Greater London · London and the South East
Electronic Leak Detection in Roxeth
A careful look at the flat roof membrane at your property in Roxeth, with photos and a written report.
- Repairs that haven’t stopped the leak
- Leaks showing away from the breach
- Damage from equipment installers
What we look for on each type of roof
Bituminous membranes
Bituminous felt and modified bitumen membranes are common. The build-up decides which method will work.
Liquid-applied waterproofing
Small holes in liquid waterproofing may leak. ELD can help locate them on suitable roofs.
Electronic leak detection in Roxeth: what you get
We carry out electronic leak detection on flat roofs in Roxeth and across London and the South East. A visit typically 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. Every roof is quoted on its size and build-up. The results come in a written report with photos. If you’ve noticed holes left by work on the roof and waterproofing to test before it’s covered, we can find out what’s behind it, whatever the roof.
Commercial and residential blocks across London frequently have big flat roofs with plant, rooflights and access walkways. Every penetration and upstand is a place where a membrane can fail. For a building in Roxeth, access is agreed with whoever manages the roof ahead of the visit. Plant bases, rooflights and cable entries are all places where water can get in.
If any part of the flat roof membrane couldn’t be seen safely, we say so in the report. You’ll know exactly what was inspected and what wasn’t, and what we’d suggest next.
- Where
- Roxeth (HA2, HA1, UB5)
- Region
- Greater London
- Price
- Quoted for your roof
- Report
- Emailed report with photos and recommendations
- Survey days
- Weekdays and weekends
- Cover
- Professional indemnity and public liability
- Call
- 07833 053749
- Updated
- 27 October 2026
Practical tips
Over many surveys, some simple habits stand out as worth the effort:
- Share any drawings of the roof
- Get leaks traced quickly
- Stay off the flat roof unless needed
- Keep a note of leaks after rain
If anything in the report isn’t clear, ask us. We will explain what was found and what it means.
Act on leaks quickly. Water under a membrane can spread.
Local flat roofs in Roxeth
Outer London has lots of Victorian and Edwardian terraces with slate roofs, but also a great many interwar semis, frequently with hipped roofs in clay or concrete tiles. On a semi of that age, the small roofs over the bays, the hip tiles and any later dormer each need their own look. Flat roofs on extensions, dormers, garages and business units are found alongside them almost everywhere. Historic houses such as Northolt Manor, about 1.9 miles south-west, show how far back building in the area around Roxeth goes. On older houses around here, roofs frequently carry the marks of earlier repairs, from replaced slates to new lead, and the council can say whether a home is in a conservation area.
Anyone responsible for a site like Roxeth Primary School will know that large flat roofs, common on schools and other public buildings, need their outlets, upstands and coverings checked regularly. If you live in an older home near Christ Church, flat-roofed rear additions and dormers added over the years are worth checking. Roxeth is in London, so parking needs planning: let us know about parking bays, permits or a driveway when you book, as a space near the door cannot be promised.
Roxeth is about 1 mile south of Harrow, in Greater London. We survey roofs in Roxeth and the rest of Greater London. We cover towns and villages across Greater London. You can also see our page for London.
Electronic leak detection in HA2, HA1 and UB5 are booked the same way as anywhere else. Whether your property is on Lower Road, Grange Road and Dudley Road or anywhere close by, we can survey it. Nearby, we also carry out electronic leak detection in South Harrow (1 mile south-west), Harrow (1 mile north), Harrow on the Hill (1 mile east), Northwick Park (1 mile north-east) and Rayners Lane (1 mile west). Within a short drive, we also cover London (12 miles south-east), City of Westminster (9 miles south-east), Marylebone (9 miles east), Kensington (8 miles south-east), St Pancras (10 miles east) and Shoreditch (12 miles east).
What’s near Roxeth
Around Roxeth, our work takes us to homes and buildings near The White Horse pub, Orley Farm School and Northwick Park. Roxeth’s nearest station is Sudbury Hill Harrow station, roughly 0.8 miles south-east. Well-known places in the area include Clementine Churchill Hospital (0.7 miles east) and Kodak Museum (1.7 miles north). Not far away are Northala Fields and Perivale Wood.
Why get it checked now?
Water trapped under a membrane can soak insulation and decking. Finding the breach sooner limits that. Work on a London roof is rarely simple to arrange, with parking, neighbours and access all to think about. Knowing what’s needed early gives you time to plan it calmly.
All our prices include 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 us in Roxeth
- Over 20 years’ experience
- An independent view of the roof
- 5,000+ surveys completed
- Photographs and a written report every time
How it works
You don’t need to do much on the day. Point out anything you’ve noticed, such as stains, drips or loose pieces, and we will take it from there. A typical survey takes as long as needed for the membrane area and the build-up, and we’ll give you a guide when quoting. In a London conversion, the way into the roof space is often from a communal landing or the top flat. If that applies to your building, it’s useful to agree access with the neighbours or the managing agent first. Otherwise, the visit in Roxeth runs like any other.
- First, we confirm which roof areas are included.
- The surface is prepared for the chosen method.
- We work across the roof with the test equipment.
- We mark the breach locations in our records.
- You receive the results to pass to your roofer.
Getting ready for the survey
- Check the loft hatch can be reached
- If you’re buying, let the agent know when we are coming
- Dig out any old roof reports or invoices
How to book
Booking is simple: just call 07833 053749 or send us an email, let us know about the property and we will recommend the right survey. We confirm the price before anything is booked.
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When you need someone else
No survey can tell you everything, and it is better to know them up front. Bear these in mind:
- How wet the insulation is
- Carrying out the repair work
- Build-ups without a suitable layer below
If you’re not sure which survey you need, ring 07833 053749 or email us and we will give you a straight answer. What a survey covers and does not.
What we look at
- Green roofs
- Single-ply roofs
- Liquid-applied waterproofing
- Flat roof membranes
- Roof terraces and balconies
- Commercial flat roofs
Places near Roxeth
Also in Roxeth
Landlords, agents and block managers in Roxeth
Any of our surveys can be booked by landlords, agents and building managers in Roxeth. To discuss a property or a block, call 07833 053749 or send us an email.
Businesses and commercial landlords can book us too, from shops and offices to industrial units. Bigger roofs take more time.
FAQs for Roxeth
Can parking be tricky for a visit in Roxeth?
It can be, so it helps to let us know about permits, visitor bays or off-street space as you book. The visit is then planned around what’s available.
How do I find out if my home in Roxeth is listed?
Historic England’s list shows listed buildings, and the local council can tell you about conservation areas. If a home is listed, changes that affect its special interest need listed building consent, and in a conservation area re-roofing in different materials may need permission.
Do you need to get into the loft?
If the survey needs it and the loft space can be reached safely, yes. A clear path to the hatch helps, and if the loft can’t be reached safely, the report says so.
I live in a flat. Can you survey the roof?
Yes. A shared roof needs access agreed first. Mention it when you contact us and we’ll plan the survey around it.
Do you take photos of the roof?
Yes. Photos are taken throughout the survey, and they go into the written report alongside our recommendations.
What will the report tell me?
It explains what we saw, what it means and what we’d suggest, with photos throughout. Anything we couldn’t see safely is noted too, so you know exactly what was covered.
How does ELD work?
ELD passes a small electrical current across the roof to locate holes in the membrane. A breach lets the current through, which shows us where the hole is.