consent for changes of material.
Lissenden Gardens is in London, so parking needs planning: a visitor permit or a nearby bay makes the day easier. Take a building like Parliament Hill School: large flat roofs, common on schools and other public buildings, need their outlets, upstands and coverings checked regularly. If you run a business near O2 Centre, the flat roofs over shops and commercial units are worth checking before a leak, not after.
Lissenden Gardens is about 1 mile east of Hampstead, in Greater London. Lissenden Gardens is part of the area we cover and the surrounding area as part of our work across London and South East England. Our Greater London coverage includes Lissenden Gardens.
We work across NW5, NW3 and N19 for electronic leak detection. That includes homes and businesses on Rona Road, Dale Road and Fleet Road and the roads around them. Close by, we survey roofs in Gospel Oak (1 mile south), Dartmouth Park (1 mile north-east), Tufnell Park (1 mile east), Kentish Town (1 mile south) and Chalk Farm (1 mile south). Within a short drive, we also cover London (5 miles south-east), City of Westminster (3 miles south), Marylebone (3 miles south), Kensington (5 miles south-west), St Pancras (3 miles south-east) and Shoreditch (4 miles south-east).
What’s near Lissenden Gardens
Around Lissenden Gardens, our work takes us to homes and buildings near Parliament Hill, The Royal School and Gospel Oak Primary School and the streets around them. You will also find The Bull and Last pub (within half a mile north-east) and Cecil Sharp House (1.3 miles south). There’s a railway station in Lissenden Gardens itself: Gospel Oak station. Other landmarks nearby include Royal Northern Hospital (1.2 miles east) and Montfichet's Tower (3.7 miles south-east). The countryside around Lissenden Gardens includes Parliament Hill and The Long Water.
Landlords, agents and block managers in Lissenden Gardens
Businesses and commercial landlords can book us too. Bigger roofs take more time, and they’re priced for the size.
Roof problems in a rented home affect tenants as well as the building. A survey shows what needs attention, so you can plan the work with less disruption.
Tips from our surveys
A little preparation and a few simple habits help. Some pointers:
- Do not leave water getting in
- Don’t let outlets block
- Check new waterproofing before handover
- Do not keep patching the same spot
Keep the report with the roof’s records. It shows the condition of the membrane on that date.
Clear flat roof outlets regularly. Standing water puts more pressure on any weak point.
Prices for electronic leak detection in Lissenden Gardens
All our prices include VAT. The things that change the price are:
- Roof area
- House, block, shop or office
- The use of thermal imaging or a drone
- Extensions, dormers and garages with roofs of their own
Larger roofs, taller buildings and commercial roofs take longer, so the price reflects that. You’ll know the figure before booking.
Helping us price your survey
A little information up front helps. It helps to include:
- Any stains, drips or damp patches you’ve seen indoors
- Photos of the roof, taken safely from the ground or a window
- How the loft is reached, if there is one
- Dates you are working to, such as exchange
Photos help, if you have them. Take them safely from the ground or a window, and please don’t climb up for a closer look. To get started, phone 07833 053749 or email us.