Greater London · London and the South East
Thermal Roof Survey in Merton Park
We take a careful look at the roof at your property in Merton Park, and put it all in a report with photographs.
- Wet insulation beneath the membrane
- Damp that repairs haven’t cured
- Wet areas near outlets and upstands
Flying and imaging in Merton Park
About 1.4 miles west lies Southside House, a reminder of how long the area around Merton Park has been built on. On older houses around here, roofs often carry the marks of earlier repairs, from replaced slates to new lead, and any change of roofing material on a listed home needs checking with the council first. Merton Park is about 2 miles from the edge of the flight restriction zone around London Heliport in Battersea. If your survey includes the drone, the exact boundary is checked for the address first.
If you look after a shop, office or commercial unit, for example near Southside Wandsworth, big, flat commercial roofs are where photos from the air and thermal images help most. Take a building like Merton Park Primary School: thermal images can show where wet insulation sits under a big flat roof.
Merton Park is about 1 mile south-east of Wimbledon, in Greater London. Houses, flats, blocks and commercial buildings in Merton Park can all book thermal roof surveys. Across Greater London, we cover Merton Park and the places around it. London is in our area too.
All of SW19, SW20 and SM4 is covered for thermal roof surveys, from the main roads to the quietest streets. Whether your property is on Mina Road, Manor Road and Cecil Road or anywhere close by, we can help. We also cover the places around Merton Park: Wimbledon Chase (1 mile west), Bushey Mead (1 mile west), Cannon Hill (1 mile south-west), Wimbledon (1 mile north-west) and Crooked Billet (1 mile north-west). Larger places within reach include London (8 miles north-east), City of Westminster (7 miles north), Marylebone (8 miles north), Kensington (6 miles north), St Pancras (9 miles north-east) and Shoreditch (10 miles north-east).
Local landmarks in Merton Park
Around Merton Park, our work takes us to homes and buildings near Wibbas Down Inn, Morden Hall Park and Wimbledon School of Art, among other places. Merton Park’s nearest station is South Merton station, roughly 0.5 miles south. A little further out are St George's Hospital (1.6 miles north-east) and Southside Wandsworth (3.1 miles north). For a walk, there’s Merton Park Green Walks and Henman Hill.
How a thermal roof survey works in Merton Park
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, which is hard to judge by eye. Moisture readings are then used to check what the camera suggests. We survey ceilings below the roof, commercial roofs and flat roofs, and the problems we’re asked to look at most are damp around roof outlets and upstands and patches of heat loss across the roof.
London roofs sit shoulder to shoulder in terraces and blocks, so privacy and neighbours matter as much as the view. Images are taken to show the roof we’re surveying, with care for neighbours’ privacy. Mention access, height and anything unusual about the building when you book. The extra view helps most on steep slopes, tall stacks and rear additions.
You receive the findings by email, easy to pass on to a roofer, an agent or an insurer. Basic reports come within 48 hours, Standard within 24–48 hours and Premium on the day.
- Where
- Merton Park (SW19, SW20, SM4)
- Wider area
- Greater London
- Prices
- From £400 inc. VAT
- Your report
- Written, with photos, emailed to you
- Survey days
- Monday to Sunday, daytime
- Insurance
- Professional indemnity and public liability
- Call
- 07833 053749
- Last updated
- 27 October 2026
Signs you need a thermal roof survey in Merton Park
Unexplained damp is one of the main reasons people ask for thermal imaging. Water can travel under a roof covering or along timbers before it shows inside. The camera helps narrow the search.
Signs worth acting on include:
- Moisture around outlets and upstands
- Leaks far from where the stain appears
- Wet insulation beneath the membrane
- Damp patches with no obvious cause
Controlled parking zones are common in London, so mention any permit rules for Merton Park, along with any off-street space.
Questions to ask before you book
- Whether they hold professional indemnity and public liability insurance
- What follow-up you get after the report
- Their report turnaround times
- Whether the loft is part of the inspection
Merton Park: your questions answered
Is drone flying allowed in Merton Park?
It depends on the exact address and the weather on the day. The flight restriction zone around London Heliport in Battersea comes within about 2 miles of Merton Park. We check the exact boundary for the address before flying, and if the roof falls inside it, we ask for permission first. 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. The flight also waits for calm, dry weather, and the rest of the survey does not depend on the drone.
Is my home in Merton Park listed or in a conservation area?
Check Historic England’s online list first, then ask the council about conservation areas and any Article 4 direction. The answer matters most when a change of material is on the cards.
Is Merton Park in your area?
Yes, we do. Merton Park is part of the area we cover, and the service is the same as everywhere else we work.
How long does the survey take?
It normally takes roughly 1–2 hours at most homes, and about three to four hours for a commercial roof. You will then get the report by email, on the timescale of your package.
What insurance do you have?
Our cover is professional indemnity plus public liability.
What happens next?
You receive the written report by email, with photographs and recommendations. It is yours to share with a seller, insurer, roofer or managing agent, whichever applies.
Does thermal imaging work on slate and tile roofs?
It can show heat loss and some damp, but it has more limits there. We explain what the images can and can’t tell you, and we check them with a visual inspection and moisture readings.
Practical tips
Some practical points come up on survey after survey. They apply to most roofs:
- Talk to us about the weather when booking
- Note where damp appears and after what weather
- Move stored items away from the loft hatch
- Keep dated photos of any marks on ceilings
After the visit, we put the thermal images, photographs and moisture readings into one report. We explain what each image may mean, with our recommendations. With a Premium Survey, you get the report the same day.
Have small defects in the covering fixed early. Water that gets under a covering can spread a long way before it shows.
Landlord and commercial surveys in Merton Park
We also survey roofs for businesses and commercial landlords. Larger roofs take longer.
Letting agents often book on a landlord’s behalf. Access is agreed with the tenant ahead of time.
Leave it or get it looked at?
Repeated repairs that do not stop a leak are a sign the source hasn’t been traced. Combining the camera with moisture readings can help find it, instead of trying repair after repair. In a London terrace or conversion, a roof defect rarely stays your problem alone: a blocked parapet gutter or slipped slate can let water into the flat below or the house next door. Finding it early keeps the work smaller.
One thing that affects the price is the package: Basic from £150, Standard from £250 or Premium from £400, all including VAT. The roof’s size, height and access matter as well.
Why choose Independent Roof Survey in Merton Park
- Every finding written up with photos
- Drones and thermal imaging where applicable
- Satisfaction rate of 98%
- Covered by professional indemnity and public liability insurance
What we do, step by step
Where it is relevant and can be reached safely, the roof space is checked as well as the outside. Inside, we look for staining, damp, gaps and signs of movement, as far as the space allows. The whole visit usually takes about one to two hours at most homes, and about three to four hours for a commercial roof. For a visit in Merton Park, parking and access are the things to plan: let us know about parking, the floor the property is on, any shared entrance and loft access. We then look at what can safely be seen from ground level, windows, the loft and, where it is safe, the roof itself.
- We go through the roof, the problem and the weather expected on the day.
- The roof is inspected visually from safe positions.
- We take thermal images of the roof and of the loft where we can reach it.
- We take moisture readings where the images suggest a problem.
- Each image is set beside a normal photo and explained in the report.
Preparing for the visit
- Let us know where we can park nearby
- Dig out any old roof reports or invoices
- Keep pets in another room
Arrange a survey
Booking is simple: just call 07833 053749 or send us an email, let us know about the property and we’ll explain which survey suits. The price is agreed up front.
Related advice
Should I look at the roof myself first?
If you have a loft with safe access, take a look inside. Take a torch and only step on boards or joists, checking for stains, damp wood or chinks of daylight.
What you cannot do safely is get up close. Roofs are fragile and slippery, and a fall can be serious. That’s where a survey comes in, using safe viewpoints and a drone where it applies.