Greater London · London and the South East
Clerkenwell Roof Leak Investigation
Know where you stand with the leaking roof before you decide what to do next. We carry out roof leak investigations in Clerkenwell, with photographs and a clear written report.
- Condensation that looks like a leak
- Leaks below a flat extension roof
- Wet patches on loft insulation
What you can safely check yourself
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.
Watch the gutters in a downpour, from a window or the ground. Water spilling over the edge can be a sign of a blockage or a gutter that has dropped.
How a roof leak investigation works in Clerkenwell
On older houses, leaks frequently start at lead work and hidden gutters. Worn lead, tired valley linings and blocked parapet outlets are frequent causes. If your home has a butterfly roof, the central valley gutter is a common culprit. We check parapets, valleys and flashings from every safe viewpoint. Our report shows what we found, with photos. If you are worried about wet patches high on an inside wall and staining around the chimney inside, a survey will tell you what’s going on.
London’s Victorian and Edwardian roofs have often been repaired many times, so a new leak can be the latest sign of wear rather than a single event. Insurers normally exclude wear and tear, so it’s useful to know whether damage is old or new. That’s as true in Clerkenwell as anywhere in London. A written record with photos helps you explain what was found to whoever deals with it next.
After the visit, you get a photo-illustrated written report, emailed to you. It explains the condition of the leaking roof, the defects we found and what we recommend.
- Location
- Clerkenwell (N1, EC1V, WC1X)
- Region
- Greater London
- Prices
- From £150 inc. VAT
- Report
- Emailed report with photos and recommendations
- Survey days
- Weekdays, Saturdays and Sundays
- Insured
- PI and public liability insurance
- Phone
- 07833 053749
- Page updated
- 27 October 2026
Places near Clerkenwell
More services for Clerkenwell
What affects the cost of roof leak investigations
We confirm the exact price before you book. This is what makes a difference:
- Height and safe access
- The package you choose: Basic, Standard or Premium
- Features like valleys, chimneys, dormers and parapets
- Any need for thermal images or a drone flight
Simple, low roofs take less time to survey than tall or complicated ones, and the package you pick makes a difference too. The price is always agreed first.
Getting in touch
What helps most when you contact us:
- Any photos you have, taken from the ground or a window
- Where water is showing inside, if it is
- Where the property is, with the postcode
- Dates you’re working to, such as exchange
To get a price for roof leak investigations in Clerkenwell, ring 07833 053749 or drop us an email. Some details about the property and the roof help us give you an accurate price.
What happens on the day
Safety comes first on every visit. Everything that can be seen safely is inspected, and if part of the roof cannot be seen, the report says so. Most visits take roughly 1–2 hours at most homes, and longer for a large or complex roof. In a London area like Clerkenwell, the main things to sort out are parking and access: tell us about permits, visitor bays or off-street space, which floor the property is on and how to get into the loft. We then look at whatever is safely visible from ground level, windows, the loft and, where it is safe, the roof itself.
- We help you choose the package that suits the leak.
- We agree a date, including weekends.
- 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.
Before the survey
- Gather any invoices or paperwork from past roof work
- Make sure the loft hatch can be reached
- Leave side gates unlocked
Getting a price
You can call us seven days a week, including Saturdays and Sundays. To book or ask a question, call 07833 053749 or send us an email.
Related advice
Surveys for landlords and agents in Clerkenwell
Businesses and commercial landlords can book us too, from shops and offices to industrial units. Larger roofs take longer, and they’re priced for the size.
A roof problem in a let property affects your tenants as well as the building. A survey shows what needs attention, so you can plan the work around your tenants.
Practical tips
Small things make a difference, both for the survey and for the roof itself. Our tips:
- Keep water away from lights and sockets
- Protect furniture and flooring under the leak
- Mention any plumbing above the damp area
- Take dated photos of the leak
Standard includes a follow-up consultation to talk the findings through, and Premium includes an in-person consultation. It’s a chance to ask about anything in the report.
Keep the roof space ventilated. Air movement keeps condensation down, and condensation is a common false alarm. Keep insulation clear of the eaves.
Wind, rain and roofs in Clerkenwell
Historic houses such as Dr Johnson's House, about 0.8 miles south, show how far back building in the area around Clerkenwell goes. 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. Inner London’s Victorian and Edwardian terraces frequently have Welsh slate roofs. From the street you may see only a parapet, with a butterfly roof and a valley gutter behind it draining to the back. In a house like that, shared stacks, party-wall upstands and lead flashings all need looking at as far as they can be seen. Knowing the roof type helps narrow down where water may be getting in.
Homes near green spaces like King Square Gardens can get more leaves in their gutters in autumn, and an overflowing gutter soon means a wet wall. For site and facilities teams at buildings such as St Peter and St Paul RC Primary School, tracing a leak on a big roof starts with where the water appears and works back.
Clerkenwell is about 2 miles north of London, in Greater London. Roofs in Clerkenwell get the same thorough look as anywhere else in Greater London. Clerkenwell is one of the towns and villages in Greater London where we work for roof leak investigations.
Postcode districts we cover here for roof leak investigations: N1, EC1V and WC1X. If you need a roof leak investigation at a property on Long Lane, City Road and Noel Road or anywhere close by, we can survey it. Clerkenwell is on the A1 and A5201, which makes it simple to reach. We also cover the places around Clerkenwell: Farringdon (1 mile south), Angel (1 mile north), Smithfield (1 mile south), Holborn (1 mile south-west) and St Pancras (1 mile west). Within a short drive, we also cover Kensington (5 miles south-west), Walthamstow (5 miles north-east), Hampstead (4 miles north-west), Ruislip (14 miles west), Brompton (3 miles south-west) and Stockwell (4 miles south).
Around Clerkenwell
We work in homes and buildings around Barts Health Archives, The Sekforde pub and Elizabeth Garrett Anderson School. Other local landmarks include Tech City College (under half a mile north-east) and King Square Gardens (under half a mile north-east). Clerkenwell has its own railway station: Farringdon station. Well-known places in the area include Brunswick Centre (0.9 miles west) and Montfichet's Tower (0.9 miles south). Open spaces near Clerkenwell include St. James's Park Lake and Ludgate Hill.
Common roof problems in Clerkenwell
Some water in the loft isn’t rain at all. Moist air from bathrooms and kitchens condenses on the cold underside of the roof, particularly in lofts with blocked eaves. Drips from nails and damp underlay are typical signs.
Most people get in touch after spotting something like this:
- Brown rings on upstairs ceilings
- A leak that comes and goes with the weather
- Staining around the chimney inside
- Drips in the loft during heavy rain
Take an older house close to St James's Church: leaks on older roofs often start at lead flashings, valleys or around old chimney stacks.
Before booking any roof surveyor
- Whether they hold professional indemnity and public liability insurance
- How soon the report will arrive
- Will the report include photos?
- Which parts of the roof they’ll actually see
Common questions in Clerkenwell
Can parking be tricky for a visit in Clerkenwell?
It can be, so it is useful to let us know about permits, visitor bays or off-street space when you book. The visit is then planned around what’s available.
Do you cover Clerkenwell?
Yes, Clerkenwell is within the area we cover. Our area covers London and the South East. Just call 07833 053749 or send us an email and let us know about the property, and we will talk through which survey suits.
Will you photograph what you find?
Yes, every report has them. Each finding is shown in a picture where possible, so you can see what we mean.
Do you survey roofs on blocks of flats?
Yes, once access has been agreed. The roof of a block or converted house is often shared, so whoever owns or manages the building needs to agree access. We can only inspect what we are given access to.
Can you find a leak when it isn’t raining?
In most cases, yes. Damp materials can be found without rain. For leaks that only happen in certain storms, we report the most likely routes.
How long will you be at the property?
On site, it typically takes roughly 1–2 hours at a typical home; commercial roofs usually need 3–4 hours. The report follows within 48 hours for Basic, 24 to 48 hours for Standard and the same day for Premium.
Are you structural engineers?
No. We are roof surveyors, not structural engineers, and it doesn’t include calculations. We’ll recommend an engineer if we see signs that call for one.