Southampton · London and the South East
Thermal Roof Survey in Thornhill
Thermal roof surveys for homes and businesses in Thornhill. More than 5,000 surveys completed across London and South East England.
- Wet insulation beneath the membrane
- Heat escaping through the roof
- Moisture around outlets and upstands
Thermal roof survey in Thornhill: what you get
Our thermal survey records how the surface temperature varies across your roof. The patterns can suggest wet insulation, gaps in insulation or places where heat is getting out. The camera does not see water itself, 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. If you are worried about damp where roofs meet walls and chimneys and missing or slipped insulation, a survey will tell you what’s going on, on flat roofs, insulated roof spaces and commercial roofs alike.
Around Thornhill, lots of roofs are low enough to see partly from the garden or the street. The parts you can’t see, such as rear slopes, valleys and chimney tops, are where a drone or thermal camera adds detail. Both depend on the weather on the day. Close-up images frequently show wear on ridges, verges and flashings that can’t be judged properly from ground level.
Findings are set out part by part, from the coverings down to the gutters, with a note and a photo for each point. You’ll see the good as well as the bad.
- Where
- Thornhill (SO19, SO18, SO30)
- Region
- Southampton
- Price
- From £400 inc. VAT
- Report
- Emailed report with photos and recommendations
- Survey days
- Weekdays and weekends
- Insured
- PI and public liability insurance
- Phone
- 07833 053749
- Page updated
- 27 October 2026

Why it’s worth a survey now in Thornhill
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. Arranging work in a smaller place like Thornhill is easier with notice than in an emergency. Knowing early gives you time to get the right people in.
Price depends partly on the package: from £150 for Basic, £250 for Standard and £400 for Premium, inc. VAT. Size, height and access can affect the price too.
Why book with us
- Independent findings on the roof’s condition
- 20+ years’ experience
- CAA-registered drone operator (Flyer ID and Operator ID)
- More than 5,000 surveys completed
Read what a roof survey costs or our case studies.
What we can’t see
We only report whatever is safely visible on the day, so there are some things a survey cannot cover:
- A formal energy assessment
- Seeing water directly, as the camera shows temperature, not moisture
- Clear results when the conditions on the day are poor
If you’re not sure which survey you need, call 07833 053749 or email us and we’ll give you a straight answer before booking. What our survey covers.
What we check
- Pitched roof slopes
- Flat roofs
- Insulated roof spaces
- Loft conversions
- Commercial roofs
- Ceilings below the roof
Thermal roof surveys around Thornhill
Thornhill lies within about 3 miles of the sea, and wind off the sea can be strong. Calm, dry conditions after a sunny day suit thermal imaging best, so the visit is planned around the forecast. A number of Hampshire villages keep thatched roofs on their older buildings. Across the South East, older homes tend to have slate or clay tiles, and many later ones concrete tiles. Steep or complicated roofs are frequently hard to see from ground level, which is where close-up aerial shots and thermal images help.
Shop and office owners around Marlands Shopping Centre may find that thermal images can show trapped moisture across a wide commercial roof. South Stoneham House lies about 2.4 miles north-west, so building around Thornhill goes back a long way. Close-up aerial shots and thermal images let an old roof be checked without anyone disturbing it. For site and facilities teams at buildings such as Thornhill Primary School, thermal images can show where wet insulation sits under a big flat roof.
Thornhill is about 2 miles east of Southampton, in Southampton. Whether the building in Thornhill is a house, a flat or a commercial unit, we can survey the roof on a weekday or at the weekend. Across Southampton, we cover Thornhill and the places around it.
All of SO19, SO18 and SO30 is covered for thermal roof surveys. You’ll find streets such as Drove Road, Barry Road and Luton Road. You will find Thornhill on the A334, so it is easy for us to get to. Neighbouring places we cover for thermal roof surveys include Harefield (1 mile north), Sholing (1 mile south-west), Bitterne (1 mile west), West End (1 mile north) and Chartwell Green (1 mile north). Within a short drive, we also cover Shirley (4 miles west), Regents Park (4 miles west), Maybush (5 miles west), Portswood (3 miles north-west), Coxford (5 miles west) and Freemantle (4 miles west). Thornhill is one of the larger places we cover in Southampton.
Local landmarks in Thornhill
In Thornhill, that means homes and buildings near Westwood Woodland Park, Woodlands Community College and Grove Park Business and Enterprise College, among other places. For rail, the closest station is Sholing station, about 1.4 miles south-west of the centre. Well-known places in the area include Moorgreen Hospital (1.4 miles north-east) and Bitterne Local History Society Heritage And Research Centre (1.1 miles west). Green spaces nearby include Netley Common.
What a survey costs
Every roof is different, so prices are confirmed before booking. These are the things that affect it:
- Commercial roofs and larger buildings
- Roof area
- The number of roofs, including extensions and garages
- The height of the building and how the roof can be seen safely
Every price we give includes VAT, and the report isn’t charged as an extra. Prices start from £400, including VAT. Size, height and access decide where your roof falls.
What to let us know when you get in touch
Getting the details right at the start saves time. Please include:
- Where any leaks, stains or damp patches show inside
- When you need the report by
- Photos of the roof, taken safely from the ground or a window
- Access details, like a loft hatch or a shared roof
Every survey is priced before it’s booked, so you know the cost up front. Our price is from £400, including VAT. To book, ring 07833 053749 or use the contact form.
What we do, step by step
Time on site depends on the size and shape of the roof, but as a rough guide the survey takes roughly 1–2 hours for a house; commercial roofs usually need 3–4 hours. You are welcome to ask questions while we are there. Homes around Thornhill often have gardens on more than one side, which gives us room to step back and see the roof. Let us know if any side is fenced off or hard to reach. The loft, where there’s safe access, completes the picture.
- We start by discussing the roof, any signs of damp and how the weather may affect the images.
- The roof is inspected visually from safe viewpoints.
- Thermal images are taken to show differences in surface temperature.
- Any patterns of interest are checked with moisture readings where we can reach them.
- The report sets out the images, what they suggest and what we recommend.
Before we arrive
- Mention any parking restrictions on your street
- Unlock side gates and any roof access doors
- If it isn’t your property yet, arrange access through the agent
Getting a price
To get a price for thermal roof surveys in Thornhill, ring 07833 053749 or use the contact form. The address, the type of property and what you want to find out help us give you an accurate price.
Related advice
Common questions in Thornhill
Are there drone restrictions around Thornhill?
That depends on where the roof is and on the weather. Thornhill is inside, or right on the edge of, the flight restriction zone around Southampton Airport. We ask the airport for permission before flying there, and only fly if it’s given. A small drone cannot fly safely in strong wind or heavy rain, though the rest of the survey goes ahead either way.
Do you cover smaller places like Thornhill?
Yes, smaller places are covered as well as towns. We work right across London and South East England. Let us know about access, parking and anything unusual about getting there when you book.
Will you photograph what you find?
Yes. The report includes photographs of what we found.
Can you check my loft insulation with a thermal camera?
It can show temperature patterns that point to missing or thin insulation. The difference is clearest when the building is heated and it’s colder outside. Where we can reach the loft safely, we check there too.
Is thermal imaging good for finding leaks?
It can help narrow down where water may be getting in. Patterns can suggest where trapped water has spread. We combine it with a visual inspection and moisture readings because the camera cannot confirm water on its own.
How do I arrange a thermal roof survey in Thornhill?
It’s easiest to call 07833 053749 or send us an email. Give us the address and a few details about the roof, and we will take it from there. We survey seven days a week.
I live in a flat. Can you survey the roof?
Yes. A shared roof needs access agreed first, with whoever owns or manages the building. Mention it when you get in touch and we’ll explain what’s needed.
Nearby places to Thornhill
Also in Thornhill
DIY checks: what’s safe
After heavy rain, check ceilings and the tops of walls for new stains. Take a photo and write down when you saw it.
What you can’t do safely is get up close. Roofs are fragile and slippery, and a fall can be serious. That part is for a survey.
Before and after the survey
A few practical points come up again and again on our surveys. They’re worth knowing whatever the roof:
- Check the loft can be reached safely
- Photograph damp patches with the date
- Leave the roof to people with safe access
- File the images with your roof records
If the images suggest moisture that cannot be confirmed, we will say what would help next, for example electronic leak detection or a roofer opening up a small section.
Keep outlets and gutters clear so water drains off the roof quickly. Less standing water means less chance of it getting under the covering.