Greater London · London and the South East
Roof Leak Investigation in Lewisham
Get a clear view of the leaking roof at a property in Lewisham from an independent roof surveyor. Visits run on weekdays and weekends, in the daytime.
- Damp patches next to the stack
- Damp ceilings under a flat roof
- Staining where a gutter or parapet meets the wall
Questions from Lewisham
How do I find out if my home in Lewisham is listed?
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.
Will parking be an issue for a roof survey in Lewisham?
Sometimes, yes. If Lewisham has controlled parking where you are, a visitor permit is the easiest answer, and a driveway is even better.
Can you inspect my roof with a drone?
Yes, where it applies and safe. We fly a sub-250g drone and we are a CAA-registered drone operator (Flyer ID and Operator ID). It is included in the Drone Roof Survey and, where it applies, the Premium Survey.
Can you trace a leak in dry weather?
In most cases, yes. Damp materials can be found without rain. If a leak only appears in driving rain from one direction, we will tell you what we found and what’s most likely.
Do you carry out surveys on Saturdays and Sundays?
Surveys run on weekdays and at weekends. To arrange a date, phone 07833 053749 or drop us an email.
Does someone need to be in?
If the survey includes the loft or the inside of the building, someone needs to let us in. We will talk about access when booking.
How do I book a survey in Lewisham?
To arrange a survey, phone 07833 053749 or drop us an email and let us know the address and what you need to know. We will confirm the price and agree a day with you.
How a roof leak investigation works in Lewisham
We investigate roof leaks in Lewisham and across London and the South East. Surveys are carried out on weekdays and at weekends. We look inside and out, at flashings, valleys, chimneys, gutters and flat roof details. The findings come in a written report with photos. If water is coming in now, catch it in a bucket and keep it away from lights and sockets, and then phone 07833 053749 or email us to arrange a visit. If you’re worried about wet patches high on an inside wall and leaks that appear only in driving rain, a survey will tell you what’s going on.
Water getting into a London home often comes from a detail you cannot see from the street: the valley gutter in a butterfly roof, a parapet gutter, a chimney flashing or the flat roof over a rear extension. Whether you are tracing a leak or recording storm damage in Lewisham, those are among the first places to look. Water from a hidden gutter can run along joists and show up a room or two away.
Findings are set out part by part, from the coverings down to the gutters. You’ll see the good as well as the bad.
- Where
- Lewisham (SE13, SE8, SE6)
- Region
- Greater London
- Prices
- From £150 inc. VAT
- Your report
- A written report with photos, by email
- When we survey
- Monday to Sunday, daytime
- Cover
- Professional indemnity and public liability
- Telephone
- 07833 053749
- Last updated
- 27 October 2026
Roof by roof
Flat roof upstands and outlets
On a flat roof, a leak can show some distance from the split. Where conditions allow, moisture readings and thermal imaging help narrow it down.
Slate and tile slopes
‘Nail fatigue’ is a common cause of slipped slates. One slipped slate can be enough to cause a leak.
Roof leak investigations around Lewisham
The wider area around Lewisham has a long history of building, with Queen's House about 1.4 miles north. Period homes nearby can have lead valleys, tall chimneys and a patchwork of past repairs, and a listed home or one in a conservation area may need consent for changes of material. Close to the centre of London, a great many houses are Victorian or Edwardian terraces, many of them roofed in Welsh slate. A butterfly roof with a central valley gutter, tucked behind a parapet wall, is common on these houses. If your home in Lewisham is one of them, lead flashings, party-wall upstands and shared chimney stacks are part of the picture too. Different coverings let water in at different points, which shapes where the search starts.
Landlords with a home close to Lewisham station may find that a clear finding on where water gets in helps you brief a roofer straight away. If you run a business near Lewisham Shopping Centre, finding where water is getting in quickly keeps disruption down. Take an older house close to St Stephen's Church: water on an older roof tends to find its way in at the lead, the valleys or the chimney.
Lewisham is about 3 miles west of Eltham, in Greater London. From houses to flats and shops in Lewisham, the roof can be surveyed. Lewisham is one of the towns and villages in Greater London we cover.
Every address in SE13, SE8 and SE6 is within our area for roof leak investigations. We offer roof leak investigations to properties on Station Road, Lewisham High Street and Lewis Grove. You will find Lewisham on the B220, so it’s easy for us to get to. If you are just outside Lewisham, we cover Ladywell (1 mile south-west), St Johns (1 mile north-west), Hither Green (1 mile south-east), Blackheath (1 mile north-east) and Lee (1 mile south-east). Further out, we also cover London (4 miles north-west), City of Westminster (7 miles north-west), Marylebone (7 miles north-west), Kensington (9 miles west), St Pancras (6 miles north-west) and Shoreditch (5 miles north-west).
Local landmarks in Lewisham
In Lewisham, that means homes and buildings near St Joseph's Academy, Ladywell Fields and The Watch House, among other places. Lewisham has its own railway station: Lewisham station. Nearby you’ll also find Greenwich Castle (1.2 miles north) and Fan Museum (1.2 miles north). Open spaces near Lewisham include Knight's Hill and Brookmill Road Local Nature Reserve.
Practical tips
Small things make a difference, both for the survey and for the roof itself. Our tips:
- Don’t climb onto the roof to look
- Take dated photos of the leak
- Clear the loft hatch so we can get in
- Protect furniture and flooring under the leak
We email the report to you. It explains the likely entry point, the route the water takes and our recommendations. Basic reports come within 48 hours, Standard within 24 to 48 hours and Premium the same day.
Have leaves and moss cleared from gutters, valleys and outlets, ideally once the leaves have fallen. Many leaks start with a blocked outlet. Leave the clearing to someone with the right equipment.
What we cannot see
It’s a careful look at the leaking roof, not the whole story. Its limits include:
- Defects hidden under coverings or inside walls without opening up
- Water from pipes, tanks or heating systems
- Whether rotten timbers meet design loads
If in doubt, call 07833 053749 or use the contact form and we will suggest the right survey before booking. What our survey covers.
What we check
- Slate and tile slopes
- Flat roof details
- Rooflights and dormers
- Lead flashings
- Chimney stacks
- The roof space
- Valleys and parapet gutters
The survey, step by step
Every visit follows the same pattern: we hear what you’ve seen, inspect the roof from each safe vantage point, take photographs as we go and record our findings for the written report. It usually takes an hour or two, more where the leak is intermittent or the roof is large. Many London properties are flats or terraces with no side access, so rear slopes are viewed from windows, the loft or, where a flight is allowed, by drone. If the building has a managing agent or access rules, tell us as you book.
- You get in touch with details of the leak and any photos.
- The visit starts indoors, at the stain and in the loft.
- We check the likely entry points outside, like flashings, valleys, chimneys and gutters.
- Moisture readings and thermal imaging are used where they help.
- Your report sets out where the water is most likely getting in, with photos and recommendations.
Before we arrive
- Have keys ready for side gates, garages or roof access doors
- If you are buying, let the agent know when we’re coming
- For a flat or shared roof, check access with whoever owns or manages the building
Getting a price
Unsure which package suits your roof? It is easiest to ring 07833 053749 or drop us an email and describe the roof and why you want it surveyed. We’ll talk you through the options and what they cost.
Related advice
Landlord and commercial surveys in Lewisham
Buyers’ agents can book surveys on behalf of their clients. Reports are emailed, so they’re easy to pass on.
Landlords, agents and building managers in Lewisham and across Greater London can book any of our surveys. For a price for a let property or a block, phone 07833 053749 or drop us an email.
Also near Lewisham
Other services in Lewisham
Leave it or get it looked at?
Guesswork repairs are a common reason leaks keep coming back. The real way in may be a metre or more away. We find the probable source before anyone starts work. In a London terrace or conversion, a roof defect rarely stays your problem alone: failed flashings and blocked valley gutters can send water into more than one home. Dealing with it early is far less disruptive.
Our price is from £150, including VAT. What you pay depends on how big and how high the roof is, access and which survey you book.
What you get with us
- Thermal imaging and drone inspection where they help
- Covered by professional indemnity and public liability insurance
- More than 20 years surveying roofs
- Surveys seven days a week
Take a look at our cost guide or what we found on two real jobs.