Greater London · London and the South East
Electronic leak detection in Woodside, Greater London
We take a careful look at the flat roof membrane at your property in Woodside, and put it all in a photo-illustrated written report.
- Leaking laps in the waterproofing
- Repairs that haven’t stopped the leak
- Stains far from any visible defect
What this survey can’t tell you
We only report what can be seen safely on the day, so there are some things a survey can’t cover:
- Sections we can’t safely access
- Water entering through details rather than the membrane
- The extent of water in the insulation
If you’re not sure which survey you need, phone 07833 053749 or drop us an email and we will give you a straight answer. What a survey covers and does not.
What we check
- Commercial flat roofs
- Flat roof membranes
- Green roofs
- Single-ply roofs
- Roof terraces and balconies
- Liquid-applied waterproofing
Electronic leak detection in Woodside
There are different ELD methods. Low-voltage testing is typically done with the surface wet, while high-voltage testing needs a dry, exposed membrane. The right method depends on the membrane and the build-up of the roof, and we’ll explain our choice. If neither method suits your roof, we will tell you at the outset. If you’ve noticed waterproofing to test before it’s covered and leaks at pipes, outlets or fixings, we can find out what’s behind it.
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 Woodside, as anywhere in London, the right approach depends on what the roof is made of. Older flat roofs are often felt or asphalt, newer ones rubber or GRP.
It is not only a list of defects. It explains what we found, why it matters and what we recommend, so you can decide what to do next.
- Place
- Woodside (CR0, SE25, CR9)
- Region
- Greater London
- Prices
- Quoted for your roof
- Report
- Emailed report with photos and recommendations
- Survey days
- Weekdays and weekends
- Cover
- PI and public liability insurance
- Telephone
- 07833 053749
- Updated
- 27 October 2026
DIY checks: what’s safe
After heavy rain, check ceilings and the tops of walls for new stains. Take a photo and write down when you saw it.
After strong wind, take a look from the pavement or garden: broken slates or tiles in the garden, gaps along the ridge or loose lead are signs to note. Don’t go up yourself.
Nearby places to Woodside
More services for Woodside
FAQs for Woodside
Is Woodside in the area you cover?
Yes, Woodside is one of the places we work. The survey and report are the same in Woodside as anywhere else.
Is my home in Woodside listed or in a conservation area?
For listing, use Historic England’s list; for conservation areas, ask the council. It matters most if you’re planning to re-roof in a different material.
Does ELD include fixing the breach?
No, our part is finding the breaches. The report gives your roofer the locations.
How do you choose the testing method?
It depends on the membrane and the build-up. Low-voltage methods are typically carried out on a wet roof and high-voltage methods need the membrane dry and exposed.
Do you need to get into the loft?
If it is needed and safe to reach, yes. Inside, we look for damp, staining, gaps and sagging.
Can you survey a shared roof?
Yes, if the building owner or managing agent agrees access. We check the parts we’re given access to, and the report makes that clear.
Do you use drones?
Yes, where it is applicable. Our sub-250g drone is flown by a CAA-registered operator with a Flyer ID and Operator ID, and the airspace and weather are checked before every flight.
How the survey changes by roof type
Green and ballasted roofs
Parts of the covering may have to come up. We discuss this before quoting.
Liquid-applied waterproofing
Pinholes in a coating can let water through. ELD can help locate them on suitable roofs.
Practical tips
A few practical points come up again and again on our surveys. They’re worth knowing whatever the roof:
- Record dates and spots where water appears
- Find the breach before more patching
- Tell us about the membrane and build-up if you know it
- Consider ELD before paving or planting goes on
Once repairs are made, the roof can be tested again if you want to check them if the build-up allows.
ELD before paving, ballast or planting goes on is worth considering. Finding breaches is simpler at that stage.
Do you need electronic leak detection in Woodside?
New membranes can have defects from installation. Testing before the roof is covered or handed over helps find them.
A survey makes sense if you’ve noticed:
- New membranes needing a check before handover
- Leaks under green or ballasted roofs
- Holes around roof penetrations
- Patched roofs that still leak
Take a building like St Thomas Becket Catholic Primary School: ponding and blocked outlets on a wide flat roof are worth catching before the next wet season.
Choosing a roof surveyor
- How they’ll see the roof: from ground level, the loft, the roof or by drone
- Whether you can ask questions once you have the report
- Whether you get a written report with photos
- Whether the price includes VAT
How the survey works
When we arrive, we start by asking what you’ve noticed and what you need to know. After that, we look at everything we can see safely, from the ground, from windows, in the roof space and by drone where applicable. Most surveys take more time on a big roof than a small one, with the construction of the roof playing a part too. In Woodside, visits are available on weekdays and at weekends. London parking is often by permit or pay-and-display, so it’s useful to know what’s near you, and to clear a path to the loft hatch. A back bedroom window can be the best vantage point for a rear addition, so we may ask to use one.
- First, we confirm which roof areas are included.
- We get the roof ready for testing.
- 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.
Preparing for the visit
- Find any records of previous roof work
- If you’re buying, let the agent know when we’re coming
- Leave side gates unlocked
Booking a survey
To get a price for electronic leak detection in Woodside, ring 07833 053749 or drop us an email. Some details about the property and the roof help us price the survey accurately.
Related advice
Flat and commercial roofs around Woodside
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. Hips, bay roofs and later loft conversions are typical of those semis, if your home is one of them. Mixed in with those pitched roofs are lots of flat ones, over rear extensions, dormers, garages and shops. About 2.4 miles south-east lies Addington Palace, a reminder of how long the area around Woodside has been built on. 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 the council can say whether a home is in a conservation area.
If you run a business near Whitgift Centre, flat roofs over shops and units are easy to forget until water comes through a ceiling. For a London address like Woodside, it helps to know about controlled parking before the day.
Woodside is about 6 miles south of New Cross, in Greater London. In Woodside, as across Greater London, every roof gets the same careful survey. Our Greater London coverage includes Woodside. London is in our area too.
We survey roofs across CR0, SE25 and CR9 for electronic leak detection and the streets around it. We cover properties on Long Lane, Tudor Road and Coe Avenue. Other places close to Woodside include Ashburton (1 mile south), Addiscombe (1 mile south), Shirley Oaks (1 mile south-east), Monks Orchard (1 mile south-east) and Shirley (1 mile south-east). Further out, we also cover London (8 miles north), City of Westminster (9 miles north-west), Marylebone (10 miles north), Kensington (10 miles north-west), St Pancras (10 miles north) and Shoreditch (10 miles north).
Local landmarks in Woodside
We work in homes and buildings around The Beehive pub, Oasis Academy Shirley Park and Ashburton Park, among other places. The closest station to Woodside is Norwood Junction station, about 0.7 miles north-west of the centre. Nearby you will also find Whitgift Centre (1.7 miles south-west) and Crystal Palace Museum (2.2 miles north). Open spaces near Woodside include Bramley Bank and Duppas Hill.