Greater London · London and the South East
Electronic leak detection in Lee, Greater London
Electronic leak detection in Lee, with over 20 years’ experience behind it. Every survey ends with a written report and photos.
- Damp inside with no sign on the roof
- Holes left by work on the roof
- Leaks at pipes, outlets or fixings
Electronic leak detection in Lee
Water can travel under a flat roof membrane before it shows inside. So the stain inside rarely sits under the hole. ELD tests the waterproofing directly, to find where it has been breached. It’s testing only and leave the repair to your roofer. On a suitable roof, it takes the guesswork out of finding the hole. The results then follow in a written report with photos. We are often asked to look into new membranes needing a check before handover and punctures from foot traffic or tools, across commercial flat roofs, green roofs and liquid-applied waterproofing.
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, and each fails in its own way. Which one is on a roof in Lee shapes how it’s checked. Many older flat roofs are felt or asphalt, and many newer ones EPDM rubber or GRP.
Every survey ends with a written report, with photos, sent by email. It sets out the condition of the flat roof membrane, any defects and our written recommendations.
- Location
- Lee (SE12, SE13, SE3)
- Wider area
- Greater London
- Cost
- Quoted for your roof
- Report
- Emailed report with photos and recommendations
- When we survey
- Weekdays, Saturdays and Sundays
- Cover
- Professional indemnity and public liability
- Call
- 07833 053749
- Updated
- 27 October 2026
What happens on the day
Where it’s 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. All in, the survey usually takes more time on a big roof than a small one, and the build-up of the roof makes a difference too. In a London area like Lee, the main things to sort out are parking and access: tell us about permits, visitor bays or off-street space, which floor the property is on and how to get into the loft. We then look at what can be seen safely from ground level, windows, the loft and, where it’s safe, the roof itself.
- First, we confirm which roof areas are included.
- We get the roof ready for testing.
- We work across the roof with the test equipment.
- Each breach found is located and recorded.
- You receive the results to pass to your roofer.
Getting ready for the survey
- Leave a clear route to the loft
- Let us know about parking near the property
- Leave side gates unlocked
How to book
If you are buying, it helps to book soon after your offer is accepted, so you have the findings in time to act on them before you exchange. Otherwise, simply ring 07833 053749 or use the contact form whenever suits you.
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Common questions in Lee
Can parking be tricky for a visit in Lee?
It can be, so it’s useful to let us know about permits, visitor bays or off-street space as you book. The visit is then planned around what’s available.
Do you cover commercial flat roofs around Lee?
Yes, commercial flat roofs are part of what we cover. Larger commercial roofs are quoted for the building.
I live in a flat. Can you survey the roof?
Yes, if whoever owns or manages the building agrees access. On a shared roof we can only inspect the parts we’re allowed to reach.
Do you carry out surveys on Saturdays and Sundays?
Surveys can be booked for any day of the week: weekdays, Saturdays and Sundays. Just let us know the days that suit you.
Can you inspect my roof with a drone?
Yes, where it is applicable. We hold a CAA Flyer ID and Operator ID and fly a drone under 250g, and every flight depends on the airspace and the weather.
What happens after the survey?
You will receive the report by email, and what you do next is up to you: use it with a seller, an insurer, a roofer or a managing agent.
Will you photograph what you find?
Yes, plenty. Pictures sit next to the findings they show.
Tips from our surveys
A few practical points come up again and again on our surveys. They apply to most roofs:
- Keep outlets clear of debris
- Let us know about the membrane and build-up if you know it
- Note where leaks show inside and when
- Use boards when working on the roof
If we think the leak is not coming through the membrane, the report says so, with a suggestion of what to check next.
Keep people off the flat roof unless they need to be there. Feet and dropped tools are a common cause of holes.
Why act early in Lee
Repeated call-outs for the same leak add up. A report showing the breach points gives your roofer a clear target. Work on a London roof is rarely simple to arrange, with parking, neighbours and access all to think about. Knowing what’s needed early gives you time to plan it calmly, rather than in a rush after a leak.
The cost of a survey depends on the roof: its size, its height, how many sections it has and how it can be reached and seen safely. We quote electronic leak detection for each roof, as the method and time depend on the roof.
What you get with us
- Two decades and more of roof surveys
- Visits on any day of the week
- An independent look at the roof
- Drone flown under a CAA Flyer ID and Operator ID
Signs you need electronic leak detection in Lee
Seams are a common weak point in flat roof waterproofing. Small openings at laps can leak for months before it shows.
Most people get in touch when they’ve noticed one of these:
- A flat roof leak that cannot be traced
- Punctures from foot traffic or tools
- Patched roofs that still leak
- Leaks showing away from the breach
For landlords with property near Lee station, flat roofs over rear additions and dormers in rented property are worth checking between tenancies.
Questions to ask before you book
- Whether the loft is part of the inspection
- Are they insured for the work?
- How they plan to inspect the roof safely
- Is there a chance to talk the report through?
Honest limits
No survey can tell you everything, and it’s better to know them up front. Keep these in mind:
- Fixing the holes we find
- Parts of the roof covered by fixed equipment
- Build-ups without a suitable layer below
If you are not sure which survey you need, ring 07833 053749 or email us and we’ll give you a straight answer. What our survey covers.
Roofs we survey in Lee
- Single-ply roofs
- Liquid-applied waterproofing
- Green roofs
- Roof terraces and balconies
- Flat roof membranes
- Commercial flat roofs
Other services in Lee
How we price electronic leak detection
What a survey costs depends on the time and equipment it needs. The main factors are:
- The shape of the roof and its details
- Extra roofs, like extensions, dormers or garages
- The height of the building and how the roof can be seen safely
- How big the roof is
Every price we give includes VAT. Electronic leak detection is quoted for your roof, because the method depends on the roof. You will know the exact price before booking.
Getting in touch
Here’s what helps us most when you get in touch:
- The kind of building and roof involved
- Your postcode, so we can check access and travel
- When you need the report by
- Whether there’s a loft hatch, a shared roof or tricky access
We confirm the exact price before booking, so you know where you stand. We quote electronic leak detection for each roof, as the method and time depend on the roof. For a price for your roof, ring 07833 053749 or use the contact form.
Local flat roofs in Lee
The wider area around Lee has a long history of building, with Eltham Palace about 1.7 miles east. Older roofs in the wider area can hide decades of patch repairs, so the detail matters, and the council can say whether a home is in a conservation area. Inner London’s Victorian and Edwardian terraces frequently have Welsh slate roofs. Behind many of their parapets sit butterfly roofs and valley gutters that can’t be seen from the pavement. Lead flashings, party-wall upstands and shared chimney stacks are typical of these houses, if yours is one of them. Mixed in with those pitched roofs are a good many flat ones, over rear extensions, dormers, garages and shops.
For site and facilities teams at buildings such as Brindishe Lee School, schools and public buildings often have big flat roofs, and their outlets and upstands need regular checks. If you run a hotel or guest house in or near Lee, a roof problem can mean rooms out of use, so it is worth knowing the roof’s condition.
Lee is about 2 miles south of Greenwich, in Greater London. Lee is part of the area we cover across London and South East England. Our area takes in places right across Greater London. For surveys nearby, see our London page.
Electronic leak detection in SE12, SE13 and SE3 are booked the same way as anywhere else. That includes homes and businesses on Old Road, Manor Lane and Mallet Road and the roads around them. Nearby, we also carry out electronic leak detection in Hither Green (1 mile west), Horn Park (1 mile south-east), Lewisham (1 mile north-west), Ladywell (1 mile west) and Blackheath (1 mile north). Within a short drive, we also cover London (6 miles north-west), City of Westminster (8 miles north-west), Marylebone (8 miles north-west), Kensington (10 miles west), St Pancras (7 miles north-west) and Shoreditch (6 miles north-west).
Local landmarks in Lee
Around Lee, our work takes us to homes and buildings near Manor House Gardens, Trinity Church of England School and International Academy of Greenwich. Lee has its own railway station: Lee station. Other landmarks nearby include Lewisham Shopping Centre (1.1 miles north-west) and Prefab Museum (1.3 miles south). Not far away are Summer Hill and Birdbrook Road Nature Reserve.