Greater London · London and the South East
Roof leak investigation in South Kensington, Greater London
Not sure what state the leaking roof is in? We carry out roof leak investigations in South Kensington and across Greater London.
- Wet patches high on an inside wall
- Leaks below a flat extension roof
- Drips in the loft during heavy rain
Roof leak investigations for homes and businesses in South Kensington
On older houses, leaks frequently start at lead work and hidden gutters. Lead flashings crack or lift, valley linings wear and parapet gutters overflow when outlets block. If your home has a butterfly roof, the central valley gutter is a common culprit. Parapet walls and their gutters are checked from wherever it’s safe. The findings are recorded with photos. We survey lead flashings, the roof space and slate and tile slopes, and common reasons people get in touch are brown rings on upstairs ceilings and water dripping from rafters or underlay.
In London, leaks frequently start somewhere hidden: a butterfly roof’s central valley gutter, a parapet gutter, a chimney flashing or a flat roof over a back addition. For a leak or storm damage in South Kensington, those hidden details are where the inspection begins. Water from a hidden gutter can run along joists and show up a room or two away.
If any part of the leaking roof couldn’t be seen safely, we say so in the report. You’ll know exactly what was inspected and what wasn’t.
- Location
- South Kensington (SW3, SW7, SW10)
- Region
- Greater London
- Cost
- From £150 inc. VAT
- Report
- Written, with photos, emailed to you
- When we survey
- Weekdays, Saturdays and Sundays
- Insurance
- Professional indemnity and public liability
- Call
- 07833 053749
- Last updated
- 27 October 2026
Different roofs, different checks
Valleys
Valleys collect water from two roof slopes. Split lead, cracked linings or slipped tiles let water in.
Flat roof upstands and outlets
Outlets drain a flat roof. When one blocks, water ponds and finds any weak spot. We check outlets and the covering around them.
For landlords and managing agents
Landlords, agents and building managers in South Kensington and across Greater London can book any of our surveys. For a price for a let property or a block, call 07833 053749 or email us.
An agent can book and manage the survey for a landlord, with the report sent to whoever needs it. We agree a time with the tenant beforehand.
Signs you need a roof leak investigation in South Kensington
Many leaks begin at a flashing. Where a roof meets a chimney, a wall or a dormer, lead or mortar seals the joint. Once that seal cracks or lifts, water gets behind it.
A survey makes sense if you’ve noticed:
- Damp patches next to the stack
- Leaks below a flat extension roof
- Damp underlay across a wide area
- Wet patches on loft insulation
Landlords with a home close to West Brompton station may find that a tenant living with a leak needs the cause found, not just the stain painted over.
Choosing a roof surveyor
- Whether the loft is part of the inspection
- What follow-up you get after the report
- Whether they hold professional indemnity and public liability insurance
- What the survey won’t cover
Places near South Kensington
Other services in South Kensington
How the survey works
Every roof is different, but as a rough guide the survey takes about 1–2 hours at most homes; commercial roofs usually need 3–4 hours. If you have questions on the day, just ask. From the street, a London terrace typically shows only its front slope or parapet, so a visit in South Kensington moves between viewpoints: the pavement, upstairs windows, the loft and any safe spot at the back. If other people live in the building, let us know who can let us into the shared parts.
- 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, such as flashings, valleys, chimneys and gutters.
- Moisture readings and thermal imaging are used where they help.
- We email a report with photos, the likely entry point and recommendations.
Before the survey
- Let us know about parking near the property
- Clear the way to the loft hatch
- If it is not your property yet, arrange access through the agent
How to book
Our phone lines are open seven days a week, including Saturdays and Sundays. To book or ask a question, call 07833 053749 or drop us an email.
Read more
What this survey cannot tell you
No survey can tell you everything, and it’s better to know them up front. Bear these in mind:
- An intermittent leak that shows no trace on the day
- Faults hidden behind ceilings or boarding
- Leaks from plumbing, tanks or pipework rather than the roof
If in doubt, ring 07833 053749 or email us and we will point you to the right survey. What our survey covers.
Roofs we survey in South Kensington
- Lead flashings
- Slate and tile slopes
- Chimney stacks
- Valleys and parapet gutters
- Rooflights and dormers
- Flat roof details
- The roof space
Practical tips
A few practical points come up again and again on our surveys. They’re worth knowing whatever the roof:
- Let us know if there are tanks or pipes in the loft
- Protect furniture and flooring under the leak
- Note the weather when the leak shows
- Leave roof access to professionals
Once the work is done, hold on to the report. If the leak returns, it is a useful record of what was found, which makes the next step quicker.
Look at the roof from the ground 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.
Questions from South Kensington
Will parking be an issue for a roof survey in South Kensington?
In much of London, parking needs planning: a visitor permit or a nearby bay makes the day run more smoothly, so mention what’s available when you book.
Does a conservation area affect roof work in South Kensington?
Start with Historic England’s list for listing and your council for conservation areas. Either can affect what roof work is allowed, so it’s worth checking before planning any.
What do I do with the report?
The report arrives by email, with photos and clear recommendations. With Standard there is a follow-up consultation; with Premium, an in-person consultation, so you can talk the findings through.
Can a leak be traced on a dry day?
In many cases, yes. Stains, tide marks, damp timbers and moisture readings typically point the way. Some leaks only show in particular weather, so your photos and notes from wet days are very useful.
Why is not the leak directly above the stain?
Water follows the easiest path, not the shortest. On a flat roof it can travel under the covering before it finds a way through the ceiling. Following that route is what our investigation does.
Is this an asbestos survey?
No. We do not carry out asbestos surveys or testing. We flag materials that could contain asbestos, such as cement sheets or soffits on pre-2000 buildings.
What insurance do you have?
Every survey is covered by professional indemnity and public liability insurance, and we can provide details if a managing agent needs them.
Roof leak investigations in South Kensington: local notes
Carlyle's House, about 0.6 miles south-east, is one of the historic houses in the wider area around South Kensington. 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. Close to the centre of London, a great many houses are Victorian or Edwardian terraces, many of them roofed in Welsh slate. From the street you may see only a parapet, with a butterfly roof and a valley gutter behind it draining to the back. In a house like that, shared stacks, party-wall upstands and lead flashings all need looking at as far as they can be seen. Where water gets in depends a good deal on what the roof is made of and how it is detailed.
For an older house near a landmark like Chapel of St Luke, the leak may come from a chimney, a valley or tired lead rather than the covering itself. If you look after a shop, office or commercial unit, for example near Harrods, water through a ceiling can damage stock and close a sales floor, so the source needs finding fast.
South Kensington is about 1 mile south-east of Kensington, in Greater London. We visit South Kensington as part of our work across Greater London. We cover towns and villages across Greater London, large and small.
Every address in SW3, SW7 and SW10 is covered for roof leak investigations, from the main roads to the quietest streets. If you need a roof leak investigation at a property on King's Road, Fulham Road and Museum Lane or a nearby road, we can help. Main roads around South Kensington include the A3217. Nearby, we also carry out roof leak investigations in Little Chelsea (1 mile south), Chelsea (1 mile east), Brompton (1 mile north-east), World's End (1 mile south) and Earl's Court (1 mile west). We also work in nearby towns like London (4 miles east), St Pancras (4 miles north-east), Shoreditch (5 miles north-east), Walthamstow (9 miles north-east), Hoxton (5 miles north-east) and Whitechapel (5 miles east).
Local landmarks in South Kensington
In South Kensington, that means homes and buildings near London School of Dramatic Art, Burton’s Court and Anglesea Arms. Other local landmarks include Natural History Museum Library and Archives (within half a mile north) and Collingham College (0.5 miles west). The closest station to South Kensington is West Brompton station, roughly 0.8 miles west of the centre. A little further out are Victoria and Albert Museum Spiral (within half a mile north) and Baynard's Castle (3.6 miles north-east). Not far away are Serpentine and Campden Hill.