Greater London · London and the South East
Westminster Thermal Roof Survey
Thermal roof surveys across Westminster, with over 20 years’ experience behind it. Every survey ends with a written report and photographs.
- Possible trapped moisture under a flat roof covering
- Stains that keep coming back
- Thin or uneven insulation in the roof
Leave it or get it looked at?
A poorly insulated roof loses heat year after year. The camera can point to gaps and thin areas in the insulation, so improvements can go where they’re needed. Any roof job in Westminster means planning around parking, neighbours and access. Knowing what’s needed early gives you time to plan it calmly.
Prices start from £400, including VAT. What you pay depends on how big and how high the roof is, how it can be seen safely and the package you choose.
Why book with us
- A photo-illustrated written report
- More than 5,000 surveys completed
- Surveys on weekdays, Saturdays and Sundays
- Drones and thermal imaging where it applies
Take a look at our cost guide and what we found on two real jobs.
Thermal roof surveys for homes and businesses in Westminster
Thermal imaging is useful when a damp patch has no clear cause. Leaks often run along a roof before they appear on a ceiling, and temperature patterns can help us trace where it may have come from. The images are used alongside a visual inspection and moisture readings, so no conclusion rests on one method alone. We survey ceilings below the roof, pitched roof slopes and flat roofs, and common reasons people get in touch are damp where roofs meet walls and chimneys and moisture around outlets and upstands.
London airspace is busy and tightly controlled: 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. Before a drone goes up in Westminster, the address is checked against all of them, and permission is never taken for granted.
You can share the report with anyone who needs it: a seller or estate agent, an insurer, a roofer, a builder or a managing agent.
- Place
- Westminster (SW1P, W1J, SW1V)
- Region
- Greater London
- Cost
- From £400 inc. VAT
- Reports
- Emailed report with photos and recommendations
- Appointments
- Weekdays, Saturdays and Sundays
- Insurance
- PI and public liability insurance
- Call
- 07833 053749
- Updated
- 27 October 2026
Other services in Westminster
Flying and imaging in Westminster
Inner London’s Victorian and Edwardian terraces frequently have Welsh slate roofs. From the street you may see only a parapet, with a butterfly roof and a valley gutter behind it draining to the back. Lead flashings, party-wall upstands and shared chimney stacks are typical of these houses, if yours is one of them. A drone or thermal camera adds most on the steep, tall and hidden parts of roofs like these. Westminster is about 1 mile from the edge of the flight restriction zone around London Heliport in Battersea. If the drone is used for your survey, we check the exact boundary for the address before flying.
If you run a hotel or guest house in or near Westminster, a roof problem can mean rooms out of use, so it is worth knowing the roof’s condition. The streets around a church such as Christ Church are often among the oldest in a place, and if yours is one of the older homes nearby, thin or patchy insulation under an old roof often shows up clearly on a thermal image. For site and facilities teams at buildings such as Harris Westminster Sixth Form, a drone or thermal camera can show a large roof in a single visit.
Westminster is about 1 mile south-east of City of Westminster, in Greater London. Houses, flats, blocks and commercial buildings in Westminster can all book thermal roof surveys, with a written report and photographs every time. Westminster is one of the towns and villages in Greater London we cover for thermal roof surveys.
Here we cover the SW1P, W1J and SW1V postcode area for thermal roof surveys. Whether your property is on Eaton Lane, Wilton Road and Castle Lane or anywhere close by, we can survey it. You’ll find Westminster on the A4 and A202, which makes it straightforward to reach. We also cover the places around Westminster: Millbank (1 mile north), Victoria (1 mile south-west), Pimlico (1 mile south), Vauxhall (1 mile south-east) and Lambeth (1 mile south-east). Larger places within reach include Kensington (3 miles west), Shoreditch (3 miles north-east), Walthamstow (8 miles north-east), Hoxton (3 miles north-east), Whitechapel (3 miles north-east) and Hampstead (4 miles north-west).
Local landmarks in Westminster
Around Westminster, our work takes us to homes and buildings near St Matthew's School, St James's Park and Blewcoat School, among other places. Also close by are London Library (0.6 miles north) and Grafton Arms (under half a mile south). For rail, the closest station is London Victoria station, about 0.6 miles south-west. Other landmarks nearby include Westminster Hospital (within half a mile east) and The Crime Museum (within half a mile south). Green spaces nearby include Barnsbury Wood and St. James's Park Lake.
What we do, step by step
Where it is relevant and can be reached safely, the loft space is checked as well as the outside. In the loft, the signs we look for are staining, damp, daylight and sagging. The whole visit normally takes between one and two hours for a house, or half a day or so for a commercial building. In converted houses and mansion blocks, the loft hatch is often on a shared landing. Where that is the case, access needs agreeing with whoever controls that landing. Otherwise, the visit in Westminster runs like any other.
- We talk through the roof, any damp or leaks, and the weather expected on the day.
- We check the roof from the ground, from windows and from the roof itself where it is safe.
- A thermal camera records how the surface temperature varies across the roof.
- We check the patterns that stand out with moisture readings where there’s safe access.
- The report sets out the images, what they suggest and what we recommend.
Before we arrive
- Make a note of anything you’d like us to look at
- Agree roof access with the managing agent if it is shared
- If it is not your property yet, arrange access through the agent
Book a survey
When you are ready to go ahead, call 07833 053749 or use the contact form. We will suggest a package, agree the price and find a date.
Related advice
What affects the price in Westminster
All our prices include VAT. The things that change the price are:
- How complicated the roof is, with its valleys, chimneys and parapets
- Extra roofs, like extensions, dormers or garages
- The roof’s overall size
- Any need for thermal images or a drone flight
Larger roofs, taller buildings and commercial roofs take longer, so the price reflects that. You will know the figure before booking.
Booking your survey
When you call or email, these details help:
- The address and postcode of the property
- Dates you are working to, such as exchange
- What kind of property and roof it is
- Whether there is a loft hatch, a shared roof or tricky access
If you’re buying, it is useful to book soon after your offer is accepted, so you have the findings in time to act on them before you exchange. Otherwise, simply ring 07833 053749 or drop us an email whenever suits you.
Westminster questions
Is my home in Westminster listed or in a conservation area?
The council and Historic England’s list are the places to check. It’s worth checking before planning roof work, as both can affect what’s allowed.
Can parking be tricky for a visit in Westminster?
Usually it’s manageable with a little notice. Let us know the parking rules on your street and we’ll work around them.
Do you climb onto every roof?
Only if it is safe. We inspect whatever is safely visible: from ground level, from windows, from inside the loft space, from the roof where it’s safe and by drone where it applies. Anything we cannot see is noted in the report.
Do you use drones?
Where it helps and it’s safe, yes. Flights depend on the weather on the day and airspace rules, including flight restriction zones near airports. We hold a CAA Flyer ID and Operator ID.
Do you survey roofs on blocks of flats?
Yes, as long as access is agreed. Roofs over flats are often shared, so we need permission from the building owner or managing agent. We can only inspect what we’re given access to.
Are you insured?
We are covered by professional indemnity and public liability insurance.
Do you work in Westminster?
Yes. We cover Westminster and the rest of Greater London, as part of our work across London and the South East. To book, phone 07833 053749 or send us an email.
How the survey changes by roof type
Parapets, valleys and junctions
Damp at junctions can be hard to see by eye. We combine a close visual check with the thermal images.
Felt and asphalt flat roofs
On felt and asphalt flat roofs, wet insulation can show as a temperature difference across the surface. Moisture readings are used to check them.
Useful tips for Westminster property owners
Over many surveys, some simple habits stand out as worth the effort:
- Clear leaves from outlets and gutters each autumn
- Take photos of stains as they appear, so we can compare
- Heat the home normally on the days before
- Remember the conditions on the day affect the results
After the visit, we put the thermal images, photos and moisture readings into one report. Each image is explained in plain words, with our recommendations. With a Premium Survey, you get the report the same day.
Keep an eye on ceilings under the roof for new stains. Catching a leak early stops insulation getting soaked.
What a thermal roof survey doesn’t cover
Without opening up the roof, some things stay hidden, so a survey has limits:
- Hidden layers that need to be opened up to check
- Seeing water directly, as the camera shows temperature, not moisture
- A formal energy assessment
Not sure which survey suits your roof? You can phone 07833 053749 or email us and we will tell you. The full list of what we check.
Roof types and parts we check
- Commercial roofs
- Pitched roof slopes
- Flat roofs
- Loft conversions
- Ceilings below the roof
- Insulated roof spaces