Greater London · London and the South East
Catford Electronic Leak Detection
Know where you stand with the flat roof membrane before you decide what to do next. Electronic leak detection in Catford.
- Leaks showing away from the breach
- Leaks that return after repairs
- Holes around roof penetrations
What happens if roof problems are left?
Repeated call-outs for the same leak add up. A clear record of where the breaches are helps break that cycle. Behind a London parapet, a blocked gutter can sit full of water without anyone seeing it. By the time a ceiling stains, the timbers underneath may have been wet for a while.
The cost of a survey depends on the roof: 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 you get with us
- More than 5,000 surveys completed
- Over 20 years’ experience
- Thermal imaging and drone inspection where they help
- Covered by professional indemnity and public liability insurance
Read how roof surveys are priced and our case studies.
Electronic leak detection in Catford: what you get
ELD is a way of pinpointing breaches in a flat roof’s waterproofing membrane. It uses a small electrical current which can only get through the membrane at a breach. It can find holes too small to spot by eye, so your roofer can repair them. You get a photo-illustrated written report of each breach found. We survey liquid-applied waterproofing, flat roof membranes and green roofs, and people most often book us about breaches hidden under paving or planting and leaks at pipes, outlets or fixings.
Offices, shops and blocks of flats across London often have large flat roofs with plant, rooflights and walkways. Every penetration and upstand is a place where a membrane can fail. For a building in Catford, access is agreed with whoever manages the roof ahead of the visit. Rooflights, plant supports and pipe entries are common places for a membrane to fail.
You can share the report with anyone who needs it: your solicitor, the seller, your insurer, a roofer or the building’s managing agent, whichever applies.
- Location
- Catford (SE6, BR1)
- Region
- Greater London
- Prices
- Quoted for your roof
- Report
- Written, with photos, emailed to you
- Survey days
- Weekdays, Saturdays and Sundays
- Insured
- Professional indemnity and public liability
- Call
- 07833 053749
- Page updated
- 27 October 2026
FAQs for Catford
Do you carry out roof surveys in Catford?
Yes, Catford is within the area we cover. We survey roofs across London and South East England. You can ring 07833 053749 or email us with the address and some details.
Will parking be an issue for a roof survey in Catford?
Parking in Catford, as in most of London, takes a little planning: a visitor permit or a bay close to the door helps a lot, so mention what’s available as you book.
How is ELD priced?
We quote for each roof individually. Let us know about the roof and where it leaks, and call 07833 053749 or drop us an email for a quote.
Can you test a green or ballasted roof?
Sometimes. It depends on the build-up and the layers above the membrane, and some may need lifting. We’ll discuss it before we quote.
Does the weather affect the survey?
A survey can normally go ahead in light rain. Heavy rain or strong wind can ground a drone and make the roof unsafe, so if conditions aren’t right we will arrange another day with you.
Can you give me structural calculations?
No. Our survey isn’t a structural engineer’s report. If we see signs that need an engineer’s opinion, we will recommend one.
What’s in the survey report?
It sets out what we found, why it matters and what we recommend, backed by photos. It also says if any part of the roof couldn’t be seen safely.
Electronic leak detection in Catford: local notes
Close to the centre of London, a great many houses are Victorian or Edwardian terraces, many of them roofed in Welsh slate. Behind many of their parapets sit butterfly roofs and valley gutters that cannot be seen from the pavement. In a house like that, shared stacks, party-wall upstands and lead flashings all need looking at as far as they can be seen. Flat roofs on extensions, dormers, garages and business units are found alongside them almost everywhere. Eltham Palace, about 2.8 miles east, is one of the historic houses in the wider area around Catford. Older homes in the wider area frequently 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.
For site and facilities teams at buildings such as Holy Cross Catholic Primary School, large flat roofs, common on schools and other public buildings, need their outlets, upstands and coverings checked regularly. If you let a flat or house near Catford Bridge station, the flat roof over a let home is worth a look before it becomes a tenant complaint. If you look after a shop, office or commercial unit, for example near Lewisham Shopping Centre, outlets and upstands on commercial flat roofs are the places to check before trouble starts.
Catford is about 5 miles east of Streatham, in Greater London. We carry out electronic leak detection in Catford for houses, flats, blocks and commercial buildings, with a written report and photographs every time. Catford is one of the places in Greater London where we work.
Surveys in SE6 and BR1 work the same way as everywhere else we cover. If you need electronic leak detection at a property on Bargery Road, Penerley Road and Inchmery Road or anywhere close by, we can survey it. Neighbouring places we cover for electronic leak detection include Bellingham (1 mile south-west), Southend (1 mile south-west), Ladywell (1 mile north), Hither Green (1 mile north-east) and Bell Green (1 mile south-west). Within a short drive, we also cover London (5 miles north-west), City of Westminster (8 miles north-west), Marylebone (8 miles north-west), Kensington (9 miles north-west), St Pancras (7 miles north-west) and Shoreditch (6 miles north-west).
Local landmarks in Catford
In Catford, that means homes and buildings near The London & Rye pub, Trinity Church of England School and Forster Memorial Park, among other places. For rail, the closest station is Catford Bridge station, roughly 0.5 miles north-west of the centre. Well-known places in the area include Greenwich Castle (2.6 miles north) and University Hospital Lewisham (0.8 miles north). The countryside around Catford includes Downham Woodland Walk and Knight's Hill.
Prices for electronic leak detection in Catford
When we price a survey, we consider:
- How tall the building is and how easy the roof is to see
- How many separate roofs there are, such as extensions, dormers and garages
- The roof’s overall size
- Chimneys, valleys, parapets and other details
For a price for your roof in Catford, call 07833 053749 or email us and tell us about the roof. We will confirm the figure before booking.
Getting in touch
To price your survey accurately, we will ask about:
- Pictures of the roof from a safe spot, if you have them
- The reason for the survey, like buying, a leak or storm damage
- Whether there is a loft hatch, a shared roof or tricky access
- The property’s address and postcode
To get a price for electronic leak detection in Catford, ring 07833 053749 or drop us an email. The address, the type of property and what you want to find out help us price the survey accurately.
What we do, step by step
Time on site depends on the size and shape of the roof; as a rough guide, the survey takes more time on a big roof than a small one, with the construction of the roof playing a part too. You are welcome to ask questions while we are there. London terraces rarely offer a view of the whole roof from one spot, so a visit in Catford moves between viewpoints: the pavement, upstairs windows, the loft and any safe spot at the back. Shared stairs or a basement flat? Tell us who holds the keys.
- We start with what you know about the roof and the leak.
- We check whether the membrane and build-up suit ELD.
- 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.
Getting ready for the survey
- If you are buying, let the agent know when we are coming
- Keep pets out of the way during the survey
- Make sure we can get to the back of the property
Book a survey
To book a survey, call 07833 053749 or use the contact form and tell us the address and what’s prompted the survey. We’ll confirm the price before you book.
Related advice
Nearby places to Catford
Also in Catford
What you can safely check yourself
You can learn a lot from the ground. Binoculars help you spot slipped slates or tiles, gaps along the ridge and a leaning stack. Never climb onto the roof to look.
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. Leave anything above ground level to a survey.
Useful tips for Catford property owners
Small things make a difference. Some pointers:
- Act on new leaks promptly
- Clear flat roof outlets regularly
- Tell us about the membrane and build-up if you know it
- Check new waterproofing before handover
The report records each breach location with photos. Pass it to your roofer to repair the breach points.
ELD before paving, ballast or planting goes on is worth considering. It’s easier to find holes before more layers are added.
What this survey can’t tell you
In fairness, a roof survey has limits:
- Sections we can’t safely access
- Roofs whose membrane or build-up is not suitable
- Leaks from plumbing or windows
If you are not sure which survey you need, call 07833 053749 or email us and we’ll give you a straight answer. What our survey covers.
Roof types and parts we check
- Commercial flat roofs
- Flat roof membranes
- Single-ply roofs
- Liquid-applied waterproofing
- Roof terraces and balconies
- Green roofs