Greater London · London and the South East
Thermal Roof Survey in Willesden Green
Thermal imaging to find moisture and heat loss patterns in a roof in Willesden Green, carried out by an experienced roof surveyor. Every survey comes with a written report and photographs.
- Damp around roof outlets and upstands
- Patches of heat loss across the roof
- Wet insulation beneath the membrane
Thermal roof survey in Willesden Green
Thermal imaging is useful when a damp patch has no clear cause. Leaks often run along a roof before they appear on a ceiling, and the camera can show patterns that help us follow it. We combine the images with a visual inspection and moisture readings, so the findings do not rely on the camera alone. We survey loft conversions, insulated roof spaces and ceilings below the roof, and people most often book us about areas losing heat at the eaves and junctions and cold spots on ceilings under the roof.
London airspace is busy and tightly controlled: restriction zones surround Heathrow, London City Airport and London Heliport, and Hyde Park, the City of London and the Isle of Dogs have restricted areas of their own. Before a drone goes up in Willesden Green, the address is checked against all of them, and where permission is needed, the flight waits for it.
The report is yours to share with whoever needs it: your solicitor, the seller, your insurer, a roofer or the building’s managing agent.
- Location
- Willesden Green (NW10, NW2, NW6)
- Wider area
- Greater London
- Prices
- From £400 inc. VAT
- Reports
- Emailed report with photos and recommendations
- Survey days
- Weekdays and weekends
- Insured
- Professional indemnity and public liability
- Telephone
- 07833 053749
- Page updated
- 27 October 2026
What a thermal roof survey looks like in Willesden Green
If the drone is used for your survey, the flight is checked against the Drone Safety Map first. About 2.5 miles north-east lies Fenton House, a reminder of how long the area around Willesden Green has been built on. Older homes in the wider area often have features worth a closer look, such as lead valleys, tall stacks and roofs that have been patched over the years, and any change of roofing material on a listed home needs checking with the council first.
If you look after a shop, office or commercial unit, for example near O2 Centre, thermal images can show trapped moisture across a wide commercial roof. As a London address, Willesden Green can be tricky for parking: let us know about parking bays, permits or a driveway when booking.
Willesden Green is about 1 mile south-east of Neasden, in Greater London. From houses to flats and shops in Willesden Green, the roof can be surveyed. Our area takes in places right across Greater London. Our London page covers surveys nearby.
Thermal roof surveys in NW10, NW2 and NW6 work the same way as everywhere else we cover. You will find streets such as Fry Road, High Road and Dean Road, all of which we cover. Other places close to Willesden Green include Willesden (1 mile north), College Park (1 mile south), Kensal Green (1 mile south), Harlesden (1 mile south-west) and Kensal Rise (1 mile south-east). Further out, we also cover London (7 miles south-east), City of Westminster (4 miles south-east), Marylebone (4 miles south-east), Kensington (3 miles south-east), St Pancras (5 miles east) and Shoreditch (7 miles east).
Around Willesden Green
Typical jobs here are in homes near Roundwood Park, Brondesbury College and Capital City Academy and the streets around them. The closest station to Willesden Green is Kensal Rise station, about 0.7 miles south-east. Other landmarks nearby include O2 Centre (2.2 miles east) and Brent Museum and Archives (within half a mile north). Open spaces near Willesden Green include Campden Hill and Westbere Copse.
Also near Willesden Green
Other services in Willesden Green
Common roof problems in Willesden Green
On big commercial and residential flat roofs, thermal imaging helps owners plan. Patterns can point to wet areas and show which parts look sound, so we know where to take moisture readings.
Look out for signs like these:
- Possible trapped moisture under a flat roof covering
- Wet areas near outlets and upstands
- Damp around chimneys and parapets
- Gaps in loft insulation
If you look after a building such as Donnington Primary School, a view from above covers a wide roof far faster than walking it.
What to check before booking
- If they fly a drone, whether they hold a CAA Flyer ID and Operator ID
- What experience they bring
- Whether VAT is added on top
- What insurance they carry
Tips that help
Getting the most from a thermal roof survey starts before we arrive and carries on afterwards. Tips:
- Clear a path to the loft hatch before we arrive
- Keep the heating on as usual before a heat loss survey
- Check from ground level or a window, never by climbing
- Tell us where and when you’ve seen damp or stains
The report explains the conditions on the day and how they affected the images. That way you know how much weight to give each finding.
Watch for new damp patches on ceilings beneath the roof. Early action keeps insulation from staying wet.
Honest limits
Every survey has limits, and we’d rather be clear about that before booking. Bear these in mind:
- Clear results when the conditions on the day are poor
- Hidden layers that need to be opened up to check
- A formal energy assessment
If you are not sure which survey you need, ring 07833 053749 or send us an email and we will give you a straight answer. What our survey covers.
What we check
- Flat roofs
- Pitched roof slopes
- Ceilings below the roof
- Insulated roof spaces
- Commercial roofs
- Loft conversions
What we do, step by step
Every roof is different; as a rough guide, the survey takes about 1–2 hours at a house, including the thermal images, and around 3–4 hours for a commercial roof. You’re welcome to ask questions while we’re there. In a London conversion, the way into the loft space is often from a communal landing or the top flat. Where that is the case, access needs agreeing with whoever controls that landing. Everything else is planned around the building, not the postcode.
- First we discuss the roof, any damp and the forecast for the visit.
- We look over the roof from wherever it’s safe.
- Thermal images are taken across the roof and, where there is 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.
How to prepare
- Have keys ready for side gates, garages or roof access doors
- Jot down any questions you want answered
- Clear the way to the loft hatch
Arrange a survey
We survey roofs seven days a week. To arrange a day that suits you, call 07833 053749 or send us an email.
Read more
What we look for on each type of roof
Felt and asphalt flat roofs
On felt and asphalt flat roofs, wet insulation can show as a temperature difference across the surface. Moisture readings are used to check them.
Pitched slate and tile roofs
Inside the roof space, thermal images can help with damp around stacks, valleys and roof windows. Findings are checked with moisture readings.
Why act early in Willesden Green
If a big flat roof may need replacing, knowing the wet areas first is useful. Images backed by moisture readings show where problems seem to be before you commit. Blocked gutters and hoppers on London houses overflow and soak brickwork, which can lead to damp inside. A small blockage left for a few winters becomes a damp problem.
For a price for your roof in Willesden Green, phone 07833 053749 or email us with the address and a few details. The price is agreed before a date is set.
Why us?
- Every finding written up with photos
- Visits on any day of the week
- More than 5,000 surveys completed
- Drones and thermal imaging where applicable
Take a look at our cost guide and our case studies.
Common questions in Willesden Green
Is my home in Willesden Green listed or in a conservation area?
Start with Historic England’s list for listing and your council for conservation areas. It’s worth checking before planning roof work, as both can affect what’s allowed.
Is drone flying allowed in Willesden Green?
It depends on the exact address and the weather on the day. London’s airspace includes flight restriction zones around Heathrow, London City Airport and London Heliport, and restricted areas over Hyde Park, the City of London and the Isle of Dogs. Each address is checked against all of them before the drone goes up. Every flight is checked against the Drone Safety Map first. The flight also waits for calm, dry weather, and the rest of the survey doesn’t depend on the drone.
How does a thermal imaging roof survey work?
The images show how warm or cool each part of the surface is. Differences can suggest wet areas, missing insulation or heat loss, and we check them with moisture readings.
How experienced are you?
Over 20 years and more than 5,000 surveys, across London and South East England.
Can you do a thermal survey in any weather?
The weather makes a real difference. A sunny day beforehand, a dry surface and calm air all help. Rain, wind and heavy cloud can weaken the patterns, so we discuss the forecast when booking.
How much does a thermal roof survey cost?
It is part of the Premium Survey, from £400. You also get an in-person consultation and a 12-month follow-up. Larger commercial roofs are quoted for their size.
Will you walk on the roof?
Not always. Safety comes first, and fragile or steep roofs cannot always be walked on. We use safe viewpoints, the loft space and a drone where it applies, and the report records anything we couldn’t see.