Greater London · London and the South East
Roof leak investigation in South Norwood, Greater London
Roof leak investigations across South Norwood, with over 20 years’ experience behind it. You get a clear report with photos.
- Wet patches high on an inside wall
- Wet patches on loft insulation
- Damp underlay across a wide area
South Norwood: your questions answered
Is my home in South Norwood listed or in a conservation area?
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.
Do you carry out roof surveys in South Norwood?
We do. Every survey there gets the same written report with photos, and visits run on weekdays and weekends.
Is thermal imaging part of a leak investigation?
It can, when the conditions are right. The best results come after a sunny day, on a dry roof with little wind. Damp areas can hold heat differently from dry ones. We always check what it shows with moisture readings.
How long does a roof leak investigation take?
It normally takes about one to two hours at a typical home; commercial roofs usually need 3–4 hours. Report times depend on the package.
Do you climb onto every roof?
Only where it is safe to do so. We look at everything that can safely be seen: from ground level, from windows and vantage points, from the loft space, from the roof itself where safe and by drone where applicable. Anything we cannot see is noted in the report.
Is this an asbestos survey?
No. Asbestos surveys and testing are not part of what we do. We flag materials that could contain asbestos, such as cement sheets or soffits on pre-2000 buildings, and recommend a specialist asbestos surveyor checks them before they’re disturbed.
How do you tell a leak from condensation?
The two can look alike. Widespread damp on the underside of the roof in cold weather, with blocked vents, suggests condensation. We check the pattern, take moisture readings and tell you which is more likely.
How a roof leak investigation works in South Norwood
We use moisture detection and thermal imaging where they help. Moisture readings show which materials are wet. A thermal camera shows patterns of temperature rather than water, so its findings are checked with moisture readings. Moisture detection is included in the Standard Survey, and thermal imaging in Premium. The best thermal results come after a sunny day, with a dry roof and little wind. We survey flat roof details, valleys and parapet gutters and slate and tile slopes, and common reasons people get in touch are water dripping from rafters or underlay and condensation that looks like a leak.
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 South Norwood, those are among the first places to look. A hidden gutter that overflows can send water a long way before it shows.
You receive the findings by email, ready to forward to whoever needs them. Turnaround is within 48 hours for Basic, 24–48 hours for Standard and same day for Premium.
- Location
- South Norwood (SE25, SE20, CR0)
- Region
- Greater London
- Prices
- From £150 inc. VAT
- Reports
- Emailed report with photos and recommendations
- When we survey
- Weekdays, Saturdays and Sundays
- Insurance
- PI and public liability insurance
- Call
- 07833 053749
- Page updated
- 27 October 2026
What happens on the day
We work from the outside in: outside views come first, then the loft space if there is safe access. All told, expect an hour or two for most houses, though large, tall or awkward roofs take more time. London terraces rarely offer a view of the whole roof from one spot, so a visit in South Norwood moves between viewpoints: the pavement, upstairs windows, the loft and any safe spot at the back. Shared stairs or a basement flat? Let us know who holds the keys.
- 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.
- Moisture detection and thermal imaging are used where your package includes them and they help.
- The report explains the likely entry point and what needs attention.
Getting ready for the survey
- Have any paperwork from past roof work to hand
- For a flat or shared roof, check access with the building owner or managing agent
- If it isn’t your property yet, arrange access through the agent
Book a survey
Roof leak investigation starts from £150, including VAT. What you pay depends on the roof’s size, access and the package, so ring 07833 053749 or use the contact form with the details.
Related advice
What we are asked to look at in South Norwood
Flashings are one of the commonest sources of roof leaks. 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, frequently well away from where it shows.
Here are some of the things we see frequently:
- Damp walls below an overflowing gutter
- Damp on a chimney breast
- A leak that comes and goes with the weather
- Brown rings on upstairs ceilings
The streets around a church such as Church of St Mark are often among the oldest in a place, and if yours is one of the older homes nearby, lead flashings, valleys and old chimneys are typical places for water to get in.
Choosing a roof surveyor
- Is there a chance to talk the report through?
- What insurance they carry
- Whether the roof space is looked at, where there is one
- Which parts of the roof they’ll actually see
What a roof leak investigation looks like in South Norwood
Further from the centre, London’s housing takes in interwar semis with hipped roofs in clay or concrete tiles as well as slate-roofed terraces. If your home in South Norwood is one of them, bay roofs, hips and later dormers each have their own details. Knowing the roof type helps narrow down where water may be getting in. Kingswood House, about 2.2 miles north, is one of the historic houses in the wider area around South Norwood. Older homes in the wider area frequently have features worth a closer look, such as lead valleys, tall stacks and roofs that have been patched over the years, and a listed home or one in a conservation area may need consent for changes of material.
If you run a business near Whitgift Centre, a leak can close part of a shop or office, so finding the cause quickly matters. If you own a rental within reach of Norwood Junction station, a tenant living with a leak needs the cause found, not just the stain painted over.
South Norwood is about 5 miles south-east of Stockwell, in Greater London. Bookings from South Norwood are handled just like any other: a call or an email, a price, then a date. Our area takes in places right across Greater London, from the larger towns to small villages. You can also see our page for London.
Here we cover the SE25, SE20 and CR0 postcode area for roof leak investigations. Whether your property is on Park Road, Court Road and Dixon Road or anywhere close by, we can help. You will find South Norwood on the A213, which makes it simple to reach. Nearby, we also carry out roof leak investigations in Selhurst (1 mile north), Woodside (1 mile south), Ashburton (1 mile south), Elmers End (1 mile east) and Addiscombe (1 mile south). Larger places within reach include London (7 miles north), City of Westminster (9 miles north-west), Marylebone (9 miles north), Kensington (9 miles north-west), St Pancras (9 miles north) and Shoreditch (9 miles north).
Around South Norwood
We work in homes and buildings around The Albion pub, South Norwood Recreation Ground and Harris Academy South Norwood. There’s a railway station in South Norwood itself: Norwood Junction station. A little further out are Croydon University Hospital (1.7 miles south-west) and Crystal Palace Museum (1.4 miles north). Open spaces near South Norwood include Dulwich Upper Wood and Duppas Hill.
What a roof leak investigation does not cover
It is a careful look at the leaking roof, not the whole story. Its limits include:
- The repair itself (the investigation finds and reports the cause)
- Faults hidden behind ceilings or boarding
- Plumbing leaks that look like roof leaks
Not sure which survey suits your roof? You can call 07833 053749 or use the contact form and we’ll tell you before you book. What our survey covers.
What this survey covers
- Rooflights and dormers
- The roof space
- Flat roof details
- Lead flashings
- Valleys and parapet gutters
- Slate and tile slopes
- Chimney stacks
Roof by roof
Chimney stacks
A stack has several possible ways in for rain. We check each one as far as we can safely see, and look for damp on the breast inside.
Flat roof upstands and outlets
Each flat roof relies on its outlets to drain. When one blocks, water ponds and finds any weak spot. Outlets and the area around them are checked.
What a survey costs
Not every roof costs the same to survey, for these reasons:
- How complicated the roof is, with its valleys, chimneys and parapets
- Basic, Standard or Premium
- How many separate roofs there are, like extensions, dormers and garages
- Any need for thermal images or a drone flight
Every price we give includes VAT. Prices start from £150, including VAT. You’ll know the price for your roof before booking.
Getting in touch
What helps most when you contact us:
- How the loft is reached, if there is one
- Any stains, drips or damp patches you’ve seen indoors
- Pictures from the garden or a window, if you have them
- Why you want a survey: buying, a leak, a storm or new work
If you have photos of the roof, send them over. Pictures from ground level or a window are fine; never climb up to get a better view. To get started, phone 07833 053749 or drop us an email.
Why get it checked now?
Water damage grows the longer it is left. Wet timbers start to decay, plaster softens and insulation stops working. Tracing it now means less to put right later. Behind a London parapet, a blocked gutter can sit full of water without anyone seeing it. By the time a ceiling stains, the timbers underneath may have been wet for a while.
For a price for your roof in South Norwood, ring 07833 053749 or send us an email and let us know about the roof. The price is agreed before a date is set.
What you get with us
- 5,000+ surveys completed
- Photographs and a written report every time
- Satisfaction rate of 98%
- A sub-250g drone, flown with a CAA Flyer ID and Operator ID
Read our cost guide or our case studies.