Greater London · London and the South East
Electronic Leak Detection in Sipson
Electronic leak detection to pinpoint holes in flat roof membranes in Sipson, carried out by an experienced roof surveyor. You get a clear written report with photos.
- New membranes needing a check before handover
- Repairs that haven’t stopped the leak
- Leaking laps in the waterproofing
How electronic leak detection works in Sipson
ELD is a way of pinpointing breaches in a flat roof’s waterproofing membrane. It uses a small electrical current that passes through the membrane only where there is a breach. It can find holes too small to spot by eye so your roofer knows exactly where to repair. You get a report with photos of each breach found. If you’ve noticed holes left by work on the roof and leaks that return after repairs, 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 converted house in Sipson, the roof above may belong to the building rather than one flat.
We keep jargon out of it: if work is needed, the report says so clearly, along with how urgent it is.
- Location
- Sipson (UB7, UB3)
- Region
- Greater London
- Cost
- Quoted for your roof
- Your report
- Emailed report with photos and recommendations
- Appointments
- Weekdays, Saturdays and Sundays
- Insured
- Professional indemnity and public liability
- Phone
- 07833 053749
- Page updated
- 27 October 2026
Common roof problems in Sipson
Holes in a membrane often come from feet, tools or debris. Some are too small to see but water still finds them.
We are often asked to look at:
- Damp inside with no sign on the roof
- Waterproofing to test before it is covered
- Repairs that haven’t stopped the leak
- Damage from equipment installers
Hotels and guest houses near Sipson can’t easily close rooms for a leak.
What to check before booking
- Are they insured for the work?
- What the report includes, and whether it has photographs
- If they fly a drone, whether they hold a CAA Flyer ID and Operator ID
- Their report turnaround times
Towns and villages near Sipson
Also in Sipson
How it works
Once we have finished looking, we write up our findings as a written report with photos, emailed to you. As for time on site, most surveys take longer on a large roof than a small one, with the construction of the roof playing a part too. Many London properties are flats or terraces with no side access, so rear slopes are viewed from windows, the loft or, where a flight is allowed, by drone. Mention any building rules, key holders or managing agents as you book.
- We ask about the roof, its age, its membrane and where leaks appear inside.
- We confirm whether the roof is suitable for electronic testing.
- The method depends on the membrane and what sits above and below it.
- The roof is tested and any breaches are located.
- The breaches are recorded with photos in a report for your roofer.
Getting ready for the survey
- Find any records of previous roof work
- For a flat or shared roof, check access with the freeholder or managing agent
- Keep pets inside or away from the areas we are looking at
Arrange a survey
You can call us seven days a week, including Saturdays and Sundays. To book or ask a question, call 07833 053749 or send us an email.
Advice
Common questions in Sipson
Will parking be an issue for a roof survey in Sipson?
Parking in Sipson, as in most of London, takes a little planning: a visitor permit or a bay close to the door helps a lot.
Do you look at commercial flat roofs near Sipson, such as hotels?
Yes. As well as homes, we check 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 before the visit.
Which days do you carry out surveys?
Visits run seven days a week in the daytime. Let us know your preferred days as you book.
Is Sipson in your area?
Yes. We survey roofs in Sipson and the rest of Greater London. For a price, call 07833 053749 or drop us an email.
What does the report include?
You get our findings in writing, part by part, with photos, and ends with what we recommend. Points are put by urgency where it matters.
Do you climb onto every roof?
Only when it’s safe. Some roofs are too steep or fragile to walk on safely. We use safe viewpoints, the loft space and a drone where applicable, and the report records anything we couldn’t see.
How much time does ELD need?
The roof’s size and build-up decide how long it takes. We’ll give you an idea when we quote.
Prices for electronic leak detection in Sipson
Not every roof costs the same to survey, and it comes down to:
- How complicated the roof is, with its valleys, chimneys and parapets
- The type of building, from a house to a block or an office
- The number of roofs, including extensions and garages
- The roof’s overall size
To find out what your survey will cost, call 07833 053749 or drop us an email and let us know about the roof. We will confirm the figure before booking.
Getting in touch
If you can, have these to hand when you get in touch:
- The reason for the survey, like buying, a leak or storm damage
- Anything about access we should know
- The kind of building and roof involved
- Where any leaks, stains or damp patches show inside
Photos help, if you have them. Pictures from ground level or a window are fine, and please do not climb up for a closer look. To get started, call 07833 053749 or email us.
What electronic leak detection looks like in Sipson
Historic houses such as Osterley House, about 4.3 miles east, show how far back building in the area around Sipson goes. Older roofs in the wider area can hide decades of patch repairs, so the detail matters, and the council can say whether a home is in a conservation area. In outer London, interwar semis with hipped, tiled roofs sit alongside older slate-roofed terraces. Bay roofs, hip ridges and dormers from later loft conversions are the details that set these houses apart. Mixed in with those pitched roofs are plenty of flat ones, over rear extensions, dormers, garages and shops.
For businesses in and around places like The Chimes, the flat roofs over shops and commercial units are worth checking before a leak, not after. For landlords with property near West Drayton station, flat roofs over rear additions and dormers in rented property are worth checking between tenancies.
Sipson is about 1 mile south-east of West Drayton, in Greater London. Sipson is part of the area we cover and the surrounding area across London and South East England. Our Greater London coverage includes Sipson and the places around it. You can also see our page for London.
All of UB7 and UB3 is within our area for electronic leak detection. You will find streets such as East Road, Sipson Lane and Sipson Road. We also cover Harlington (1 mile south-east), Harmondsworth (1 mile south-west), Heathrow (2 miles south), Cranford (2 miles south-east) and Longford (2 miles south-west). Larger places within reach include London (15 miles east), City of Westminster (13 miles east), Marylebone (13 miles east), Kensington (11 miles east), St Pancras (14 miles east) and Hampstead (12 miles east).
Local landmarks in Sipson
Locally, jobs take us to homes and businesses close to Lake Farm Country Park, Harlington Community School and The Plough pub. For rail, the closest station is West Drayton station, roughly 1.4 miles north-west. Other landmarks nearby include The Chimes (3.7 miles north) and Harlington (within half a mile south). Open spaces near Sipson include Northala Fields and Crane Meadows.
Why act early in Sipson
Not every leak is in the membrane. Testing shows whether the membrane is breached so attention can go to the right place. Blocked gutters and hoppers on London houses overflow and soak brickwork, which can lead to damp inside. A small blockage left for a few winters becomes a damp problem.
Every price we give includes VAT. We quote electronic leak detection for each roof, as the method and time depend on the roof. We confirm the price for the job before booking.
Why us?
- CAA-registered drone operator (Flyer ID and Operator ID)
- Customer satisfaction of 98%
- Two decades and more of roof surveys
- Professional indemnity and public liability insurance
Different roofs, different checks
EPDM rubber roofs
ELD on EPDM depends on the product and the layers. We check this first.
Inverted and paved roofs
We will tell you if your inverted or paved roof isn’t suitable.
What this survey cannot tell you
Some things can’t be seen without opening up the roof, so a survey has limits:
- How wet the insulation is
- Some conductive membranes
- Water entering through details rather than the membrane
Not sure which survey suits your roof? You can call 07833 053749 or drop us an email and we’ll tell you before booking. What a survey covers and does not.
Roofs we survey in Sipson
- Roof terraces and balconies
- Green roofs
- Liquid-applied waterproofing
- Flat roof membranes
- Commercial flat roofs
- Single-ply roofs