Greater London · London and the South East
Thermal imaging roof survey in Willesden, Greater London
Thermal imaging to find moisture and heat loss patterns in a roof for Willesden, from an experienced roof surveyor. You get a clear written report with photographs.
- Moisture around outlets and upstands
- Patches of heat loss across the roof
- Leaks far from where the stain appears
About our thermal roof survey in Willesden
Thermal imaging is often most useful on flat roofs, from small extensions to large commercial roofs. Patterns can suggest where water is trapped under the covering. On pitched roofs, slates and tiles over a ventilated space can hide what’s below, so we also look from the loft where we can reach it safely. We’re often asked to look into gaps in loft insulation and damp around chimneys and parapets, across commercial roofs, loft conversions and pitched roof slopes.
London roofs sit shoulder to shoulder in terraces and blocks, so privacy and neighbours matter as much as the view. Images are taken to show the roof we are surveying, with care for neighbours’ privacy, in Willesden as anywhere. Let us know about the building and access when you book. Steep slopes, tall chimneys and rear additions are where the extra view helps most.
The report works through the roof section by section, from the main slopes down to the gutters and outlets. It records what’s sound as well as what isn’t.
- Location
- Willesden (NW10, NW2)
- Wider area
- Greater London
- Prices
- From £400 inc. VAT
- Reports
- Written, with photos, emailed to you
- Appointments
- Weekdays and weekends
- Insured
- Professional indemnity and public liability
- Telephone
- 07833 053749
- Updated
- 27 October 2026
For landlords and managing agents
Roof problems in a rented home affect tenants as well as the building. A survey shows what needs attention, so you can plan the work with less disruption.
An agent can book and manage the survey for a landlord, with the report sent to whoever needs it. We agree a time with the tenant beforehand.
Your questions about thermal roof surveys in Willesden
How do I find out if my home in Willesden is listed?
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.
Is parking a problem for a survey in Willesden?
Parking in Willesden, as in most of London, takes a little planning: a visitor permit or a bay close to the door helps a lot, so mention what’s available when booking.
Do I need to be at home?
Someone needs to let us in if we are looking inside or in the loft. Access is agreed with you as you book.
What can thermal imaging tell me about my roof?
The images show how warm or cool each part of the surface is. Differences can suggest wet areas, missing insulation or heat loss, which we then check with moisture readings.
Are you structural engineers?
No. We point out what can be seen, like sagging or deflection, but we do not carry out calculations or give an engineer’s opinion. If we think you need an engineer, the report says so.
Can you survey at the weekend?
Surveys can be booked for any day of the week: weekdays, Saturdays and Sundays. Let us know which days suit you when booking.
Will you walk on the roof?
Only if it’s safe. We inspect what can safely be seen: from ground level, from windows and vantage points, from the loft space, from the roof itself where safe and by drone where applicable. The report says if anything couldn’t be seen.
Places near Willesden
Other services in Willesden
Common roof problems in Willesden
After a long-running leak, insulation under a flat roof can stay wet. Knowing how much of the roof is affected helps decide between a local repair and more. Thermal images and moisture readings together can show the likely extent.
People usually book a survey when they’ve noticed one of these:
- Gaps in loft insulation
- Wet areas near outlets and upstands
- Possible trapped moisture under a flat roof covering
- Ceilings that feel colder in places
For site and facilities teams at buildings like St Andrew and St Francis CofE Primary School, a drone or thermal camera can show a large roof in a single visit.
Choosing a roof surveyor
- What they will not be able to tell you
- What experience they bring
- Which parts of the roof they’ll actually see
- What exactly goes into their report
What we look for on each type of roof
Pitched slate and tile roofs
Slate and tile roofs are often harder to read with a thermal camera, because of the air space beneath. We back up what the camera shows with a look in the loft where we can.
GRP fibreglass roofs
GRP surfaces can be shiny, which affects thermal readings. We allow for reflections and confirm findings with moisture readings.
Thermal roof surveys in Willesden: local notes
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. Bay roofs, hip ridges and dormers from later loft conversions are the details that set these houses apart. Steep or complicated roofs are often hard to see from the ground, which is where close-up aerial shots and thermal images help. Where the drone is part of the survey, the flight is checked against the Drone Safety Map first.
Fenton House, about 2.5 miles east, is one of the historic houses in the wider area around Willesden. Aerial photos and thermal images let an old roof be checked without anyone disturbing it. Take an older house close to Church of St Andrew: older roofs can be steep and hard to see from the street, which is where close-up aerial shots and thermal images help.
Willesden is about 2 miles west of Hampstead, in Greater London. Whether the building in Willesden is a house, a flat or a commercial unit, we can survey the roof on a weekday or at the weekend. Across Greater London, we cover Willesden. London is in our area too.
We cover every part of the NW10 and NW2 postcode area for thermal roof surveys and the streets around it. Local streets include Tudor Mews, Chaplin Road and Belton Road, all of which we cover. Main roads around Willesden include the B453, which makes travel easy. If you are just outside Willesden, we cover Willesden Green (1 mile south), Neasden (1 mile north-west), Church End (1 mile west), Cricklewood (1 mile north-east) and Harlesden (1 mile south-west). We also work in nearby towns like London (7 miles south-east), City of Westminster (4 miles south-east), Marylebone (4 miles south-east), Kensington (4 miles south-east), St Pancras (5 miles east) and Shoreditch (7 miles east).
Local landmarks in Willesden
In Willesden, that means homes and buildings near Brondesbury College, Royal Oak Inn and Capital City Academy and the streets around them. For rail, the closest station is Kensal Rise station, about 1.1 miles south-east of the centre. Nearby you’ll also find Brent Cross Shopping Centre (2 miles north) and Brent Museum and Archives (less than half a mile east). Not far away are The Long Water and Primrose Hill.
Why it’s worth a survey now in Willesden
Heat lost through a roof costs money every winter. The camera can point to gaps and thin areas in the insulation, so improvements can go where they’re needed. Many older London roofs have only old felt under the slates, or no underlay at all, so once the slates or flashings let water past, little stops it reaching ceilings. Left unchecked, water soaks into timber and plaster and the damage spreads.
One thing that affects the price is the package: Basic from £150, Standard from £250 or Premium from £400, all including VAT. Size, height and access can affect the price too.
Why book us in Willesden
- Over 20 years’ experience
- 98% of clients satisfied
- 5,000+ surveys completed
- PI and public liability insurance
Take a look at what a roof survey costs and what we found on two real jobs.
The survey, step by step
We check the roof from outside and, where it is relevant and there’s safe access, from inside the roof space too. In the loft, the signs we look for are staining, damp, daylight and sagging. The whole visit normally takes an hour or two at a house, including the thermal images, and around 3–4 hours for a commercial roof. 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. Mention any building rules, key holders or managing agents when booking.
- We go through the roof, the problem and the weather expected on the day.
- The roof is inspected visually from safe positions.
- Thermal images are taken across the roof and, where there’s safe access, in the loft.
- Patterns that stand out are checked with moisture readings.
- The report pairs each thermal image with a photo and explains what it suggests.
Before the survey
- Buyers: confirm access with the estate agent or seller
- For a flat or shared roof, check access with the building owner or managing agent
- Tell us about parking before the day
How to book
Our price is from £400, including VAT. The exact figure depends on the roof and the package, so call 07833 053749 or use the contact form with the details.
Related advice
What you can safely check yourself
What you can’t do safely is get up close. Roofs are fragile and slippery. That is where a survey comes in, using safe viewpoints and a drone where applicable.
It helps to keep a record: when leaks happen, ground-level photos and any past roof work. Share it with us when booking, as it helps us focus the survey.