Greater London · London and the South East
Thermal Roof Survey in Osidge
An experienced roof surveyor for thermal roof surveys in Osidge. More than 20 years and over 5,000 surveys across London and the South East.
- Patches of heat loss across the roof
- Missing or slipped insulation
- Water getting in at parapets and stacks
Thermal roof survey in Osidge: what you get
A thermal imaging roof survey uses a thermal camera to show differences in surface temperature across a roof. The patterns can suggest wet insulation, gaps in insulation or places where heat is getting out. It is important to know that the camera shows temperature, not water, so we check what it shows with moisture readings. Thermal imaging is included in our Premium Survey, from £400. The report also notes the conditions on the day, since they affect what the camera can show. We survey commercial roofs, insulated roof spaces and ceilings below the roof, and people most often book us about water getting in at parapets and stacks and possible trapped moisture under a flat roof covering.
Flying in London takes more checking than most places: there are flight restriction zones around Heathrow, London City and London Heliport, and restricted areas over Hyde Park, the City of London and the Isle of Dogs. Every address in Osidge is checked before any drone flight, and where permission is needed, the flight waits for it.
The report records the roof as we found it on the day. It is useful straight away, and a good reference for later, for instance when you want to check whether anything has changed.
- Where
- Osidge (N14, EN4, N11)
- Wider area
- Greater London
- Prices
- From £400 inc. VAT
- Your report
- Written, with photos, emailed to you
- Appointments
- Weekdays, Saturdays and Sundays
- Insurance
- Professional indemnity and public liability
- Phone
- 07833 053749
- Updated
- 27 October 2026
Thermal roof surveys around Osidge
Alongside Victorian and Edwardian terraces, outer London has a great many interwar semis, frequently with hipped roofs of clay or concrete tiles. If your home in Osidge is one of them, bay roofs, hips and later dormers each have their own details. Older coverings on steep or tall roofs are hard to judge from below, so close-up photos from the air and thermal images help. Bruce Castle, about 3.8 miles south-east, is one of the historic houses in the wider area around Osidge. If your home is one of the older ones, expect a mix of original materials and later repairs on the roof.
If you look after a shop, office or commercial unit, for example near Grand Arcade, thermal images can show trapped moisture across a wide commercial roof. If you live in an older home near St Andrew's Church, tall stacks and steep slopes are easier to judge with close-up aerial photos than from the pavement.
Osidge is about 2 miles south-east of Barnet, in Greater London. Wherever you are in Osidge, we can carry out thermal roof surveys at your property, on a weekday, Saturday or Sunday. Across Greater London, we cover Osidge and the places around it. Our London page covers surveys nearby.
Here we cover the N14, EN4 and N11 postcode area for thermal roof surveys. That includes homes and businesses on Dene Road, Farm Lane and Byre Road. Main roads around Osidge include the A111. We also cover Southgate (1 mile south-east), East Barnet (1 mile west), Brunswick Park (1 mile south-west), Oakwood (1 mile north-east) and Whetstone (1 mile south-west). Further out, we also cover London (10 miles south), City of Westminster (8 miles south), Marylebone (8 miles south), Kensington (10 miles south), St Pancras (8 miles south) and Shoreditch (8 miles south).
What’s near Osidge
Typical jobs here are in homes near Oak Hill Park, The Osidge Arms and Salcombe School and the streets around them. The closest station to Osidge is Oakleigh Park station, about 1 mile west of the centre. A little further out are Broomfield House Museum (1.6 miles south-east) and Grand Arcade (2.1 miles south-west). Open spaces near Osidge include Darland's Lake and Barfield Allotments Nature Park.
Different roofs, different checks
Felt and asphalt flat roofs
On felt and asphalt flat roofs, wet insulation can show as a temperature difference across the surface. We check those patches with moisture readings.
GRP fibreglass roofs
GRP surfaces can be shiny, which affects thermal readings. We allow for reflections and confirm findings with moisture readings.
The survey, step by step
Every roof is different; as a rough guide, the survey takes about 1–2 hours for a house, and about three to four hours for a commercial roof. If you have questions on the day, just ask. In a London conversion, the way into the loft space is frequently from a communal landing or the top flat. Where that is the case, access needs agreeing with whoever controls that landing. Otherwise, the visit in Osidge runs like any other.
- First we discuss the roof, any damp and the forecast for the visit.
- The roof is inspected visually from safe positions.
- Thermal images are taken across the roof and, where there is safe access, in the loft.
- We take moisture readings where the images suggest a problem.
- Each image is set beside a normal photo and explained in the report.
Before the survey
- Note where any stains or damp appear
- Make sure we can get to the back of the property
- Jot down any questions you want answered
Arrange a survey
Surveys can be booked for weekdays, Saturdays or Sundays. To arrange a day that suits you, call 07833 053749 or email us.
Advice
What affects the cost of thermal roof surveys
Not every roof costs the same to survey, and it comes down to:
- How tall the building is and how easy the roof is to see
- How big the roof is
- Features like valleys, chimneys, dormers and parapets
- The number of roofs, including extensions and garages
What a survey costs comes down to the roof itself: how big it is, how high it is, the number of separate roofs and how it can be reached and seen safely. Our price is from £400, including VAT.
What we need to know
If you can, have these to hand when you contact us:
- Why you want a survey: buying, a leak, a storm or new work
- Pictures of the roof from a safe spot, if you have them
- The style of property, from a terrace to a block
- Where the property is, with the postcode
Prices start from £400, including VAT. The exact figure depends on the roof and the package, and you can ring 07833 053749 or drop us an email to find out.
Landlord and commercial surveys in Osidge
We survey roofs for landlords and letting agents as well as householders. A written report with photos gives you a clear record of the roof, which helps you plan work between tenancies.
If you own several properties, you can book surveys for several addresses. To arrange surveys for several addresses, call 07833 053749 or drop us an email.
Do you need a thermal roof survey in Osidge?
Unexplained damp is one of the main reasons people ask for thermal imaging. A leak may start well away from where the stain appears. The camera helps narrow the search.
It’s worth booking a survey if you’ve seen:
- Water that travels before it shows
- Areas losing heat at the eaves and junctions
- Water getting in at parapets and stacks
- Cold spots on ceilings under the roof
If you look after a building like Monkfrith Primary School, thermal images can show where wet insulation sits under a big flat roof.
Choosing a roof surveyor
- When you’ll get the report
- What they will not be able to tell you
- What follow-up you get after the report
- Do they have a CAA Flyer ID and Operator ID for drone work?
Questions from Osidge
Is drone flying allowed in Osidge?
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. Every London address is checked against them before a flight. Before any flight, we check the Drone Safety Map for airspace restrictions, including zones around airports and prisons. The flight also waits for calm, dry weather.
Does a conservation area affect roof work in Osidge?
Check Historic England’s online list first, then ask the council about conservation areas and any Article 4 direction. It matters most if you’re planning to re-roof in a different material.
How long will you be at the property?
Most surveys take an hour or two for a house, while a commercial roof takes nearer three to four hours. We will confirm the timing when you book.
Will the survey show heat loss through my roof?
It can show temperature patterns that point to missing or thin insulation. The difference is clearest when the building is heated and it is colder outside. Where we can reach the loft safely, we check there too.
Is this a RICS survey?
No. This is a survey of the roof only, and it is not a RICS Level 2 or Level 3 survey. It can sit alongside a RICS survey if you want both.
I live in a flat. Can you survey the roof?
Yes, as long as access is agreed. Roofs over flats are often shared, so we need permission from the freeholder or managing agent. We inspect only the parts we are allowed to reach.
Does the weather affect a thermal survey?
Conditions on the day affect the results. A sunny day beforehand, a dry surface and calm air all help. Rain and strong wind can make the images less clear, so we discuss the forecast when booking.
Nearby places to Osidge
Also in Osidge
What happens if roof problems are left?
For buyers, a thermal survey adds detail that a visual inspection can’t give. Hidden problems found before exchange can be raised with the seller or agent. London’s older roofs often have bitumen felt underlay or none at all, so a slipped slate can soon mean water inside. Left alone, that means wet timbers and plaster, which is a far bigger job than the roof fault itself.
For a price for your roof in Osidge, call 07833 053749 or use the contact form with the address and a few details. We’ll confirm the figure before booking.
Why book with us
- More than 20 years surveying roofs
- Drones and thermal imaging where applicable
- More than 5,000 surveys completed
- Drone flown under a CAA Flyer ID and Operator ID