Greater London · London and the South East
Electronic Leak Detection in Riddlesdown
Find out the condition of the flat roof membrane at your property in Riddlesdown. We visit on weekdays and at weekends.
- Holes left by work on the roof
- New membranes needing a check before handover
- Repairs that haven’t stopped the leak
Riddlesdown: your questions answered
Is Riddlesdown in the area you cover?
We do. The survey and report are the same in Riddlesdown as anywhere else, and visits run on weekdays and weekends.
How do I find out if my home in Riddlesdown is listed?
You can check whether a building is listed on Historic England’s list, and your council can tell you if it is in a conservation area. Listed building consent is needed for changes that affect a listed building’s special interest, and conservation areas can limit changes of roofing material.
How much does electronic leak detection cost?
We quote for each roof individually. Send us details of the roof. Just phone 07833 053749 or drop us an email for a quote.
Which method do you use?
The roof decides the method. We’ll explain why when we quote.
Do you look in the roof space?
Where it is relevant to the survey and there’s safe access, yes. Please clear anything stored under the hatch, and if the loft can’t be reached safely, the report says so.
Is it a structural engineer’s report?
No. Visible signs such as deflection or sagging are recorded, but calculations and an engineer’s opinion are outside what we do. The report will say if you need an engineer.
Will you go up on the roof?
Only when it’s safe. Safety comes first, and fragile or steep roofs can’t always be walked on. We use safe viewpoints, the loft space and a drone where applicable, and the report records anything we couldn’t see.
How electronic leak detection works in Riddlesdown
Our ELD testing covers flat roofs in Riddlesdown and the rest of London and South East England. A visit normally takes more time on a big roof than a small one, and the build-up of the roof makes a difference too. Every roof is quoted on its size and build-up. The results come in a written report with photos. If you’re worried about breaches hidden under paving or planting and damp inside with no sign on the roof, we can find out what’s behind it.
Across London, flat roofs are everywhere, from back additions and dormers to roof terraces, blocks of flats and offices. Coverings range from felt and asphalt to EPDM rubber, GRP fibreglass and single-ply membranes, each with its own weak points. Which one is on a roof in Riddlesdown shapes how it’s checked. Older flat roofs are often felt or asphalt, newer ones rubber or GRP.
The report is written in plain words, so you do not need to be a roofer to follow it. Each point is backed by a photograph where possible, and recommendations are put with the most urgent first where relevant.
- Place
- Riddlesdown (CR8, CR2)
- Wider area
- Greater London
- Cost
- Quoted for your roof
- Report
- A written report with photos, by email
- Survey days
- Monday to Sunday, daytime
- Insurance
- PI and public liability insurance
- Phone
- 07833 053749
- Page updated
- 27 October 2026
Why act early in Riddlesdown
Leaks left running can wet the insulation and deck. Finding the breach sooner limits that. Blocked gutters and hoppers on London houses overflow and soak brickwork. A small blockage left for a few winters becomes a damp problem.
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.
Why book with us
- Two decades and more of roof surveys
- We hold a CAA Flyer ID and Operator ID
- 5,000+ surveys completed
- Drones and thermal imaging where it applies
Checking the roof from the ground
Keep a simple record: dates of leaks, photos from the ground and any work done on the roof. Send it with your enquiry.
Your own check is a good start, but it isn’t a survey. From ground level, valleys, flashings and the backs of chimneys are often out of sight.
Towns and villages near Riddlesdown
Also in Riddlesdown
Flat and commercial roofs around Riddlesdown
The wider area around Riddlesdown has a long history of building, with Addington Palace about 3 miles north-east. Period homes nearby can have lead valleys, tall chimneys and a patchwork of past repairs. Outer London has plenty of Victorian and Edwardian terraces with slate roofs, but also a great many interwar semis, often with hipped roofs in clay or concrete tiles. Bay roofs, hip ridges and dormers from later loft conversions are the details that set these houses apart. Flat roofs on extensions, dormers, garages and business units are found alongside them almost everywhere.
Shop and office owners around St George's Walk may find that outlets and upstands on commercial flat roofs are the places to check before trouble starts. Riddlesdown is in London, so parking needs planning: let us know about permits, visitor bays or off-street space when booking. For landlords with property near Riddlesdown station, the flat roof over a let home is worth a look before it becomes a tenant complaint.
Riddlesdown is about 1 mile east of Purley, in Greater London. From houses to flats and shops in Riddlesdown, the roof can be surveyed on a weekday or at the weekend. Our area takes in places right across Greater London, from the larger towns to small villages. London is in our area too.
Electronic leak detection in CR8 and CR2 work the same way as everywhere else we cover. Whether your property is on Hyde Road, Lower Road and Famet Avenue or a nearby road, we can help. You will find Riddlesdown on the A22, so it’s easy for us to get to. We also cover the places around Riddlesdown: Kenley (1 mile south), Sanderstead (1 mile north-east), South Croydon (2 miles north), Hamsey Green (2 miles south-east) and Whyteleafe (2 miles south). Further out, we also cover London (12 miles north), City of Westminster (13 miles north), Marylebone (13 miles north), Kensington (13 miles north), St Pancras (14 miles north) and Shoreditch (13 miles north).
Around Riddlesdown
Locally, jobs take us to homes and businesses close to Riddlesdown Collegiate and Dollypers Hill and the streets around them. Riddlesdown has its own railway station: Riddlesdown station. Other landmarks nearby include Croydon Airport Visitor Centre (2 miles north-west) and Purley War Memorial Hospital (1 mile north-west). Not far away are Duppas Hill and Foxley Wood.
Different roofs, different checks
Bituminous membranes
Bituminous felt and modified bitumen membranes are common. Whether ELD suits them depends on the build-up.
Inverted and paved roofs
We’ll tell you if your inverted or paved roof is not suitable.
Honest limits
In fairness, a roof survey has limits:
- Fixing the holes we find
- Water entering through details rather than the membrane
- The extent of water in the insulation
If in doubt, phone 07833 053749 or send us an email and we will point you to the right survey before booking. The full list of what we check.
Roof types and parts we check
- Flat roof membranes
- Roof terraces and balconies
- Liquid-applied waterproofing
- Single-ply roofs
- Green roofs
- Commercial flat roofs
Before and after the survey
You don’t need to be a roofer to help. What helps most:
- Keep outlets clear of debris
- Use boards when working on the roof
- Act on new leaks promptly
- Limit access to the roof
Once repairs are made, the roof can be tested again if you want to check them if the build-up allows.
Keep outlets and gutters on flat roofs clear. Standing water puts more pressure on any weak point.
What happens on the day
Where it is relevant and can be reached safely, the loft space is checked as well as the outside. Inside, we look for staining, damp, gaps and signs of movement, as far as the space allows. The whole visit usually takes as long as needed for the size of the roof and how it’s built, which we set out in the quote. In a London area like Riddlesdown, the main things to sort out are parking and access: let us know about parking, the floor the property is on, any shared entrance and loft access. On the day, the roof is looked at from the ground, from windows, from inside the roof space and from the roof where it’s safe.
- First, you tell us about the roof build-up and where water is showing.
- We confirm whether the roof is suitable for electronic testing.
- We pick the low-voltage or high-voltage method that suits the roof.
- We test the membrane and find where current is passing through it.
- You get a report showing where each breach is, for your roofer to repair.
How to prepare
- For flats, make sure roof access has been agreed
- Have any paperwork from past roof work to hand
- Jot down any questions you want answered
Booking a survey
Buyers should book once an offer has been accepted, so you have the findings in time to act on them before you exchange. For any other survey, just ring 07833 053749 or drop us an email when you are ready.