Greater London · London and the South East
Thermal imaging roof survey in Denmark Hill, Greater London
Thermal imaging to find moisture and heat loss patterns in a roof across Denmark Hill, using drones and thermal imaging where it applies. Call or email for a price.
- Areas of a flat roof that may hold water
- Cold spots on ceilings under the roof
- Wet areas near outlets and upstands
Thermal roof survey in Denmark Hill
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 can’t normally tell from the surface. We then check those areas with moisture readings. We’re frequently asked to look into damp around chimneys and parapets and heat escaping through the roof, on loft conversions, ceilings below the roof and flat roofs.
Many London roofs are hidden from the pavement: valley gutters behind parapets, dormers and flat-roofed rear additions. Drone photos and thermal images can show parts of a roof that are hard to reach safely. Weather on the day decides whether it goes ahead, in Denmark Hill as anywhere. What a thermal image shows is temperature, so anything that looks like moisture is checked with a meter.
The report records the roof as we found it on the day. That makes it useful now and a handy reference later, for example when you want to check whether anything has changed.
- Location
- Denmark Hill (SE5, SE24, SW9)
- Region
- Greater London
- Price
- From £400 inc. VAT
- Reports
- A written report with photos, by email
- Appointments
- Monday to Sunday, daytime
- Insured
- PI and public liability insurance
- Telephone
- 07833 053749
- Last updated
- 27 October 2026
Airspace, weather and Denmark Hill roofs
Within a mile and a half or so of Denmark Hill there are several hotels. If you look after one, a large roof can be surveyed without guests having anyone working above them. Historic houses such as Kingswood House, about 2.6 miles south, show how far back building in the area around Denmark Hill goes. On older houses around here, roofs frequently carry the marks of earlier repairs, from replaced slates to new lead, and the council can say whether a home is in a conservation area.
If you run a business near Surrey Quays Shopping Centre, big, flat commercial roofs are where close-up aerial shots and thermal images help most. Take a building like Lyndhurst Primary School: big roofs are where close-up aerial shots and thermal images show the most at once. For a London address like Denmark Hill, it helps to know about controlled parking before the day.
Denmark Hill is about 1 mile east of Stockwell, in Greater London. Denmark Hill gets the same service as everywhere else we work: a careful inspection, photographs and a written report. Denmark Hill is one of the towns and villages in Greater London where we work for thermal roof surveys.
Thermal roof surveys in SE5, SE24 and SW9 work the same way as everywhere else we cover. That includes homes and businesses on Wren Road, Grove Lane and Lowth Road and the roads around them. Other places close to Denmark Hill include Camberwell (1 mile north), East Dulwich (1 mile south-east), Herne Hill (1 mile south), Peckham (1 mile east) and Dulwich Village (1 mile south). Within a short drive, we also cover City of Westminster (4 miles north-west), Marylebone (4 miles north-west), Kensington (5 miles north-west), St Pancras (4 miles north), Shoreditch (4 miles north) and Walthamstow (9 miles north).
What’s near Denmark Hill
We work in homes and buildings around Brunswick Park, The Hospital and Home Tuition Sick Children's Service and The Phoenix pub, among other places. There is a railway station in Denmark Hill itself: Denmark Hill station. Other landmarks nearby include House of Dreams Museum (0.7 miles south-east) and Tower of London (2.9 miles north). Open spaces near Denmark Hill include Centre for Wildlife Gardening and Battersea Park Lake.
Before and after the survey
These tips come from what we see on roofs every week:
- Check from ground level or a window, never by climbing
- Note where damp appears and after what weather
- Keep the heating on as usual before a heat loss survey
- Photograph damp patches with the date
You can pass the report to a roofer so they can see where the problem areas seem to be. Because the images are paired with photos, it is easy to find each area on the roof.
Make sure loft insulation covers the whole area and hasn’t been disturbed. Gaps frequently appear after work in the loft.
What we do, step by step
Expect us to ask a few questions before we start, like when any problem began and what work has been done before. Then the inspection itself takes between one and two hours for a house; commercial roofs usually need 3–4 hours. In converted houses and mansion blocks, the loft hatch is frequently on a shared landing. If that applies to your building, it’s useful to agree access with the neighbours or the managing agent first. Everything else is planned around the building, not the postcode.
- 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.
- A full inspection and thermal imaging are carried out together.
- Moisture readings are used to check what the camera shows.
- You get the report the same day, with an in-person consultation to follow.
Before we arrive
- Find any records of previous roof work
- Move anything stored under the loft hatch
- Mention any parking restrictions on your street
Booking a survey
Our price is from £400, including VAT. What you pay depends on the roof’s size, access and the package, and you can phone 07833 053749 or drop us an email to find out.
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When you need someone else
In fairness, there are limits to any roof survey:
- Seeing water directly, as the camera shows temperature, not moisture
- What’s inside walls or under coverings, without opening up
- Readings unaffected by sun, shade or reflections
If you’re not sure which survey you need, phone 07833 053749 or use the contact form and we’ll give you a straight answer before you book. What a survey covers and does not.
Roof types and parts we check
- Commercial roofs
- Pitched roof slopes
- Flat roofs
- Loft conversions
- Insulated roof spaces
- Ceilings below the roof
What happens if roof problems are left?
For buyers, a thermal survey adds detail that a visual inspection can’t give. Hidden problems found before exchange can be raised with the seller or agent. In Denmark Hill, as in much of London, water from a roof defect can reach a neighbour’s home as easily as yours: failed flashings and blocked valley gutters can send water into more than one home. Dealing with it early is far less disruptive.
Price depends partly on the package: Basic from £150, Standard from £250 or Premium from £400, all inc. VAT. Size, height and access can affect the price too.
Why book us in Denmark Hill
- Covered by professional indemnity and public liability insurance
- Package prices that include VAT
- Drone flown under a CAA Flyer ID and Operator ID
- Drones and thermal imaging where it applies
What affects the cost of thermal roof surveys
All our prices include VAT. The things that change the price are:
- The type of building, from a house to a block or an office
- The height of the building and how the roof can be seen safely
- How many separate roofs there are, such as extensions, dormers and garages
- The package you choose: Basic, Standard or Premium
A small, low roof with good viewpoints takes less time than a tall, complicated one, and the package you pick makes a difference too. The price is always agreed first.
Getting in touch
What helps most when you contact us:
- Pictures from the garden or a window, if you have them
- Access details, such as a loft hatch or a shared roof
- Dates you are working to, like exchange
- The type of building and roof, such as pitched or flat
If you have photos of the roof, send them over. Take them safely from the ground or a window; never climb up to get a better view. To get started, ring 07833 053749 or email us.
Can I check my roof myself?
After heavy rain, check ceilings and the tops of walls for new stains. Photograph them and note the date, which helps when we look at the roof.
Inside, the loft is a good place to look, with care. Use a torch and stay on the joists or boards, and look for staining, damp timber or daylight coming through.
Places near Denmark Hill
Other services in Denmark Hill
Questions from Denmark Hill
Is my home in Denmark Hill listed or in a conservation area?
We cannot confirm that for you, but Historic England’s list and your council can. A change of roofing material may need consent in either case, and councils can also use Article 4 directions.
Can parking be tricky for a visit in Denmark Hill?
Normally it’s manageable with a little notice. Tell us what parking is available nearby, and the visit is planned around it.
Will I get photos?
Yes. We photograph the roof as we go, and they go into the written report.
Do you survey on Saturdays and Sundays?
We carry out surveys on weekdays, Saturdays and Sundays. To find a day that suits you, call 07833 053749 or email us.
Can you inspect my roof with a drone?
Yes, where applicable and safe. We fly a sub-250g drone and we’re a CAA-registered drone operator (Flyer ID and Operator ID). It is included in the Drone Roof Survey and, where it applies, the Premium Survey.
Is thermal imaging good for finding leaks?
It frequently helps show where to look. 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.
What insurance do you have?
Every survey is covered by professional indemnity and public liability insurance, and we can provide details if a managing agent needs them.