Kent · London and the South East
Knatts Valley Thermal Roof Survey
Wondering about the roof at a property in Knatts Valley? We carry out thermal roof surveys in Knatts Valley and across Kent, with plain-English findings.
- Areas losing heat at the eaves and junctions
- Stains that keep coming back
- Cold spots on ceilings under the roof
Thermal roof survey in Knatts Valley: what you get
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. It helps us see how far water may have spread under the covering, something you cannot typically tell from the surface. We then check those areas with moisture readings. Common reasons to book are damp patches with no obvious cause and cold areas below the roof, across insulated roof spaces, ceilings below the roof and commercial roofs.
Villages like Knatts Valley frequently stand in open country, where wind can be strong. High wind or heavy rain stops a small drone flying, and calm conditions also suit thermal imaging best. The visit is planned around the forecast, along with the journey and access. A change in the forecast can mean moving the visit to another day.
Where we can’t see part of the roof, the report says so. That way, it’s clear what was covered and what wasn’t, and what we’d suggest next.
- Where
- Knatts Valley (TN15)
- Region
- Kent
- Price
- From £400 inc. VAT
- Reports
- Emailed report with photos and recommendations
- Appointments
- Weekdays, Saturdays and Sundays
- Cover
- PI and public liability insurance
- Phone
- 07833 053749
- Updated
- 27 October 2026
How it works
We look at the roof from outside and, where it’s relevant and there’s safe access, from inside the roof space too. In the loft, the signs we look for are staining, damp, daylight and sagging. All in, the survey typically takes about one to two hours at a house, including the thermal images, and around 3–4 hours for a commercial roof. In a hamlet or village like Knatts Valley, a postcode doesn’t always lead to the right gate, so a few directions, or a note of a nearby landmark, help us arrive on time. After that, the survey runs as it would anywhere.
- We go through the roof, the problem and the weather expected on the day.
- We look over the roof from wherever it’s safe.
- Thermal images are taken across the roof and, where there’s 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.
Before the survey
- Dig out any old roof reports or invoices
- Have any questions written down, so nothing gets missed
- Check pets are kept safely away
Book a survey
You can call us seven days a week. For a price or to book, call 07833 053749 or send us an email.
Advice
Practical tips
Small things make a difference. Some pointers:
- Leave the roof to people with safe access
- Check outlets after heavy rain
- Heat the home normally on the days before
- Photograph damp patches with the date
Once we’ve been, the thermal images, photos and readings go into a single report. We explain what each image may mean, with our recommendations. With a Premium Survey, you get the report the same day.
Watch for new damp patches on ceilings beneath the roof. Early action keeps insulation from staying wet.
Your questions about thermal roof surveys in Knatts Valley
Is my home in Knatts Valley listed or in a conservation area?
For listing, use Historic England’s list; for conservation areas, ask the council. It matters most if you’re planning to re-roof in a different material.
Is Knatts Valley in the area you cover?
We do. The survey and report are the same in Knatts Valley as anywhere else, and visits run on weekdays and weekends.
What conditions are best for thermal imaging?
The results depend on the weather. Dry, calm weather after some sun gives the best chance of clear images. We record the conditions in the report, so you know how much weight to give the images.
Can you check my loft insulation with a thermal camera?
Gaps and thin areas of insulation can show up on the camera. It shows most clearly when it is warm inside and cold outside. Where we can reach the loft safely, we check there too.
How long does the survey take?
Most surveys take an hour or two at most homes; commercial roofs usually need 3–4 hours. The report follows by email.
I live in a flat. Can you survey the roof?
Yes, if whoever owns or manages the building agrees access. On a shared roof we can only inspect the parts we’re allowed to reach.
Which survey includes thermal imaging?
Our Premium Survey, from £400, includes thermal imaging. An in-person consultation and a follow-up 12 months later are included too. Larger commercial roofs are quoted for their size.
Why act early in Knatts Valley
If a big flat roof may need replacing, knowing the wet areas first is useful. Images backed by moisture readings show where problems seem to be before you spend. Outbuildings and barns around Knatts Valley are easy to forget, but a failed roof there can spoil what’s stored inside. It’s worth including them in a survey before a winter does the damage.
All our prices include VAT. Our price is from £400, including VAT. You will know the price for the job before booking.
Why choose Independent Roof Survey in Knatts Valley
- Photographs and a written report every time
- Thermal imaging and drone inspection where they help
- Satisfaction rate of 98%
- Drone flown under a CAA Flyer ID and Operator ID
Take a look at how roof surveys are priced and two real surveys.
Towns and villages near Knatts Valley
More services for Knatts Valley
What a survey costs
All our prices include VAT. What changes the price is:
- Basic, Standard or Premium
- Chimneys, valleys, parapets and other details
- The number of roofs, including extensions and garages
- If the survey needs thermal imaging or a drone
Prices quoted always include VAT, and the written report is part of the package. Our price is from £400, including VAT. Size, height and access decide where your roof falls.
What to let us know when you contact us
Here’s what helps us most when you contact us:
- What made you get in touch
- Any stains, drips or damp patches you’ve seen indoors
- Access details, such as a loft hatch or a shared roof
- Any photos you have, taken from ground level or a window
Booking is simple: just call 07833 053749 or drop us an email, let us know about the property and we will recommend the right survey. We confirm the price before anything is booked.
Rented homes, blocks and businesses
We also survey roofs for businesses and commercial landlords, from shops and offices to industrial units. Larger roofs take longer, so they’re priced to suit.
If you own several properties, surveys can be booked for more than one address. To discuss a number of properties, phone 07833 053749 or drop us an email with the addresses.
Common roof problems in Knatts Valley
After a long-running leak, insulation under a flat roof can stay wet. Owners want to know how far it has spread before deciding what to do. Thermal images and moisture readings together can show the likely extent.
Common reasons to book include:
- Damp that repairs haven’t cured
- Heat escaping through the roof
- Damp where roofs meet walls and chimneys
- Damp around roof outlets and upstands
The streets around a church like Church of Saint Mary the Virgin are frequently among the oldest in a place, and if yours is one of the older homes nearby, older roofs can be steep and hard to see from the street, which is where aerial photos and thermal images help.
Before booking any roof surveyor
- What experience they bring
- What happens after the report arrives
- What’s outside the scope of the survey
- Whether VAT is in the quoted price
Drones, thermal imaging and Knatts Valley roofs
About 2.8 miles north-west lies Lullingstone Castle, a reminder of how long the area around Knatts Valley has been built on. Older homes in the wider area often have features worth a closer look, such as lead valleys, tall stacks and roofs that have been patched over the years, and the council can say whether a home is in a conservation area. If your survey includes the drone, the flight is checked against the Drone Safety Map first.
If you look after a building such as West Kingsdown CofE VC Primary School, thermal images can show where wet insulation sits under a big flat roof.
Knatts Valley is about 4 miles north-east of Sevenoaks, in Kent. We carry out thermal roof surveys in Knatts Valley for houses, flats, blocks and commercial buildings. Our area takes in places right across Kent, large and small. You can also see our page for Maidstone.
Here we cover the TN15 postcode area for thermal roof surveys. If you need a thermal roof survey at a property on Knatts Lane and Knatts Valley Road or anywhere close by, we can help. Neighbouring places we cover for thermal roof surveys include East Hill (1 mile north-west), Woodlands (1 mile south), Romney Street (1 mile west), West Kingsdown (1 mile north-east) and Cotman's Ash (1 mile south). Larger places within reach include Maidstone (13 miles east), Dartford (8 miles north), Sevenoaks (4 miles south-west), Royal Tunbridge Wells (14 miles south), Gravesend (9 miles north-east) and Tonbridge (9 miles south).
Landmarks near Knatts Valley
Locally, jobs take us to homes and businesses close to Kemsing Down. For rail, the closest station is Kemsing station, roughly 2.5 miles south of the centre. Well-known places in the area include Sevenoaks Hospital (3.9 miles south-west) and Kemsing Castle Bank (2 miles south-west).