Greater London · London and the South East
Thermal Roof Survey in St Helier
Thermal imaging to find moisture and heat loss patterns in a roof for St Helier and the rest of Greater London. Surveys run on weekdays and at weekends.
- Areas of a flat roof that may hold water
- Damp patches with no obvious cause
- Areas losing heat at the eaves and junctions
Thermal roof survey in St Helier
A thermal camera can help when the cause of damp is not obvious. Leaks often run along a roof before they appear on a ceiling, and the camera can show patterns that help us follow it. The images are used alongside a visual inspection and moisture readings, so the findings do not rely on the camera alone. Typical surveys look at ceilings that feel colder in places and damp that repairs haven’t cured, across ceilings below the roof, flat roofs and pitched roof slopes.
London roofs sit shoulder to shoulder in terraces and blocks, so privacy and neighbours matter as much as the view. We take care to focus on the roof we’ve been asked to look at. Mention access, height and anything unusual about the building when you book. Steep slopes, tall chimneys and rear additions are where the extra view helps most.
Pictures do a lot of the work in our reports, so you can see each defect rather than just read about it. Anything out of sight on the day is listed as such.
- Where
- St Helier (SM5, SM4, SM1)
- Region
- Greater London
- Cost
- From £400 inc. VAT
- Reports
- Emailed report with photos and recommendations
- Survey days
- Monday to Sunday, daytime
- Insurance
- Professional indemnity and public liability
- Telephone
- 07833 053749
- Page updated
- 27 October 2026
Why it’s worth a survey now in St Helier
Thermal images can suggest the extent of wet areas without cutting into the roof. It helps when deciding whether to patch an area or replace the roof. Many older London roofs have only old felt under the slates, or no underlay at all, so a slipped slate can soon mean water inside. Left alone, that means wet timbers and plaster, which is a far bigger job than the roof fault itself.
For a price for your roof in St Helier, call 07833 053749 or email us and tell us about the roof. We will confirm the figure before booking.
What you get with us
- Surveys on weekdays, Saturdays and Sundays
- Two decades and more of roof surveys
- A written report with photos
- Drones and thermal imaging where applicable
See what a roof survey costs or what we found on two real jobs.
What a thermal roof survey looks like in St Helier
Nonsuch Mansion, about 2.6 miles south-west, is one of the historic houses in the wider area around St Helier. On older houses around here, roofs often 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. Alongside Victorian and Edwardian terraces, outer London has a great many interwar semis, frequently with hipped roofs of clay or concrete tiles. If your home in St Helier is one of them, bay roofs, hips and later dormers each have their own details. Many roofs like these can’t be judged properly from the pavement, and that is where a view from above or a thermal image earns its place.
If you run a business near Centrale Croydon, big, flat commercial roofs are where close-up aerial shots and thermal images help most. For a London address like St Helier, it’s useful to know about controlled parking before the day.
St Helier is about 3 miles south-east of Wimbledon, in Greater London. We carry out thermal roof surveys in St Helier for houses, flats, blocks and commercial buildings. Across Greater London, we cover St Helier and the places around it. There is also a page for London.
All of SM5, SM4 and SM1 is covered for thermal roof surveys. Local streets include Kelso Road, Wrythe Lane and Whitby Road. If you’re just outside St Helier, we cover Rosehill (1 mile north-east), Benhilton (1 mile south-west), The Wrythe (1 mile south-east), Carshalton (1 mile south-east) and Sutton (1 mile south). Larger places within reach include London (9 miles north-east), City of Westminster (9 miles north), Marylebone (9 miles north), Kensington (8 miles north), St Pancras (10 miles north) and Shoreditch (11 miles north-east).
Near you in St Helier
Around St Helier, our work takes us to homes and buildings near Greenshaw High School, The Cricketers Inn and Merton College, among other places. For rail, the closest station is Sutton Common station, about 0.8 miles south-west. Well-known places in the area include St Helier Hospital (less than half a mile south) and Chessington Castle Hill (5 miles west). Green spaces nearby include Bennett's Hole and Duppas Hill.
Surveys for landlords and agents in St Helier
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, which helps with budgets and planning.
Any of our surveys can be booked by landlords, agents and building managers in St Helier. For a price for a let property or a block, call 07833 053749 or use the contact form.
How it works
A survey visit follows a simple order: we listen to what’s been worrying you, inspect the roof from each safe vantage point, photograph what we find and record our findings for the written report. It usually takes an hour or two for most homes, plus time to check any thermal findings with moisture readings. From the street, a London terrace typically shows only its front slope or parapet, so a visit in St Helier moves between viewpoints: the pavement, upstairs windows, the loft and any safe spot at the back. If other people live in the building, tell us who can let us into the shared parts.
- First we discuss the roof, any damp and the forecast for the visit.
- The roof is inspected visually from safe positions.
- Thermal images are taken across the roof and, where there is safe access, in the loft.
- Patterns that stand out are checked with moisture readings.
- The report pairs each thermal image with a photo and explains what it suggests.
Getting ready for the survey
- Have any questions written down, so nothing gets missed
- Keep pets in another room
- If it is not your property yet, arrange access through the agent
How to book
For a price for thermal roof surveys in St Helier, call 07833 053749 or email us. The address, the type of property and what you want to find out help us price the survey accurately.
Read more
Nearby places to St Helier
Other services in St Helier
Questions from St Helier
Can parking be tricky for a visit in St Helier?
Parking in St Helier, as in most of London, takes a little planning: a visitor permit or a bay close to the door helps a lot, so mention what’s available when booking.
Can you fly a drone over a roof in St Helier?
That depends on where the roof is and on the weather. 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. Strong wind or heavy rain also stops a small drone flying.
Do I need to be at home?
It depends on what we need to see. For inside areas and the loft space, someone has to give us access; we’ll agree the details when booking.
Does the report include photos?
Yes. The report includes photos of what we found, so you can see each point for yourself.
Will you walk on the roof?
Not unless it is safe. Most of what we need can be seen from safe viewpoints, the loft and, where applicable, a drone, and anything out of sight is recorded in the report.
Does this replace a RICS home survey?
No. Our survey is a roof survey, not a RICS Level 2 or Level 3 survey of the whole building. It focuses on the roof and can sit alongside a RICS survey.
Do you work in St Helier?
Yes. St Helier is part of the area we cover, and the service is the same as everywhere else we work.
How the survey changes by roof type
GRP fibreglass roofs
GRP roofs are laid over timber boards, so trapped moisture can affect the deck. The camera can help show where to look.
Loft insulation
Heat loss shows most clearly when it is warm inside and colder outside. Our report notes how the conditions affected the images.
When to book a survey in St Helier
Once a leak has been fixed, people frequently ask whether the roof is still wet. A thermal survey with moisture readings can show whether wet areas remain, given suitable conditions on the day.
Problems we come across frequently include:
- Wet insulation beneath the membrane
- Leaks far from where the stain appears
- Damp around chimneys and parapets
- Areas losing heat at the eaves and junctions
For site and facilities teams at buildings such as Tweeddale Primary School, big roofs are where photos from the air and thermal images show the most at once.
Before booking any roof surveyor
- What exactly goes into their report
- How they plan to inspect the roof safely
- Whether any drone flown is registered with the CAA
- Whether VAT is added on top
What a survey costs
We confirm the price for your survey before booking. These are the things that affect it:
- How complicated the roof is, with its valleys, chimneys and parapets
- Commercial roofs and larger buildings
- How tall the building is and how easy the roof is to see
- The package you choose: Basic, Standard or Premium
What a survey costs comes down to the roof itself: its size, its height, how many sections it has and how it can be reached and seen safely. Prices start from £400, including VAT.
What to let us know when you contact us
When you call or email, these details help:
- The type of building and roof, like pitched or flat
- Any deadline, such as an exchange date
- Any marks or damp showing indoors
- The property’s address and postcode
Getting a price is simple: just phone 07833 053749 or use the contact form and give us some details about the property and we will recommend the right survey. We confirm the price before anything is booked.