Greater London · London and the South East
Roof leak investigation in Sidcup, Greater London
Find out the condition of the leaking roof at your property in Sidcup. We visit on weekdays and at weekends.
- Leaks below a flat extension roof
- Staining around the chimney inside
- Brown rings on upstairs ceilings
How a roof leak investigation works in Sidcup
Our roof leak investigations cover Sidcup and the wider South East. We visit seven days a week. We look inside and out, at flashings, valleys, chimneys, gutters and flat roof details. You get a photo-illustrated written report and recommendations. If water is coming in now, catch it in a bucket and keep it away from lights and sockets, then phone 07833 053749 or use the contact form. We are often asked to look into condensation that looks like a leak and wet patches on loft insulation, across flat roof details, chimney stacks and lead flashings.
In converted houses and blocks across London, water from a roof can run a long way before it shows on a ceiling, 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 Sidcup, inside and out. Tell us when the water shows, and in what kind of weather.
What you get is a clear record of the leaking roof on the day we saw it. It is useful straight away, and a good reference for later.
- Location
- Sidcup (DA14, DA15, SE9, DA5)
- Region
- Greater London
- Prices
- From £150 inc. VAT
- Your report
- Written, with photos, emailed to you
- When we survey
- Weekdays, Saturdays and Sundays
- Cover
- PI and public liability insurance
- Telephone
- 07833 053749
- Page updated
- 27 October 2026
Tips from our surveys
Some practical points come up on survey after survey. They’re worth knowing whatever the roof:
- Make sure the loft is accessible
- Write down the wind direction and rain when it leaks
- Tell us about any past repairs to the roof
- Photograph the stain each time it appears
If the leak turns out to be condensation, the report says so, with recommendations on ventilation. It saves chasing a leak that isn’t there.
Check the loft after heavy rain, with care and a good torch. Look for drips, damp patches and stains on timbers. Take photos of anything that changes.
Roof leak investigations around Sidcup
Outer London has plenty of Victorian and Edwardian terraces with slate roofs, but also a great many interwar semis, often with hipped roofs in clay or concrete tiles. On a semi of that age, the small roofs over the bays, the hip tiles and any later dormer each need their own look. Different coverings let water in at different points, which shapes where the search starts. About 1.7 miles north lies Danson House, a reminder of how long the area around Sidcup has been built on. 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.
Landlords with a home close to Sidcup station may find that tracing a leak quickly matters when a tenant is living with it. If you run a business near Broadway Shopping Centre, finding where water is getting in quickly keeps disruption down.
Sidcup is about 3 miles north of Orpington, in Greater London. We cover Sidcup and the rest of Greater London, as part of our work across London and the South East. Across Greater London, we cover Sidcup and the places around it. London is in our area too.
All of DA14, DA15, SE9 and DA5 is covered for roof leak investigations. That includes homes and businesses on Station Road, High Street and Jubilee Way and the roads around them. You’ll find Sidcup on the A211 and A2001, so it’s easy for us to get to. If you’re just outside Sidcup, we cover Albany Park (1 mile south), Blendon (1 mile north-east), Foots Cray (1 mile south-east), Bexley (2 miles north-east) and North Cray (2 miles east). Within a short drive, we also cover London (10 miles north-west), City of Westminster (12 miles north-west), Marylebone (12 miles north-west), Kensington (14 miles west), St Pancras (11 miles north-west) and Shoreditch (10 miles north-west).
Local landmarks in Sidcup
Around Sidcup, our work takes us to homes and buildings near The Alma pub, Waring Park and Chislehurst and Sidcup Grammar School and the streets around them. Sidcup has its own railway station: Sidcup station. Other landmarks nearby include Queen Mary's Hospital (1 mile south) and Broadway Shopping Centre (2.4 miles north-east). Not far away are Summer Hill and The Tarn.
Do you need a roof leak investigation in Sidcup?
Slipped or missing slates and tiles let rain reach the underlay. Old bitumen felt may cope for a while, but it tears and sags with age, and very old roofs may have no underlay at all. Corroded nails, known as ‘nail fatigue’, are a frequent cause on slate roofs.
Most people get in touch after spotting one of these:
- A leak that comes and goes with the weather
- Wet patches high on an inside wall
- Water through the ceiling under a flat roof
- Brown rings on upstairs ceilings
If your house is among the older ones in the streets near Holy Trinity Church, the leak may come from a chimney, a valley or tired lead rather than the covering itself.
Before booking anyone
- How they plan to inspect the roof safely
- Will the report include photos?
- Whether the loft is part of the inspection
- What the survey will not cover
Sidcup: your questions answered
Do you cover Sidcup?
Yes, Sidcup is within the area we cover. We survey roofs across London and the South East. You can call 07833 053749 or use the contact form with the address and some details.
Is my home in Sidcup listed or in a conservation area?
You can check whether a building is listed on Historic England’s list, and your council can tell you if it’s in a conservation area. Listed building consent is needed for changes that affect a listed building’s special interest, and conservation areas can limit changes of roofing material.
How long will you be at the property?
The visit usually takes an hour or two on an ordinary house, and more on a big or complicated roof. We’ll give you an idea of timing as you book.
Can you trace a leak in dry weather?
In many cases, yes. Stains, tide marks, damp timbers and moisture readings typically point the way. Intermittent leaks can be harder, so photos and notes from when it leaks help a lot.
How should I prepare for the leak investigation?
Note when the leak appears and what the weather was doing, and take photos. Move stored items away from the loft hatch. If water is near any fittings, have an electrician check them.
How many surveys have you done?
Over 20 years and more than 5,000 surveys.
Does someone need to be in?
That depends on the survey. For inside areas and the loft space, someone has to give us access.
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. All in, the survey usually takes an hour or two for most homes, though a hard-to-trace leak can take longer. Surveys in Sidcup can be booked for any day of the week. It helps if you can point us to a visitor permit or a nearby bay, and to clear a path to the loft hatch. A back bedroom window can be the best vantage point for a rear addition, so we may ask to use one.
- We start with your notes and photos of the leak.
- We examine the damp area and the rooms near it.
- In the loft, we follow any signs of water back towards the roof.
- Outside, we check flashings, valleys, chimneys, gutters and flat roof details from every safe viewpoint.
- You receive a report with the likely source, photos and recommendations.
Before the survey
- Make sure the loft hatch can be reached
- Let us know about parking before the day
- Make sure we can get to the back of the property
How to book
Getting a price is simple: just call 07833 053749 or drop us an email, let us know about the property and we will recommend the right survey. The price is agreed up front.
Advice
Places near Sidcup
What else we do in Sidcup
What a survey costs
Prices always include VAT. What changes the price is:
- The use of thermal imaging or a drone
- Commercial roofs and larger buildings
- Features like valleys, chimneys, dormers and parapets
- Height and safe access
The Premium Survey includes thermal imaging and drone inspection where it applies, which starts from £400, including VAT. We can help you choose the package that fits what you want to find out.
What to let us know when you get in touch
A little information up front helps. It helps to include:
- Access details, like a loft hatch or a shared roof
- Pictures of the roof from a safe spot, if you have them
- Any deadline, such as an exchange date
- Any marks or damp showing indoors
For a price for roof leak investigations in Sidcup, call 07833 053749 or use the contact form. A few details about the property and the roof help us price the survey accurately.
Checking the roof from ground level
Your own check is a good start, but it is not a survey. You won’t see flashings, valleys or the backs of chimneys properly from the ground, and those are details a survey looks at closely.
What you can’t do safely is get up close. Roofs are fragile and slippery. That part is for a survey.
Landlords, agents and block managers in Sidcup
An agent can book and manage the survey for a landlord, and the report can go to both. We agree a time with the tenant beforehand.
For a freeholder or residents’ company, a roof report is a sound basis for a maintenance plan, with the most urgent items set out first.