Greater London · London and the South East
Electronic leak detection in South Hampstead, Greater London
Electronic leak detection in South Hampstead, backed by more than 20 years’ experience. You get a clear report with photos.
- Leaks that return after repairs
- Damage from equipment installers
- Damp inside with no sign on the roof
Landlords, agents and block managers in South Hampstead
If you own several properties, surveys can be booked for more than one address. To discuss a number of properties, phone 07833 053749 or send us an email with the addresses.
Letting agents can arrange access with tenants, at a time agreed beforehand. Surveys run on any day of the week, which can make access easier.
About our electronic leak detection in South Hampstead
ELD is a way of pinpointing breaches in a flat roof’s waterproofing membrane. It uses a small electrical current which can only get through the membrane at a breach. That lets us locate holes that are too small to see so your roofer knows exactly where to repair. You get a written report with photos of each breach found. If you are worried about breaches hidden under paving or planting and water coming in under a flat roof, a survey will tell you what’s going on, whatever the roof.
Offices, shops and blocks of flats across London frequently have large flat roofs with plant, rooflights and walkways. Every penetration and upstand is a place where a membrane can fail. In South Hampstead, roof access is agreed with the building manager or owner beforehand. Rooflights, plant supports and pipe entries are common places for a membrane to fail.
The report is yours to share with whoever needs it: your solicitor, the seller, your insurer, a roofer or the building’s managing agent, whichever applies.
- Place
- South Hampstead (NW3, NW8, NW6)
- Region
- Greater London
- Cost
- Quoted for your roof
- Report
- A written report with photos, by email
- Survey days
- Weekdays, Saturdays and Sundays
- Insurance
- Professional indemnity and public liability
- Telephone
- 07833 053749
- Page updated
- 27 October 2026
How the survey changes by roof type
EPDM rubber roofs
EPDM is a long-lasting flat roof membrane, but punctures and seam failures still happen.
Green and ballasted roofs
Parts of the covering may have to come up. We discuss this before quoting.
Common questions in South Hampstead
How do I find out if my home in South Hampstead is listed?
You can check whether a building is listed on Historic England’s list, and your council can tell you if it is in a conservation area. Listed building consent is needed for changes that affect a listed building’s special interest, and conservation areas can limit changes of roofing material.
Will parking be an issue for a roof survey in South Hampstead?
Parking in South Hampstead, as in most of London, takes a little planning: a visitor permit or a bay close to the door helps a lot, so mention what’s available when you book.
Do you carry professional indemnity insurance?
Every survey is covered by professional indemnity and public liability insurance, and details are available on request.
What does electronic leak detection do?
ELD passes a small electrical current across the roof to locate holes in the membrane. A breach lets the current through so we can pinpoint it.
What will the report tell me?
It sets out what we found, why it matters and what we recommend, backed by photographs. It also says if any part of the roof couldn’t be seen safely, so you know exactly what was covered.
How long will testing take?
The roof’s size and build-up decide how long it takes. We’ll give you an idea when we quote.
How do I book a survey in South Hampstead?
It’s easiest to ring 07833 053749 or email us. Give us the address and some details about the roof, and we’ll take it from there. Surveys run on weekdays and at weekends.
Places near South Hampstead
Other services in South Hampstead
What affects the cost of electronic leak detection
Not every roof costs the same to survey, for these reasons:
- Whether thermal imaging or a drone is needed
- Extensions, dormers and garages with roofs of their own
- Commercial roofs and larger buildings
- How tall the building is and how easy the roof is to see
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 it can be reached and seen safely. Electronic leak detection is quoted for your roof, because the method depends on the roof.
Getting in touch
If you can, have these to hand when you get in touch:
- What kind of property and roof it is
- Photos of the roof, taken safely from ground level or a window
- How the loft is reached, if there is one
- Your timetable, such as an exchange date
Getting a price is simple: just ring 07833 053749 or use the contact form, let us know about the property and we’ll suggest the right survey. We confirm the price before anything is booked.
When to book a survey in South Hampstead
Joints and laps in a membrane can fail over time. A gap that’s hard to see can let water in long before anyone notices.
A survey can pick up problems such as:
- Leaks that return after repairs
- New roofs to check before paving or planting
- Gaps at membrane joints
- Breaches hidden under paving or planting
For landlords with property near South Hampstead station, the flat roof over a let home is worth a look before it becomes a tenant complaint.
What to check before booking
- Whether VAT is in the quoted price
- Their report turnaround times
- How they’ll see the roof: from ground level, the loft, the roof or by drone
- What’s outside the scope of the survey
What happens on the day
Time on site depends on the size and shape of the roof; as a rough guide, the survey takes a time that depends on the membrane area and the build-up, which we set out in the quote. You’re welcome to ask questions while we are there. In converted houses and mansion blocks, the loft hatch is frequently on a shared landing. If that applies to your building, it is useful to agree access with the neighbours or the managing agent first. Everything else is planned around the building, not the postcode.
- First, you let us know about the roof build-up and where water is showing.
- We check that the membrane and build-up suit electronic leak detection.
- We pick the low-voltage or high-voltage method that suits the roof.
- The roof is tested and any breaches are located.
- The breaches are recorded with photos in a report for your roofer.
Before the survey
- Show us where any leaks or stains appear
- Have any questions written down, so nothing gets missed
- Tell us about parking before the day
How to book
Buyers should book once an offer has been accepted, so you have the findings in time to act on them before you exchange. For any other survey, just phone 07833 053749 or send us an email when you are ready.
Advice
Electronic leak detection around South Hampstead
About 0.9 miles south-east lies Winfield House, a reminder of how long the area around South Hampstead has been built on. If yours is one of the older homes, expect a mix of original materials and later repairs on the roof, and a listed home or one in a conservation area may need consent for changes of material. Within a mile and a half or so of South Hampstead there are several hotels. If you look after one, a leak through a flat roof can put a room out of use.
If you look after a shop, office or commercial unit, for instance near O2 Centre, the flat roofs over shops and commercial units are worth checking before a leak, not after. The streets around a church such as Church of All Souls are often among the oldest in a place, and if your house is among the older ones nearby, the joins between later flat roofs and the old walls are where problems normally start.
South Hampstead is about 1 mile south of Hampstead, in Greater London. South Hampstead is one of many places we visit across Greater London, for homes and businesses alike. We cover towns and villages across Greater London, large and small.
Every address in NW3, NW8 and NW6 is within our area for electronic leak detection. That includes homes and businesses on Avenue Road, Acacia Road and Harben Road and the roads around them. Close by, we survey roofs in Swiss Cottage (1 mile north), St John's Wood (1 mile south), Haverstock (1 mile east), Belsize Park (1 mile east) and Primrose Hill (1 mile east). Within a short drive, we also cover London (4 miles south-east), Kensington (3 miles south-west), St Pancras (3 miles south-east), Shoreditch (4 miles east), Walthamstow (7 miles north-east) and Hoxton (4 miles east).
Local landmarks in South Hampstead
In South Hampstead, that means homes and buildings near Cafe Med pub, St. Mary's Town and Country School and Holy Trinity CofE Primary School and the streets around them. You will also find Cecil Sharp House (1.1 miles east) and Primrose Hill (0.6 miles east). There’s a railway station in South Hampstead itself: South Hampstead station. Other landmarks nearby include Isokon Gallery (0.8 miles north-east) and O2 Centre (0.5 miles north-west). Open spaces near South Hampstead include Adelaide Nature Reserve and The Long Water.
Before and after the survey
There is plenty you can do without going near the roof. What helps most:
- Keep a note of leaks after rain
- Check trades protect the waterproofing
- Have roof specifications to hand
- Don’t let outlets block
Once repairs are made, the roof can be tested again if you want to check them if the build-up allows.
Act on leaks quickly. The longer water gets in, the more insulation and decking can be affected.