Greater London · London and the South East
Netherne on-the-Hill Thermal Roof Survey
Thermal imaging to find moisture and heat loss patterns in a roof in Netherne on-the-Hill. More than 5,000 surveys completed across London and South East England.
- Patches of heat loss across the roof
- Areas of a flat roof that may hold water
- Missing or slipped insulation
How a thermal roof survey works in Netherne on-the-Hill
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 do not. If a finding can’t be confirmed, the report suggests a next step. We survey flat roofs, commercial roofs and loft conversions, and common reasons people get in touch are moisture around outlets and upstands and possible trapped moisture under a flat roof covering.
Flying in London takes more checking than most places: 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. Every address in Netherne on-the-Hill is checked before any drone flight, and where permission is needed, the flight waits for it.
You receive the findings by email, easy to pass on to a roofer, an agent or an insurer. Turnaround is within 48 hours for Basic, 24–48 hours for Standard and same day for Premium.
- Place
- Netherne on-the-Hill (CR5)
- Region
- Greater London
- Prices
- From £400 inc. VAT
- Reports
- A written report with photos, by email
- When we survey
- Weekdays, Saturdays and Sundays
- Insurance
- PI and public liability insurance
- Phone
- 07833 053749
- Page updated
- 27 October 2026
Airspace, weather and Netherne on-the-Hill roofs
If your survey includes the drone, the flight is checked against the Drone Safety Map first. Before planning roof work on an older home, find out whether it is listed or in a conservation area. Changes that affect a listed building’s special interest need listed building consent, and councils can also use Article 4 directions to control changes in conservation areas.
Take a building like Coulsdon Sixth Form College: a drone or thermal camera can show a large roof in a single visit. If you run a business near The Belfry, a commercial roof can be photographed from above without anyone walking on it. Netherne on-the-Hill is in London, so parking needs planning: let us know about parking bays, permits or a driveway when booking, as a space near the door can’t be promised.
Netherne on-the-Hill is about 2 miles south of Coulsdon, in Greater London. We carry out thermal roof surveys in Netherne on-the-Hill for houses, flats, blocks and commercial buildings. Our area takes in places right across Greater London. We also survey roofs in Crawley.
All of CR5 is covered for thermal roof surveys. If you need a thermal roof survey at a property on The Village Square, Rookery Mead and Netherne Lane or anywhere close by, we can help. If you’re just outside Netherne on-the-Hill, we cover Hooley (1 mile west), Merstham (2 miles south), Chaldon (2 miles south-east), South Merstham (2 miles south) and Gatton (2 miles south-west). Further out, we also cover London (14 miles north), City of Westminster (15 miles north), Kensington (15 miles north), Brompton (14 miles north), Stockwell (12 miles north) and Orpington (12 miles north-east).
Landmarks near Netherne on-the-Hill
Locally, jobs take us to homes and businesses close to Shabden Park. The closest station to Netherne on-the-Hill is Coulsdon South station, about 1.6 miles north of the centre. Other landmarks nearby include The Belfry (3.8 miles south) and East Surrey Museum (2.9 miles east). Not far away are South London Downs National Nature Reserve and Colley Hill.
Towns and villages near Netherne on-the-Hill
Also in Netherne on-the-Hill
Why get it checked now?
Without thermal imaging, the only way to see how far water has spread is often to open up the roof. It helps when deciding whether to patch an area or replace the roof. Work on a London roof is rarely simple to arrange, with parking, neighbours and access all to think about. Knowing what’s needed early gives you time to plan it calmly, rather than in a rush after a leak.
There are three survey packages: the Basic Survey from £150, the Standard Survey from £250 and the Premium Survey from £400, with VAT included. The price for your roof depends on its size, access and what you need to know.
Why us?
- 98% customer satisfaction
- PI and public liability insurance
- An independent look at the roof
- Over 20 years’ experience
Read our cost guide and our case studies.
What this survey can’t tell you
It’s useful to know what a survey won’t do before booking:
- A structural engineer’s assessment
- Clear results when the conditions on the day are poor
- Hidden layers that need to be opened up to check
If you are not sure which survey you need, phone 07833 053749 or use the contact form and we’ll give you a straight answer. What a survey covers and doesn’t.
What this survey covers
- Insulated roof spaces
- Pitched roof slopes
- Flat roofs
- Commercial roofs
- Ceilings below the roof
- Loft conversions
What we do, step by step
Time on site depends on the size and shape of the roof; as a rough guide, the survey takes about one to two hours for most homes, plus time to check any thermal findings with moisture readings. You are welcome to ask questions while we’re there. London terraces rarely offer a view of the whole roof from one spot, so a visit in Netherne on-the-Hill moves between viewpoints: the pavement, upstairs windows, the loft and any safe spot at the back. If other people live in the building, let us know who can let us into the shared parts.
- 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.
- You get a report with thermal images, photos and our recommendations.
Before the survey
- Unlock side gates and any roof access doors
- If you’re buying, let the agent know when we are coming
- Agree roof access with the managing agent if it’s shared
Arrange a survey
Not sure which survey you need? It is easiest to ring 07833 053749 or use the contact form and describe the roof and what’s worrying you. We will talk you through the options and what they cost.
Advice
Netherne on-the-Hill: your questions answered
How do I find out if my home in Netherne on-the-Hill is listed?
Start with Historic England’s list for listing and your council for conservation areas. It’s worth checking before planning roof work, as both can affect what’s allowed.
Are there drone restrictions around Netherne on-the-Hill?
It depends on the exact address and the weather on the day. Across London there are restriction zones around Heathrow, London City and London Heliport, plus 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, including zones around airports and prisons. The flight also waits for calm, dry weather, though the rest of the survey goes ahead either way.
Do I need to be at home?
Not necessarily. An outside-only look can be arranged beforehand, but the loft and any rooms with damp need someone to let us in.
Is this an asbestos survey?
No. Asbestos surveys and testing aren’t part of what we do. We flag materials that could contain asbestos, such as cement sheets or soffits on pre-2000 buildings.
Is thermal imaging included in your surveys?
It comes with our Premium Survey, which starts from £400. That also includes a full inspection, a drone inspection where applicable, structural analysis and a same-day report.
What do I do with the report?
You receive the written report by email, with photos and recommendations. You can use it to talk to a seller, an insurer, a roofer or a managing agent, whichever applies.
Can thermal imaging show missing insulation?
The camera can point to heat loss and gaps in insulation. We do not give energy ratings or heat loss calculations, but the images show where improvements may help.
Can I check my roof myself?
During heavy rain, look at the gutters from ground level or a window. Water spilling over the edge can point to a blockage or a sagging run.
After strong wind, take a look from the pavement or garden: pieces of tile or slate on the ground, a gap in the ridge or a lifted flashing are all worth noting. Leave anything above ground level to a survey.
Landlord and commercial surveys in Netherne on-the-Hill
For blocks of flats, a roof survey helps managing agents and residents’ management companies plan ahead. The report sets out what needs attention now and what can wait.
Letting agents frequently book on a landlord’s behalf, and the report can go to both. We agree a time with the tenant beforehand.
Useful tips for Netherne on-the-Hill property owners
You don’t need to be a roofer to help. What helps most:
- Talk to us about the weather when booking
- Note where damp appears and after what weather
- Take photos of stains as they appear, so we can compare
- Keep outlets and gutters clear to stop water sitting
You also get an in-person consultation with a Premium Survey, giving you the chance to talk through the images and findings. There is a 12-month follow-up too.
After repairs or a new covering, a later survey can confirm things are dry, when the conditions are suitable.