Greater London · London and the South East
St John's Wood Roof Leak Investigation
Tracing where water is getting into your roof across St John's Wood, with drones and thermal imaging where they help. Get in touch for a price.
- Damp ceilings under a flat roof
- Staining where a gutter or parapet meets the wall
- Leaks that appear only in driving rain
Roof leak investigation in St John's Wood: what you get
We investigate roof leaks in St John's Wood and across London and the South East. We visit on weekdays and at weekends. The investigation covers inside and out, from the stain to the likely entry points. 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, then ring 07833 053749 or email us. If you’ve noticed water marks that spread in wet weather and damp patches next to the stack, we can find out what’s behind it, on flat roof details, lead flashings and chimney stacks alike.
In a London flat, water can travel some way before it shows, sometimes in a different flat from the one below the defect. Tracing it back matters, both for dealing with the cause and for any insurance claim. We check what we are given access to in St John's Wood, inside and out. It’s useful to know when the water appears and in what weather.
The Standard Survey adds moisture detection, a structural check and a follow-up consultation. The Premium Survey adds thermal imaging, drone inspection where it applies, structural analysis and an in-person consultation.
- Place
- St John's Wood (NW8, NW6, NW3)
- Region
- Greater London
- Prices
- From £150 inc. VAT
- Reports
- A written report with photos, by email
- Survey days
- Weekdays, Saturdays and Sundays
- Cover
- Professional indemnity and public liability
- Telephone
- 07833 053749
- Page updated
- 27 October 2026
Prices for roof leak investigations in St John's Wood
Prices vary from roof to roof, and it comes down to:
- Basic, Standard or Premium
- Whether thermal imaging or a drone is needed
- House, block, shop or office
- Chimneys, valleys, parapets and other details
Price depends partly on the package: Basic from £150, Standard from £250 or Premium from £400, all including VAT. The roof’s size, height and access matter as well.
What we need to know
What helps most when you contact us:
- Whether there’s a loft hatch, a shared roof or tricky access
- The property’s address and postcode
- Any deadline, like an exchange date
- What kind of property and roof it is
Getting a price is simple: just call 07833 053749 or drop us an email, let us know about the property and we will explain which survey suits. The price is agreed up front.
Roof leak investigations around St John's Wood
Historic houses such as Winfield House, about 0.6 miles south-east, show how far back building in the area around St John's Wood goes. Period homes nearby can have lead valleys, tall chimneys and a patchwork of past repairs, and the council can say whether a home is in a conservation area. 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 can’t be seen from the pavement. If your home in St John's Wood is one of them, lead flashings, party-wall upstands and shared chimney stacks are part of the picture too. Each of these roof types has its own typical places for water to get in.
If you live in an older home near Church of All Souls, leaks on older roofs frequently start at lead flashings, valleys or around old chimney stacks. Living close to Primrose Hill is pleasant, but mature trees mean leaves in gutters and valleys each autumn, and an overflowing gutter soon means a wet wall. Landlords with a home close to South Hampstead station may find that a tenant living with a leak needs the cause found, not just the stain painted over.
St John's Wood is about 1 mile south of Hampstead, in Greater London. We cover St John's Wood and the rest of Greater London, as part of our work across London and the South East. St John's Wood is one of the towns and villages in Greater London where we work for roof leak investigations.
Every address in NW8, NW6 and NW3 is covered for roof leak investigations. Streets in the area include The Lane, Hall Road and Hill Road, all of which we cover. St John's Wood sits on or near the A5205. Close by, we survey roofs in South Hampstead (1 mile north), Swiss Cottage (1 mile north), Primrose Hill (1 mile north-east), Lisson Grove (1 mile south) and Haverstock (1 mile north-east). Within a short drive, we also cover London (4 miles south-east), Kensington (3 miles south-west), St Pancras (3 miles east), Shoreditch (4 miles east), Walthamstow (7 miles north-east) and Hoxton (4 miles east).
What’s near St John's Wood
In St John's Wood, that means homes and buildings near Cecil Sharp House, Primrose Hill and Arnold House School and the streets around them. Also close by are Quintin Kynaston Community Academy (within half a mile north-west) and Cafe Med pub (less than half a mile north-west). There is a railway station in St John's Wood itself: South Hampstead station. Nearby you will also find Hospital of St John and St Elizabeth (less than half a mile south) and Montfichet's Tower (3.5 miles south-east). Not far away are The Long Water and Primrose Hill.
Towns and villages near St John's Wood
Also in St John's Wood
Tips from our surveys
A few practical points come up again and again on our surveys. They apply to most roofs:
- Let us know what has already been tried
- Don’t climb onto the roof to look
- Mention any plumbing above the damp area
- Move stored items away from the hatch
With the Standard Survey you get a follow-up consultation, while Premium includes one in person. You can ask us about anything that isn’t clear.
Keep gutters, valleys and outlets clear, particularly in autumn. Many leaks start with a blocked outlet. Leave the clearing to someone with the right equipment.
FAQs for St John's Wood
How do I find out if my home in St John's Wood is listed?
Historic England’s list shows listed buildings, and the local council can tell you about conservation areas. Listed building consent is needed for changes that affect a listed building’s special interest, and conservation areas can limit changes of roofing material.
Can parking be tricky for a visit in St John's Wood?
It can be, so it’s useful to let us know about permits, visitor bays or off-street space when you book. That way the visit can be planned around it.
How do I arrange a roof leak investigation in St John's Wood?
To book, ring 07833 053749 or send us an email and let us know the address and what you want to find out. We will confirm the price and agree a day with you.
Is the repair included in the leak investigation?
The investigation is about finding the cause. The repair is not part of it. You get a report with photos showing where the water is getting in and what needs attention.
Is it the same as a RICS Level 2 or Level 3 survey?
No. It is a specialist roof survey, not a RICS Level 2 or Level 3 building survey. It focuses on the roof and can sit alongside a RICS survey.
Why is the stain in a different place from the leak?
Water follows the easiest path, not the shortest. On a pitched roof it often runs down a rafter before it finds a way through the ceiling. Tracing that path is the heart of a leak investigation.
What insurance do you have?
We’re covered by professional indemnity and public liability insurance, for every survey we carry out.
What this survey cannot tell you
In fairness, there are limits to any roof survey:
- Carrying out the fix
- Plumbing leaks that look like roof leaks
- Leaks that only appear in weather we can’t recreate
If you’re not sure which survey you need, ring 07833 053749 or use the contact form and we will give you a straight answer before you book. What our survey covers.
Roof types and parts we check
- Slate and tile slopes
- Chimney stacks
- Flat roof details
- Valleys and parapet gutters
- The roof space
- Lead flashings
- Rooflights and dormers
What happens on the day
Where it’s relevant and can be reached safely, the roof space is checked as well as the outside. In the loft, the signs we look for are staining, damp, daylight and sagging. The whole visit usually takes roughly 1–2 hours for most homes, though a hard-to-trace leak can take longer. London terraces rarely offer a view of the whole roof from one spot, so in St John's Wood we work round the house, using the street, the windows, the loft and any safe vantage point behind it. If other people live in the building, let us know who can let us into the shared parts.
- You let us know where the water shows and when it appears.
- Inside, we check the damp area and the roof space above it.
- We check the likely entry points outside, such as flashings, valleys, chimneys and gutters.
- Where it helps, we take moisture readings and use thermal imaging.
- Your report sets out where the water is most likely getting in, with photos and recommendations.
Preparing for the visit
- Keep pets in another room
- Make sure the loft hatch can be reached
- Jot down any questions you want answered
Arrange a survey
For a price for roof leak investigations in St John's Wood, call 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.
Read more
Why it’s worth a survey now in St John's Wood
Water damage grows the longer it’s left. Wet timbers start to decay, plaster softens and insulation stops working. Tracing it now means less to put right later. In St John's Wood, as in much of London, water from a roof defect can reach a neighbour’s home as easily as yours: a blocked parapet gutter or slipped slate can let water into the flat below or the house next door. Dealing with it early is far less disruptive.
For a price for your roof in St John's Wood, call 07833 053749 or send us an email with the address and some details. We’ll confirm the figure before booking.
Why book us in St John's Wood
- 20+ years’ experience
- Drone flown under a CAA Flyer ID and Operator ID
- Thermal imaging and drones used where they help
- 5,000+ roofs surveyed
Read what a roof survey costs or what we found on two real jobs.
What we look for on each type of roof
Slate and tile slopes
‘Nail fatigue’ is a common cause of slipped slates. One slipped slate can be enough to cause a leak.
Parapet and box gutters
We check the linings, joints and outlets where we can see them safely.