Greater London · London and the South East
Thermal imaging roof survey in Purley, Greater London
Thermal roof surveys in Purley, backed by more than 20 years’ experience. You get a clear report with photos.
- Damp where roofs meet walls and chimneys
- Leaks far from where the stain appears
- Moisture around outlets and upstands
About our thermal roof survey in Purley
What a thermal camera can show depends a lot on the weather. A sunny day before the survey, a dry roof surface and little wind all help. Rain, wind and cloud can all make the patterns weaker. We will discuss the weather with you when booking, and the report explains how the conditions on the day affected the results. We survey flat roofs, pitched roof slopes and commercial roofs, and people most often book us about water that travels before it shows and damp around chimneys and parapets.
London airspace is busy and tightly controlled: 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. Before a drone goes up in Purley, the address is checked against all of them, and where permission is needed, the flight waits for it.
You can share the report with anyone who needs it: a seller or estate agent, an insurer, a roofer, a builder or a managing agent.
- Location
- Purley (CR8, CR2, CR5)
- 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
What affects the cost of thermal roof surveys
What a survey costs depends on the time and equipment it needs. That comes down to:
- If the survey needs thermal imaging or a drone
- The size of the roof
- Building height and the viewpoints available
- Chimneys, valleys, parapets and other details
We offer three survey packages: Basic from £150, Standard from £250 and Premium from £400, all with VAT included. The price for your roof depends on its size, access and what you need to know.
Getting in touch
The more you tell us, the easier it is to price the survey. When you contact us, it helps to mention:
- Any photos you have, taken from the ground or a window
- Where any leaks, stains or damp patches show inside
- Any deadline, such as an exchange date
- What’s prompted the survey
We confirm the price for the job before booking, so you know where you stand. Prices start from £400, including VAT. For a price for your roof, ring 07833 053749 or drop us an email.
Surveys for landlords and agents in Purley
We also survey roofs for businesses and commercial landlords, from shops and offices to industrial units. Bigger roofs take more time.
If you own several properties, surveys can be booked for more than one address. To discuss a number of properties, ring 07833 053749 or drop us an email.
What we look for on each type of roof
Single-ply and EPDM roofs
On larger commercial single-ply roofs, thermal imaging can help target moisture readings. That makes the survey more focused.
Pitched slate and tile roofs
Even on pitched roofs, the camera can point to heat loss and some damp. The report explains what the images can tell you and what they can’t.
When you need someone else
It’s useful to know what a survey won’t do before booking:
- Seeing water directly, as the camera shows temperature, not moisture
- Structural calculations, which need a structural engineer
- What’s inside walls or under coverings, without opening up
Not sure which survey suits your roof? You can call 07833 053749 or send us an email and we’ll tell you before you book. The full list of what we check.
What we check
- Commercial roofs
- Flat roofs
- Insulated roof spaces
- Ceilings below the roof
- Pitched roof slopes
- Loft conversions
What a thermal roof survey looks like in Purley
If the drone is used for your survey, the flight is checked against the Drone Safety Map first. The wider area around Purley has a long history of building, with Addington Palace about 3.6 miles north-east. On older houses around here, roofs often carry the marks of earlier repairs, from replaced slates to new lead.
Parking in Purley, as in most of London, takes a little planning: a visitor permit or a nearby bay makes the day easier, as a space near the door cannot be promised. Shop and office owners around St George's Walk may find that thermal images can show trapped moisture across a wide commercial roof. Take a building like Christ Church CofE Primary School (Purley): thermal images can show where wet insulation sits under a big flat roof.
Purley is about 2 miles south-west of Croydon, in Greater London. Anywhere in Purley, we can come and survey your property. Across Greater London, we cover Purley. For surveys nearby, see our London page.
Postcode districts we cover here for thermal roof surveys: CR8, CR2 and CR5. Streets in the area include High Street, Church Road and Brighton Road. With the A2022 close by, Purley is easy for us to reach. We also cover the places around Purley: Peaks Hill (1 mile north-west), Woodcote (1 mile west), Russell Hill (1 mile north), Roundshaw (1 mile north-west) and Woodcote Green (1 mile west). We also work in nearby towns like London (11 miles north), City of Westminster (12 miles north), Marylebone (13 miles north), Kensington (12 miles north), St Pancras (13 miles north) and Shoreditch (13 miles north).
Around Purley
Around Purley, our work takes us to homes and buildings near The Jolly Farmers pub, Laleham Lea School and Thomas More Catholic School. Purley has its own railway station: Purley station. Nearby you’ll also find Purley War Memorial Hospital (within half a mile north-east) and St George's Walk (2.7 miles north). For a walk, there is Duppas Hill and Foxley Wood.
Common questions in Purley
Can you fly a drone over a roof in Purley?
That depends on where the roof is and on the weather. 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. Every London address is checked against them before a flight. Before any flight, we check the Drone Safety Map for airspace restrictions. Strong wind or a downpour also stops a small drone flying, though the rest of the survey goes ahead either way.
Does a conservation area affect roof work in Purley?
You can check whether a building is listed on Historic England’s list, and your council can tell you if it is 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.
How does a thermal imaging roof survey work?
The images show how warm or cool each part of the surface is. Unusual patterns can point to trapped water, gaps in insulation or heat escaping, which we then check with moisture readings.
Do I have to be there for the survey?
Not necessarily. If we only need the outside, we can agree that in advance, but the loft and any rooms with damp need someone to let us in.
Is this an asbestos survey?
No. Asbestos surveys and testing are not part of what we do. We flag materials that could contain asbestos, such as cement sheets or soffits on pre-2000 buildings.
What’s in the report?
It works through the roof part by part, in writing and with photos, and ends with what we recommend. Points are put with the most urgent first where relevant.
Can you use a thermal camera on a sloping roof?
It can show heat loss and some damp, but it has more limits there. We explain what the images can and can’t tell you, and back them up with a visual inspection and moisture readings.
Before and after the survey
Nothing here needs a ladder. A few suggestions:
- Check outlets after heavy rain
- File the images with your roof records
- Note where damp appears and after what weather
- Keep the heating on as usual before a heat loss survey
If you’re buying, the report gives you specific points to raise with the seller or agent. It’s your decision how to use it, whether that’s asking for work or discussing the price.
Have small defects in the covering fixed early. Once water gets under a membrane, it can travel far before it appears inside.
What we do, step by step
The visit has one job: to see as much of the roof as can be seen safely and record it clearly. Everything we note and photograph goes into the written report. It normally takes an hour or two for most homes, plus time to check any thermal findings with moisture readings. From the street, a London terrace typically shows only its front slope or parapet, so a visit in Purley moves between viewpoints: the pavement, upstairs windows, the loft and any safe spot at the back. Shared stairs or a basement flat? Tell us who holds the keys.
- We start with the roof, its history and any signs of damp or heat loss.
- We check the conditions and note how they may affect the images.
- We inspect the roof and take thermal images during the same visit.
- We back up the thermal patterns with moisture readings.
- You get the report the same day, with an in-person consultation to follow.
How to prepare
- Have keys ready for side gates, garages or roof access doors
- Move anything stored under the loft hatch
- Buyers: confirm access with the estate agent or seller
Booking a survey
To get a price for thermal roof surveys in Purley, phone 07833 053749 or drop us an email. The address, the type of property and what you need to know help us give you an accurate price.