Greater London · London and the South East
Roof leak investigation in Coldharbour, Greater London
Roof leak investigations in Coldharbour, with over 20 years’ experience behind it. You get a clear report with photos.
- Ceiling stains that grow after rain
- Damp ceilings under a flat roof
- Damp on a chimney breast
Roof leak investigations for homes and businesses in Coldharbour
Some ‘leaks’ are not leaks at all. In a badly ventilated roof space, condensation can form under the roof and drip, and the stains look much like a leak. Telling the two apart matters, since the cure for one will not solve the other. The pattern of the damp, the ventilation and the timing all help us decide. If you’re worried about water dripping from rafters or underlay and ceiling stains that grow after rain, we can find out what’s behind it.
In a London flat, water can travel some way before it shows, sometimes in a different flat from the one below the defect. That makes the source hard to pin down, and finding it matters for whoever has to deal with it. In Coldharbour, we inspect what we can reach safely and are given access to. It is useful to know when the water appears and in what weather.
The report works through the roof section by section, from the coverings down to the gutters. It records what’s sound as well as what isn’t.
- Place
- Coldharbour (SE9, BR7)
- Wider area
- Greater London
- Cost
- From £150 inc. VAT
- Report
- Emailed report with photos and recommendations
- When we survey
- Weekdays, Saturdays and Sundays
- Insured
- PI and public liability insurance
- Telephone
- 07833 053749
- Updated
- 27 October 2026
What a roof leak investigation looks like in Coldharbour
The wider area around Coldharbour has a long history of building, with Eltham Palace about 1.1 miles north. On older houses around here, roofs often carry the marks of earlier repairs, from replaced slates to new lead, and the council can say whether a home is in a conservation area. In outer London, interwar semis with hipped, tiled roofs sit alongside older slate-roofed terraces. On a semi of that age, the small roofs over the bays, the hip tiles and any later dormer each need their own look. Knowing the roof type helps narrow down where water may be getting in.
Anyone responsible for a site like Mottingham Primary School will know that a leak through a large roof is often found some distance from where the water shows inside. Living close to Elmstead Wood is pleasant, but mature trees mean leaves in gutters and valleys each autumn, and an overflowing gutter soon means a wet wall.
Coldharbour is about 4 miles north-west of Orpington, in Greater London. Houses, flats, blocks and commercial buildings in Coldharbour can all book roof leak investigations, with a written report and photographs every time. Our Greater London coverage includes Coldharbour. You can also see our page for London.
Postcode districts we cover here for roof leak investigations: SE9 and BR7. We offer roof leak investigations to properties on Green Lane, Horley Road and Dorset Road and the roads around them. Other places close to Coldharbour include Mottingham (1 mile west), Chinbrook (1 mile west), New Eltham (1 mile north-east), Eltham (1 mile north) and Middle Park (1 mile north-west). Further out, we also cover London (8 miles north-west), City of Westminster (11 miles north-west), Marylebone (10 miles north-west), Kensington (12 miles north-west), St Pancras (10 miles north-west) and Shoreditch (9 miles north-west).
Landmarks near Coldharbour
We work in homes and buildings around Elmstead Wood and St Thomas More Catholic Comprehensive School, among other places. Coldharbour’s nearest station is Mottingham station, roughly 0.6 miles north of the centre. Other landmarks nearby include The Glades (2.4 miles south-west) and Metropolitan Police Museum (2.2 miles east). Not far away are The Tarn and Summer Hill.
Also near Coldharbour
Also in Coldharbour
Surveys for landlords and agents in Coldharbour
For a freeholder or residents’ company, a roof report is a sound basis for a maintenance plan.
Managing agents and residents’ management companies use roof surveys to plan maintenance. Recommendations are set out by urgency where it matters.
Coldharbour: your questions answered
Do you cover Coldharbour?
We do. The survey and report are the same in Coldharbour as anywhere else.
Can parking be tricky for a visit in Coldharbour?
It rarely stops a survey, but it’s worth planning. Let us know the parking rules on your street and we’ll work around them.
Can you survey a shared roof?
Yes, once whoever controls the roof agrees access. We check the parts we are given access to.
Do you climb onto every roof?
Not unless it’s safe. Most of what we need can be seen from safe viewpoints, the loft and, where it applies, a drone.
How long does the visit take?
On site, it normally takes about 1–2 hours at most homes, while a commercial roof takes nearer three to four hours. The report follows within 48 hours for Basic, 24 to 48 hours for Standard and the same day for Premium.
Is there anything I need to do ahead of the visit?
Keep a note of when it leaks. Move stored items away from the loft hatch. Keep away from any light or socket that water is reaching.
Do you use drones?
Yes, where applicable and safe. We fly a sub-250g drone and we are a CAA-registered drone operator (Flyer ID and Operator ID). It’s included in the Drone Roof Survey and, where it applies, the Premium Survey.
Checking the roof from the ground
A lot can be seen 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.
Inside, the loft is a good place to look, with care. Take a torch and only step on boards or joists, checking for stains, damp wood or chinks of daylight.
Do you need a roof leak investigation in Coldharbour?
Valleys carry a lot of water. Worn lead, cracked linings or a build-up of leaves and moss can send that water under the coverings. The stain may appear well away from the valley itself.
A survey can pick up problems such as:
- Water through the ceiling under a flat roof
- Staining around the chimney inside
- Water dripping from rafters or underlay
- Water that shows only in certain storms
If you own a rental within reach of Mottingham station, a clear finding on where water gets in helps you brief a roofer right away.
Before you book any roof surveyor
- Whether any drone flown is registered with the CAA
- Is VAT included in the price?
- Whether you get a written report with photos
- Whether the loft is part of the inspection
Tips from our surveys
From years of surveys, a few habits stand out as worth the effort:
- Take dated photos of the leak
- Leave roof access to professionals
- Clear the loft hatch so we can get in
- Write down the wind direction and rain when it leaks
Once the work is done, hold on to the report. If water appears again, it shows what was found before.
Have flashings and flat roofs looked at every few years. Flashings, valleys and flat roof details are frequent weak points, and wear is easier to deal with before water gets in.
What a survey costs
What a survey costs depends on the time and equipment it needs. The main factors are:
- The number of roofs, including extensions and garages
- Chimneys, valleys, parapets and other details
- The size of the roof
- Height and safe access
Thermal imaging and drone inspection (where applicable) come with the Premium Survey, from £400 with VAT included. We can help you choose the package that fits what you want to find out.
Getting in touch
Before you get in touch, it’s useful to have:
- The reason for the survey, like buying, a leak or storm damage
- The style of property, from a terrace to a block
- Any stains, drips or damp patches you’ve seen indoors
- Photos of the roof, taken safely from the ground or a window
Getting a price is simple: just call 07833 053749 or drop us an email, tell us about the property and we will recommend the right survey. We confirm the price before anything is booked.
The survey, step by step
Where it is relevant and can be reached safely, the loft space is checked as well as the outside. Inside, we look for staining, damp, gaps and signs of movement, as far as the space allows. The whole visit usually takes about 1–2 hours for a house, and longer for a large or complex roof. Many London properties are flats or terraces with no side access, so the back of the roof is often seen from upstairs windows, from inside or, where a flight is allowed, from the air. Mention any building rules, key holders or managing agents when you book.
- You get in touch with details of the leak and any photos.
- Inside, we check the damp area and the loft space above it.
- We check the likely entry points outside, such as flashings, valleys, chimneys and gutters.
- We use moisture detection, and thermal imaging where it’s useful.
- You receive a written report with photos showing the likely source and what needs attention.
Preparing for the visit
- For a flat or shared roof, check access with the building owner or managing agent
- Find any records of previous roof work
- Unlock side gates and any roof access doors
Arrange a survey
Roof leak investigation starts from £150, including VAT. The exact figure depends on the roof and the package, so ring 07833 053749 or drop us an email with the details.