Greater London · London and the South East
Electronic leak detection in Ham, Greater London
Electronic leak detection to pinpoint holes in flat roof membranes in Ham, using drones and thermal imaging where applicable. Call or email for a price.
- Leaks through a flat roof with no obvious cause
- Leaks at pipes, outlets or fixings
- Leaks that return after repairs
What happens if roof problems are left?
Repeated call-outs for the same leak add up. A clear record of where the breaches are helps break that cycle. Work on a London roof is rarely simple to arrange, with parking, neighbours and access all to think about. That is a good reason to find problems early, while there is time to plan.
For a price for your roof in Ham, phone 07833 053749 or send us an email and let us know about the roof. The price is agreed before a date is set.
Why us?
- Insured for professional indemnity and public liability
- Weekday and weekend surveys
- An independent view of the roof
- Customer satisfaction of 98%
Take a look at our cost guide or what we found on two real jobs.
Electronic leak detection for homes and businesses in Ham
Our ELD report shows where each breach was found with photos. It tells your roofer exactly where to repair instead of hunting for the leak. Repair costs aren’t part of the report; that’s for your roofer to price. A retest after repairs can check the work if the build-up allows. Results come in a written report with photos. We survey single-ply roofs, flat roof membranes and liquid-applied waterproofing, and people most often book us about new membranes needing a check before handover and leaking laps in the waterproofing.
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 Ham, 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.
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.
- Where
- Ham (TW10, KT2, TW11)
- Region
- Greater London
- Cost
- Quoted for your roof
- Reports
- Emailed report with photos and recommendations
- When we survey
- Monday to Sunday, daytime
- Insured
- PI and public liability insurance
- Phone
- 07833 053749
- Page updated
- 27 October 2026
What we can’t see
A survey is a proper look at the flat roof membrane, but it cannot do everything. Its limits include:
- Repairing the breaches (that’s for your roofer)
- Build-ups without a suitable layer below
- Sections we cannot safely access
If in doubt, phone 07833 053749 or send us an email and we’ll point you to the right survey before booking. The full list of what we check.
What this survey covers
- Roof terraces and balconies
- Commercial flat roofs
- Flat roof membranes
- Green roofs
- Single-ply roofs
- Liquid-applied waterproofing
Also in Ham
What electronic leak detection looks like in Ham
Further from the centre, London’s housing takes in interwar semis with hipped roofs in clay or concrete tiles as well as slate-roofed terraces. Hips, bay roofs and later loft conversions are typical of those semis, if your home is one of them. Flat roofs fill the gaps in between, on extensions, garages, dormers and business premises. Within a mile and a half or so of Ham there are several hotels, and like offices and blocks, hotels often sit under flat roofs. For hotels and other commercial buildings, finding the cause of a flat roof leak quickly keeps rooms in use.
If you look after a shop, office or commercial unit, for example near Bentall Centre, flat roofs over shops and units are easy to forget until water comes through a ceiling. The streets around a church like Ham Christian Centre are often among the oldest in a place, and if yours is one of the older homes nearby, the flat roofs on later extensions tend to wear out long before the main roof.
Ham is about 1 mile south-east of Twickenham, in Greater London. We provide electronic leak detection for homes and businesses in Ham. Our area takes in places right across Greater London. For surveys nearby, see our London page.
Postcode districts we cover here for electronic leak detection: TW10, KT2 and TW11. That includes homes and businesses on New Road, Lock Road and Cave Road. Ham sits on or near the A307. We also cover Petersham (1 mile north), Eel Pie Island (1 mile north-west), Strawberry Hill (1 mile west), Teddington (1 mile south-west) and Richmond (1 mile north). Within a short drive, we also cover London (10 miles north-east), City of Westminster (9 miles north-east), Marylebone (9 miles north-east), Kensington (6 miles north-east), St Pancras (10 miles north-east) and Shoreditch (12 miles north-east).
What’s near Ham
We work in homes and buildings around Grey Court School, The New Inn Public House and Sudbrook Park and the streets around them. Ham’s nearest station is Teddington station, about 1.2 miles south-west of the centre. Other landmarks nearby include Eel Pie Island Museum (1.1 miles north-west) and Bentall Centre (1.6 miles south). Open spaces near Ham include Kew Gardens Lake and Richmond Hill.
FAQs for Ham
Can parking be tricky for a visit in Ham?
Sometimes, yes. Where there are permit zones, a visitor permit or nearby pay-and-display bay works well, and a driveway is even better.
Does a conservation area affect roof work in Ham?
For listing, use Historic England’s list; for conservation areas, ask the council. The answer matters most when a change of material is on the cards.
What does electronic leak detection do?
The waterproofing membrane normally stops an electrical current, so wherever there is a hole, it passes through. That lets us find breaches that are too small to see.
When does the report arrive?
Report times are set by the package. Basic: within 48 hours. Standard: 24 to 48 hours. Premium: the same day. If you have a deadline, such as an exchange date, tell us when you book.
Can you give me structural calculations?
No. We’re experienced roof surveyors, and visible signs like sagging are noted, but we do not provide calculations or an engineer’s opinion. If one is needed, the report says so.
Do I need to be at home?
It depends on what we need to see. Inside the building and in the loft, we need someone to let us in, while outside access can be discussed when booking.
Do you look in the loft space?
Where it is relevant to the survey and there’s safe access, yes. Please clear anything stored under the hatch, and if the loft cannot be reached safely, the report says so.
Useful tips for Ham property owners
Small things make a difference, both for the survey and for the roof itself. Some pointers:
- Don’t keep patching the same spot
- Don’t let outlets block
- Ask contractors to protect the membrane
- Tell us about the membrane and build-up if you know it
Keep the report with the roof’s records. It shows the condition of the membrane on that date.
Ask trades working on the roof to protect the membrane when they work up there. Check the roof after they’ve finished.
What we do, step by step
We photograph the roof as we go, so the report shows exactly what we saw. We take close-ups from wherever is safe, including by drone where it’s applicable and the weather allows. Most surveys take as long as needed for the membrane area and the build-up, which we set out in the quote. 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. If the building has a managing agent or access rules, tell us when booking.
- We agree the area to be tested.
- We get the roof ready for testing.
- Testing runs across the agreed area.
- Each breach found is located and recorded.
- The report is sent for your roofer to act on.
Getting ready for the survey
- If you’re buying, check with the agent that we can get in
- For a flat or shared roof, check access with the freeholder or managing agent
- Tell us about any leaks, stains or damp patches you know of
Arrange a survey
Getting a price is simple: just phone 07833 053749 or use the contact form, tell us about the property and we’ll explain which survey suits. We confirm the price before anything is booked.
Advice
What we are asked to look at in Ham
Water travels under flat roof membranes. The leak may show some distance from where water gets in which makes it hard to find by looking.
A survey can pick up problems such as:
- Water coming in under a flat roof
- Leaking laps in the waterproofing
- Leaks at pipes, outlets or fixings
- New membranes needing a check before handover
If you let a flat or house near Teddington station, flat roofs over rear additions and dormers in rented property are worth checking between tenancies.
Questions to ask before booking
- How they’ll see the roof: from ground level, the loft, the roof or by drone
- Which limits apply to the survey
- What exactly goes into their report
- Is VAT included in the price?
How we price electronic leak detection
Prices vary from roof to roof, and it comes down to:
- How complicated the roof is, with its valleys, chimneys and parapets
- The use of thermal imaging or a drone
- How tall the building is and how easy the roof is to see
- Roof area
Every price we give includes VAT. Electronic leak detection is quoted for your roof, because the method depends on the roof. We confirm the price for your roof before booking.
What we need to know
The more you tell us, the easier it is to price the survey. When you get in touch, it is useful to mention:
- The type of building and roof, like pitched or flat
- Whether there is a loft hatch, a shared roof or tricky access
- Pictures of the roof from a safe spot, if you have them
- Your timetable, such as an exchange date
Our phone lines are open seven days a week, including Saturdays and Sundays. To book or ask a question, ring 07833 053749 or email us.