Greater London · London and the South East
Electronic Leak Detection in Belsize Park
Independent electronic leak detection in Belsize Park. More than 5,000 surveys completed across London and South East England.
- Water coming in under a flat roof
- Leaks that return after repairs
- Stains far from any visible defect
About our electronic leak detection in Belsize Park
Electronic testing locates holes in the waterproofing 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. The report makes clear what was and wasn’t tested. We will point you to the likely next step. Common reasons to book are leaks at pipes, outlets or fixings and water coming in under a flat roof, on single-ply roofs, commercial flat roofs and roof terraces and balconies.
Water getting through a flat roof in London can travel under the covering and appear some way from the hole. Outlets, upstands against parapet walls and joins with the main roof are frequent culprits. In a block or conversion in Belsize Park, the flat roof is often a shared part of the building.
What you get is a clear record of the flat roof membrane on the day we saw it. It’s useful right away, and a good reference for later, for instance when you want to check whether anything has changed.
- Place
- Belsize Park (NW3, NW5, NW1)
- Region
- Greater London
- Prices
- Quoted for your roof
- Report
- A written report with photos, by email
- When we survey
- Weekdays, Saturdays and Sundays
- Cover
- Professional indemnity and public liability
- Phone
- 07833 053749
- Last updated
- 27 October 2026
Landlords, agents and block managers in Belsize Park
Where a roof is shared: access has to be agreed with whoever owns or manages the building. Let us know about it when you book and we will plan the visit with that in mind.
We also survey roofs for businesses and commercial landlords, including offices, shops and units. Larger roofs take longer, so they’re priced to suit.
Prices for electronic leak detection in Belsize Park
We confirm the price for the job before booking. This is what makes a difference:
- How tall the building is and how easy the roof is to see
- How many separate roofs there are, such as extensions, dormers and garages
- The roof’s overall size
- Whether it’s a home or a commercial building
Every price we give includes VAT. We quote electronic leak detection for each roof, as the method and time depend on the roof. You’ll know the exact price before you book.
Getting in touch
Before you get in touch, it’s useful to have:
- Any stains, drips or damp patches you’ve seen indoors
- Your postcode, so we can check access and travel
- The style of property, from a terrace to a block
- Your timetable, such as an exchange date
Surveys can be booked for weekdays, Saturdays or Sundays. To find a date that works for you, call 07833 053749 or drop us an email.
Places near Belsize Park
Also in Belsize Park
How the survey works
The visit typically starts outside and finishes in the loft: first the slopes, edges and gutters from every safe viewpoint, then the roof space where it can be reached. All told, expect a length of time set by the roof’s area and construction, and we’ll give you a guide when quoting. Many London properties are flats or terraces with no side access, so the back of the roof is often seen from upstairs windows, from inside or, where a flight is allowed, from the air. Mention any building rules, key holders or managing agents as you book.
- You let us know about the roof and where water is showing.
- The roof is assessed for suitability first.
- We choose a low-voltage or high-voltage method to match the roof.
- The membrane is tested and breaches are found.
- A report with photographs shows where each breach is.
Before the survey
- Point out any leaks or damp patches
- Clear the way to the loft hatch
- Make sure we can get to the back of the property
How to book
We confirm the price for your survey before booking, so you know where you stand. Electronic leak detection is quoted for your roof, because the method depends on the roof. To book, call 07833 053749 or drop us an email.
Advice
FAQs for Belsize Park
Is parking a problem for a survey in Belsize Park?
It rarely stops a survey, but it’s worth planning. Tell us what parking is available nearby, and the visit is planned around it.
How do I find out if my home in Belsize Park is listed?
Historic England’s list shows listed buildings, and the local council can tell you about conservation areas. Listed building consent is needed for changes that affect a listed building’s special interest, and conservation areas can limit changes of roofing material.
How is ELD priced?
Each roof is quoted on its size and build-up. Let us know about the roof and where it leaks, and call 07833 053749 or drop us an email for a quote.
What’s the best way to book?
To book, ring 07833 053749 or send us an email with the address, the type of property and what’s prompted the survey. We’ll confirm the price and find a day that suits.
What’s in the report?
It explains what we saw, what it means and what we’d suggest, with photographs throughout. It also says if any part of the roof couldn’t be seen safely, so you know exactly what was covered.
Is my roof suitable for ELD?
ELD doesn’t suit every roof. Some membranes conduct electricity and some roofs lack the layer the test needs. If your roof won’t work, we’ll say so at the start.
Does ELD include fixing the breach?
No, our part is finding the breaches. Your roofer uses the report to target the repair.
Different roofs, different checks
EPDM rubber roofs
EPDM is a long-lasting flat roof membrane, but can still be punctured.
Single-ply membranes
Single-ply membranes are common on commercial and newer roofs. Laps and fixings are where holes often appear.
When you need someone else
We only report everything that’s safely in view on the day, so there are some things a survey cannot cover:
- The extent of water in the insulation
- Areas we cannot reach or that cannot be tested
- Repairing the breaches (that’s for your roofer)
If you are not sure which survey you need, phone 07833 053749 or drop us an email and we will give you a straight answer before booking. What a survey covers and does not.
Roof types and parts we check
- Liquid-applied waterproofing
- Roof terraces and balconies
- Single-ply roofs
- Flat roof membranes
- Commercial flat roofs
- Green roofs
What you can safely check yourself
During heavy rain, look at the gutters from ground level or a window. Overflowing water can point to a blockage or a sagging run.
If you have a loft with safe access, take a look inside. Use a torch and stay on the joists or boards, checking for stains, damp wood or chinks of daylight.
What electronic leak detection looks like in Belsize Park
The wider area around Belsize Park has a long history of building, with Keats House about 0.8 miles north. Older roofs in the wider area can hide decades of patch repairs, so the detail matters, and any change of roofing material on a listed home needs checking with the council first. Inner London’s Victorian and Edwardian terraces frequently have Welsh slate roofs. Many have butterfly roofs draining to a central valley gutter, with parapet walls and gutters hidden behind them. Lead flashings, party-wall upstands and shared chimney stacks are typical of these houses, if yours is one of them. Mixed in with those pitched roofs are a good many flat ones, over rear extensions, dormers, garages and shops.
For an older house near a landmark such as Church of St Mary the Virgin, flat-roofed rear additions and dormers added over the years are worth checking. If you run a business near O2 Centre, flat roofs over shops and units are easy to forget until water comes through a ceiling. If you own a rental within reach of South Hampstead station, the flat roof over a let home is worth a look before it becomes a tenant complaint.
Belsize Park is about 1 mile south-east of Hampstead, in Greater London. We visit Belsize Park as part of our work across Greater London. We cover towns and villages across Greater London, from the larger towns to small villages.
We work across NW3, NW5 and NW1 for electronic leak detection. We offer electronic leak detection to properties on Eton Road, Lawn Road and Ornan Road and the roads around them. We also cover Haverstock (1 mile north), Primrose Hill (1 mile south), South Hampstead (1 mile west), Swiss Cottage (1 mile west) and Chalk Farm (1 mile east). We also work in nearby towns such as London (4 miles south-east), Kensington (4 miles south-west), Shoreditch (4 miles east), Walthamstow (7 miles north-east), Hoxton (3 miles east) and Whitechapel (4 miles south-east).
Near you in Belsize Park
Locally, jobs take us to homes and businesses close to The Washington pub, Primrose Hill and St. Mary's Town and Country School. Also close by are Cecil Sharp House (0.8 miles south-east) and St Paul's Church of England Primary School (less than half a mile south). Belsize Park’s nearest station is South Hampstead station, about 0.7 miles west of the centre. Well-known places in the area include Wellington Hospital (0.9 miles south-west) and O2 Centre (0.8 miles west). Green spaces nearby include Adelaide Nature Reserve and The Long Water.