Hertfordshire · London and the South East
Thermal imaging roof survey in Langley, Hertfordshire
Thermal roof surveys in Langley, with over 20 years’ experience behind it. Every survey ends with a written report and photographs.
- Moisture around outlets and upstands
- Gaps in loft insulation
- Water that travels before it shows
Langley questions
Do you cover Langley?
Yes, Langley is within the area we cover. We work right across London and the South East. Just call 07833 053749 or send us an email and tell us about the property, and we will talk through which survey suits.
Is my home in Langley listed or in a conservation area?
The council and Historic England’s list are the places to check. Either can affect what roof work is allowed, so it is worth checking before planning any.
Can you tell me if my roof has asbestos?
No. We don’t carry out asbestos surveys or testing. If we see materials that could contain asbestos, such as cement roof sheets or soffits on buildings from before 2000, we flag them, and recommend a specialist asbestos surveyor checks them before they’re disturbed.
Will the camera show exactly where the water is?
Not directly. It shows temperature, and wet materials often behave differently from dry ones. That’s why we check any patterns with moisture readings.
Can you give me structural calculations?
No. We point out what can be seen, like sagging or deflection, but we’re not structural engineers and don’t carry out calculations. If we think you need an engineer, the report says so.
Is thermal imaging useful on pitched roofs?
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.
I live in a flat. Can you survey the roof?
Yes. Shared roofs just need a little more planning. Tell us about it as you book and we’ll plan the survey around it.
Thermal roof survey in Langley: what you get
We present each thermal image next to a normal photo of the same area, making it clear where on the roof each pattern is. We explain what each pattern may mean, what the moisture readings found and what we recommend. With a Premium Survey, the report reaches you the same day. You can talk the findings through with us at the in-person consultation. There is a 12-month follow-up as well. We’re often asked to look into leaks that are hard to trace and patches of heat loss across the roof, across pitched roof slopes, insulated roof spaces and loft conversions.
Older buildings in small places like Langley may be listed or in a conservation area. A look from above or with a thermal imager doesn’t touch the roof, so it is a gentle way to see the condition of an old roof. Check with the council before planning any work on a listed building or one in a conservation area.
Pictures do a lot of the work in our reports, because a photo of a cracked flashing says more than a paragraph. If something couldn’t be seen safely, the report is clear about it.
- Where
- Langley (SG4)
- Region
- Hertfordshire
- Price
- From £400 inc. VAT
- Report
- A written report with photos, by email
- Appointments
- Weekdays and weekends
- Cover
- PI and public liability insurance
- Call
- 07833 053749
- Updated
- 27 October 2026
What happens if roof problems are left?
Wet insulation under a flat roof does not dry out on its own while the covering stays on. Over time, it insulates less well and can harm the deck. Finding them early can mean a smaller job. Where a roof is exposed, as many are in small places like Langley, driving rain gets into any weakness, and damp in older walls is slow to dry out.
There are three survey packages: Basic from £150, Standard from £250 and Premium from £400, all inc. VAT. The price for your roof depends on its size, access and what you’d like to know.
What you get with us
- Independent findings on the roof’s condition
- 5,000+ surveys completed
- Over 20 years’ experience
- Customer satisfaction of 98%
Take a look at what a roof survey costs or what we found on two real jobs.
What happens on the day
You don’t need to do much on the day. Show us any stains, drips or problem areas you know about, and we will get on with the inspection. The survey itself takes about 1–2 hours at a typical home, or half a day or so for a commercial building. For a village or hamlet like Langley, the journey is planned in advance: let us know about lanes, gates and parking. On the day, we inspect whatever is safely visible, inside and out.
- You tell us about the roof and any damp, leaks or cold rooms.
- We check the conditions and note how they may affect the images.
- 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.
Getting ready for the survey
- If you’re buying, let the agent know when we are coming
- Keep pets in another room
- Show us where any leaks or stains appear
Arrange a survey
Our phone lines are open seven days a week. For a price or to book, ring 07833 053749 or send us an email.
Read more
Drones, thermal imaging and Langley roofs
The wider area around Langley has a long history of building, with Knebworth House about 1.3 miles south-east. On older houses around here, roofs often carry the marks of earlier repairs, from replaced slates to new lead. In this part of the South East, older roofs are mostly slate or clay tile and many newer ones concrete tile, with flat-roofed extensions, dormers and garages common everywhere. Steep or complicated roofs are often hard to see from ground level, which is where aerial photos and thermal images help.
Langley is about 3 miles south-west of Stevenage, in Hertfordshire. From houses to flats and shops in Langley, we can survey the roof on a weekday or at the weekend. Langley is one of the places in Hertfordshire we cover for thermal roof surveys. There’s also a page for Milton Keynes.
Thermal roof surveys in SG4 are booked the same way as anywhere else. Whether your property is on London Road and Village Street or a nearby road, we can survey it. Other places close to Langley include Langley Bottom (1 mile north-west), Rush Green (1 mile north-west), St Paul's Walden (1 mile west), Old Knebworth (2 miles south-east) and Driver's End (2 miles south). We also work in nearby towns such as Hemel Hempstead (13 miles south-west), Stevenage (3 miles north-east), St Albans (10 miles south-west), Welwyn Garden City (6 miles south), Harpenden (7 miles south-west) and Hitchin (5 miles north).
Around Langley
Typical jobs here are in homes near Concerts at Knebworth House and Farmers Boy Public House. The closest station to Langley is Stevenage station, roughly 1.5 miles north-east of the centre. A little further out are Lister Hospital (2.7 miles north) and Wymondley Castle (3.7 miles north). Not far away are Ridlins Mire.
Nearby places to Langley
More services for Langley
Signs you need a thermal roof survey in Langley
Buyers sometimes want more than a visual look at the roof. The Premium Survey brings thermal imaging and a drone inspection where it applies, with a report the same day, which suits a purchase that is moving quickly.
A survey makes sense if you’ve noticed:
- Cold areas below the roof
- Leaks far from where the stain appears
- Heat escaping through the roof
- Moisture around outlets and upstands
Take a building like The Thomas Alleyne School: a drone or thermal camera can show a large roof in a single visit.
Choosing a roof surveyor
- Which viewpoints they use to see the roof
- Whether you get a written report with photos
- What the survey will not cover
- How much experience they have with roofs like yours
Landlord and commercial surveys in Langley
A roof problem in a let property affects your tenants as well as the building. A survey helps you spot issues early and plan the work around your tenants.
For a freeholder or residents’ company, a roof report is a sound basis for a maintenance plan, with the most urgent items set out first.
Prices for thermal roof surveys in Langley
Prices vary from roof to roof, and it comes down to:
- Any need for thermal images or a drone flight
- The height of the building and how the roof can safely be seen
- Commercial roofs and larger buildings
- Features like valleys, chimneys, dormers and parapets
To find out what your survey will cost, ring 07833 053749 or use the contact form and let us know about the roof. The price is agreed before a date is set.
Booking your survey
If you can, have these to hand when you get in touch:
- What’s prompted the survey
- Any photos you have, taken from the ground or a window
- Your timetable, such as an exchange date
- Where water is showing inside, if it is
Buyers should book once an offer has been accepted, so there is time to use the report before exchange. For any other survey, just call 07833 053749 or email us when you’re ready.
Tips that help
Over many surveys, some simple habits stand out as worth the effort:
- Clear leaves from outlets and gutters each autumn
- Remember the conditions on the day affect the results
- Keep the report to compare against after any repair
- Take photos of stains as they appear, so we can compare
If the images suggest moisture that can’t be confirmed, we’ll say what would help next, for example electronic leak detection or a roofer opening up a small section.
Clear outlets and gutters regularly, so water doesn’t sit on the roof. The less water sits, the less can find its way beneath.