Greater London · London and the South East
Electronic leak detection in Adelphi, Greater London
Need electronic leak detection in Adelphi? We can help, with findings in writing and pictures to back them up. Book a weekday or weekend visit.
- Punctures from foot traffic or tools
- Leaks through a flat roof with no obvious cause
- Leaks under green or ballasted roofs
About our electronic leak detection in Adelphi
Green roofs, ballasted roofs and roofs under paving are harder to test. The layers on top can limit the methods we can use and parts may need to be lifted. We talk this through before we quote. Drawings or details of the roof’s layers are useful because they show what’s under the surface. We will tell you if the roof can’t be tested. If you’ve noticed damp inside with no sign on the roof and leaks under green or ballasted roofs, we can find out what’s behind it.
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 Adelphi, the flat roof is often a shared part of the building.
The report is yours to share with whoever needs it: a seller or estate agent, an insurer, a roofer, a builder or a managing agent.
- Place
- Adelphi (W1D, W1F, WC2H)
- Region
- Greater London
- Price
- Quoted for your roof
- Your report
- Emailed report with photos and recommendations
- When we survey
- Monday to Sunday, daytime
- Insurance
- Professional indemnity and public liability
- Phone
- 07833 053749
- Page updated
- 27 October 2026
What affects the price in Adelphi
Not every roof costs the same to survey, and it comes down to:
- Extensions, dormers and garages with roofs of their own
- The height of the building and how the roof can safely be seen
- The type of building, from a house to a block or an office
- How complicated the roof is, with its valleys, chimneys and parapets
Larger roofs, taller buildings and commercial roofs take longer, so they’re priced to match. The price is confirmed before booking.
Booking your survey
What helps most when you contact us:
- What kind of property and roof it is
- Pictures from the garden or a window, if you have them
- When you need the report by
- Access details, like a loft hatch or a shared roof
If you’re buying, it is useful to book soon after your offer is accepted, so you have the findings in time to act on them before you exchange. Otherwise, simply ring 07833 053749 or drop us an email whenever suits you.
Signs you need electronic leak detection in Adelphi
A breach can be left during installation. ELD on a new roof can show holes before they cause leaks.
These are some of the problems a survey can pick up:
- Leaks that return after repairs
- New membranes needing a check before handover
- Water coming in under a flat roof
- Holes around roof penetrations
If your house is among the older ones in the streets near Savoy Chapel, later flat-roofed additions are common on older houses, and their edges and upstands often show the first signs of wear.
Choosing a roof surveyor
- How they’ll see the roof: from ground level, the loft, the roof or by drone
- How much experience they have with roofs like yours
- Which limits apply to the survey
- What the report includes, and whether it has photos
Your questions about electronic leak detection in Adelphi
Do you cover commercial flat roofs around Adelphi?
Yes. As well as homes, we look at flat roofs on offices, hotels, blocks of flats and commercial units. Larger commercial roofs are quoted for the building, and roof access is agreed with you ahead of the visit.
Is my home in Adelphi listed or in a conservation area?
You can check whether a building is listed on Historic England’s list, and your council can tell you if it’s 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.
How much does electronic leak detection cost?
We quote for each roof individually. Send us details of the roof, and call 07833 053749 or use the contact form for a quote.
How quickly is the report sent?
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, let us know when you book.
How does ELD work?
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.
Are you insured?
Our surveys are covered by professional indemnity and public liability insurance. If you need details for a managing agent or a building owner, just ask.
Will you check the loft?
If the survey needs it and the roof space can be reached safely, yes. Please clear anything stored under the hatch.
What happens on the day
Expect us to ask a few questions before we start, about the roof’s history, any leaks and past repairs. Then the inspection itself takes longer on a large roof than a small one, and the build-up of the roof makes a difference too. London terraces rarely offer a view of the whole roof from one spot, so in Adelphi we work round the house, using the street, the windows, the loft and any safe vantage point behind it. If other people live in the building, tell us who can let us into the shared parts.
- First, you tell us about the roof build-up and where water is showing.
- We check that the membrane and build-up suit electronic leak detection.
- The testing method is chosen to suit the membrane and build-up.
- Testing runs across the roof to locate breaches in the membrane.
- You get a report showing where each breach is, for your roofer to repair.
Getting ready for the survey
- Let us know about any leaks, stains or damp patches you know of
- If it is not your property yet, arrange access through the agent
- Keep pets out of the way during the survey
How to book
Every survey is priced before it is booked, so you know where you stand. Electronic leak detection is quoted for your roof, because the method depends on the roof. For a price for your roof, phone 07833 053749 or use the contact form.
Read more
Why get it checked now?
Not every leak is in the membrane. Testing shows whether the membrane is breached so attention can go to the right place. London’s older roofs frequently have bitumen felt underlay or none at all, so once the slates or flashings let water past, little stops it reaching ceilings. Left unchecked, water soaks into timber and plaster and the damage spreads.
The cost of a survey depends on the roof: how big it is, how high it is, the number of separate roofs and how safely it can be seen. Electronic leak detection is quoted for your roof, because the method depends on the roof.
Why book us in Adelphi
- Over 5,000 surveys carried out
- Drone and thermal imaging surveys available
- Covered by professional indemnity and public liability insurance
- More than 20 years surveying roofs
See how roof surveys are priced or what we found on two real jobs.
Electronic leak detection around Adelphi
Many homes in inner London are Victorian and Edwardian terraces, often with Welsh slate roofs. Behind many of their parapets sit butterfly roofs and valley gutters that cannot be seen from the pavement. If your home in Adelphi is one of them, lead flashings, party-wall upstands and shared chimney stacks are part of the picture too. Alongside them, flat-roofed extensions, dormers, garages and commercial units are common almost everywhere. With Benjamin Franklin House about 0.2 miles south-west, Adelphi sits in an area with a long building history. Older homes in the wider area often have features worth a closer look, like lead valleys, tall stacks and roofs that have been patched over the years, and the council can say whether a home is in a conservation area.
If you let a flat or house near London Charing Cross station, the flat roof over a let home is worth a look before it becomes a tenant complaint. Shop and office owners around Gabriel's Wharf may find that outlets and upstands on commercial flat roofs are the places to check before trouble starts.
Adelphi is about 1 mile south-east of Marylebone, in Greater London. Anywhere in Adelphi, we can come and survey your property. Adelphi is one of the towns and villages in Greater London we cover for electronic leak detection.
Here we cover the W1D, W1F and WC2H postcode area for electronic leak detection. You’ll find streets such as York Road, Drury Lane and Maiden Lane. Adelphi sits on or near the A301 and A400, so getting to you is simple. Other places close to Adelphi include Covent Garden (1 mile north), Charing Cross (1 mile south-west), Aldwych (1 mile north-east), Seven Dials (1 mile north-west) and West End (1 mile north-west). We also work in nearby towns such as Kensington (3 miles west), Walthamstow (7 miles north-east), Hampstead (4 miles north-west), Ruislip (13 miles west), Stockwell (3 miles south) and Orpington (13 miles south-east).
What’s near Adelphi
Typical jobs here are in homes near The BFI Reuben Library, St Andrew's and St John's Church of England Primary School and London Nautical School. Other local landmarks include Victoria Embankment Gardens (less than half a mile south) and The Theodore Bullfrog pub (under half a mile south-west). Adelphi has its own railway station: London Charing Cross station. Well-known places in the area include London Museum and Institute of Natural History (under half a mile north-east) and Montfichet's Tower (1 mile east). Green spaces nearby include St. James's Park Lake and Barnsbury Wood.
What electronic leak detection does not cover
Every survey has limits, and it’s better to know them up front. Keep these in mind:
- Leaks from walls, copings or rooflights
- The extent of water in the insulation
- Repairing the breaches (that’s for your roofer)
If you’re not sure which survey you need, ring 07833 053749 or email us and we’ll give you a straight answer. What a survey covers and does not.
What we check
- Commercial flat roofs
- Green roofs
- Flat roof membranes
- Roof terraces and balconies
- Single-ply roofs
- Liquid-applied waterproofing
Practical tips
A few practical points come up again and again on our surveys. They apply to most roofs:
- Avoid repeated repairs without finding the cause
- Share any drawings of the roof
- Do not leave water getting in
- Don’t let outlets block
Wet insulation may need attention after a leak. Your roofer can advise on that, and moisture readings can help.
Act on leaks quickly. Water under a membrane can spread.