Hertfordshire · London and the South East
Thermal imaging roof survey in Haldens, Hertfordshire
Thermal imaging to find moisture and heat loss patterns in a roof for Haldens and the rest of Hertfordshire. We survey seven days a week.
- Missing or slipped insulation
- Water that travels before it shows
- Areas losing heat at the eaves and junctions
About our thermal roof survey in Haldens
We present each thermal image next to a normal photo of the same area, making it clear where on the roof each pattern is. Each one comes with an explanation, the moisture readings and our recommendation. Premium reports are sent the same day. If you have questions, the in-person consultation gives you time to go through them. There’s a 12-month follow-up as well. We survey flat roofs, ceilings below the roof and loft conversions, and the problems we’re asked to look at most are areas of a flat roof that may hold water and gaps in loft insulation.
Around Haldens, lots of roofs are low enough to see partly from the garden or the street. Chimney tops, valleys and rear slopes are where close-up or thermal images help most. The forecast decides the day, as calm, dry conditions suit both. Even so, a close-up image often shows wear on ridges and flashings that a view from ground level misses.
Nothing in the report is left vague: if work is needed, the report says so clearly, along with how urgent it is.
- Place
- Haldens (AL7, AL8, AL6)
- Region
- Hertfordshire
- Price
- From £400 inc. VAT
- Your report
- A written report with photos, by email
- When we survey
- Monday to Sunday, daytime
- Insurance
- Professional indemnity and public liability
- Phone
- 07833 053749
- Updated
- 27 October 2026
Tips that help
Some practical points come up on survey after survey. They’re worth knowing whatever the roof:
- Keep the heating on as usual before a heat loss survey
- Keep dated photos of any marks on ceilings
- Note where damp appears and after what weather
- 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.
Consider a repeat survey after major work on the roof in suitable weather.
How the survey changes by roof type
Single-ply and EPDM roofs
Because these membranes are thin, patterns from below frequently show. Shiny surfaces can reflect heat, so we take care reading the images.
GRP fibreglass roofs
Water can get through cracked GRP into the deck. We combine a visual check of cracks with the thermal images around them.
When to book a survey in Haldens
People often book a thermal survey when a damp patch has no obvious cause. A leak may start well away from where the stain appears. The camera helps narrow the search.
A survey makes sense if you’ve noticed:
- Patches of heat loss across the roof
- Water that travels before it shows
- Damp around roof outlets and upstands
- Damp that repairs haven’t cured
The streets around a church such as Christ the King are often among the oldest in a place, and if yours is one of the older homes nearby, tall stacks and steep slopes are easier to judge with close-up aerial photos than from the pavement.
Questions to ask before booking
- Whether the loft space is looked at, where there is one
- Which limits apply to the survey
- Will the report include photos?
- Whether the price includes VAT
Why it’s worth a survey now in Haldens
Without thermal imaging, the only way to see how far water has spread is frequently to open up the roof. That helps you and your roofer decide what really needs replacing. Tradespeople may need to travel further to a smaller place like Haldens, so it’s useful to plan roof work rather than call someone out in a hurry. A survey gives you that notice.
Our price is from £400, including VAT. What you pay depends on how big and how high the roof is, access and the package you choose.
What you get with us
- Surveys on weekdays and at weekends
- Plain-English reports with photos
- Package prices that include VAT
- 5,000+ roofs surveyed
Haldens: your questions answered
Do you carry out roof surveys in Haldens?
Yes, Haldens is one of the places we work. The survey and report are the same in Haldens as anywhere else.
Do you cover smaller places like Haldens?
Yes, Haldens is covered. We work right across London and South East England, and smaller places are part of that. Longer journeys are simply planned in advance.
Is thermal imaging good for finding leaks?
It can help narrow down where water may be getting in. Patterns can suggest where trapped water has spread. It’s used alongside a close inspection and moisture readings, as the camera alone can’t prove a leak.
How do I arrange a thermal roof survey in Haldens?
Simply ring 07833 053749 or use the contact form with the address. After a few questions, we confirm the price and fix a day.
Do you survey roofs on blocks of flats?
Yes, if whoever owns or manages the building agrees access. On a shared roof we can only inspect the parts we are allowed to reach, and the report makes that clear.
What happens next?
You will get the report by email. With Standard there’s a follow-up consultation; with Premium, an in-person consultation, so you can talk the findings through.
Will the survey show heat loss through my roof?
The camera can point to heat loss and gaps in insulation. The survey is not an energy rating or a heat loss calculation, but the report shows where to look more closely.
How it works
The aim of the visit is simple: to look at the roof as closely as is safe and record what we find. Everything we note and photograph goes into the written report. It normally takes about 1–2 hours at a typical home, and more on a big or complicated roof. Being in a smaller place like Haldens does not change how the visit works: outside, inside and from any safe vantage point, in that order. Point out any stains, cracks or loose pieces you’ve spotted.
- You let us know 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.
- The Premium report reaches you the same day, and we go through it with you in person.
Before we arrive
- Let us know about any leaks, stains or damp patches you know of
- Leave side gates unlocked
- Buyers: confirm access with the estate agent or seller
How to book
Not sure which survey you need? The easiest way is to call 07833 053749 or email us and describe the roof and why you want it surveyed. We’ll talk you through the options and what they cost.
Advice
Thermal roof surveys in Haldens: local notes
Across the South East, older homes tend to have slate or clay tiles, and many later ones concrete tiles, and flat-roofed additions turn up almost everywhere. Where a roof is steep, tall or hard to see from ground level, drone photos and thermal images add detail. The wider area around Haldens has a long history of building, with Digswell House about 0.9 miles north-west. On older houses around here, roofs frequently carry the marks of earlier repairs, from replaced slates to new lead, and any change of roofing material on a listed home needs checking with the council first.
If you look after a building such as Waterside Academy, big roofs are where close-up aerial shots and thermal images show the most at once. For businesses in and around places such as Howard Centre, thermal images can show trapped moisture across a wide commercial roof.
Haldens is about 1 mile north of Welwyn Garden City, in Hertfordshire. Anywhere in Haldens, we can carry out thermal roof surveys at your property, on a weekday, Saturday or Sunday. Haldens is one of the places in Hertfordshire we cover for thermal roof surveys. You can also see our page for London.
Every address in AL7, AL8 and AL6 is within our area for thermal roof surveys. Streets in the area include Hertford Road, Bessemer Road and Digswell Lane, and we cover them all. Other places close to Haldens include Digswell (1 mile north-west), Harmer Green (1 mile north), Tewin (1 mile east), Burnham Green (2 miles north-east) and Tewin Wood (2 miles north-east). We also work in nearby towns such as Watford (14 miles south-west), Hemel Hempstead (12 miles west), Stevenage (7 miles north), St Albans (7 miles south-west), Bishop's Stortford (15 miles east) and Harpenden (7 miles west).
Near you in Haldens
We work in homes and buildings around Sir Frederic Osborn School and The Sheldan Inn, among other places. The closest station to Haldens is Welwyn North station, roughly 0.8 miles north. Nearby you will also find Datchworth Museum (2.8 miles north-east) and Howard Centre (1.1 miles south-west). The countryside around Haldens includes Tewin Orchard and Hopkyns Wood.
Nearby places to Haldens
What else we do in Haldens
DIY checks: what’s safe
It’s useful to keep a record: when leaks happen, ground-level photos and any past roof work. Share it with us when booking, as it helps us focus the survey.
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.