Greater London · London and the South East
Electronic leak detection in Soho, Greater London
Know where you stand with the flat roof membrane before you decide what to do next. We carry out electronic leak detection in Soho.
- Holes left by work on the roof
- Leaks under green or ballasted roofs
- Leaks that return after repairs
Electronic leak detection for homes and businesses in Soho
Electronic testing locates holes in the waterproofing but not every way water gets in. Leaks from walls, copings, rooflights or pipes need other checks. If the evidence points elsewhere, we’ll say so. It will not show water getting in through brickwork or around frames. Our report keeps that distinction clear. You will also know what to check next. Common reasons to book are damp inside with no sign on the roof and holes left by work on the roof, across green roofs, single-ply roofs and commercial flat roofs.
Offices, shops and blocks of flats across London often have large flat roofs with plant, rooflights and walkways. Each pipe, upstand and fixing through the covering is a possible weak point. In Soho, roof access is agreed with the building manager or owner beforehand. Plant bases, rooflights and cable entries are all places where water can get in.
We write the report in plain English, so it makes sense without any roofing background. Photos show what each point refers to, with the urgent items made clear.
- Location
- Soho (W1F, W1T, W1D)
- Wider area
- Greater London
- Prices
- Quoted for your roof
- Your report
- A written report with photos, by email
- Survey days
- Weekdays, Saturdays and Sundays
- Insured
- Professional indemnity and public liability
- Telephone
- 07833 053749
- Page updated
- 27 October 2026
What we do, step by step
We work from the outside in: outside views come first, then the loft space if there’s safe access. All told, expect as long as needed for the size of the roof and how it’s built, which we’ll explain when we quote. From the street, a London terrace usually shows only its front slope or parapet, so in Soho we work round the house, using the street, the windows, the loft and any safe vantage point behind it. Shared stairs or a basement flat? Tell us who holds the keys.
- You tell us 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.
- You get a report with photos of each breach.
Getting ready for the survey
- Show us where any leaks or stains appear
- Dig out any old roof reports or invoices
- Keep pets inside or away from the areas we are looking at
Getting a price
Getting a price is simple: just phone 07833 053749 or drop us an email, let us know about the property and we’ll suggest the right survey. The price is agreed up front.
Advice
Rented homes, blocks and businesses
A roof problem in a let property affects your tenants as well as the building. A survey shows what needs attention, so you can plan the work with less disruption.
Landlords, agents and building managers in Soho and across Greater London can book any of our surveys. For a price for a let property or a block, call 07833 053749 or email us.
Why it is worth a survey now in Soho
Not every leak is in the membrane. ELD helps rule the membrane in or out so attention can go to the right place. Work on a London roof is rarely simple to arrange, with parking, neighbours and access all to think about. Knowing what’s needed early gives you time to plan it calmly.
For a price for your roof in Soho, phone 07833 053749 or drop us an email with the address and a few details. We’ll confirm the figure before booking.
Why choose Independent Roof Survey in Soho
- Every finding written up with photos
- Over 20 years’ experience
- A sub-250g drone, flown with a CAA Flyer ID and Operator ID
- Independent findings on the roof’s condition
Read how roof surveys are priced or what we found on two real jobs.
Also in Soho
What this survey can’t tell you
A survey is a careful look at the flat roof membrane, but it can’t do everything. The main limits are:
- How wet the insulation is
- Areas we can’t reach or that can’t be tested
- Leaks from plumbing or windows
Not sure which survey suits your roof? You can call 07833 053749 or drop us an email and we will tell you before booking. What our survey covers.
Roofs we survey in Soho
- Roof terraces and balconies
- Flat roof membranes
- Commercial flat roofs
- Liquid-applied waterproofing
- Green roofs
- Single-ply roofs
Your questions about electronic leak detection in Soho
Do you cover commercial flat roofs around Soho?
Yes, commercial buildings, hotels included, are part of the work. Access to the roof is sorted out with whoever manages the building before the day.
Will parking be an issue for a roof survey in Soho?
Parking in Soho, as in most of London, takes a little planning: a visitor permit or a bay close to the door helps a lot.
Do you work in Soho?
Yes. We cover Soho and the rest of Greater London, as part of our work across London and the South East. To book, phone 07833 053749 or email us.
What does electronic leak detection do?
It uses an electrical current to find breaches in a flat roof membrane. The current only gets through where the membrane is breached so we can pinpoint it.
How long will testing take?
Testing usually takes a time that depends on the membrane area and the build-up, which we’ll explain when we quote.
Do you look in the roof space?
If it’s needed and safe to reach, yes. Inside, we look for damp, staining, gaps and sagging.
Do you use low-voltage or high-voltage testing?
The method is chosen to suit the roof. Low-voltage methods are normally carried out on a wet roof, while high-voltage testing needs a dry, exposed membrane.
What electronic leak detection looks like in Soho
Close to the centre of London, a great many houses are Victorian or Edwardian terraces, many of them roofed in Welsh slate. Behind many of their parapets sit butterfly roofs and valley gutters that can’t be seen from the pavement. Lead flashings, party-wall upstands and shared chimney stacks are typical of these houses, if yours is one of them. Alongside them, flat-roofed extensions, dormers, garages and commercial units are common almost everywhere. Soho has a number of hotels within about a mile and a half, and like offices and blocks, hotels often sit under flat roofs. If you look after one, a leak through a flat roof can put a room out of use.
Hotels and guest houses near Soho can’t easily close rooms for a leak, so it is worth knowing the roof’s condition. The streets around a church like St Anne's Church are often among the oldest in a place, and if your home is one of the older ones nearby, later flat-roofed additions are common on older houses, and their edges and upstands often show the first signs of wear. Take a building like Soho Parish CofE Primary School: large flat roofs, common on schools and other public buildings, need their outlets, upstands and coverings checked regularly.
Soho is about 1 mile east of City of Westminster, in Greater London. We carry out electronic leak detection for householders, landlords and businesses in Soho and the surrounding area. Our Greater London coverage includes Soho.
Every address in W1F, W1T and W1D is covered for electronic leak detection, from the main roads to the quietest streets. Local streets include Duck Lane, Drury Lane and Bridle Lane, and we cover them all. Soho is on the A4 and A301, so it’s easy for us to get to. If you’re just outside Soho, we cover West End (1 mile east), Chinatown (1 mile south), Seven Dials (1 mile east), St Giles (1 mile north-east) and St James's (1 mile south). Within a short drive, we also cover Kensington (3 miles west), Walthamstow (7 miles north-east), Whitechapel (3 miles east), Hampstead (3 miles north-west), Ruislip (13 miles west) and Stockwell (3 miles south).
What’s near Soho
Typical jobs here are in homes near Bar Soho, St Anne's Churchyard and Harris Westminster Sixth Form and the streets around them. Nearby too are LITE Regal International School (0.6 miles west) and London Library (0.5 miles south-west). There is a railway station in Soho itself: Tottenham Court Road station. A little further out are Kingly Court (under half a mile west) and Montfichet's Tower (1.3 miles east). The countryside around Soho includes St. James's Park Lake and Ludgate Hill.
Roof by roof
Inverted and paved roofs
If the build-up rules out ELD, we will say so.
Green and ballasted roofs
Parts of the covering may have to come up. We explain what’s needed when we quote.
How we price electronic leak detection
Prices vary from roof to roof, and it comes down to:
- Extra roofs, like extensions, dormers or garages
- If the survey needs thermal imaging or a drone
- The size of the roof
- Building height and the viewpoints available
Every price we give includes VAT. We quote electronic leak detection for each roof, as the method and time depend on the roof. You will know the exact price before booking.
What we need to know
These details help when you contact us:
- Photos of the roof, taken safely from the ground or a window
- What made you get in touch
- Your postcode, so we can check access and travel
- When you need the report by
To book a survey, phone 07833 053749 or send us an email and tell us the address and what’s prompted the survey. You will know the price before anything is booked.