Hertfordshire · London and the South East
Thermal Roof Survey in Colney Butts
Wondering about the roof at a property in Colney Butts? We carry out thermal roof surveys in Colney Butts and across Hertfordshire, with plain-English findings.
- Areas of a flat roof that may hold water
- Water that travels before it shows
- Damp where roofs meet walls and chimneys
The survey, step by step
When we arrive, we start by asking what you’ve noticed and what you’d like to know. We then inspect everything that can be seen safely, from ground level, from windows, in the roof space and by drone where applicable. Most surveys take about one to two hours for a house, rising to roughly 3–4 hours on a commercial building. For a survey in Colney Butts, we agree the time, the access and parking before the day. Weekday and weekend visits are both possible. If there are outbuildings or garages you want looked at, mention them.
- We go through the roof, the problem and the weather expected on the day.
- We look over the roof from wherever it is safe.
- We take thermal images of the roof and of the loft where we can reach it.
- 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
- Gather any invoices or paperwork from past roof work
- Clear the way to the loft hatch
- Keep pets in another room
Getting a price
To get a price for thermal roof surveys in Colney Butts, call 07833 053749 or use the contact form. The address, the type of property and what you want to find out help us give you an accurate price.
Related advice
Thermal roof survey in Colney Butts: what you get
Wet insulation under a flat roof covering holds heat for longer than dry. That means a wet area can show up as a different temperature from the rest of the roof. It helps us see how far water may have spread under the covering, something you can’t typically tell from the surface. Moisture readings are then used to check what the camera suggests. We survey loft conversions, flat roofs and pitched roof slopes, and the problems we’re asked to look at most are damp where roofs meet walls and chimneys and cold areas below the roof.
In smaller places like Colney Butts, many homes are bungalows and houses with roofs you can partly see from the ground. Chimney tops, valleys and rear slopes are where close-up or thermal images help most. Both depend on the weather on the day, as calm, dry conditions suit both. Even so, a close-up image frequently shows wear on ridges and flashings that a view from the ground misses.
Nothing in the report is left vague: if work is needed, the report says so clearly, along with how urgent it is.

- Location
- Colney Butts (WD18, WD17, WD19)
- Region
- Hertfordshire
- Price
- From £400 inc. VAT
- Report
- A written report with photos, by email
- Survey days
- Weekdays and weekends
- Insured
- PI and public liability insurance
- Call
- 07833 053749
- Page updated
- 27 October 2026
Tips from our surveys
There’s plenty you can do without going near the roof. What helps most:
- Move stored items away from the loft hatch
- Check outlets after heavy rain
- Talk to us about the weather when booking
- Do not switch the heating off before the visit
After the visit, we put the thermal images, photos and moisture readings into one report. Each image is explained in plain words, alongside what we recommend. Premium reports are sent the same day.
Keep an eye on ceilings under the roof for new stains. Catching a leak early stops insulation getting soaked.
Roof by roof
GRP fibreglass roofs
GRP surfaces can be shiny, which affects thermal readings. We take that into account and check findings with moisture readings.
Single-ply and EPDM roofs
Thin membranes can show patterns from the layers beneath. Shiny surfaces can reflect heat, so we take care reading the images.
How we price thermal roof surveys
Every roof is different, so prices are confirmed before booking. This is what makes a difference:
- How big the roof is
- The shape of the roof and its details
- House, block, shop or office
- Any need for thermal images or a drone flight
There are three survey packages: the Basic Survey from £150, the Standard Survey from £250 and the Premium Survey from £400, all inc. VAT. The price for your roof depends on its size, access and what you need to know.
Booking your survey
These details help when you get in touch:
- Your postcode, so we can check access and travel
- Any photos you have, taken from the ground or a window
- Whether there’s a loft hatch, a shared roof or tricky access
- The type of building and roof, such as pitched or flat
Our price is from £400, including VAT. The exact figure depends on the roof and the package, so phone 07833 053749 or email us with the details.
Towns and villages near Colney Butts
Other services in Colney Butts
Why it is worth a survey now in Colney Butts
A damp patch that keeps coming back typically has a cause that hasn’t been found. Combining the camera with moisture readings can help find it, rather than more guesswork. Around Colney Butts, a leak in an older house can soak into timbers and plaster, which is far harder to put right than the roof fault itself.
Simple, low roofs take less time to survey than tall or complicated ones, and the package matters as well. The price is always agreed first.
Why choose Independent Roof Survey in Colney Butts
- We hold a CAA Flyer ID and Operator ID
- More than 20 years surveying roofs
- Every finding written up with photos
- An independent look at the roof
Airspace, weather and Colney Butts roofs
If your survey includes the drone, we check the Drone Safety Map for restrictions before flying. About 3.6 miles north lies High Elms Manor, a reminder of how long the area around Colney Butts has been built on. Older roofs in the wider area can hide decades of patch repairs, so the detail matters.
For businesses in and around places such as Harlequin Centre, thermal images can show trapped moisture across a wide commercial roof. Hotels and guest houses near Colney Butts can’t easily close rooms for a leak, so it pays to find faults before guests do. The streets around a church such as St Mary's Church are often among the oldest in a place, and if you own one of the older houses nearby, tall stacks and steep slopes are easier to judge with close-up aerial photos than from the pavement.
Colney Butts is about 1 mile south of Watford, in Hertfordshire. We survey roofs in Colney Butts as part of our work across London and South East England. We cover towns and villages across Hertfordshire, from the larger towns to small villages. You can also see our page for London.
Surveys in WD18, WD17 and WD19 work the same way as everywhere else we cover. We offer thermal roof surveys to properties on York Road, Hagden Lane and Willow Lane and the roads around them. With the A4178 close by, Colney Butts is easy for us to reach for thermal roof surveys. We also cover the places around Colney Butts: Cassiobury (1 mile north), Holywell (1 mile west), Croxley Green (2 miles west), Eastbury (2 miles south) and Moor Park (2 miles south-west). Further out, we also cover Hemel Hempstead (8 miles north), St Albans (8 miles north-east), Welwyn Garden City (14 miles north-east), Harpenden (12 miles north), Hatfield (11 miles north-east) and Borehamwood (5 miles east).
Local landmarks in Colney Butts
We work in homes and buildings around Croxley Danes School, Oxhey Park and The Red Lion pub and the streets around them. There’s a railway station in Colney Butts itself: Watford High Street station. Other landmarks nearby include Watford General Hospital (within half a mile south-west) and Hertfordshire Fire Brigade Museum (0.5 miles east). Not far away are Harrow Weald Common and Tumbling Bay.
Colney Butts: your questions answered
Will you come out to Colney Butts?
Yes, Colney Butts is covered. Our area covers London and South East England, from towns to the smallest villages. The journey is planned ahead, so it helps to know about access.
Is Colney Butts in the area you cover?
We do. The survey and report are the same in Colney Butts as anywhere else, and visits run on weekdays and weekends.
When does the report arrive?
That depends on the survey you book: Basic within 48 hours, Standard in 24–48 hours and Premium the same day. The report is emailed to you.
Will you walk on the roof?
Only when it’s safe. Safety comes first, and fragile or steep roofs can’t always be walked on. We use safe viewpoints, the roof space and a drone where it applies, and the report records anything we couldn’t see.
Can you tell me if my roof has asbestos?
No. Asbestos surveys and testing aren’t part of what we do. We flag materials that could contain asbestos, such as cement sheets or soffits on pre-2000 buildings.
Will the survey show heat loss through my roof?
Gaps and thin areas of insulation can show up on the camera. It shows most clearly when it is warm inside and cold outside. Where we can reach the loft safely, we check there too.
Do you carry out surveys on Saturdays and Sundays?
We carry out surveys on weekdays and at weekends. To arrange a date, phone 07833 053749 or drop us an email.
Checking the roof from ground level
Fresh stains on ceilings or walls after rain are worth noting. Take a photo and write down when you saw it, which helps when we check the roof.
Look up at the roof after a storm, from the ground: broken slates or tiles in the garden, gaps along the ridge or loose lead are signs to note. Leave anything above ground level to a survey.