Greater London · London and the South East
Streatham Roof Leak Investigation
Tracing where water is getting into your roof in Streatham, carried out by an experienced roof surveyor. Every survey comes with a written report and photographs.
- Brown rings on upstairs ceilings
- Condensation that looks like a leak
- Damp on a chimney breast
Your questions about roof leak investigations in Streatham
Will parking be an issue for a roof survey in Streatham?
It rarely stops a survey, but it’s worth planning. Let us know what parking is available nearby, and the visit is planned around it.
Do you cover Streatham?
Yes. We survey roofs across London and South East England, and Streatham is part of that. Just ring 07833 053749 or email us and let us know about the property.
Do you use thermal imaging to find leaks?
Where conditions suit, it can. 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 quickly is the report sent?
Each package has its own report time. Basic: within 48 hours. Standard: 24 to 48 hours. Premium: the same day. Mention any deadline when booking.
Which days do you carry out surveys?
Surveys can be booked for any day of the week: weekdays, Saturdays and Sundays. Just let us know the days that suit you.
What does a roof survey cost?
Roof leak investigation starts from £150, including VAT. You’ll know the price for your roof before booking. For a price, phone 07833 053749 or email us.
Is the repair included in the leak investigation?
Our job here is to trace the leak and explain it, not to carry out the repair. With the report, a roofer knows exactly where to look.
Roof leak investigations for homes and businesses in Streatham
Moisture readings and thermal imaging are used where they’re useful. 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. Thermal imaging works best after a sunny day, on a dry roof with little wind. Common reasons to book are wet patches high on an inside wall and damp on a chimney breast, on chimney stacks, valleys and parapet gutters and rooflights and dormers.
London’s Victorian and Edwardian roofs have frequently been repaired many times, so a new leak can be the latest sign of wear rather than a single event. Telling wear from a one-off event matters, because insurers normally exclude wear and tear. That is as true in Streatham as anywhere in London. A written record with photographs helps you explain what was found to whoever deals with it next.
We write the report in plain English, so you don’t need to be a roofer to follow it. Photographs show what each point refers to, with the urgent items made clear.
- Place
- Streatham (SW16, SW2, CR4, SW12)
- Region
- Greater London
- Cost
- From £150 inc. VAT
- Report
- Emailed report with photos and recommendations
- Appointments
- Monday to Sunday, daytime
- Cover
- PI and public liability insurance
- Phone
- 07833 053749
- Last updated
- 27 October 2026
What this survey can’t tell you
Without opening up the roof, some things stay hidden, so a survey has limits:
- Leaks from plumbing, tanks or pipework rather than the roof
- What’s under the covering or behind the plaster
- The repair itself (the investigation finds and reports the cause)
Not sure which survey suits your roof? You can phone 07833 053749 or send us an email and we’ll tell you. The full list of what we check.
What this survey covers
- The roof space
- Flat roof details
- Rooflights and dormers
- Valleys and parapet gutters
- Slate and tile slopes
- Lead flashings
- Chimney stacks
Practical tips
Small things make a difference, both for the survey and for the roof itself. Our tips:
- Keep a photo record of the damp patch
- Have an electrician check any wet fittings
- Check the loft is accessible
- Leave roof access to professionals
If there are several possible sources, we list them in order of likelihood. Recommendations are prioritised by urgency where relevant.
Don’t block the vents at the eaves. Air movement keeps condensation down, and condensation is a common false alarm. Keep insulation clear of the eaves.
Landlord and commercial surveys in Streatham
Buyers’ agents can book surveys on behalf of their clients. Reports are emailed, so they’re easy to pass on, photographs included.
With a portfolio of properties, surveys can be booked for more than one address. To discuss a number of properties, ring 07833 053749 or use the contact form.
What happens if roof problems are left?
Damp loft insulation loses much of its value. A slow leak can soak it for months before a stain appears. Catching it early limits what has to be replaced. 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 frequently older than it looks.
A Basic Survey starts from £150, inc. VAT. Standard is from £250 and Premium from £400, both including VAT. You’ll know the price for the job before booking.
What you get with us
- Package prices that include VAT
- Plain-English reports with photos
- Independent findings on the roof’s condition
- Drone and thermal imaging surveys available
Read what a roof survey costs and our case studies.
Signs you need a roof leak investigation in Streatham
Flat roofs fail with age and wear. A felt roof often lasts around 15 to 20 years, and splits, blisters and lifting laps let water in. Leaks often start at the edges, upstands and outlets.
Here are some of the things we see often:
- Ceiling stains that grow after rain
- Staining where a gutter or parapet meets the wall
- Damp ceilings under a flat roof
- Leaks that appear only in driving rain
If you look after a shop, office or commercial unit, for example near Southside Wandsworth, water through a ceiling can damage stock and close a sales floor, so the source needs finding fast.
Questions to ask before you book
- Which viewpoints they use to see the roof
- Whether you get a written report with photos
- What they won’t be able to tell you
- Their track record with similar roofs
How it works
You don’t need to do much on the day. Point out anything you’ve noticed, like stains, drips or loose pieces, and we will take it from there. The survey itself takes between one and two hours, more where the leak is intermittent or the roof is large. Many London properties are flats or terraces with no side access, so rear slopes are viewed from windows, the loft or, where a flight is allowed, by drone. If the building has a managing agent or access rules, tell us when you book.
- You get in touch with details of the leak and any photos.
- We check the stain, the ceiling and the loft above it.
- We check the likely entry points outside, like flashings, valleys, chimneys and gutters.
- Where it helps, we take moisture readings and use thermal imaging.
- 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
- Have keys ready for side gates, garages or roof access doors
- Keep pets out of the way during the survey
Getting a price
Not sure which survey you need? It is easiest to phone 07833 053749 or send us an email and describe the roof and what’s worrying you. We will talk you through the options and what they cost.
Advice
Places near Streatham
Also in Streatham
Roof leak investigations in Streatham: local notes
Welsh slate on Victorian and Edwardian terraces is a familiar sight across inner London. Behind many of their parapets sit butterfly roofs and valley gutters that can’t be seen from the pavement. Shared chimney stacks, party-wall upstands and lead work come with this kind of house. Each of these roof types has its own typical places for water to get in. About 2 miles east lies Kingswood House, a reminder of how long the area around Streatham has been built on. Older homes in the wider area often have features worth a closer look, like lead valleys, tall stacks and roofs that have been patched over the years, and the council can say whether a home is in a conservation area.
Trees in and around Streatham Common shed leaves that can end up in nearby gutters. Anyone responsible for a site like St Andrew's Catholic Primary School will know that a leak through a large roof is often found some distance from where the water shows inside.
Streatham is about 5 miles south of London, in Greater London. We survey roofs in Streatham across London and South East England. We cover towns and villages across Greater London.
Here we cover the SW16, SW2, CR4 and SW12 postcode area for roof leak investigations. Whether your property is on Stanthorpe Road, Gleneagle Mews and Madeira Road or anywhere close by, we can survey it. You’ll find Streatham on the A205 and A216, which makes it straightforward to reach. Neighbouring places we cover for roof leak investigations include Streatham Park (1 mile west), Furzedown (1 mile west), Streatham Hill (1 mile north), Hyde farm estate (1 mile north) and Grange Mills (1 mile north-west). We also work in nearby towns like London (5 miles north), City of Westminster (6 miles north), Marylebone (6 miles north), Kensington (6 miles north-west), St Pancras (7 miles north) and Shoreditch (7 miles north).
What’s near Streatham
In Streatham, that means homes and buildings near Bishop Thomas Grant Catholic Secondary School, Streatham Common and Waldorf School of South West London, among other places. Streatham has its own railway station: Streatham station. A little further out are Clockworks Museum (1.1 miles east) and Southside Wandsworth (3.3 miles north-west). For a walk, there is Knight's Hill and Battersea Park Lake.