Hertfordshire · London and the South East
Thermal imaging roof survey in Great Wymondley, Hertfordshire
Thermal imaging to find moisture and heat loss patterns in a roof in Great Wymondley, carried out by an experienced roof surveyor. Every survey comes with a written report and photos.
- Leaks that are hard to trace
- Wet areas near outlets and upstands
- Possible trapped moisture under a flat roof covering
Thermal roof survey in Great Wymondley: what you get
A thermal survey can point to places where heat is escaping through the roof. Missing or slipped insulation and gaps at the eaves frequently show up as temperature differences. The difference shows most clearly when it’s warm inside and cold outside. Our report points out what the images suggest and where to look more closely. We do not give energy ratings or heat loss calculations. If you’re worried about gaps in loft insulation and damp around roof outlets and upstands, a survey will tell you what’s going on, on flat roofs, loft conversions and ceilings below the roof alike.
Older buildings in small places like Great Wymondley may be listed or in a conservation area. A look by drone or thermal camera does not touch the roof, which suits a building where any change needs care. Check with the council before planning any work on a listed building or one in a conservation area.
Every survey ends with a written report, with photos, sent by email. It sets out the condition of the roof, any defects and our written recommendations.
- Where
- Great Wymondley (SG4)
- Region
- Hertfordshire
- Cost
- From £400 inc. VAT
- Reports
- Written, with photos, emailed to you
- Survey days
- Weekdays and weekends
- Cover
- Professional indemnity and public liability
- Phone
- 07833 053749
- Page updated
- 27 October 2026
Leave it or get it looked at?
Before replacing a large flat roof, it helps to know how much of it is actually wet. Thermal imaging, checked with moisture readings, gives a clearer picture before you spend. For an older or listed building in a place like Great Wymondley, repairs may need matching materials and consent, so a defect found early gives time to plan the work properly.
There are three survey packages: Basic from £150, Standard from £250 and Premium from £400, with VAT included. The price for your roof depends on its size, access and what you need to know.
Why book us in Great Wymondley
- A written report with photos
- We hold a CAA Flyer ID and Operator ID
- Over 5,000 surveys carried out
- Package prices that include VAT
See our cost guide or two real surveys.
What we can’t see
No survey can tell you everything, and it’s better to know them up front. Keep these in mind:
- Hidden layers that need to be opened up to check
- Proving moisture from the images alone
- Clear results when the conditions on the day are poor
If in doubt, call 07833 053749 or send us an email and we’ll recommend the right survey. What a survey covers and doesn’t.
Roofs we survey in Great Wymondley
- Commercial roofs
- Insulated roof spaces
- Ceilings below the roof
- Loft conversions
- Flat roofs
- Pitched roof slopes
DIY checks: what’s safe
If you have a loft with safe access, take a look inside. Use a torch and stay on the joists or boards, and look for staining, damp timber or daylight coming through.
Your own check is a good start, but it is not a survey. You will not see flashings, valleys or the backs of chimneys properly from the ground, and those are details a survey looks at closely.
How it works
We do not take risks to get a closer look. We inspect what can be seen safely, and if part of the roof can’t be seen, the report says so. The survey usually takes roughly 1–2 hours for most homes, plus time to check any thermal findings with moisture readings. Older roofs in small places like Great Wymondley can have low, tight loft spaces, so let us know about the loft hatch and any ladder. Only areas that can be reached safely are inspected.
- We start by discussing the roof, any signs of damp and how the weather may affect the images.
- We check the roof from the ground, from windows and from the roof itself where it’s safe.
- A thermal camera records how the surface temperature varies across the roof.
- We check the patterns that stand out with moisture readings where there is safe access.
- We write up the thermal images alongside ordinary photos and recommendations.
Before we arrive
- Gather any invoices or paperwork from past roof work
- Leave side gates unlocked
- Keep pets out of the way during the survey
Getting a price
Photos help, if you have them. Take them safely from ground level or a window. To send them or to book, ring 07833 053749 or email us.
Advice
Places near Great Wymondley
Other services in Great Wymondley
Great Wymondley: your questions answered
Will you come out to Great Wymondley?
Yes, we do. Our area covers London and South East England, from towns to the smallest villages. Longer journeys are simply planned in advance.
Is Great Wymondley in the area you cover?
Yes, Great Wymondley is within the area we cover. We cover the whole of London and South East England. Just call 07833 053749 or send us an email and let us know about the property.
How long have you been surveying roofs?
We have more than 20 years’ experience and have completed over 5,000 surveys.
Will the camera show exactly where the water is?
The camera doesn’t see water itself. Wet insulation holds heat longer than dry, so it can stand out, but we check each finding with moisture readings.
Will you fly a drone over my roof?
Where it helps and the rules allow, yes. Our sub-250g drone is flown by a CAA-registered operator with a Flyer ID and Operator ID, and every flight depends on the airspace and the weather.
Are you insured?
Every survey is covered by professional indemnity and public liability insurance, and we can provide details if a managing agent needs them.
Do you take photos of the roof?
Yes, every report has them. Each finding is shown in a picture where possible.
Roof by roof
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.
Felt and asphalt flat roofs
Felt and asphalt sit tight to the layers below, which frequently helps the camera pick up differences. Any patterns are checked with moisture readings.
Flying and imaging in Great Wymondley
About 4.9 miles south lies Knebworth House, a reminder of how long the area around Great Wymondley has been built on. On older houses around here, roofs frequently carry the marks of earlier repairs, from replaced slates to new lead, and the council can say whether a home is in a conservation area. 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. Older coverings on steep or tall roofs are hard to judge from below, so close-up aerial photos and thermal images help.
Take a building like Wymondley Junior Mixed and Infant School: a view from above covers a wide roof far faster than walking it. For an older house near a landmark like Church of St Mary the Virgin, tall stacks and steep slopes are easier to judge with close-up aerial photos than from the pavement.
Great Wymondley is about 2 miles east of Hitchin, in Hertfordshire. Bookings from Great Wymondley are handled just like any other: get in touch, agree the price and pick a day. Across Hertfordshire, we cover Great Wymondley and the places around it. There is also a page for Milton Keynes.
Postcode districts we cover here for thermal roof surveys: SG4. We offer thermal roof surveys to properties on Graveley Road, Hitchin Road and Arch Road. Close by, we survey roofs in Little Wymondley (1 mile south), Poets Estate (1 mile north-west), Graveley (1 mile south-east), Titmore Green (1 mile south) and Willian (1 mile north-east). We also work in nearby towns like Stevenage (3 miles south-east), St Albans (14 miles south), Welwyn Garden City (10 miles south), Harpenden (10 miles south-west), Hatfield (12 miles south) and Hertford (12 miles south-east).
Near you in Great Wymondley
We work in homes and buildings around Hitchin Girls' School, The Green Man pub and Kingshott School. The closest station to Great Wymondley is Hitchin station, about 1.4 miles north-west. Nearby you will also find North Hertfordshire Museum (2 miles west) and Lister Hospital (1.6 miles south-east). The countryside around Great Wymondley includes Purwell Ninesprings.
Landlord and commercial surveys in Great Wymondley
Buyers’ agents can book surveys on behalf of their clients. Reports are emailed, so they’re easy to pass on.
Any of our surveys can be booked by landlords, agents and building managers in Great Wymondley. For a price for a let property or a block, ring 07833 053749 or send us an email.