Greater London · London and the South East
Belgravia Roof Leak Investigation
We take a careful look at the leaking roof at your property in Belgravia, and put it all in a written report with photos.
- Leaks below a flat extension roof
- Water coming in around a roof light or dormer
- Ceiling stains that grow after rain
Roof leak investigations around Belgravia
Welsh slate on Victorian and Edwardian terraces is a familiar sight across inner London. A butterfly roof with a central valley gutter, tucked behind a parapet wall, is common on these houses. If your home in Belgravia 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. Apsley House, about 0.4 miles north, is one of the historic houses in the wider area around Belgravia. If yours is one of the older homes, expect a mix of original materials and later repairs on the roof, and any change of roofing material on a listed home needs checking with the council first.
For site and facilities teams at buildings like Holy Trinity CofE Primary School, on a building that size, finding the source of a drip means looking well beyond the stain. If you let a flat or house near London Victoria station, a tenant living with a leak needs the cause found, not just the stain painted over.
Belgravia is about 1 mile south of City of Westminster, in Greater London. From houses to flats and shops in Belgravia, we can survey the roof. Across Greater London, we cover Belgravia.
Every address in SW3, SW1X and SW1W is within our area for roof leak investigations. We offer roof leak investigations to properties on Hans Road, Eaton Lane and Gerald Road and the roads around them. Belgravia sits on or near the A3214 and A3217, so getting to you is simple. If you are just outside Belgravia, we cover Brompton (1 mile south-west), Victoria (1 mile south-east), Chelsea (1 mile south-west), Pimlico (1 mile south-east) and Westminster (1 mile east). We also work in nearby towns such as London (3 miles east), St Pancras (3 miles north-east), Shoreditch (4 miles north-east), Walthamstow (8 miles north-east), Hoxton (4 miles north-east) and Whitechapel (4 miles east).
What’s near Belgravia
In Belgravia, that means homes and buildings near Saint Thomas More Language College, Green Park and Natural History Museum Library and Archives and the streets around them. Also close by are Star Tavern (under half a mile north-west) and Inchbald School of Design (less than half a mile south). The nearest railway station is London Victoria station, roughly 0.5 miles south-east. Other landmarks nearby include Health Exhibition Centre (under half a mile south-east) and Harrods (less than half a mile west). Not far away are Campden Hill and Serpentine.
Roof leak investigation in Belgravia
Our roof leak investigations cover Belgravia and the wider South East. Surveys are carried out on weekdays and at weekends. The investigation covers inside and out, from the stain to the likely entry points. You get a written report with photographs and recommendations. If water is coming in now, catch it in a bucket and keep it away from lights and sockets, and then ring 07833 053749 or use the contact form. If you’ve noticed water coming in around a roof light or dormer and leaks below a flat extension roof, a survey will tell you what’s going on, on chimney stacks, flat roof details and valleys and parapet gutters 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 Belgravia, inside and out. It helps to know when the water appears and in what weather.
Report times depend on the survey you book: the Basic Survey within 48 hours, the Standard Survey in 24 to 48 hours and the Premium Survey on the same day.
- Where
- Belgravia (SW3, SW1X, SW1W)
- Region
- Greater London
- Prices
- From £150 inc. VAT
- Reports
- A written report with photos, by email
- When we survey
- Weekdays, Saturdays and Sundays
- Insured
- Professional indemnity and public liability
- Call
- 07833 053749
- Last updated
- 27 October 2026
Also near Belgravia
Other services in Belgravia
Your questions about roof leak investigations in Belgravia
Do you carry out roof surveys in Belgravia?
Yes, Belgravia is within the area we cover. We cover the whole of London and South East England. You can call 07833 053749 or drop us an email with the address and a few details.
Is parking a problem for a survey in Belgravia?
It can be, so it helps to tell us about permits, visitor bays or off-street space when you book. That way the visit can be planned around it.
Are you structural engineers?
No. We’re roof surveyors, not structural engineers, and it doesn’t include calculations. If we see signs that need an engineer’s opinion, we’ll recommend one.
Do you need to get into the loft?
Where it is relevant to the survey and there is safe access, yes. A clear path to the hatch helps, and if the loft can’t be reached safely, the report says so.
Can you always find the source?
Not always, and we will be honest about that. Some leaks hide well, especially those that need wind-driven rain. If we can’t be sure, the report ranks the possible sources.
Does this replace a RICS home survey?
No. Our survey is a roof survey, not a RICS Level 2 or Level 3 survey of the whole building. It focuses on the roof and can sit alongside a RICS survey.
How long does a roof leak investigation take?
The visit usually takes roughly 1–2 hours at most homes, and longer for a large or complex roof. We’ll give you an idea of timing when you book.
Do you need a roof leak investigation in Belgravia?
Blocked gutters can look like a roof leak. Parapet and box gutters are the worst for this, since a blocked outlet sends water over the lining and into the building.
A survey makes sense if you’ve noticed:
- Brown rings on upstairs ceilings
- A leak that comes and goes with the weather
- Drips in the loft during heavy rain
- Wet patches high on an inside wall
For an older house near a landmark like St Peter's Church, lead flashings, valleys and old chimneys are typical places for water to get in.
Before you book any roof surveyor
- Whether you can ask questions once you have the report
- What exactly goes into their report
- Whether the roof space is looked at, where there is one
- Whether VAT is in the quoted price
What we do, step by step
Before we start, tell us why you’ve booked: buying, a leak, storm damage, new work or just wanting to know where things stand. That way we can focus on what matters to you. The visit usually takes about one to two hours on an ordinary house, or half a day or so for a commercial building. In a London area like Belgravia, the main things to sort out are parking and access: let us know about parking, the floor the property is on, any shared entrance and loft access. We then look at whatever is safely visible from ground level, windows, the loft and, where it’s safe, the roof itself.
- You tell us where the water appears, when, and what the weather was doing.
- We examine the damp area and the rooms near it.
- From the roof space, we trace the water’s route where there’s safe access.
- We inspect the likely entry points outside, from the ground, windows and the roof where safe.
- We email a written report showing where the water most likely gets in.
How to prepare
- Tell us about any leaks, stains or damp patches you know of
- Leave a clear route to the loft
- Dig out any old roof reports or invoices
Booking a survey
You can call us seven days a week. To book or ask a question, ring 07833 053749 or drop us an email.
Read more
Different roofs, different checks
Lead flashings
Water from a failed flashing can travel down the wall or along a rafter. That’s why we check the flashings near a stain, not just the one directly above.
Slate and tile slopes
On slate roofs, corroded nails let slates slip. One slipped slate can be enough to cause a leak, especially in driving rain.
What happens if roof problems are left?
Damp in a ceiling or loft can lead to mould. It’s unpleasant, and it’s harder to deal with once established. Stopping the water is the first step. A hidden valley or parapet gutter on a London house can hold water for weeks before anyone notices. When the stain finally shows, the damage underneath is often older than it looks.
Roof leak investigation starts from £150, including VAT. Packages run from Basic at £150 through Standard at £250 to Premium at £400, with VAT included, and we will tell you which fits.
Why book with us
- Package prices that include VAT
- Customer satisfaction of 98%
- Over 5,000 surveys carried out
- A report with photos
Take a look at what a roof survey costs and our case studies.
Useful tips for Belgravia property owners
There is plenty you can do without going near the roof. What helps most:
- Stay off ladders and the roof
- Protect furniture and flooring under the leak
- Check whether pipes or tanks run near the stain
- Clear the loft hatch so we can get in
If condensation is the cause, we explain it, with recommendations on ventilation. That avoids roof work that wouldn’t help.
Do not block the vents at the eaves. Air movement keeps condensation down, which is often mistaken for a leak. Keep insulation clear of the eaves.
What affects the cost of roof leak investigations
Every roof is different, so prices are confirmed before you book. These are the things that affect it:
- How complicated the roof is, with its valleys, chimneys and parapets
- House, block, shop or office
- The use of thermal imaging or a drone
- Height and safe access
The cost of a survey depends on the roof: how big it is, how high it is, the number of separate roofs and how it can be reached and seen safely. Our price is from £150, including VAT.
What to tell us when you get in touch
You don’t need to know any roofing terms. Just let us know:
- What kind of property and roof it is
- What made you get in touch
- Pictures from the garden or a window, if you have them
- Dates you’re working to, like exchange
Surveys can be booked for weekdays, Saturdays or Sundays. To arrange a day that suits you, phone 07833 053749 or send us an email with the address and the days you’d prefer.