Greater London · London and the South East
Ruislip Thermal Roof Survey
Thermal imaging to find moisture and heat loss patterns in a roof for Ruislip and the rest of Greater London. Surveys run on weekdays and at weekends.
- Thin or uneven insulation in the roof
- Moisture around outlets and upstands
- Ceilings that feel colder in places
Thermal roof surveys for homes and businesses in Ruislip
Wet insulation under a flat roof covering holds heat for longer than dry. So a wet patch can show as a warmer or cooler area on the camera. 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. Typical surveys look at areas losing heat at the eaves and junctions and thin or uneven insulation in the roof, on insulated roof spaces, flat roofs and ceilings below the roof.
London’s roofs are often hard to see from the street: butterfly roofs behind parapets, dormer tops and flat roofs over back additions. Drone photos and thermal images can show parts of a roof that are hard to reach safely. The weather decides the day: both drones and thermal cameras need the right conditions. What a thermal image shows is temperature, so anything that looks like moisture is checked with a meter.
The report does not just list problems. For each finding, it explains what it is, why it matters and what we’d recommend, so you can plan your next steps.
- Location
- Ruislip (HA4, HA5, HA6, UB5)
- Region
- Greater London
- Cost
- From £400 inc. VAT
- Your report
- Emailed report with photos and recommendations
- When we survey
- Weekdays and weekends
- Insured
- Professional indemnity and public liability
- Phone
- 07833 053749
- Updated
- 27 October 2026
How the survey works
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. All in, the survey typically takes about 1–2 hours for most homes, plus time to check any thermal findings with moisture readings. In Ruislip, visits are available on weekdays and at weekends. London parking is often by permit or pay-and-display, so it helps to know what’s near you, and to clear a path to the loft hatch. A back bedroom window can be the best vantage point for a rear addition, so we may ask to use one.
- We start by discussing the roof, any signs of damp and how the weather may affect the images.
- The roof is inspected visually from safe viewpoints.
- We take thermal images of the roof to pick up temperature patterns.
- Any patterns of interest are checked with moisture readings where we can reach them.
- We write up the thermal images alongside ordinary photos and recommendations.
Getting ready for the survey
- Find any records of previous roof work
- Let us know about parking near the property
- Make sure pets are kept safely away
Booking a survey
Every survey is priced before it’s booked, so you know where you stand. Our price is from £400, including VAT. For a price for your roof, call 07833 053749 or email us.
Related advice
What we’re asked to look at in Ruislip
Once a leak has been fixed, people often 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 often include:
- Water that travels before it shows
- Ceilings that feel colder in places
- Stains that keep coming back
- Areas of a flat roof that may hold water
For a London address like Ruislip, it is useful to know about controlled parking before the day.
Before booking any roof surveyor
- How they’ll see the roof: from the ground, the loft, the roof or by drone
- What the survey will not cover
- Their track record with similar roofs
- Will the report include photos?
DIY checks: what’s safe
After strong wind, take a look from the pavement or garden: pieces of tile or slate on the ground, a gap in the ridge or a lifted flashing are all worth noting. Leave anything above ground level to a survey.
The one thing to avoid is getting up close. Slates, tiles, flat roofs and rooflights can give way, and falls from height are serious. That’s where a survey comes in, using safe viewpoints and a drone where it applies.
Useful tips for Ruislip property owners
Over many surveys, some simple habits stand out:
- Photograph damp patches with the date
- Check from ground level or a window, never by climbing
- Keep a record of when stains appear
- Keep the report to compare against after any repair
Where a pattern cannot be confirmed, the report says what could help, such as electronic leak detection or opening up a small area.
After repairs or a new covering, a later survey can confirm things are dry, when the conditions are suitable.
Honest limits
This isn’t a RICS building survey, a structural engineer’s report or an asbestos survey. It also has these limits:
- A formal energy assessment
- A structural engineer’s assessment
- Hidden layers that need to be opened up to check
Not sure which survey suits your roof? You can phone 07833 053749 or email us and we will tell you. What a survey covers and doesn’t.
Roof types and parts we check
- Insulated roof spaces
- Commercial roofs
- Loft conversions
- Pitched roof slopes
- Ceilings below the roof
- Flat roofs
Ruislip questions
Can you fly a drone over a roof in Ruislip?
It depends on the exact address and the weather on the day. Ruislip is about 2 miles from RAF Northolt, so the Drone Safety Map is checked for restrictions around it before we fly. 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. High wind or heavy rain also stops a small drone flying.
Does a conservation area affect roof work in Ruislip?
We cannot confirm that for you, but Historic England’s list and your council can. A change of roofing material may need consent in either case, and councils can also use Article 4 directions.
What’s in the report?
Written findings with photographs, covering the condition of the roof, the defects we found and what we recommend. Standard adds moisture detection and a structural check; Premium adds thermal imaging, drone inspection where applicable and structural analysis.
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, and we check them with moisture readings.
Is this an asbestos survey?
No. We can flag materials that might contain asbestos, but confirming it is a job for a specialist asbestos surveyor. Buildings built or refurbished before 2000 may contain it.
Do you survey roofs on blocks of flats?
Yes, as long as access is agreed. The roof of a block or converted house is frequently shared, so the freeholder or managing agent needs to agree access. We can only inspect what we’re given access to.
Which survey includes thermal imaging?
It comes with our Premium Survey, which starts from £400. The Premium Survey also covers a full inspection, drone inspection where applicable, structural analysis and a report on the same day.
Why get it checked now?
The longer moisture sits in a roof, the more it can affect timbers and finishes below. Looking now, while the damage may still be limited, keeps more options open. 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. Dealing with it early is far less disruptive.
Price depends partly on 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.
What you get with us
- 5,000+ surveys completed
- Thermal imaging and drone inspection where they help
- Every finding written up with photos
- Prices that include VAT
What a thermal roof survey looks like in Ruislip
The wider area around Ruislip has a long history of building, with Ickenham Hall about 1.7 miles south-west. On older houses around here, roofs frequently carry the marks of earlier repairs, from replaced slates to new lead, and a listed home or one in a conservation area may need consent for changes of material. RAF Northolt is about 2 miles from Ruislip. Where the drone is part of the survey, the Drone Safety Map is checked for restrictions first.
If you live in an older home near St Lawrence, thin or patchy insulation under an old roof often shows up clearly on a thermal image. If you look after a shop, office or commercial unit, for example near St. George's Shopping Centre, large commercial roofs are often easiest to see from above or with a thermal imager.
Ruislip is about 12 miles west of City of Westminster, in Greater London. We survey roofs in Ruislip and the surrounding area as part of our work across London and the South East. Ruislip is one of the places in Greater London we cover for thermal roof surveys. We also survey roofs in London.
Here we cover the HA4, HA5, HA6 and UB5 postcode area for thermal roof surveys. We offer thermal roof surveys to properties on High Street, The Uplands and Hawtrey Drive and the roads around them. You will find Ruislip on the B466 and B472, so it is easy for us to get to. Close by, we survey roofs in Ruislip Manor (1 mile south), Ruislip Gardens (1 mile south), Newyears Green (2 miles west), Ickenham (2 miles south-west) and Hillingdon (3 miles south-west). Larger places within reach include London (14 miles east), City of Westminster (12 miles east), Marylebone (12 miles east), Kensington (10 miles south-east), St Pancras (13 miles east) and Shoreditch (15 miles east).
What’s near Ruislip
Around Ruislip, our work takes us to homes and buildings near Heathfield School, Bishop Ramsey School and Church Field Gardens. Ruislip’s nearest station is West Ruislip station, roughly 1.3 miles west. Well-known places in the area include Heath Robinson Museum (1.5 miles north-east) and St. George's Shopping Centre (3 miles east). The countryside around Ruislip includes Horse Shoe Bay and Northala Fields.