Greater London · London and the South East
Roof leak investigation in Kensal Green, Greater London
Not sure what state the leaking roof is in? You can book a roof leak investigation in Kensal Green and across Greater London, with plain-English findings.
- Condensation that looks like a leak
- Damp walls below an overflowing gutter
- Water that shows only in certain storms
Roof leak investigation in Kensal Green
A leak that comes and goes can be the hardest to pin down. Wind-driven rain, an overflowing gutter or snow melt may be what triggers it. Notes on when it leaks, and what the weather was doing, help us and so do photos. Even on a dry day, a leak typically leaves clues: stained timbers, tide marks and damp underlay. Moisture detection shows which materials are still damp. We survey chimney stacks, flat roof details and the roof space, and common reasons people get in touch are damp ceilings under a flat roof and water dripping from rafters or underlay.
In a London flat, water can travel some way before it shows. Tracing it back matters, both for dealing with the cause and for any insurance claim. In Kensal Green, we inspect what we can reach safely and are given access to. It helps to know when the water appears and in what weather.
It isn’t only a list of defects. For each finding, it explains what it is, why it matters and what we’d recommend, so you can decide what to do next.
- Location
- Kensal Green (NW10, W10, NW6)
- Wider area
- Greater London
- Cost
- From £150 inc. VAT
- Report
- A written report with photos, by email
- When we survey
- Weekdays and weekends
- Insured
- Professional indemnity and public liability
- Telephone
- 07833 053749
- Last updated
- 27 October 2026
Roof by roof
Chimney stacks
Water that gets in at the top can show up lower down. Unused flues with open pots can let rain straight in.
Lead flashings
Some roofs have mortar where you’d expect lead. They crack as the roof and wall move, and water runs down behind them.
Surveys for landlords and agents in Kensal Green
A roof problem in a let property affects your tenants as well as the building. A survey helps you spot issues early and plan the work around your tenants.
We also survey roofs for businesses and commercial landlords. Larger roofs take longer.
Prices for roof leak investigations in Kensal Green
All our prices include VAT. The things that change the price are:
- The type of building, from a house to a block or an office
- The roof’s overall size
- Extra roofs, like extensions, dormers or garages
- How tall the building is and how easy the roof is to see
What a survey costs comes down to the roof itself: its size, its height, how many sections it has and how it can be reached and seen safely. Roof leak investigation starts from £150, including VAT.
What to let us know when you contact us
To price your survey accurately, we will ask about:
- How the loft is reached, if there is one
- Where the property is, with the postcode
- What made you get in touch
- Pictures of the roof from a safe spot, if you have them
To book a survey, call 07833 053749 or send us an email with the address and what you’d like to know about the roof. We will confirm the price before booking.
Your questions about roof leak investigations in Kensal Green
Does a conservation area affect roof work in Kensal Green?
Your council is the best source, with Historic England’s list for listed buildings. Both listing and conservation areas can limit changes of roofing material.
Is parking a problem for a survey in Kensal Green?
London parking needs a little planning, so let us know about permits, bays or a driveway when booking. That way the visit can be planned around it.
Will you walk on the roof?
Not always. Safety comes first, and fragile or steep roofs can’t always be walked on. Safe viewpoints, the loft and a drone where it applies let us see the rest.
What should I do before you arrive?
Check the loft can be reached. Have any photos of the leak ready, plus details of past repairs. In the meantime, catch the water and keep it clear of lights and sockets.
Are you structural engineers?
No. Our survey is not a structural engineer’s report, and it doesn’t include calculations. If we see signs that need an engineer’s opinion, we’ll recommend one.
How do you tell a leak from condensation?
It’s a common question. A leak usually shows in one area and follows rain, while condensation is often widespread and worst on cold days. The report explains which it looks like and what to do.
Does this replace a RICS home survey?
No. This is a survey of the roof only, and it isn’t a RICS Level 2 or Level 3 survey. It can sit alongside a RICS survey if you want both.
Before and after the survey
These tips come from what we see on roofs every week:
- Mention any plumbing above the damp area
- Put a bucket under the drip and move valuables
- Leave roof access to professionals
- Clear the loft hatch so we can get in
Where we find more than one possible route, we say which is most likely and why. We say which items need prompt attention, so you know what to deal with first.
Look at the roof from ground level after strong winds. Slipped slates, lifted ridge tiles and debris on the ground are signs to act on. Prompt repairs stop gaps turning into leaks.
The survey, step by step
Once we’ve finished looking, we write up our findings as a report with photographs. On timing, it usually takes an hour or two for most homes, though a hard-to-trace leak can take longer. In Kensal Green, visits are available on weekdays and at weekends. It helps if you can point us to a visitor permit or a nearby bay. A back bedroom window can be the best vantage point for a rear addition, so we may ask to use one.
- You pick a Basic, Standard or Premium Survey.
- A visit is booked for a weekday, Saturday or Sunday.
- The investigation works from the stain back to the roof.
- Where it’s useful and included, we take moisture readings and use thermal imaging.
- The report explains the likely entry point and what needs attention.
Before we arrive
- Gather any invoices or paperwork from past roof work
- Tell us about parking before the day
- Jot down any questions you want answered
Arrange a survey
For a price for roof leak investigations in Kensal Green, phone 07833 053749 or drop us an email. Some details about the property and the roof help us give you an accurate price.
Related advice
Roof leak investigations in Kensal Green: local notes
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. Shared chimney stacks, party-wall upstands and lead work come with this kind of house. Where water gets in depends a good deal on what the roof is made of and how it’s detailed. With Kensington Palace about 2.4 miles south-east, Kensal Green sits in an area with a long building history. Older roofs in the wider area can hide decades of patch repairs, so the detail matters.
Homes near green spaces like Little Wormwood Scrubs can get more leaves in their gutters in autumn, and blocked gutters overflow and soak walls. If you look after a building such as Princess Frederica CofE Primary School, a leak through a large roof is frequently found some distance from where the water shows inside. For businesses in and around places such as Westfield London, water through a ceiling can damage stock and close a sales floor, so the source needs finding fast.
Kensal Green is about 1 mile south-west of Kilburn, in Greater London. We provide roof leak investigations for householders, landlords and businesses in Kensal Green and nearby. We cover towns and villages across Greater London. Our London page covers surveys nearby.
We survey roofs across NW10, W10 and NW6 for roof leak investigations and the streets around it. Whether your property is on Waldo Road, Hazel Road and Hiley Road or anywhere close by, we can help. Close by, we survey roofs in Kensal Rise (1 mile east), College Park (1 mile west), North Kensington (1 mile south-east), Willesden Green (1 mile north) and Kensal Town (1 mile south-east). Larger places within reach include London (6 miles east), City of Westminster (3 miles east), Marylebone (3 miles east), St Pancras (5 miles east), Shoreditch (6 miles east) and Walthamstow (9 miles north-east).
Around Kensal Green
Around Kensal Green, our work takes us to homes and buildings near Little Wormwood Scrubs, Queens Park Community School and The Masons Arms, among other places. There is a railway station in Kensal Green itself: Kensal Green station. A little further out are Westfield London (1.6 miles south) and Princess Louise Hospital (0.7 miles south). Not far away are Greville Place nature reserve and The Long Water.
Towns and villages near Kensal Green
Other services in Kensal Green
What you can safely check yourself
You can learn a lot from ground level. Binoculars help you spot slipped slates or tiles, gaps along the ridge and a leaning stack. Please don’t climb up for a closer look.
During heavy rain, look at the gutters from the ground or a window. Overflowing water can be a sign of a blockage or a gutter that has dropped.