Hertfordshire · London and the South East
Thermal imaging roof survey in Broad Colney, Hertfordshire
A careful look at the roof at your property in Broad Colney, with photos and a written report.
- Missing or slipped insulation
- Leaks far from where the stain appears
- Water getting in at parapets and stacks
When you need someone else
Without opening up the roof, some things stay hidden, so a survey has limits:
- A formal energy assessment
- Reliable images in rain, strong wind or on a wet roof surface
- Hidden layers that need to be opened up to check
If in doubt, ring 07833 053749 or use the contact form and we’ll recommend the right survey before booking. The full list of what we check.
Roofs we survey in Broad Colney
- Flat roofs
- Ceilings below the roof
- Pitched roof slopes
- Loft conversions
- Insulated roof spaces
- Commercial roofs
Thermal roof surveys for homes and businesses in Broad Colney
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. We then check those areas with moisture readings. If you are worried about heat escaping through the roof and missing or slipped insulation, we can find out what’s behind it, on pitched roof slopes, insulated roof spaces and ceilings below the roof alike.
Somewhere as small as Broad Colney, older roofs are frequently steep and partly hidden by trees or outbuildings. Close-up drone photos and thermal images help show what can’t be reached safely. Weather and airspace are looked at before the visit. Steep slopes and tall chimney stacks are where a close-up view adds the most.
The report records the roof as we found it on the day. It’s useful right away, and a good reference for later, for example when you want to check whether anything has changed.
- Place
- Broad Colney (AL2)
- Region
- Hertfordshire
- Cost
- From £400 inc. VAT
- Reports
- Written, with photos, emailed to you
- When we survey
- Monday to Sunday, daytime
- Cover
- PI and public liability insurance
- Phone
- 07833 053749
- Last updated
- 27 October 2026
Roof by roof
Single-ply and EPDM roofs
Thin membranes can show patterns from the layers beneath. Reflections from shiny surfaces can affect readings, which we allow for.
GRP fibreglass roofs
GRP roofs are laid over timber boards, so trapped moisture can affect the deck. Thermal imaging can suggest where that may be happening.
Tips that help
Nothing here needs a ladder. Our suggestions:
- Check from the ground or a window, never by climbing
- Let us know where and when you’ve seen damp or stains
- Keep the heating on as usual before a heat loss survey
- Make sure the loft can be reached safely
We note the weather and surface conditions, and how they may have affected the results. That way you know how much weight to give each finding.
Make sure loft insulation covers the whole area and hasn’t been disturbed. Gaps often appear after work in the loft.
Airspace, weather and Broad Colney roofs
High Elms Manor, about 4.1 miles west, is one of the historic houses in the wider area around Broad Colney. Older homes in the wider area often have features worth a closer look, such as lead valleys, tall stacks and roofs that have been patched over the years, and a listed home or one in a conservation area may need consent for changes of material. In this part of the South East, older roofs are mostly slate or clay tile and many newer ones concrete tile. Many roofs like these can’t be judged properly from the pavement, and that’s where a view from above or a thermal image earns its place.
For businesses in and around places such as The Maltings, large commercial roofs are often easiest to see by drone or thermal camera. For an older house near a landmark such as Church of St Peter, tall stacks and steep slopes are easier to judge with close-up aerial photos than from the pavement. If you look after a building such as Saint Bernadette Catholic Primary School, big roofs are where photos from the air and thermal images show the most at once.
Broad Colney is about 3 miles south-east of St Albans, in Hertfordshire. We carry out thermal roof surveys in Broad Colney for houses, flats, blocks and commercial buildings. Broad Colney is one of the towns and villages in Hertfordshire where we work. You can also see our page for London.
Postcode districts we cover here for thermal roof surveys: AL2. Other places close to Broad Colney include London Colney (1 mile north), Shenleybury (1 mile south-east), Tyttenhanger (2 miles north), Sleapshyde (3 miles north-east) and Colney Heath (3 miles north-east). Further out, we also cover Watford (6 miles south-west), Hemel Hempstead (7 miles west), Stevenage (14 miles north), St Albans (3 miles north-west), Welwyn Garden City (7 miles north-east) and Harpenden (7 miles north).
Near you in Broad Colney
We work in homes and buildings around The White Lion pub and Samuel Ryder Academy, among other places. Broad Colney’s nearest station is Park Street station, about 1.9 miles north-west. Well-known places in the area include Hilfield Castle (4.5 miles south) and Radlett and District Museum (2.5 miles south). The countryside around Broad Colney includes Verulamium Lake and Broad Colney Lakes.
For landlords and managing agents
Shared roofs need a little more planning: we need access agreed with whoever owns or manages the building. Let us know about it as you book and we will plan the visit with that in mind.
If you own several properties, you can book surveys for several addresses. To arrange surveys for several addresses, call 07833 053749 or drop us an email with the addresses.
Broad Colney questions
Do you cover smaller places like Broad Colney?
Yes. Broad Colney is within the area we cover, which takes in towns, villages and rural addresses. We cover the whole of London and South East England. Let us know about access, parking and anything unusual about getting there when booking.
Is my home in Broad Colney listed or in a conservation area?
For listing, use Historic England’s list; for conservation areas, ask the council. It matters most if you are planning to re-roof in a different material.
Does this replace a RICS home survey?
No. It’s a specialist roof survey, not a RICS Level 2 or Level 3 building survey. It focuses on the roof and can sit alongside a RICS survey.
Can you use a thermal camera on a sloping roof?
It can show heat loss and some damp, but it has more limits there. Our report is clear about what can be read from them, and back them up with a visual inspection and moisture readings.
Will the camera show exactly where the water is?
The camera does not see water itself. Wet insulation holds heat longer than dry, so it can stand out, but we check each finding with moisture readings.
Can you survey at the weekend?
Surveys run on any day of the week. To arrange a date, ring 07833 053749 or send us an email.
Is it a structural engineer’s report?
No. We point out what can be seen, like sagging or deflection, but we do not carry out calculations or give an engineer’s opinion. If we think you need an engineer, the report says so.
Places near Broad Colney
Also in Broad Colney
How the survey works
Time on site depends on the size and shape of the roof; as a rough guide, the survey takes roughly 1–2 hours on an ordinary house, with bigger or more complicated roofs taking longer. If you have questions on the day, just ask. In a hamlet or village like Broad Colney, a postcode does not always lead to the right gate, so a few directions, or a note of a nearby landmark, help us arrive on time. After that, the survey runs as it would anywhere.
- We start with the roof, its history and any signs of damp or heat loss.
- The weather and surface conditions are recorded.
- We inspect the roof and take thermal images during the same visit.
- Moisture readings are used to check what the camera shows.
- The Premium report reaches you the same day, and we go through it with you in person.
Before the survey
- If the roof is shared, arrange access with whoever manages the building
- Have any questions written down, so nothing gets missed
- Let us know where we can park nearby
Book a survey
Unsure which package suits your roof? It is easiest to ring 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.
Related advice
Can I check my roof myself?
After heavy rain, check ceilings and the tops of walls for new stains. Take a photo and write down when you saw it, as it helps a surveyor trace the cause.
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. Do not go up yourself.