Kent · London and the South East
Thermal imaging roof survey in Thong, Kent
Need a thermal roof survey in Thong? We can help, with findings in writing and pictures to back them up. Book a weekday or weekend visit.
- Gaps in loft insulation
- Ceilings that feel colder in places
- Leaks far from where the stain appears
How a thermal roof survey works in Thong
Thermal imaging is a useful tool, but it has limits. It shows surface temperature, and things like sun, shade, reflections and wind all affect the readings. We back up the images with moisture readings and a careful look at the roof. The report is clear about what the images show and what they don’t. Where something cannot be confirmed, we say what would help next. If you’ve noticed damp that repairs haven’t cured and wet insulation beneath the membrane, a survey will tell you what’s going on, whatever the roof.
Older buildings in small places like Thong may be listed or in a conservation area. Neither a drone survey nor a thermal survey involves any work on the roof, so it is a gentle way to see the condition of an old roof. Check with the council before planning any work on a listed building or one in a conservation area.
We write the report in plain English, so it makes sense without any roofing background. Photographs show what each point refers to.

- Where
- Thong (DA12)
- Wider area
- Kent
- Prices
- From £400 inc. VAT
- Report
- Emailed report with photos and recommendations
- When we survey
- Weekdays, Saturdays and Sundays
- Insured
- PI and public liability insurance
- Phone
- 07833 053749
- Last updated
- 27 October 2026
Signs you need a thermal roof survey in Thong
Flat roofs that have leaked for a while can have wet insulation under the covering. Owners want to know how far it has spread before deciding what to do. A thermal survey, checked with moisture readings, can give a much clearer picture.
These are some of the problems a survey can pick up:
- Gaps in loft insulation
- Ceilings that feel colder in places
- Wet insulation beneath the membrane
- Stains that keep coming back
If you look after a building like Riverview Infant School, a view from above covers a wide roof far faster than walking it.
Before booking anyone
- Whether VAT is in the quoted price
- Which parts of the roof they’ll actually see
- Whether they hold professional indemnity and public liability insurance
- Whether the loft space is looked at, where there is one
Drones, thermal imaging and Thong roofs
Thong lies within about 4 miles of the sea, and wind off the sea can be strong. Thermal imaging works best after a sunny day, with a dry roof surface and little wind, so the date is chosen with the forecast in mind. With Cobham College about 1.5 miles south, Thong sits in an area with a long building history. If your home is one of the older ones, expect a mix of original materials and later repairs on the roof, and a listed home or one in a conservation area may need consent for changes of material.
For an older house near a landmark such as Church of St Peter and St Paul, thin or patchy insulation under an old roof frequently shows up clearly on a thermal image.
Thong is about 2 miles south-east of Gravesend, in Kent. We carry out thermal roof surveys in Thong for houses, flats, blocks and commercial buildings. Across Kent, we cover Thong and the places around it. Our Maidstone page covers surveys nearby.
All of DA12 is within our area for thermal roof surveys, from the main roads to the quietest streets. We also cover the places around Thong: Upper Ifield (1 mile east), Shorne Ridgeway (1 mile east), Shorne (1 mile east), Chalk (1 mile north) and Higham (2 miles east). Larger places within reach include Maidstone (11 miles south-east), Sittingbourne (15 miles east), Dartford (8 miles west), Sevenoaks (13 miles south-west), Northfleet (3 miles north-west) and Swanley (10 miles west).
Landmarks near Thong
We work in homes and buildings around Shorne Woods Country Park and Thamesview School. The nearest railway station is Sole Street station, about 2.2 miles south-west. A little further out are Rochester Castle (4.5 miles east) and Gravesham Museum (2.6 miles north-west). For a walk, there is Rede Common and Gad's Hill.
Before and after the survey
A survey works best with a little help from you, before and after. Some tips:
- Keep a record of when stains appear
- Keep dated photos of any marks on ceilings
- Leave the roof to people with safe access
- Do not switch the heating off before the visit
Where a pattern cannot be confirmed, the report says what could help, such as electronic leak detection or opening up a small area.
Clear outlets and gutters regularly, so water does not sit on the roof. The less water sits, the less can find its way beneath.
Nearby places to Thong
What else we do in Thong
What happens on the day
We’ll ask a few questions first, about the roof’s history, any leaks and past repairs. The inspection then takes about 1–2 hours at a house, including the thermal images, and around 3–4 hours for a commercial roof. In a small place like Thong, access is typically the main thing to plan. Let us know about outbuildings, past repairs and any leaks you’ve noticed. Weekday and weekend visits are available.
- You let us know about the roof and any damp, leaks or cold rooms.
- The weather and surface conditions are recorded.
- A full inspection and thermal imaging are carried out together.
- Moisture readings are used to check what the camera shows.
- The Premium report reaches you the same day, and we go through it with you in person.
Before we arrive
- Make sure we can get to the back of the property
- Jot down any questions you want answered
- Gather any invoices or paperwork from past roof work
Booking a survey
Thermal roof survey starts from £400, including VAT. What you pay depends on the roof’s size, access and the package, so call 07833 053749 or email us with the details.
Related advice
Surveys for landlords and agents in Thong
Any of our surveys can be booked by landlords, agents and building managers in Thong. For a price for a let property or a block, call 07833 053749 or email us.
We also survey roofs for businesses and commercial landlords. Bigger roofs take more time, so they’re priced to suit.
Your questions about thermal roof surveys in Thong
Do you cover smaller places like Thong?
Yes, we do. We survey roofs across London and South East England, from towns to the smallest villages. The journey is planned ahead, so it helps to know about access.
Do you carry out roof surveys in Thong?
Yes. We cover the whole of London and South East England, and Thong is part of that. You can phone 07833 053749 or drop us an email with the address and a few details.
Do you survey on Saturdays and Sundays?
We carry out surveys on weekdays, Saturdays and Sundays. To arrange a date, call 07833 053749 or use the contact form.
Can a thermal camera see water?
Not directly. It shows surface temperature, and wet areas can show up because they hold heat differently. That’s why we check any patterns with moisture readings.
How much does a thermal roof survey cost?
It’s part of the Premium Survey, from £400. An in-person consultation and a follow-up 12 months later are included too. Larger commercial roofs are quoted for their size.
How many surveys have you done?
We have completed more than 5,000 surveys, over more than 20 years, with 98% customer satisfaction.
How do I arrange a thermal roof survey in Thong?
To arrange a survey, call 07833 053749 or send us an email and tell us the address and what you need to know. We’ll confirm the price and find a day that suits.
Different roofs, different checks
Single-ply and EPDM roofs
On larger commercial single-ply roofs, thermal imaging can help target moisture readings. It focuses the survey on the areas that matter.
Felt and asphalt flat roofs
These coverings sit directly on the layers beneath, so temperature differences often show through. We confirm any patterns with moisture readings.
Prices for thermal roof surveys in Thong
All our prices include VAT. What changes the price is:
- Roof area
- How complicated the roof is, with its valleys, chimneys and parapets
- Whether thermal imaging or a drone is needed
- Basic, Standard or Premium
The Premium Survey includes thermal imaging and drone inspection where applicable, from £400 including VAT. We can help you choose the package that fits what you need to know.
Booking your survey
Here’s what helps us most when you get in touch:
- The address and postcode of the property
- Where water is showing inside, if it is
- The kind of building and roof involved
- How the loft is reached, if there is one
Buyers should book once an offer has been accepted, so you have the findings in time to act on them before you exchange. Otherwise, simply ring 07833 053749 or send us an email whenever suits you.