Hertfordshire · London and the South East
Thermal Roof Survey in Aspenden
Thermal imaging to find moisture and heat loss patterns in a roof around Aspenden, with findings in writing and pictures to back them up. Weekday and weekend visits available.
- Damp where roofs meet walls and chimneys
- Heat escaping through the roof
- Moisture around outlets and upstands
Your questions about thermal roof surveys in Aspenden
Is my home in Aspenden listed or in a conservation area?
Check Historic England’s online list first, then ask the council about conservation areas and any Article 4 direction. It matters most if you are planning to re-roof in a different material.
Will you come out to Aspenden?
Yes, smaller places are covered as well as towns. We cover the whole of London and South East England. Just mention lanes, gates or anything else about the route when you book.
What can thermal imaging tell me about my roof?
The images show how warm or cool each part of the surface is. Unusual patterns can point to trapped water, gaps in insulation or heat escaping, which we then check with moisture readings.
Will you fly a drone over my roof?
Yes, where it is applicable. 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.
What happens after the survey?
You will get the report by email. The Standard Survey includes a follow-up consultation, and the Premium Survey an in-person consultation.
Will thermal imaging find my leak?
Thermal imaging can help, alongside other checks. What it shows depends on the weather and the roof. Where it cannot be pinned down, the report suggests a next step, such as electronic leak detection.
How long will you be at the property?
Most surveys take between one and two hours for most houses, and about three to four hours for a commercial roof. The report follows by email.
Thermal roof surveys for homes and businesses in Aspenden
Thermal imaging can also show where a roof is losing heat. Gaps in loft insulation and poorly insulated areas can stand out on the images. 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. We’re often asked to look into damp that repairs haven’t cured and wet areas near outlets and upstands, across loft conversions, ceilings below the roof and pitched roof slopes.
In a village or hamlet like Aspenden, roofs can be steep, old and hard to see from the lane. A drone and a thermal camera each give a view you can’t get from ground level. Weather and airspace are checked before the visit, and the journey is planned in advance. Steep slopes and tall chimney stacks are where a close-up view adds the most.
The report is yours to share with whoever needs it: your solicitor, the seller, your insurer, a roofer or the building’s managing agent, whichever applies.
- Place
- Aspenden (SG9)
- Wider area
- Hertfordshire
- Price
- From £400 inc. VAT
- Your report
- Written, with photos, emailed to you
- When we survey
- Weekdays and weekends
- Insurance
- PI and public liability insurance
- Telephone
- 07833 053749
- Updated
- 27 October 2026
What a thermal roof survey looks like in Aspenden
If your survey includes the drone, the flight is checked against the Drone Safety Map first. In this part of the South East, older roofs are mostly slate or clay tile and many newer ones concrete tile, and flat-roofed additions turn up almost everywhere. Steep or complicated roofs are frequently hard to see from ground level, which is where aerial photos and thermal images help.
The streets around a church like Parish Church of St Mary are frequently among the oldest in a place, and if you own one of the older houses nearby, steep roofs, tall chimneys and hidden valleys can be hard to see from ground level, and that is where a view from above or with a thermal imager helps.
Aspenden is about 7 miles east of Stevenage, in Hertfordshire. Houses, flats, blocks and commercial buildings in Aspenden can all book thermal roof surveys, with a written report and photographs every time. Across Hertfordshire, we cover Aspenden and the places around it. Chelmsford is in our area too.
Surveys in SG9 are booked the same way as anywhere else. Local streets include London Road, Keen Avenue and Aspenden Road, and we cover them all. If you are just outside Aspenden, we cover Westmill (1 mile south), Buntingford (1 mile north), Layston (1 mile north), Throcking (2 miles north-west) and Wyddial (2 miles north). Larger places within reach include Stevenage (7 miles west), Bishop's Stortford (9 miles south-east), Welwyn Garden City (12 miles south-west), Hitchin (11 miles west), Hoddesdon (12 miles south) and Hatfield (15 miles south-west).
What’s near Aspenden
We work in homes and buildings around The Fox Public House and Freman College and the streets around them. Other landmarks nearby include Anstey Hales Farm (4.2 miles north-east). Green spaces nearby include Hawkins Wood.
What we look for on each type of roof
Felt and asphalt flat roofs
Felt and asphalt sit tight to the layers below, which often helps the camera pick up differences. We confirm any patterns with moisture readings.
GRP fibreglass roofs
Water under a GRP roof can reach the timber deck. The camera can help show where to look.
DIY checks: what’s safe
Watch the gutters in a downpour, from a window or the ground. Water spilling over the edge can be a sign of a blockage or a gutter that has dropped.
Look up at the roof after a storm, from ground level: 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.
The survey, step by step
Every roof is different, but as a rough guide the survey takes between one and two hours at a house, including the thermal images, and around 3–4 hours for a commercial roof. If you have questions on the day, just ask. Older roofs in small places like Aspenden can have low, tight loft spaces, so let us know about the loft hatch and any ladder. We only go where it’s safe.
- We go through the roof, the problem and the weather expected on the day.
- The roof is inspected visually from safe positions.
- Thermal images are taken across the roof and, where there’s safe access, in the loft.
- Patterns that stand out are checked with moisture readings.
- The report pairs each thermal image with a photo and explains what it suggests.
Preparing for the visit
- Tell us where we can park nearby
- If it isn’t your property yet, arrange access through the agent
- For flats, make sure roof access has been agreed
Book a survey
Once you know what you need, ring 07833 053749 or use the contact form. From there it is a case of choosing a package, agreeing the price and fixing a day, weekday or weekend.
Related advice
Also near Aspenden
Other services in Aspenden
Why get it checked now?
Trapped water can harm decks, timbers and ceilings the longer it stays. Looking now, while the damage may still be limited, keeps more options open. Outbuildings and barns around Aspenden are easy to forget, but a failed roof there can spoil what’s stored inside. A quick look before winter can save a lot.
Every price we give includes VAT, and the report isn’t charged as an extra. Prices start from £400, including VAT. Where your roof sits in the range depends on its size, height and access.
Why book us in Aspenden
- Drone flown under a CAA Flyer ID and Operator ID
- Independent findings on the roof’s condition
- Package prices that include VAT
- Drone and thermal imaging surveys available
When you need someone else
Before you book, it’s worth knowing what a survey will not do:
- Whether the deck or roof structure is strong enough
- Insulation values or heat loss calculations
- Seeing water directly, as the camera shows temperature, not moisture
If you are not sure which survey you need, ring 07833 053749 or use the contact form and we’ll give you a straight answer before booking. What a survey covers and does not.
What this survey covers
- Pitched roof slopes
- Insulated roof spaces
- Loft conversions
- Ceilings below the roof
- Flat roofs
- Commercial roofs
What we’re asked to look at in Aspenden
Some defects simply can’t be seen with the eye. Wet insulation, gaps in insulation and heat loss are often invisible from outside. Thermal imaging gives us another way to look for them.
People typically book a survey when they’ve noticed something like this:
- Damp where roofs meet walls and chimneys
- Damp patches with no obvious cause
- Areas losing heat at the eaves and junctions
- Cold areas below the roof
For site and facilities teams at buildings such as Millfield First and Nursery School, thermal images can show where wet insulation sits under a big flat roof.
Choosing a roof surveyor
- Is there a chance to talk the report through?
- What the report includes, and whether it has photographs
- Their report turnaround times
- What experience they bring