Greater London · London and the South East
Electronic Leak Detection in Brockley Hill
Electronic leak detection across Brockley Hill, with over 20 years’ experience behind it. Every survey ends with a written report and photos.
- Breaches hidden under paving or planting
- Water coming in under a flat roof
- Leaks at pipes, outlets or fixings
Electronic leak detection in Brockley Hill: what you get
ELD suits many waterproofing membranes on flat roofs, on homes, blocks and commercial buildings. It helps trace a leak you already have or to test a new membrane before it is covered. Each roof is quoted on its size and build-up. Testing can be carried out on weekdays, Saturdays or Sundays, depending on the weather. Just ask about your roof. We survey roof terraces and balconies, single-ply roofs and commercial flat roofs, and people most frequently book us about damage from equipment installers and repairs that haven’t stopped the leak.
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, each with its own weak points. In Brockley Hill, as anywhere in London, the right approach depends on what the roof is made of. Many older flat roofs are felt or asphalt, and many newer ones EPDM rubber or GRP.
We write the report in plain English, so it makes sense without any roofing background. Each point is backed by a photograph where possible, with the urgent items made clear.
- Location
- Brockley Hill (HA7, HA8, WD6)
- Region
- Greater London
- Cost
- Quoted for your roof
- Your report
- Written, with photos, emailed to you
- Survey days
- Monday to Sunday, daytime
- Cover
- Professional indemnity and public liability
- Telephone
- 07833 053749
- Updated
- 27 October 2026
Before and after the survey
You don’t need to be a roofer to help. What helps most:
- Don’t leave water getting in
- Don’t let outlets block
- Limit access to the roof
- Let us know about the membrane and build-up if you know it
Questions about the results are welcome. We will explain what was found and what it means.
Don’t leave a flat roof leak running. Water under a membrane can spread.
Leave it or get it looked at?
Repairs in the wrong place leave the leak in place. Testing shows where the membrane is actually breached. A hidden valley or parapet gutter on a London house can hold water for weeks before anyone notices. When the stain finally shows, the damage underneath is often older than it looks.
For a price for your roof in Brockley Hill, ring 07833 053749 or email us with the address and a few details. We’ll confirm the figure before booking.
What you get with us
- Thermal imaging and drones used where they help
- Visits on any day of the week
- More than 5,000 surveys completed
- An independent look at the roof
The survey, step by step
We’ll ask a few questions first, such as when any problem began and what work has been done before. Then the inspection itself takes a length of time set by 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 in Brockley Hill we work round the house, using the street, the windows, the loft and any safe vantage point behind it. If other people live in the building, let us know who can let us into the shared parts.
- We start with what you know about the roof and the leak.
- The roof is assessed for suitability first.
- We choose a low-voltage or high-voltage method to match the roof.
- We test the roof and locate any breaches.
- You get a report with photos of each breach.
Before the survey
- For a flat or shared roof, check access with the building owner or managing agent
- Keep pets out of the way during the survey
- Unlock side gates and any roof access doors
How to book
Every survey is priced before it’s booked, so you know where you stand. We quote electronic leak detection for each roof, as the method and time depend on the roof. To book, call 07833 053749 or email us.
Advice
What this survey cannot tell you
Before booking, it’s worth knowing what a survey won’t do:
- Leaks from plumbing or windows
- Areas we cannot reach or that cannot be tested
- How wet the insulation is
If you’re not sure which survey you need, phone 07833 053749 or send us an email and we will give you a straight answer. What a survey covers and doesn’t.
Roofs we survey in Brockley Hill
- Liquid-applied waterproofing
- Commercial flat roofs
- Flat roof membranes
- Green roofs
- Single-ply roofs
- Roof terraces and balconies
Brockley Hill: your questions answered
Is my home in Brockley Hill listed or in a conservation area?
Historic England’s list shows listed buildings, and the local council can tell you about conservation areas. Listed building consent is needed for changes that affect a listed building’s special interest, and conservation areas can limit changes of roofing material.
Can parking be tricky for a visit in Brockley Hill?
Usually it’s manageable with a little notice. Let us know the parking rules on your street and we’ll work around them.
Do I need to be at home?
Not always. An outside-only look can be arranged beforehand, but the loft and any rooms with damp need someone to let us in.
Will you check the loft?
Normally, if there’s one and it can be reached safely. The roof space can show things the outside can’t, such as damp timbers, staining or daylight.
How do you choose the testing method?
It depends on the membrane and the build-up. Low-voltage testing typically needs a wet surface and high-voltage methods need the membrane dry and exposed.
Will I get photos?
Yes, plenty. Pictures sit next to the findings they show, which makes the report easy to follow.
Can you survey at the weekend?
Surveys can be booked for any day of the week: weekdays, Saturdays and Sundays. Just tell us the days that suit you.
What a survey costs
A few things affect what a survey costs:
- How complicated the roof is, with its valleys, chimneys and parapets
- Commercial roofs and larger buildings
- The use of thermal imaging or a drone
- How big the roof is
What a survey costs comes down to the roof itself: how big it is, how high it is, the number of separate roofs and how it can be reached and seen safely. Electronic leak detection is quoted for your roof, because the method depends on the roof.
What we need to know
When you call or email, these details help:
- Any stains, drips or damp patches you’ve seen indoors
- Pictures from the garden or a window, if you have them
- Dates you are working to, such as exchange
- Why you want a survey: buying, a leak, a storm or new work
Our phone lines are open seven days a week. For a price or to book, call 07833 053749 or use the contact form.
What you can safely check yourself
What you cannot do safely is get up close. Roofs are fragile and slippery, and falls from height are serious. That part is for a survey, using safe viewpoints and a drone where applicable.
Look up at the roof after a storm, from the ground: broken slates or tiles in the garden, gaps along the ridge or loose lead are signs to note. Don’t go up yourself.
Electronic leak detection in Brockley Hill: local notes
Alongside Victorian and Edwardian terraces, outer London has a great many interwar semis, often with hipped roofs of 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. Alongside them, flat-roofed extensions, dormers, garages and commercial units are common almost everywhere. The wider area around Brockley Hill has a long history of building, with Headstone Manor about 3.4 miles south-west. Period homes nearby can have lead valleys, tall chimneys and a patchwork of past repairs, and any change of roofing material on a listed home needs checking with the council first.
If yours is one of the older homes in the streets near St Peter, any flat roof added at the back or on a dormer is likely to be far younger, and less durable, than the main roof. For businesses in and around places such as Broadwalk Centre, outlets and upstands on commercial flat roofs are the places to check before trouble starts. If you let a flat or house near Elstree & Borehamwood station, a flat roof over a rented flat is easy to forget until the tenant reports a leak.
Brockley Hill is about 1 mile north of Stanmore, in Greater London. Wherever you are in Brockley Hill, we can come and survey your property. We cover towns and villages across Greater London, from the larger towns to small villages. For surveys nearby, see our London page.
We cover every part of HA7, HA8 and WD6 for electronic leak detection. Whether your property is on Wood Lane, Brockley Avenue and Pipers Green Lane or a nearby road, we can help. Neighbouring places we cover for electronic leak detection include Stanmore (1 mile south), Bushey Heath (2 miles west), Belmont (2 miles south-west), Harrow Weald (2 miles south-west) and Bushey (3 miles north-west). We also work in nearby towns such as London (13 miles south-east), City of Westminster (10 miles south-east), Marylebone (10 miles south-east), Kensington (10 miles south-east), St Pancras (11 miles south-east) and Shoreditch (12 miles south-east).
Landmarks near Brockley Hill
Typical jobs here are in homes near Abercorn Arms Public House, Aylward Primary School and Edgwarebury Park and the streets around them. The nearest railway station is Elstree & Borehamwood station, roughly 1.8 miles north-east of the centre. Well-known places in the area include Royal National Orthopaedic Hospital (under half a mile north-west) and Hilfield Castle (2.2 miles north-west). Not far away are Darland's Lake and Edgware Way Grassland.