Greater London · London and the South East
Electronic Leak Detection in Chislehurst
Independent electronic leak detection in Chislehurst. More than 5,000 surveys completed across London and South East England.
- Leaks at pipes, outlets or fixings
- Water coming in under a flat roof
- Leaking laps in the waterproofing
Signs you need electronic leak detection in Chislehurst
Joints and laps in a membrane can fail over time. A gap that is hard to see can let water in for months before it shows.
Problems we come across often include:
- Breaches hidden under paving or planting
- Damp inside with no sign on the roof
- Holes left by work on the roof
- A flat roof leak that cannot be traced
Landlords with a home close to Chislehurst station may find that a flat roof over a rented flat is easy to forget until the tenant reports a leak.
Before booking any roof surveyor
- Whether they hold professional indemnity and public liability insurance
- Whether any drone flown is registered with the CAA
- Whether the inside of the roof is included
- Whether you get a written report with photos
Electronic leak detection in Chislehurst
ELD finds breaches in the membrane but not every way water gets in. Water coming through walls, copings, rooflights or plumbing won’t show on the test. If the evidence points elsewhere, we’ll say so. The test shows breaches in the membrane, not water coming through masonry or around frames. The report makes clear what was and wasn’t tested. We’ll point you to the likely next step. We survey liquid-applied waterproofing, commercial flat roofs and flat roof membranes, and the problems we are asked to look at most are damage from equipment installers and breaches hidden under paving or planting.
London has a lot of flat roofs: rear additions, dormers, roof terraces and the roofs of blocks and offices. Coverings range from felt and asphalt to EPDM rubber, GRP fibreglass and single-ply membranes, and each fails in its own way. In Chislehurst, 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.
The report does not just list problems. For each finding, it explains what it is, why it matters and what we’d recommend, so you can decide what to do next.
- Location
- Chislehurst (BR7, BR1, BR2, SE9)
- Region
- Greater London
- Prices
- Quoted for your roof
- Report
- A written report with photos, by email
- When we survey
- Weekdays and weekends
- Insured
- PI and public liability insurance
- Call
- 07833 053749
- Page updated
- 27 October 2026
Honest limits
Our survey isn’t a RICS Level 2 or Level 3 survey, a structural engineer’s report or an asbestos survey. Other limits to bear in mind:
- How wet the insulation is
- Roofs whose membrane or build-up isn’t suitable
- Areas we cannot reach or that cannot be tested
If in doubt, ring 07833 053749 or send us an email and we will suggest the right survey before booking. What our survey covers.
Roof types and parts we check
- Single-ply roofs
- Roof terraces and balconies
- Liquid-applied waterproofing
- Commercial flat roofs
- Flat roof membranes
- Green roofs
What electronic leak detection looks like in Chislehurst
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. Flat roofs on extensions, dormers, garages and business units are found alongside them almost everywhere. The wider area around Chislehurst has a long history of building, with Bromley Palace about 2 miles south-west. Older homes in the wider area often have features worth a closer look, like 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.
The streets around a church such as Parish Church The Annunciation Of Blessed Virgin Mary are often among the oldest in a place, and if your house is among the older ones nearby, flat-roofed rear additions and dormers added over the years are worth checking. For site and facilities teams at buildings such as Red Hill Primary School, schools and public buildings often have big flat roofs, and their outlets and upstands need regular checks.
Chislehurst is about 3 miles north-west of Orpington, in Greater London. Surveys in Chislehurst work the same way as everywhere we cover: a careful inspection, photographs and a written report. Our area takes in places right across Greater London. For surveys nearby, see our London page.
Electronic leak detection in BR7, BR1, BR2 and SE9 are booked the same way as anywhere else. That includes homes and businesses on Chislehurst High Street, Sanderson Square and Wilderness Road. Main roads around Chislehurst include the A208 and B264, which makes travel easy. We also cover the places around Chislehurst: Elmstead (1 mile west), Foxbury (1 mile east), Bickley (1 mile south-west), Widmore (1 mile south-west) and Coldharbour (1 mile north-west). Larger places within reach include London (9 miles north-west), City of Westminster (12 miles north-west), Marylebone (12 miles north-west), Kensington (13 miles north-west), St Pancras (11 miles north-west) and Shoreditch (10 miles north-west).
Landmarks near Chislehurst
Typical jobs here are in homes near The Queens Head pub, Coopers School and Chislehurst Common. The nearest railway station is Chislehurst station, roughly 0.7 miles south-west. Well-known places in the area include The Glades (2.2 miles west) and Queen Mary's Hospital (1.6 miles east). Open spaces near Chislehurst include The Tarn and Summer Hill.
What affects the cost of electronic leak detection
Prices vary from roof to roof, for these reasons:
- Height and safe access
- Any need for thermal images or a drone flight
- The size of the roof
- Features like valleys, chimneys, dormers and parapets
What a survey costs comes down to the roof itself: its size, its height, how many sections it has and how safely it can be seen. We quote electronic leak detection for each roof, as the method and time depend on the roof.
Booking your survey
You do not need to know any roofing terms. Just let us know:
- Why you want a survey: buying, a leak, a storm or new work
- Whether there’s a loft hatch, a shared roof or tricky access
- Photos of the roof, taken safely from the ground or a window
- When you need the report by
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 send us an email.
How it works
A survey visit follows a simple order: we listen to what’s been worrying you, look at the roof from every safe viewpoint, photograph what we find and record our findings for the written report. It typically takes more time on a big roof than a small one, with the construction of the roof playing a part too. For a visit in Chislehurst, parking and access are the things to plan: tell us about permits, visitor bays or off-street space, which floor the property is on and how to get into the loft. On the day, the roof is looked at from the ground, from windows, from inside the roof space and from the roof where it is safe.
- We start with what you know about the roof and the leak.
- We check whether the membrane and build-up suit ELD.
- The test method is chosen to suit the roof.
- The membrane is tested and breaches are found.
- You get a report with photos of each breach.
Before the survey
- Dig out any old roof reports or invoices
- Agree roof access with the managing agent if it’s shared
- If you are buying, check with the agent that we can get in
Getting a price
Booking is simple: just phone 07833 053749 or use the contact form and give us a few details about the property and we will explain which survey suits. We confirm the price before anything is booked.
Advice
Your questions about electronic leak detection in Chislehurst
Can parking be tricky for a visit in Chislehurst?
London parking needs a little planning, so let us know about permits, bays or a driveway as you book. That way the visit can be planned around it.
Is my home in Chislehurst listed or in a conservation area?
We cannot confirm that for you, but Historic England’s list and your council can. A change of roofing material may need consent in either case, and councils can also use Article 4 directions.
Is this an asbestos survey?
No. Our report may flag materials that could contain asbestos, but only a specialist asbestos surveyor can confirm it. Buildings built or refurbished before 2000 may contain it.
Is it a structural engineer’s report?
No. We point out what can be seen, such as sagging or deflection, but we are not structural engineers and do not carry out calculations. If we think you need an engineer, the report says so.
Do I need to be at home?
If the survey includes the loft or the inside of the building, someone needs to let us in. Access is agreed with you as you book.
How does ELD work?
It uses an electrical current to find breaches in a flat roof membrane. A breach lets the current through, which shows us where the hole is.
Do you work in Chislehurst?
Yes. We survey roofs across London and South East England, Chislehurst included.
What else we do in Chislehurst
Tips that help
A little preparation and a few simple habits help, both for the survey and for the roof itself. Some pointers:
- Ask contractors to protect the membrane
- Stay off the flat roof unless needed
- Do not keep patching the same spot
- Don’t let outlets block
File the report with your roof paperwork. It shows the condition of the membrane on that date.
ELD before paving, ballast or planting goes on is worth considering. It’s easier to find holes before more layers are added.
What happens if roof problems are left?
Some flat roof leaks come from walls or details. Testing shows whether the membrane is breached, so other causes can be checked. London’s older roofs often have bitumen felt underlay or none at all, so once the slates or flashings let water past, little stops it reaching ceilings. Left alone, that means wet timbers and plaster, which is a far bigger job than the roof fault itself.
Every price we give includes VAT. Electronic leak detection is quoted for your roof, because the method depends on the roof. We confirm the price for the job before booking.
Why book us in Chislehurst
- Photographs and a written report every time
- Visits on any day of the week
- Drone flown under a CAA Flyer ID and Operator ID
- Professional indemnity and public liability insurance
Take a look at what a roof survey costs or what we found on two real jobs.