Greater London · London and the South East
Thermal imaging roof survey in North Finchley, Greater London
Thermal roof surveys for homes and businesses in North Finchley. We have completed more than 5,000 surveys across London and the South East.
- Wet insulation beneath the membrane
- Wet areas near outlets and upstands
- Gaps in loft insulation
What happens if roof problems are left?
Trapped water can harm decks, timbers and ceilings the longer it stays. Looking now, while the damage may still be limited, keeps more options open. In a London terrace or conversion, a roof defect rarely stays your problem alone: a blocked parapet gutter or slipped slate can let water into the flat below or the house next door. Dealing with it early is far less disruptive.
Thermal roof survey starts from £400, including VAT. What you pay depends on the size and height of the roof, access and the package you choose.
Why us?
- Plain-English reports with photos
- Thermal imaging and drones used where they help
- Independent findings on the roof’s condition
- We hold a CAA Flyer ID and Operator ID
How a thermal roof survey works in North Finchley
Wet insulation under a flat roof covering holds heat for longer than dry. That means a wet area can show up as a different temperature from the rest of the roof. This can give an idea of how far water has travelled beneath the membrane, something you can’t usually tell from the surface. We then check those areas with moisture readings. Typical surveys look at wet insulation beneath the membrane and water getting in at parapets and stacks, across pitched roof slopes, commercial roofs and flat roofs.
London’s roofs are frequently hard to see from the street: butterfly roofs behind parapets, dormer tops and flat roofs over back additions. That’s where a view from the air or a thermal camera helps, by showing what can’t be reached safely. The weather decides the day: both drones and thermal cameras need the right conditions. Thermal images show surface temperature, not water itself, so findings are checked with moisture readings.
Findings are set out part by part, from the main slopes down to the gutters and outlets, each with a short note and a photograph. It records what’s sound as well as what is not.
- Where
- North Finchley (N12, N20, N11)
- Wider area
- Greater London
- Cost
- From £400 inc. VAT
- Your report
- Emailed report with photos and recommendations
- Appointments
- Monday to Sunday, daytime
- Cover
- Professional indemnity and public liability
- Phone
- 07833 053749
- Last updated
- 27 October 2026
Surveys for landlords and agents in North Finchley
Freeholders and residents’ companies use a roof report to plan and budget, with the most urgent items set out first.
For blocks of flats, a roof survey helps managing agents and residents’ management companies plan ahead. The report sets out what needs attention now and what can wait, which helps with budgets and planning.
Towns and villages near North Finchley
Also in North Finchley
Thermal roof surveys around North Finchley
Further from the centre, London’s housing takes in interwar semis with hipped roofs in clay or concrete tiles as well as slate-roofed terraces. 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 ground level, which is where photos from the air and thermal images help. With Heath Hall about 2.9 miles south, North Finchley sits in an area with a long building history. 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 a listed home or one in a conservation area may need consent for changes of material.
If you look after a shop, office or commercial unit, for example near Grand Arcade, a commercial roof can be photographed from above without anyone walking on it. Anyone responsible for a site like Sacks Morasha Jewish Primary School will know that big roofs are where aerial photos and thermal images show the most at once.
North Finchley is about 1 mile north of Finchley, in Greater London. If you’re in North Finchley, booking works exactly as it does anywhere else: a call or an email, a price, then a date. We cover towns and villages across Greater London. We also survey roofs in London.
We work across N12, N20 and N11 for thermal roof surveys and the streets around it. You’ll find streets such as High Road, Lodge Lane and Percy Road, and we cover them all. North Finchley sits on or near the A1000. Other places close to North Finchley include Woodside Park (1 mile west), Oakleigh Park (1 mile north), Whetstone (1 mile north), Friern Barnet (1 mile east) and Finchley (1 mile south). Further out, we also cover London (9 miles south-east), City of Westminster (7 miles south), Marylebone (7 miles south), Kensington (8 miles south), St Pancras (7 miles south) and Shoreditch (8 miles south-east).
Around North Finchley
We work in homes and buildings around Friary Park, Woodhouse College and The Bohemia pub and the streets around them. Also close by are Francis Skaryna Belarusian Library and Museum (0.5 miles west) and St Michael's Catholic Grammar School (less than half a mile south-west). North Finchley’s nearest station is New Southgate station, roughly 1.4 miles east. Well-known places in the area include Finchley Memorial Hospital (0.8 miles south) and Francis Skaryna Belarusian Library and Museum (0.5 miles west). The countryside around North Finchley includes Darland's Lake and Glebelands Local Nature Reserve.
Roof by roof
Felt and asphalt flat roofs
These coverings sit directly on the layers beneath, so temperature differences often show through. Any patterns are checked with moisture readings.
Pitched slate and tile roofs
On pitched roofs, slates and tiles over a ventilated space can mask what’s happening underneath. We combine the images with an inspection from the loft where there is safe access.
How the survey works
You don’t need to do much 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 about one to two hours for most houses, or half a day or so for a commercial building. From the street, a London terrace usually shows only its front slope or parapet, so a visit in North Finchley moves between viewpoints: the pavement, upstairs windows, the loft and any safe spot at the back. If other people live in the building, let us know who can let us into the shared parts.
- We talk through the roof, any damp or leaks, and the weather expected on the day.
- We carry out a visual inspection of the roof from wherever it can be seen safely.
- A thermal camera records how the surface temperature varies across the roof.
- We check the patterns that stand out with moisture readings where there’s safe access.
- The report sets out the images, what they suggest and what we recommend.
Before the survey
- Move anything stored under the loft hatch
- Jot down any questions you want answered
- For a flat or shared roof, check access with the freeholder or managing agent
Booking a survey
Photos help, if you have them. Take them safely from the ground or a window; never climb up to get a better view. To send them or to book, phone 07833 053749 or use the contact form.
Related advice
FAQs for North Finchley
Are there drone restrictions around North Finchley?
The answer turns on the exact location and the conditions on the day. Across London there are restriction zones around Heathrow, London City and London Heliport, plus 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, including zones around airports and prisons. Strong wind or heavy rain also stops a small drone flying, and the rest of the survey does not depend on the drone.
Is parking a problem for a survey in North Finchley?
It can be, so it helps to let us know about permits, visitor bays or off-street space when you book. That way the visit can be planned around it.
How do I book a survey in North Finchley?
It’s easiest to phone 07833 053749 or email us. Let us know the address and a little about the roof, and we will suggest the right survey. Surveys run on weekdays and at weekends.
Can you survey at the weekend?
Surveys can be booked for any day of the week: weekdays, Saturdays and Sundays. Just tell us the days that suit you.
Will I get photos?
Yes, every report has them. Each finding is shown in a picture where possible.
How long will you be at the property?
Most surveys take roughly 1–2 hours at a house, including the thermal images, and around 3–4 hours for a commercial roof. We’ll confirm the timing when booking.
Do I need to be at home?
If the survey includes the loft or the inside of the building, someone needs to let us in. Access is agreed with you when booking.
Common roof problems in North Finchley
Cold rooms under a roof, or high heating bills, lead some people to ask about heat loss. Gaps in loft insulation and poorly insulated roof areas can show up on the camera, particularly when it is warm inside and cold outside.
Things that often lead to a survey include:
- Damp around roof outlets and upstands
- Heat escaping through the roof
- Possible trapped moisture under a flat roof covering
- Water that travels before it shows
Controlled parking zones are common in London, so mention any permit rules for North Finchley.
Choosing a roof surveyor
- How they plan to inspect the roof safely
- Their drone registration, if they fly one
- How much experience they have with roofs like yours
- Whether they hold professional indemnity and public liability insurance
How we price thermal roof surveys
Prices always include VAT. What changes the price is:
- The package you choose: Basic, Standard or Premium
- The size of the roof
- Any need for thermal images or a drone flight
- Extra roofs, like extensions, dormers or garages
Thermal roof survey starts from £400, including VAT. Packages run from Basic at £150 through Standard at £250 to Premium at £400, with VAT included.
Helping us price your survey
There’s no need for technical words. Just let us know:
- How the loft is reached, if there is one
- Photos of the roof, taken safely from the ground or a window
- The kind of building and roof involved
- The reason for the survey, like buying, a leak or storm damage
Our phone lines are open seven days a week, including Saturdays and Sundays. For a price or to book, phone 07833 053749 or send us an email.