Greater London · London and the South East
Thermal imaging roof survey in Yiewsley, Greater London
Wondering about the roof at a property in Yiewsley? We carry out thermal roof surveys in Yiewsley and across Greater London, with plain-English findings.
- Cold areas below the roof
- Thin or uneven insulation in the roof
- Wet insulation beneath the membrane
How a thermal roof survey works in Yiewsley
Flat roofs over extensions, garages, flats and commercial buildings are where thermal imaging often helps most. It can show patterns that point to trapped moisture under the membrane. On pitched roofs, slates and tiles over a ventilated space can hide what’s below, so we also look from the loft where we can reach it safely. If you’re worried about possible trapped moisture under a flat roof covering and gaps in loft insulation, we can find out what’s behind it, on pitched roof slopes, commercial roofs and loft conversions alike.
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 Yiewsley is checked before any drone flight, and permission is never taken for granted.
How fast the report arrives depends on the package: Basic within 48 hours, Standard in 24–48 hours and Premium the same day.
- Where
- Yiewsley (UB5, UB4, UB1)
- Region
- Greater London
- Cost
- From £400 inc. VAT
- Your report
- A written report with photos, by email
- Survey days
- Weekdays, Saturdays and Sundays
- Cover
- PI and public liability insurance
- Phone
- 07833 053749
- Page updated
- 27 October 2026
Landlords, agents and block managers in Yiewsley
Shared roofs need a little more planning: we need access agreed with whoever owns or manages the building. Tell us about it as you book and we will plan the survey around it.
Letting agents and landlords in Yiewsley book surveys as well as householders. The report gives you a dated record of the roof, with photographs.
What happens if roof problems are left?
A damp patch that keeps coming back usually has a cause that hasn’t been found. Thermal imaging with moisture readings can help narrow it down, instead of trying repair after repair. Many older London roofs have only old felt under the slates, or no underlay at all, so once the slates or flashings let water past, little stops it reaching ceilings. Left unchecked, water soaks into timber and plaster and the damage spreads.
Our price is from £400, including VAT. Packages run from Basic at £150 through Standard at £250 to Premium at £400, including VAT, and we will tell you which fits.
What you get with us
- Visits on any day of the week
- 98% of customers satisfied
- Thermal imaging and drones used where they help
- PI and public liability insurance
See our cost guide and two real surveys.
Tips from our surveys
Small things make a difference, both for the survey and for the roof itself. Our tips:
- Clear a path to the loft hatch before we arrive
- Let us know where and when you’ve seen damp or stains
- File the images with your roof records
- Clear leaves from outlets and gutters each autumn
Once we’ve been, the thermal images, photos and readings go into a single report. We explain what each image may mean, alongside what we recommend. With a Premium Survey, you get the report the same day.
Have small defects in the covering fixed early. Once water gets under a membrane, it can travel far before it appears inside.
Questions from Yiewsley
Will parking be an issue for a roof survey in Yiewsley?
It depends on the street. If Yiewsley has controlled parking where you are, a visitor permit is the easiest answer.
Are there drone restrictions around Yiewsley?
It depends on the exact address and the weather on the day. The flight restriction zone around Heathrow Airport comes within about 2 miles of Yiewsley. The exact boundary is checked for each address before any flight, and a roof inside it needs permission before we fly. RAF Northolt is about 2 miles away, so we check the Drone Safety Map for restrictions before any flight. London’s airspace includes flight restriction zones around Heathrow, London City Airport and London Heliport, and 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.
How does a thermal imaging roof survey work?
The images show how warm or cool each part of the surface is. Unusual patterns can point to trapped water, gaps in insulation or heat escaping, which we then check with moisture readings.
How experienced are you?
Over 5,000 surveys so far, across 20+ years of surveying roofs, with 98% customer satisfaction.
Will the survey show heat loss through my roof?
It can show temperature patterns that point to missing or thin insulation. It shows most clearly when it is warm inside and cold outside. Where we can reach the loft safely, we check there too.
Do I need to be at home?
It depends on what we need to see. For inside areas and the roof space, someone has to give us access; we’ll agree the details when booking.
Do you cover Yiewsley?
Yes, we do. Yiewsley is part of the area we cover.
Towns and villages near Yiewsley
What else we do in Yiewsley
Drones, thermal imaging and Yiewsley roofs
With Northolt Manor about 1.4 miles north-east, Yiewsley sits in an area with a long building history. If your house is among the older ones, expect a mix of original materials and later repairs on the roof, 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, often with hipped roofs of clay or concrete tiles. Hips, bay roofs and later loft conversions are typical of those semis, if your home is one of them. Where a roof is steep, tall or hard to see from ground level, drone photos and thermal images add detail.
For site and facilities teams at buildings such as Brookside Primary School, a drone or thermal camera can show a large roof in a single visit. The streets around a church like St Joseph the Worker & Dovetail Centre are often among the oldest in a place, and if your house is among the older ones nearby, thin or patchy insulation under an old roof often shows up clearly on a thermal image.
Yiewsley is about 2 miles north-east of Hayes, in Greater London. From houses to flats and shops in Yiewsley, we can survey the roof. Our area takes in places right across Greater London. London is in our area too.
Here we cover the UB5, UB4 and UB1 postcode area for thermal roof surveys. If you need a thermal roof survey at a property on Owen Road, Friar Road and Maple Road or a nearby road, we can help. We also cover Yeading (1 mile north), Dormers Wells (2 miles south-east), Northolt (2 miles north-east), Southall (2 miles south) and South Ruislip (2 miles north). Further out, we also cover London (13 miles east), City of Westminster (10 miles east), Marylebone (11 miles east), Kensington (8 miles east), St Pancras (12 miles east) and Shoreditch (13 miles east).
Local landmarks in Yiewsley
Around Yiewsley, our work takes us to homes and buildings near White Hart Public House, Northala Fields and Barnhill Community High School. Yiewsley’s nearest station is Southall station, about 1.8 miles south. Other landmarks nearby include Hayes Cottage Hospital (1.5 miles south-west) and The Chimes (3.8 miles west). The countryside around Yiewsley includes Northala Fields and Yeading Brook Meadows.
When to book a survey in Yiewsley
People often book a thermal survey when a damp patch has no obvious cause. Water can travel under a roof covering or along timbers before it shows inside. Temperature patterns can help narrow down where to look.
Problems we come across often include:
- Possible trapped moisture under a flat roof covering
- Damp where roofs meet walls and chimneys
- Water that travels before it shows
- Ceilings that feel colder in places
Parking in Yiewsley, as in most of London, takes a little planning: a visitor permit or a nearby bay makes the day easier.
What to check before booking
- If they fly a drone, whether they hold a CAA Flyer ID and Operator ID
- Which limits apply to the survey
- Is VAT included in the price?
- What experience they bring
The survey, step by step
You do not need to do much on the day. Point out anything you’ve noticed, such as stains, drips or loose pieces, and we’ll get on with the inspection. A typical survey takes an hour or two at a house, including the thermal images, and around 3–4 hours for a commercial roof. In Yiewsley, as in much of London, lots of 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. If the building has a managing agent or access rules, let us know when you book.
- We go through the roof, the problem and the weather expected on the day.
- The roof is inspected visually from safe positions.
- Thermal images are taken across the roof and, where there’s safe access, in the loft.
- Patterns that stand out are checked with moisture readings.
- Each image is set beside a normal photo and explained in the report.
How to prepare
- Tell us about any leaks, stains or damp patches you know of
- Have any questions written down, so nothing gets missed
- Gather any invoices or paperwork from past roof work
How to book
Unsure which package suits your roof? It’s easiest to call 07833 053749 or use the contact form and describe the roof and why you want it surveyed. We will talk you through the options and what they cost.
Read more
Honest limits
We only report everything that’s safely in view on the day, so there are some things a survey cannot cover:
- The condition of timbers we can’t see
- A formal energy assessment
- Structural calculations, which need a structural engineer
Not sure which survey suits your roof? You can call 07833 053749 or drop us an email and we’ll tell you. What our survey covers.
What this survey covers
- Ceilings below the roof
- Flat roofs
- Pitched roof slopes
- Commercial roofs
- Loft conversions
- Insulated roof spaces