Greater London · London and the South East
Electronic Leak Detection in St Giles
Independent electronic leak detection in St Giles. We’ve completed more than 5,000 surveys across London and the South East.
- Gaps at membrane joints
- Patched roofs that still leak
- New membranes needing a check before handover
Rented homes, blocks and businesses
Letting agents often book on a landlord’s behalf, with the report sent to whoever needs it. We agree a time with the tenant beforehand.
If the property is let, the agent or a tenant can let us in. We survey seven days a week, which can make access easier.
Electronic leak detection for homes and businesses in St Giles
Electronic testing locates holes in the waterproofing, not every cause of water getting in. Water coming through walls, copings, rooflights or plumbing will not show on the test. If the evidence points elsewhere, we will say so. The test shows breaches in the membrane, not water coming through masonry or around frames. Our report keeps that distinction clear. You will also know what to check next. Common reasons to book are leaking laps in the waterproofing and leaks at pipes, outlets or fixings, on green roofs, single-ply roofs and roof terraces and balconies.
On a London roof terrace or a flat roof over a back addition, water frequently runs under the covering before it shows. Outlets, upstands against parapet walls and joins with the main roof are frequent culprits. In a converted house in St Giles, the roof above may belong to the building rather than one flat.
We write the report in plain English, so it makes sense without any roofing background. Photos show what each point refers to.
- Location
- St Giles (W1F, W1D, W1T)
- Wider area
- Greater London
- Cost
- Quoted for your roof
- Reports
- Written, with photos, emailed to you
- When we survey
- Weekdays and weekends
- Cover
- PI and public liability insurance
- Telephone
- 07833 053749
- Last updated
- 27 October 2026
Electronic leak detection in St Giles: local notes
Welsh slate on Victorian and Edwardian terraces is a familiar sight across inner London. From the street you may see only a parapet, with a butterfly roof and a valley gutter behind it draining to the back. Shared chimney stacks, party-wall upstands and lead work come with this kind of house. Flat roofs on extensions, dormers, garages and business units are found alongside them almost everywhere. The wider area around St Giles has a long history of building, with Benjamin Franklin House about 0.5 miles south. Older roofs in the wider area can hide decades of patch repairs, so the detail matters, and any change of roofing material on a listed home needs checking with the council first.
Landlords with a home close to Tottenham Court Road station may find that a flat roof over a rented flat is easy to forget until the tenant reports a leak. If you live in an older home near Soho Baptist Chapel, flat-roofed rear additions and dormers added over the years are worth checking. For hotels and guest houses around St Giles, a roof problem found early is far less disruptive than one found by a guest.
St Giles is about 1 mile east of City of Westminster, in Greater London. From houses to flats and shops in St Giles, the roof can be surveyed on a weekday or at the weekend. Across Greater London, we cover St Giles and the places around it.
Postcode districts we cover here for electronic leak detection: W1F, W1D and W1T. Whether your property is on Duck Lane, Drury Lane and Bridle Lane or anywhere close by, we can survey it. You’ll find St Giles on the A301 and A400, which makes it simple to reach. Nearby, we also carry out electronic leak detection in Seven Dials (1 mile south), West End (1 mile south-west), Soho (1 mile south-west), Covent Garden (1 mile south-east) and Chinatown (1 mile south-west). Within a short drive, we also cover 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 St Giles
In St Giles, that means homes and buildings near LSE Shaw Library, The Crown pub and Mercers' School, among other places. Nearby too are London Nautical School (1 mile south-east) and St Anne's Churchyard (within half a mile south-west). There’s a railway station in St Giles itself: Tottenham Court Road station. Nearby you’ll also find Montfichet's Tower (1.1 miles east) and Kingly Court (0.5 miles west). Open spaces near St Giles include Barnsbury Wood and Ludgate Hill.
Nearby places to St Giles
Also in St Giles
FAQs for St Giles
Does a conservation area affect roof work in St Giles?
Check Historic England’s online list first, then ask the council about conservation areas and any Article 4 direction. The answer matters most when a change of material is on the cards.
Will parking be an issue for a roof survey in St Giles?
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 will the report tell me?
You get our findings in writing, part by part, with photos, finishing with recommendations. The most urgent items are made clear.
Will you repair the leak?
No. ELD is testing only. The report shows where each breach is for your roofer to repair.
What do I do with the report?
We email you the written report with photos and recommendations. You can use it to talk to a seller, an insurer, a roofer or a managing agent, whichever applies.
Is this an asbestos survey?
No. Our report may flag materials that could contain asbestos, but confirming it is a job for a specialist asbestos surveyor. It may be present in buildings built or refurbished before 2000.
What if it rains on the day?
Some surveys depend on the weather more than others. Drone flights need calm, dry weather, and thermal imaging works best after a sunny day, with a dry roof and little wind. If the conditions are not right, we will talk to you about another date.
Why it is worth a survey now in St Giles
Some breaches are too small to see. ELD picks up breaches a visual check might miss, on suitable membranes. Work on a London roof is rarely simple to arrange, with parking, neighbours and access all to think about. That’s a good reason to find problems early, while there’s time to plan.
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 your roof before booking.
Why book with us
- 5,000+ roofs surveyed
- Customer satisfaction of 98%
- We hold a CAA Flyer ID and Operator ID
- Thermal imaging and drones used where they help
Read what a roof survey costs or our case studies.
What we look for on each type of roof
Bituminous membranes
Many flat roofs use bitumen-based membranes. Whether ELD suits them depends on the build-up.
EPDM rubber roofs
ELD on EPDM depends on the product and the layers. We check before we quote.
Useful tips for St Giles property owners
Nothing here needs a ladder. Our suggestions:
- Share any drawings of the roof
- Clear flat roof outlets regularly
- Test new membranes before covering them
- Keep a note of leaks after rain
After your roofer repairs the breaches, a retest can confirm them if the build-up allows.
Don’t leave a flat roof leak running. The longer water gets in, the more insulation and decking can be affected.
The survey, 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. A typical visit takes a time that depends on the membrane area and the build-up, which we set out in the quote. London terraces rarely offer a view of the whole roof from one spot, so a visit in St Giles moves between viewpoints: the pavement, upstairs windows, the loft and any safe spot at the back. Shared stairs or a basement flat? Tell us who holds the keys.
- We start with what you know about the roof and the leak.
- We check whether the membrane and build-up suit ELD.
- 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.
Before we arrive
- Jot down any questions you want answered
- Gather any invoices or paperwork from past roof work
- If the roof is shared, arrange access with whoever manages the building
Arrange a survey
Our phone lines are open seven days a week, including Saturdays and Sundays. To book or ask a question, call 07833 053749 or drop us an email.
Advice
Should I look at the roof myself first?
A DIY look is useful, but it isn’t a survey. From ground level, valleys, flashings and the backs of chimneys are often out of sight.
Watch the gutters in a downpour, from a window or the ground. Water spilling over the edge can point to a blockage or a sagging run.