Greater London · London and the South East
Thermal Roof Survey in Old Coulsdon
Thermal imaging to find moisture and heat loss patterns in a roof for Old Coulsdon, from an experienced roof surveyor. Every survey comes with a written report and photographs.
- Possible trapped moisture under a flat roof covering
- Wet areas near outlets and upstands
- Gaps in loft insulation
What affects the price in Old Coulsdon
We confirm the price for the job before booking. These are the things that affect it:
- The roof’s overall size
- If the survey needs thermal imaging or a drone
- Building height and the viewpoints available
- Commercial roofs and larger buildings
Bigger, taller and commercial roofs take more time to survey, so they’re priced to match. You will know the figure before booking.
Getting in touch
Before you get in touch, it helps to have:
- Any marks or damp showing indoors
- Dates you are working to, like exchange
- Pictures from the garden or a window, if you have them
- The address and postcode of the property
We confirm the exact price before you book, so you know where you stand. Thermal roof survey starts from £400, including VAT. For a price for your roof, ring 07833 053749 or drop us an email.
About our thermal roof survey in Old Coulsdon
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 cannot normally tell from the surface. Moisture readings are then used to check what the camera suggests. Typical surveys look at damp patches with no obvious cause and leaks far from where the stain appears, on pitched roof slopes, insulated roof spaces and commercial roofs.
Flying in London takes more checking than most places: 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. Every address in Old Coulsdon is checked before any drone flight, and where permission is needed, the flight waits for it.
With the Standard Survey, you also get moisture detection, a structural check and a follow-up consultation. The Premium Survey goes further, with thermal imaging, drone inspection where applicable, structural analysis and an in-person consultation.
- Place
- Old Coulsdon (CR5, CR3, CR8)
- Wider area
- Greater London
- Prices
- From £400 inc. VAT
- Reports
- Written, with photos, emailed to you
- Survey days
- Weekdays, Saturdays and Sundays
- Insured
- Professional indemnity and public liability
- Phone
- 07833 053749
- Last updated
- 27 October 2026
Places near Old Coulsdon
Other services in Old Coulsdon
Your questions about thermal roof surveys in Old Coulsdon
Are there drone restrictions around Old Coulsdon?
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. The flight also waits for calm, dry weather.
Is my home in Old Coulsdon listed or in a conservation area?
Start with Historic England’s list for listing and your council for conservation areas. Either can affect what roof work is allowed, so it’s worth checking before planning any.
Is it a structural engineer’s report?
No. We point out what can be seen, such as sagging or deflection, but we don’t carry out calculations or give an engineer’s opinion. If we think you need an engineer, the report says so.
How experienced are you?
We’ve completed more than 5,000 surveys, over more than 20 years, and 98% of clients are satisfied.
Can a thermal survey trace a roof leak?
It can help narrow down where water may be getting in. Patterns can suggest where trapped water has spread. It is used alongside a close inspection and moisture readings, as the camera alone can’t prove a leak.
Is this a RICS survey?
No. We look at the roof, not the whole building, and it is not a RICS Level 2 or Level 3 survey. Many buyers have both.
How long will you be at the property?
It typically takes about one to two hours at a house, including the thermal images, and around 3–4 hours for a commercial roof. You’ll then get the report by email.
Roof by roof
Pitched slate and tile roofs
Inside the loft space, thermal images can help with damp around stacks, valleys and roof windows. We check any patterns with moisture readings.
Felt and asphalt flat roofs
Built-up felt and asphalt roofs can hide trapped water for a long time. Thermal imaging helps suggest where it is, given suitable conditions on the day.
How it works
When we arrive, we begin with a quick chat about the roof and anything that’s worrying you. We then inspect everything that can safely be seen, from ground level, from windows, in the roof space and by drone where it applies. Most surveys take between one and two hours on an ordinary house, with bigger or more complicated roofs taking longer. Surveys in Old Coulsdon can be booked for any day of the week. London parking is often by permit or pay-and-display, so it is useful to know what’s near you. A back bedroom window can be the best vantage point for a rear addition, so we may ask to use one.
- 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.
- The report pairs each thermal image with a photo and explains what it suggests.
Getting ready for the survey
- For flats, check roof access has been agreed
- Check we can get to the back of the property
- Check pets are kept safely away
How to book
To get a price for thermal roof surveys in Old Coulsdon, ring 07833 053749 or drop us an email. A few details about the property and the roof help us price the survey accurately.
Advice
Why it is worth a survey now in Old Coulsdon
A poorly insulated roof loses heat year after year. The camera can point to gaps and thin areas in the insulation, so you know where to put things right. In a London terrace or conversion, a roof defect rarely stays your problem alone: failed flashings and blocked valley gutters can send water into more than one home. Dealing with it early is far less disruptive.
To find out what your survey will cost, call 07833 053749 or drop us an email with the address and a few details. We’ll confirm the figure before booking.
Why book with us
- Drone flown under a CAA Flyer ID and Operator ID
- Clear package prices, inc. VAT
- 98% customer satisfaction
- Visits on any day of the week
Take a look at what a roof survey costs or our case studies.
What a thermal roof survey does not cover
Our survey is not a RICS Level 2 or Level 3 survey, a structural engineer’s report or an asbestos survey. Other limits to bear in mind:
- A structural engineer’s assessment
- A formal energy assessment
- The condition of timbers we can’t see
If you are not sure which survey you need, ring 07833 053749 or use the contact form and we will give you a straight answer. What a survey covers and does not.
Roofs we survey in Old Coulsdon
- Ceilings below the roof
- Loft conversions
- Pitched roof slopes
- Flat roofs
- Commercial roofs
- Insulated roof spaces
DIY checks: what’s safe
It helps to keep a record: when leaks happen, ground-level photos and any past roof work. Send it with your enquiry and it will help the survey.
The one thing to avoid is getting up close. Roofs are fragile and slippery, and a fall can be serious. That’s where a survey comes in, using safe viewpoints and a drone where it applies.
Flying and imaging in Old Coulsdon
Where the drone is part of the survey, the flight is checked against the Drone Safety Map first. Alongside Victorian and Edwardian terraces, outer London has a great many interwar semis, often with hipped roofs of clay or concrete tiles. On a semi of that age, the small roofs over the bays, the hip tiles and any later dormer each need their own look. Steep or complicated roofs are often hard to see from the ground, which is where aerial photos and thermal images help.
Historic houses like Addington Palace, about 5 miles north-east, show how far back building around Old Coulsdon goes. Older roofs nearby can be steep and hard to see from the ground, and a survey from above or with a thermal imager doesn’t touch the roof itself. Anyone responsible for a site like Keston Primary School will know that thermal images can show where wet insulation sits under a big flat roof. For an older house near a landmark such as Church of St John the Evangelist, older roofs can be steep and hard to see from the street, which is where photos from the air and thermal images help.
Old Coulsdon is about 1 mile south-east of Coulsdon, in Greater London. Houses, flats, blocks and commercial buildings in Old Coulsdon can all book thermal roof surveys. Our Greater London coverage includes Old Coulsdon and the places around it. Our London page covers surveys nearby.
Postcode districts we cover here for thermal roof surveys: CR5, CR3 and CR8. Local streets include Ellis Road, Tollers Lane and Court Avenue, all of which we cover. If you are just outside Old Coulsdon, we cover Coulsdon (1 mile north-west), Chipstead (2 miles west), Purley (2 miles north), Woodcote (2 miles north-west) and Woodmansterne (3 miles west). Further out, we also cover London (14 miles north), City of Westminster (15 miles north), Marylebone (15 miles north), Kensington (14 miles north), Whitechapel (15 miles north) and Brompton (14 miles north).
Landmarks near Old Coulsdon
Around Old Coulsdon, our work takes us to homes and buildings near Sunnydown School, Dollypers Hill and The Tudor Rose pub and the streets around them. The closest station to Old Coulsdon is Coulsdon South station, about 1.4 miles north-west. Well-known places in the area include East Surrey Museum (2 miles south-east) and St Lawrence's Hospital (1.3 miles south-east). For a walk, there’s Nore Hill and Mercers Lake.