Greater London · London and the South East
Thermal Roof Survey in City of Westminster
Thermal roof surveys in City of Westminster and the rest of Greater London. Surveys run on weekdays, Saturdays and Sundays.
- Missing or slipped insulation
- Wet insulation beneath the membrane
- Areas losing heat at the eaves and junctions
Useful tips for City of Westminster property owners
A survey works best with a little help from you, before and after. Tips:
- Check from the ground or a window, never by climbing
- Note where damp appears and after what weather
- Take photos of stains as they appear, so we can compare
- Keep the report to compare against after any repair
The report explains the conditions on the day and how they affected the images. It helps you judge how firm each finding is.
Deal with small splits and lifted seams promptly. Once water gets under a membrane, it can travel far before it appears inside.
Thermal roof survey in City of Westminster: what you get
On a flat roof, wet insulation holds heat longer than dry insulation. So a wet patch can show as a warmer or cooler area on the camera. This can give an idea of how far water has travelled beneath the membrane, which is hard to judge by eye. We then check those areas with moisture readings. Typical surveys look at areas of a flat roof that may hold water and cold areas below the roof, across loft conversions, commercial roofs and flat roofs.
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 have been asked to look at. Let us know about the building and access as you book. The extra view helps most on steep slopes, tall stacks and rear additions.
The written findings come by email, ready to forward to whoever needs them. Basic reports come within 48 hours, Standard within 24–48 hours and Premium on the day.
- Where
- City of Westminster (W2, NW8, W9, SW1V)
- Region
- Greater London
- Prices
- From £400 inc. VAT
- Your report
- Written, with photos, emailed to you
- When we survey
- Weekdays and weekends
- Insured
- Professional indemnity and public liability
- Telephone
- 07833 053749
- Updated
- 27 October 2026
Also near City of Westminster
What else we do in City of Westminster
Roof by roof
GRP fibreglass roofs
Water can get through cracked GRP into the deck. We combine a visual check of cracks with the thermal images around them.
Parapets, valleys and junctions
When valley or parapet gutters overflow, water can get into walls and ceilings. We use the camera and moisture readings to help follow it.
Flying and imaging in City of Westminster
The restricted area over Hyde Park, where drone flights need permission from NATS, is about 1 mile from City of Westminster. If your survey includes the drone, we check whether the address falls inside it before flying. Inner London’s Victorian and Edwardian terraces often have Welsh slate roofs. A butterfly roof with a central valley gutter, tucked behind a parapet wall, is common on these houses. In a house like that, shared stacks, party-wall upstands and lead flashings all need looking at as far as they can be seen. A drone or thermal camera adds most on the steep, tall and hidden parts of roofs like these.
For site and facilities teams at buildings such as St Vincent's Catholic Primary School, thermal images can show where wet insulation sits under a big flat roof. For an older house near a landmark such as St Mark's, tall stacks and steep slopes are easier to judge with close-up aerial photos than from the pavement. Handel Hendrix House, about 0.3 miles east, is one of the historic houses in the wider area around City of Westminster. Aerial photos and thermal images let an old roof be checked without anyone disturbing it.
City of Westminster is about 3 miles west of London, in Greater London. Whether the building in City of Westminster is a house, a flat or a commercial unit, the roof can be surveyed on a weekday or at the weekend. City of Westminster is one of the towns and villages in Greater London where we work.
All of W2, NW8, W9 and SW1V is within our area for thermal roof surveys. We cover properties on Portman Square, Grosvenor Square and Cavendish Square and the roads around them. City of Westminster sits on or near the A4 and A5, which makes travel easy. Neighbouring places we cover for thermal roof surveys include Marylebone (1 mile north-east), Mayfair (1 mile south-east), Tyburn (1 mile west), Burlington Estate (1 mile south-east) and Connaught Village (1 mile west). Within a short drive, we also cover London (3 miles south-east), Shoreditch (3 miles east), Walthamstow (7 miles north-east), Hoxton (3 miles north-east), Whitechapel (4 miles east) and Hampstead (3 miles north-west). Being one of Greater London’s larger places, City of Westminster has every kind of building, from houses and flats to offices.
What’s near City of Westminster
Typical jobs here are in homes near LITE Regal International School, Royal Society of Medicine Library and Devonshire Arms. Other local landmarks include The St Marylebone CofE School (0.5 miles north) and Hyde Park (0.6 miles south-west). There is a railway station in City of Westminster itself: Bond Street station. Other landmarks nearby include Dunhill Museum & Archive (less than half a mile north) and Kingly Court (0.6 miles east). Green spaces nearby include Serpentine and Primrose Hill.
Leave it or get it looked at?
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. Any roof job in City of Westminster means planning around parking, neighbours and access. Knowing what’s needed early gives you time to plan it calmly.
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.
What you get with us
- 20+ years’ experience
- 98% of clients satisfied
- Visits on any day of the week
- We hold a CAA Flyer ID and Operator ID
Your questions about thermal roof surveys in City of Westminster
Is my home in City of Westminster listed or in a conservation area?
Historic England’s list shows listed buildings, and the local council can tell you about conservation areas. Listed building consent is needed for changes that affect a listed building’s special interest, and conservation areas can limit changes of roofing material.
Will parking be an issue for a roof survey in City of Westminster?
London parking needs a little planning, so let us know about permits, bays or a driveway when you book. The visit is then planned around what’s available.
Can you do a thermal survey in any weather?
Conditions on the day have a big effect on what the camera can show. A dry surface, little wind and a sunny spell beforehand help most. Our report notes the conditions and how they affected the findings.
Do you test for asbestos?
No. We can flag materials that might contain asbestos, but only a specialist asbestos surveyor can confirm it. Buildings built or refurbished before 2000 may contain it.
Can you survey a shared roof?
Yes, as long as access is agreed. Roofs over flats are often shared, so we need permission from the freeholder or managing agent. We inspect only the parts we are allowed to reach.
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.
Do you use drones?
Where it helps and it’s safe, yes. Flights depend on the weather on the day and airspace rules. We hold a CAA Flyer ID and Operator ID.
DIY checks: what’s safe
Fresh stains on ceilings or walls after rain are worth noting. Photograph them and note the date, as it helps a surveyor trace the cause.
If you have a loft with safe access, take a look inside. Use a torch and stay on the joists or boards, and look for staining, damp timber or daylight coming through.
Landlords, agents and block managers in City of Westminster
Letting agents can arrange access with tenants, at a time agreed ahead of time. We survey on any day of the week, which can make access easier.
Landlords and agents in City of Westminster book surveys as well as homeowners. A written report with photographs gives you a clear record of the roof, useful for planning maintenance.
What happens on the day
Photos are taken throughout the visit, so you can see in the report what we found and where. Close-ups come from the safest viewpoint available, including by drone where it’s applicable and the weather allows. A typical visit takes an hour or two for a house; commercial roofs usually need 3–4 hours. In City of Westminster, as in much of London, a good many properties are flats or terraces without side access, so rear slopes are viewed from windows, the loft or, where a flight is allowed, by drone. Mention any building rules, key holders or managing agents as you book.
- You let us know about the roof and any damp, leaks or cold rooms.
- The weather and surface conditions are recorded.
- A full inspection and thermal imaging are carried out together.
- We back up the thermal patterns with moisture readings.
- You get the report the same day, with an in-person consultation to follow.
How to prepare
- Let us know about parking near the property
- Unlock side gates and any roof access doors
- If you’re buying, let the agent know when we’re coming
Booking a survey
We confirm the price for your roof before you book, so you know the cost up front. Thermal roof survey starts from £400, including VAT. For a price for your roof, ring 07833 053749 or use the contact form.