Hertfordshire · London and the South East
Thermal imaging roof survey in Walsworth, Hertfordshire
Thermal roof surveys in Walsworth, backed by more than 20 years’ experience. Every survey ends with a written report and photographs.
- Stains that keep coming back
- Wet areas near outlets and upstands
- Ceilings that feel colder in places
What we cannot see
Every survey has limits, and we’d rather be clear about that before you book. Keep these in mind:
- Proving moisture from the images alone
- What’s inside walls or under coverings, without opening up
- A formal energy assessment
If in doubt, call 07833 053749 or send us an email and we’ll suggest the right survey. The full list of what we check.
Roofs we survey in Walsworth
- Pitched roof slopes
- Ceilings below the roof
- Commercial roofs
- Insulated roof spaces
- Loft conversions
- Flat roofs
About our thermal roof survey in Walsworth
Flat roofs over extensions, garages, flats and commercial buildings are where thermal imaging often helps most. Patterns can suggest where water is trapped under the covering. Pitched roofs with slates or tiles are often harder to read, because of the air space beneath, so we combine the camera with an inspection from the loft where there is safe access. If you’ve noticed wet areas near outlets and upstands and ceilings that feel colder in places, we can find out what’s behind it, whatever the roof.
Around Walsworth, older homes can have thin loft insulation and later additions with roofs of their own. A thermal image can show where heat is escaping or where moisture may be trapped, and drone photos show the roof surfaces themselves. Anything that looks like moisture is checked with a meter. Calm, dry weather suits both methods, so the date is set with the forecast in mind.
Findings are set out part by part, from the main slopes down to the gutters and outlets. You’ll see the good as well as the bad.
- Place
- Walsworth (SG4, SG5)
- Region
- Hertfordshire
- Price
- From £400 inc. VAT
- Your report
- Written, with photos, emailed to you
- Appointments
- Weekdays and weekends
- Insured
- PI and public liability insurance
- Call
- 07833 053749
- Last updated
- 27 October 2026
Why act early in Walsworth
Repeated repairs that do not stop a leak are a sign the source hasn’t been traced. Thermal imaging with moisture readings can help narrow it down, instead of trying repair after repair. Around Walsworth, a leak in an older house can soak into timbers and plaster, which is far harder to put right than the roof fault itself.
To find out what your survey will cost, call 07833 053749 or email us and let us know about the roof. The price is agreed before a date is set.
Why book with us
- Covered by professional indemnity and public liability insurance
- 98% of clients satisfied
- We hold a CAA Flyer ID and Operator ID
- Packages from £150, inc. VAT
Take a look at our cost guide and what we found on two real jobs.
For landlords and managing agents
If the property is let, the agent or a tenant can let us in. Surveys run on weekdays and at weekends, which can make access easier.
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.
What a survey costs
All our prices include VAT. The things that change the price are:
- Any need for thermal images or a drone flight
- Commercial roofs and larger buildings
- How tall the building is and how easy the roof is to see
- Roof area
A small, low roof with good viewpoints takes less time than a tall, complicated one, and the package matters as well. The price is always agreed first.
What we need to know
Here’s what helps us most when you get in touch:
- Any stains, drips or damp patches you’ve seen indoors
- The reason for the survey, like buying, a leak or storm damage
- Photos of the roof, taken safely from the ground or a window
- Your timetable, such as an exchange date
Every survey is priced before it’s booked, so you know where you stand. Prices start from £400, including VAT. For a price for your roof, ring 07833 053749 or use the contact form.
Drones, thermal imaging and Walsworth roofs
Across the South East, older homes tend to have slate or clay tiles, and many later ones concrete tiles, with flat-roofed extensions, dormers and garages common everywhere. Where a roof is steep, tall or hard to see from ground level, drone photos and thermal images add detail. There are several hotels within about a mile and a half of Walsworth, and hotels, like offices and blocks of flats, frequently have flat roofs. For hotels and other commercial buildings, large roofs are where aerial photos and thermal images show the most at once.
For hotels and guest houses around Walsworth, a roof problem found early is far less disruptive than one found by a guest, so it is worth knowing the roof’s condition. The streets around a church such as St Faith's Church are often among the oldest in a place, and if your home is one of the older ones nearby, thin or patchy insulation under an old roof often shows up clearly on a thermal image.
Walsworth is about 1 mile north-east of Hitchin, in Hertfordshire. Roofs in Walsworth get the same thorough look as anywhere else in Hertfordshire. Across Hertfordshire, we cover Walsworth. Our Milton Keynes page covers surveys nearby.
We cover every part of the SG4 and SG5 postcode area for thermal roof surveys. We offer thermal roof surveys to properties on Green Lane, Orchard Road and Purwell Lane. We also cover the places around Walsworth: Poets Estate (1 mile south), Benslow (1 mile south-west), Hitchin (1 mile south-west), Bearton (1 mile west) and Great Wymondley (1 mile south-east). Within a short drive, we also cover Stevenage (5 miles south-east), St Albans (14 miles south), Welwyn Garden City (11 miles south), Harpenden (10 miles south), Hatfield (13 miles south) and Hertford (13 miles south-east).
Near you in Walsworth
Around Walsworth, our work takes us to homes and buildings near The Millstream pub, Kingshott School and St Mary's Church, among other places. Nearby too are Hitchin Girls' School (0.8 miles south-west) and Butts Close (1.2 miles west). Walsworth has its own railway station: Hitchin station. Well-known places in the area include Wymondley Castle (1.4 miles south-east) and Lister Hospital (2.9 miles south-east). Not far away are Markham's Hill and Purwell Ninesprings.
Signs you need a thermal roof survey in Walsworth
After a repair, some owners want to know whether the roof has dried out. Thermal images and moisture readings can suggest whether moisture is still trapped, given suitable conditions on the day.
Signs worth acting on include:
- Ceilings that feel colder in places
- Areas losing heat at the eaves and junctions
- Damp around chimneys and parapets
- Damp patches with no obvious cause
If you look after a building such as Highover Junior Mixed and Infant School, thermal images can show where wet insulation sits under a big flat roof.
Questions to ask before booking
- How long they’ve been surveying roofs
- Which limits apply to the survey
- Are they insured for the work?
- Whether the inside of the roof is included
Towns and villages near Walsworth
Also in Walsworth
How it works
Every visit follows the same pattern: we listen to what’s been worrying you, look at the roof from every safe viewpoint, take photographs as we go and make notes for the report. Most visits take about 1–2 hours on an ordinary house, and more on a big or complicated roof. In a smaller place like Walsworth, parking is seldom the issue; lanes, gates and long drives are worth mentioning. On bungalows and lower roofs, much can be seen from the ground, with the loft showing the underside, while taller roofs may need other vantage points or the drone where applicable.
- We go through the roof, the problem and the weather expected on the day.
- We look over the roof from wherever it’s safe.
- Thermal images are taken across the roof and, where there is safe access, in the loft.
- Patterns that stand out are checked with moisture readings.
- Each image is set beside a normal photo and explained in the report.
Preparing for the visit
- Move anything stored under the loft hatch
- Make a note of anything you’d like us to look at
- Dig out any old roof reports or invoices
Booking a survey
You can call us seven days a week. For a price or to book, phone 07833 053749 or use the contact form.
Related advice
FAQs for Walsworth
Do you cover smaller places like Walsworth?
Yes, smaller places are covered as well as towns. We survey roofs across London and the South East. Just mention lanes, gates or anything else about the route when you book.
Is Walsworth in the area you cover?
Yes. We work right across London and the South East, and Walsworth is part of that. You can call 07833 053749 or drop us an email with the address and a few details, and we’ll talk through which survey suits.
Is thermal imaging useful on pitched roofs?
It can help, but the results are often less clear than on a flat roof. The air space under slates and tiles can hide patterns, so we combine it with an inspection from the loft where there is safe access.
How many surveys have you done?
More than 5,000 surveys over 20+ years, across London and South East England.
Is it the same as a RICS Level 2 or Level 3 survey?
No. Our survey looks at the roof, not the whole building. For the rest of the building, a RICS home survey is a separate job.
How long will you be at the property?
That depends on the size and shape of the roof, but most surveys take about 1–2 hours at a house, including the thermal images, and around 3–4 hours for a commercial roof. The report is sent afterwards by email.
What conditions are best for thermal imaging?
Conditions on the day affect the results. It works best after a sunny day, with a dry roof surface and little wind. Rain, wind and heavy cloud can weaken the patterns, so we discuss the forecast when booking.