Greater London · London and the South East
Electronic Leak Detection in Chiswick
We carry out electronic leak detection in Chiswick and the rest of Greater London. We survey on weekdays and at weekends.
- A flat roof leak that can’t be traced
- Leaks at pipes, outlets or fixings
- Leaks showing away from the breach
Roof by roof
Inverted and paved roofs
If the build-up rules out ELD, we will say so.
Single-ply membranes
Some single-ply membranes suit electronic testing well, depending on the type and build-up.
How electronic leak detection works in Chiswick
Roofs covered with paving, ballast or planting need more thought. What sits on the membrane can affect which method will work and parts may need to be lifted. We’ll discuss it with you when we quote. Any details of the build-up help, as they show what lies beneath the surface. We’ll tell you if the roof cannot be tested. If you’ve noticed leaks under green or ballasted roofs and damage from equipment installers, a survey will tell you what’s going on, on single-ply roofs, roof terraces and balconies and flat roof membranes alike.
London has a lot of flat roofs: rear additions, dormers, roof terraces and the roofs of blocks and offices. They’re covered in felt, asphalt, EPDM rubber, GRP fibreglass or single-ply membranes, and each fails in its own way. In Chiswick, as anywhere in London, the right approach depends on what the roof is made of. Older flat roofs are often felt or asphalt, newer ones rubber or GRP.
Where we cannot see part of the flat roof membrane, the report says so. That way, it’s clear what was covered and what wasn’t, and what we’d suggest next.
- Place
- Chiswick (W4, SW14)
- Region
- Greater London
- Cost
- Quoted for your roof
- Report
- Emailed report with photos and recommendations
- Survey days
- Weekdays, Saturdays and Sundays
- Cover
- PI and public liability insurance
- Phone
- 07833 053749
- Last updated
- 27 October 2026
Nearby places to Chiswick
Also in Chiswick
Useful tips for Chiswick property owners
Getting the most from electronic leak detection starts before we arrive and carries on afterwards. Some tips:
- Don’t let outlets block
- Get leaks traced quickly
- Use boards when working on the roof
- Test new membranes before covering them
If anything in the report isn’t clear, ask us. We can talk you through the findings.
Check contractors protect the waterproofing when fitting equipment. Have the roof looked at after other work.
When to book a survey in Chiswick
Roofs covered with paving, ballast or planting hide the membrane. ELD can work on some covered roofs, depending on the build-up.
A survey makes sense if you’ve noticed:
- Leaks at pipes, outlets or fixings
- Leaks through a covered membrane
- Punctures from foot traffic or tools
- Failed seams and laps
For an older house near a landmark such as St. Nicholas Church, the flat roofs on later extensions tend to wear out long before the main roof.
Before you book any roof surveyor
- Their report turnaround times
- Is VAT included in the price?
- Their insurance cover
- Their track record with similar roofs
Questions from Chiswick
Do you look at commercial flat roofs near Chiswick, like hotels?
Yes, commercial buildings, hotels included, are part of the work. Roof access is agreed with the building manager or owner beforehand.
Is parking a problem for a survey in Chiswick?
It rarely stops a survey, but it’s worth planning. Tell us what parking is available nearby, and the visit is planned around it.
What’s in the report?
You get our findings in writing, part by part, with photos, finishing with recommendations. Points are put with the most urgent first where relevant.
Does the weather affect the survey?
A survey can normally go ahead in light rain, and it can even help show where water is getting in. Strong wind or a downpour can stop drone flights and make roof access unsafe, so we’ll agree a new date if the weather isn’t suitable.
Is the repair part of the test?
No, our part is finding the breaches. The report gives your roofer the locations.
I live in a flat. Can you survey the roof?
Yes, once access has been agreed. Roofs over flats are often shared, so the building owner or managing agent needs to agree access. We can only inspect what we are given access to.
How fast do I get the report?
That depends on the survey you book: the Basic Survey report arrives within 48 hours, the Standard Survey in 24 to 48 hours and the Premium Survey the same day. The report is emailed to you.
How it works
There isn’t much for you to do on the day. Show us any stains, drips or problem areas you know about, and we’ll take it from there. The survey itself takes a time that depends on the size of the roof and how it’s built, and we’ll give you a guide when quoting. Surveys in Chiswick can be booked for any day of the week. It helps if you can point us to a visitor permit or a nearby bay, and to clear a path to the loft hatch. A back bedroom window can be the best vantage point for a rear addition, so we may ask to use one.
- We agree the area to be tested.
- We get the roof ready for testing.
- We work across the roof with the test equipment.
- Each breach found is located and recorded.
- You receive the results to pass to your roofer.
How to prepare
- Gather any invoices or paperwork from past roof work
- Mention any parking restrictions on your street
- Keep pets inside or away from the areas we’re looking at
Book a survey
To book a survey, ring 07833 053749 or email us and tell us the address and what’s prompted the survey. We’ll confirm the price before booking.
Read more
Electronic leak detection in Chiswick: local notes
Chiswick has a number of hotels within about a mile and a half, and like offices and blocks, hotels frequently sit under flat roofs. For hotels and other commercial buildings, finding the cause of a flat roof leak quickly keeps rooms in use. With Hogarth's House about 0.2 miles south-west, Chiswick sits in an area with a long building history. Older homes in the wider area often have features worth a closer look, such as lead valleys, tall stacks and roofs that have been patched over the years, and a listed home or one in a conservation area may need consent for changes of material.
Anyone responsible for a site like The William Hogarth Primary School will know that ponding and blocked outlets on a wide flat roof are worth catching before the next wet season. For hotels and guest houses around Chiswick, a roof problem found early is far less disruptive than one found by a guest, so it is worth knowing the roof’s condition.
Chiswick is about 1 mile south of Acton, in Greater London. Roofs in Chiswick get the same thorough look as anywhere else in Greater London. Chiswick is one of the towns and villages in Greater London where we work. Our London page covers surveys nearby.
We survey roofs across W4 and SW14 for electronic leak detection and the streets around it. Whether your property is on Pumping Station Road, Dale Street and Devonshire Road or anywhere close by, we can help. If you’re just outside Chiswick, we cover Turnham Green (1 mile south), Old Chiswick (1 mile south-east), Grove Park (1 mile south-west), Gunnersbury (1 mile west) and Strand-on-the-Green (1 mile west). We also work in nearby towns such as London (7 miles east), City of Westminster (5 miles east), Marylebone (5 miles east), St Pancras (6 miles north-east), Shoreditch (8 miles east) and Walthamstow (12 miles north-east).
Around Chiswick
Typical jobs here are in homes near Polish Library POSK in London, Mawson Arms and Chiswick School and the streets around them. Nearby too are Turnham Green (0.5 miles west) and The Swedish School (0.6 miles south-east). The nearest railway station is Chiswick station, roughly 0.8 miles south-west. Nearby you will also find West London Hospital (1.5 miles east) and Kurdish Museum Library and Archive (0.8 miles east). Green spaces nearby include Campden Hill and Duke's Hollow.
Rented homes, blocks and businesses
If the property is let, the agent or a tenant can let us in, at a time agreed beforehand. Surveys run seven days a week, which helps when tenants work during the week.
An agent can book and manage the survey for a landlord, and the report can go to both. Access is agreed with the tenant in advance.
Checking the roof from ground level
Your own check is a good start, but it isn’t a survey. You won’t see flashings, valleys or the backs of chimneys properly from ground level.
After heavy rain, check ceilings and the tops of walls for new stains. Photograph them and note the date, which helps when we look at the roof.