Greater London · London and the South East
Dartmouth Park Roof Leak Investigation
Not sure what state the leaking roof is in? We carry out roof leak investigations in Dartmouth Park and across Greater London.
- Wet patches on loft insulation
- Water marks that spread in wet weather
- Leaks at a dormer or roof window
How a roof leak investigation works in Dartmouth Park
Our job is to find the likely source and tell you. The report shows, with photos, where we believe the water gets in and how it travels, and recommends what should be done. It gives any roofer a clear brief. We find and report the source, while the repair is a separate matter. If you are worried about leaks that appear only in driving rain and water coming in around a roof light or dormer, we can find out what’s behind it.
Many London homes are well over a century old and their roofs have been patched more than once. Insurers typically exclude wear and tear, so it’s useful to know whether damage is old or new. A careful look in Dartmouth Park tells the two apart where the evidence allows. Photographs and a written account give you something specific to show an insurer, a landlord or a roofer.
The written findings come 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.
- Where
- Dartmouth Park (NW5, N19, N7)
- Wider area
- Greater London
- Price
- From £150 inc. VAT
- Your report
- Written, with photos, emailed to you
- Survey days
- Weekdays and weekends
- Cover
- PI and public liability insurance
- Phone
- 07833 053749
- Page updated
- 27 October 2026
Wind, rain and roofs in Dartmouth Park
The wider area around Dartmouth Park has a long history of building, with Witanhurst about 0.8 miles north-west. Older roofs in the wider area can hide decades of patch repairs, so the detail matters, and any change of roofing material on a listed home needs checking with the council first. Welsh slate on Victorian and Edwardian terraces is a familiar sight across inner London. A butterfly roof with a central valley gutter, tucked behind a parapet wall, is common on these houses. Lead flashings, party-wall upstands and shared chimney stacks are typical of these houses, if yours is one of them. Different coverings let water in at different points, which shapes where the search starts.
Anyone responsible for a site like Acland Burghley School will know that water through a big roof can travel a long way before it drips, so the search covers more than the obvious spot. If you live near a park such as Whittington Park, or anywhere with mature trees, autumn leaves can block gutters and valleys, so outlets and downpipes are worth watching. If you run a business near O2 Centre, water through a ceiling can damage stock and close a sales floor, so the source needs finding fast.
Dartmouth Park is about 2 miles east of Hampstead, in Greater London. We survey roofs in Dartmouth Park and the rest of Greater London. Dartmouth Park is one of the places in Greater London where we work for roof leak investigations.
We work across NW5, N19 and N7 for roof leak investigations. If you need a roof leak investigation at a property on Hugo Road, Ward Road and Anson Road or a nearby road, we can survey it. Neighbouring places we cover for roof leak investigations include Lissenden Gardens (1 mile south-west), Tufnell Park (1 mile east), Gospel Oak (1 mile south-west), Upper Holloway (1 mile north-east) and Highgate (1 mile north). Within a short drive, we also cover London (5 miles south-east), City of Westminster (3 miles south), Marylebone (3 miles south), Kensington (5 miles south-west), St Pancras (3 miles south-east) and Shoreditch (4 miles south-east).
Landmarks near Dartmouth Park
In Dartmouth Park, that means homes and buildings near The Dartmouth Arms, Whittington Park and Brookfield Primary School, among other places. Other local landmarks include Asanté Academy of Chinese Medicine (1.4 miles north) and Vaughan Williams Memorial Library (1.5 miles south). Dartmouth Park’s nearest station is Gospel Oak station, about 0.5 miles south-west of the centre. Other landmarks nearby include O2 Centre (1.8 miles south-west) and Isokon Gallery (1 mile south-west). The countryside around Dartmouth Park includes Belsize Wood and Dartmouth Park Hill.
Roof by roof
Parapet and box gutters
Linings, joints and outlets are inspected wherever it is safe, and look for signs of past overflowing.
Chimney stacks
Our chimney check is a visual inspection of the stack, and it isn’t a flue or gas safety check.
Rented homes, blocks and businesses
Letting agents often book on a landlord’s behalf, with the report sent to whoever needs it. Access is agreed with the tenant ahead of time.
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.
Can I check my roof myself?
What you can’t do safely is get up close. Slates, tiles, flat roofs and rooflights can give way. That is where a survey comes in, using safe viewpoints and a drone where applicable.
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.
What happens on the day
There is not much for you to do on the day. Show us any stains, drips or problem areas you know about, and we’ll take it from there. A typical survey takes roughly 1–2 hours, more where the leak is intermittent or the roof is large. In Dartmouth Park, as in much of London, a good many properties are flats or terraces without 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 tell us where the water appears, when, and what the weather was doing.
- 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.
How to prepare
- Jot down any questions you want answered
- Agree roof access with the managing agent if it’s shared
- Dig out any old roof reports or invoices
Book a survey
Booking is simple: just call 07833 053749 or send us an email and give us some details about the property and we will suggest the right survey. We confirm the price before anything is booked.
Advice
Also near Dartmouth Park
More services for Dartmouth Park
Useful tips for Dartmouth Park property owners
Most of what helps is simple and safe from the ground. Our suggestions:
- Have an electrician check any wet fittings
- Keep a photo record of the damp patch
- Let us know about any past repairs to the roof
- Catch drips in a bucket and protect the floor
Keep the report after the work is done. If water appears again, it shows what was found before.
After a storm, check the roof from the garden and the street. Pieces of slate or tile in the garden mean something has moved. Prompt repairs stop gaps turning into leaks.
Questions from Dartmouth Park
Is parking a problem for a survey in Dartmouth Park?
London parking needs a little planning, so let us know about permits, bays or a driveway when you book. That way the visit can be planned around it.
Does a conservation area affect roof work in Dartmouth Park?
Check Historic England’s online list first, then ask the council about conservation areas and any Article 4 direction. The answer matters most when a change of material is on the cards.
Why doesn’t the damp patch line up with the hole?
Water follows the easiest path, not the shortest. On a pitched roof it frequently runs down a rafter before it shows. Following that route is what our investigation does.
Can thermal imaging help find my roof leak?
We use thermal imaging where it helps, and it is included in our Premium Survey. It shows temperature differences, not water itself, so we confirm its findings with moisture readings.
Will you go up on the roof?
Only when it’s safe. Most of what we need can be seen from safe viewpoints, the loft and, where it applies, a drone, and the report notes anything we couldn’t see.
When does the report arrive?
It depends on the package: Basic within 48 hours, Standard in 24–48 hours and Premium the same day. Reports are sent by email.
Are you structural engineers?
No. We are roof surveyors, not structural engineers, and it doesn’t include calculations. We will recommend an engineer if we see signs that call for one.
What affects the price in Dartmouth Park
Our packages start from £150, inc. VAT. The price for your roof depends on:
- The use of thermal imaging or a drone
- Whether it is a home or a commercial building
- The package you choose: Basic, Standard or Premium
- Extensions, dormers and garages with roofs of their own
Roof leak investigation starts from £150, including VAT. What you pay depends on how big and how high the roof is, access and the package you choose.
What we need to know
A few details help us recommend the right survey and price. When you contact us, tell us:
- Where the property is, with the postcode
- Any deadline, such as an exchange date
- The type of building and roof, such as pitched or flat
- Pictures from the garden or a window, if you have them
You can call us seven days a week, including Saturdays and Sundays. For a price or to book, call 07833 053749 or send us an email.