Infrared thermal imaging to detect heat loss and hidden defects
Our thermal imaging specialists carry out detailed infrared surveys across Exeter, showing where heat escapes and where cold is getting in. We detect insulation gaps, air leakage, cold bridging, hidden damp patterns and electrical hotspots that a visual inspection can miss. The camera records surface temperature differences, then we translate those readings into clear findings you can act on. Thermal imaging is non-invasive and non-destructive, so the property stays intact while we map the problem areas.
Exeter's property market gives plenty of reasons to check energy performance before winter bites. home.co.uk records show the average asking price in Exeter was £378,790 in May 2026, while homedata.co.uk records show the average property price in the Exeter postcode area was £336,000 between April 2025 and March 2026. During that same period, sales fell by 15.9% to 7,100 transactions, and only 209 homes, or 3.0%, were newly built. That mix means many homes still rely on older fabric, older fittings or patchwork upgrades, all of which can hide heat loss until our thermal cameras expose it.
Detached homes made up 33.9% of sales in the Exeter postcode area between April 2025 and March 2026, with terraced homes at 31.7%, semi-detached homes at 21.5% and flats at 12.9%. That spread matters because each form of construction loses heat in different places. We often see roof-level heat loss, cold corners at junctions, leaking window frames and missing cavity wall insulation patterns that stand out in the infrared image. In a market with 7,100 sales over 12 months, a thermal survey helps separate a tidy-looking property from one that is quietly wasting energy.
Infrared cameras record surface temperature variations to 0.1C accuracy, so the image can show where insulation is thin, where draughts are active and where moisture is cooling a surface. Our surveyors look for heat loss through walls, lofts, floors and glazing, then check whether a dark patch is caused by insulation failure, thermal bridging or air movement. We also inspect for underfloor heating faults, radiator imbalance and electrical hotspots where a circuit is running warmer than it should. A good thermal report does not just point at a red patch, it explains why that patch matters inside an Exeter home.
The Exeter postcode area shows a mixed sales picture, and that mix drives mixed heat-loss problems. homedata.co.uk records show 7,100 sales in the previous 12 months, down by 15.9% or 1,600 transactions, which means buyers are often looking more closely at running costs before they commit. With 209 newly built homes making up just 3.0% of those sales, many properties changing hands are not brand new, so insulation standards can vary from one home to the next. Our thermal imaging specialists use that local context to focus on the fabric details that are most likely to affect bills and comfort.
The property mix also shapes what we find. Detached homes accounted for 33.9% of sales, and these properties often reveal heat loss at roof junctions, dormer details and floor edges. Terraced homes, at 31.7% of sales, can show colder front elevations, draughts around original openings and heat transfer at party-wall junctions. Semi-detached homes and flats bring their own patterns, with flats often showing top-floor ceiling losses and external wall leakage that is easy to miss from inside.
Energy costs feel different on a 2-bed and a 3-bed home, so the asking-price spread matters too. home.co.uk records show 2-bedroom homes in Exeter at £246,716 and 3-bedroom homes at £343,089 as of May 2026, while the average asking price sat at £378,790. A small improvement in insulation or air tightness can change how a home feels through January and February, and it can also support a stronger EPC result later on. That is why thermal imaging is useful both before purchase and after a retrofit, especially where previous upgrades have been done in stages.
Heat loss is rarely evenly spread across a home. In many properties, around 25% of heat escapes through the roof, 35% through the walls and 15% through the windows, which is why our surveyors scan each envelope element separately and record the temperature contrast at each junction. Those figures are not a guess at one address in Exeter, they are the kind of pattern thermal imaging is built to reveal. Once the image shows the loss path, we can recommend the right fix rather than relying on assumptions.
That evidence helps connect a finding to an action. A loft with clear cold streaks might need topping up, a badly sealed hatch might need attention, and a wall pattern could point to missing or failed cavity insulation. Our reports set out the practical order of work, from low-cost draught sealing to more involved insulation upgrades, so the fixes are easier to plan. In Exeter, where home.co.uk shows the average asking price at £378,790 in May 2026, owners usually want any energy upgrade to be clear, targeted and justified by the image.
Start with our quote form for Exeter. We set out the survey scope, access needs and property size, then confirm the visit.
The best results usually come between October and March, when there is at least a 10C difference between inside and outside. That contrast makes heat loss show up clearly.
Ask for the heating to be on for at least 2 hours before the survey. The building needs a steady internal temperature so the images reflect the fabric, not a cold start.
Our surveyors carry out external and internal infrared checks, usually taking 1-2 hours depending on property size. We look at walls, loft access points, windows, floors and service penetrations.
We compare warm and cold zones, filter out false readings and annotate each image. Reflections, solar gain and local heat sources are checked so we do not mistake a surface anomaly for a real defect.
You get a written report with thermal images, explanations and recommendations. It shows what needs attention first, from draught sealing and insulation top-ups to a deeper inspection where moisture or wiring issues are suspected.
Thermal images use a colour scale to make temperature differences visible. Cold areas usually show in blue or purple, warmer areas in red, orange or white, and the actual meaning depends on what the surface is made of and how the room was heated. A white patch on a ceiling in Exeter is not automatically a failure, because we compare it with the room layout, building fabric and weather on the day. That is why the image always needs an explanation, not just a colour legend.
Our surveyors read the temperature pattern, not just the picture. A sharp line at a wall junction can indicate thermal bridging, while a broad cool zone might point to missing insulation or poor installation at a later retrofit stage. In a property market where homedata.co.uk records show the average price in the Exeter postcode area at £336,000 between April 2025 and March 2026, hidden thermal defects can matter just as much as cosmetic ones. Buyers and owners want to know whether a problem is localised or part of a wider fabric issue.
False readings can appear, and we check for them carefully. Sunlight can warm one side of a wall, glossy surfaces can reflect other heat sources, and a recently used radiator can leave a temporary hot trail that has nothing to do with insulation quality. That is why our thermal imaging specialists combine the camera output with building knowledge, access conditions and temperature differentials from the day of the survey. The final report explains each finding in plain English, so you know which image tells a real story and which one needs a cautious read.
Terraced homes account for 31.7% of sales in the Exeter postcode area, and they often show repeat patterns around front elevations, loft hatches and older window openings. We frequently find draughty service penetrations, patchy loft insulation and cold spots at ceiling corners where warm air has escaped into the roof void. Semi-detached homes, which made up 21.5% of sales, can show similar issues on the exposed side wall and at the junction with extensions. A thermal scan makes those weak points visible before they become a higher heating bill.
Newer homes are not exempt, even though only 209 properties, or 3.0%, of sales were newly built in the latest 12-month period. We sometimes pick up heat loss around roof lights, extract fans, pipe routes and door thresholds where the air barrier has been broken during fit-out. Flats, at 12.9% of sales, can show ceiling losses in upper floors and leakage around shared service routes that the eye will miss. Detached homes, which led the mix at 33.9%, often reveal bigger roof spreads and colder floor edges, especially when an extension or garage conversion has altered the original envelope.
Our thermal imaging specialists detect heat loss, missing or damaged insulation, air leakage, cold bridging, hidden damp patterns and electrical hotspots. In Exeter, the images are especially useful where a property has had partial upgrades, because the cold spots show where the fabric no longer performs evenly. The survey is non-invasive, so we can inspect the building without opening walls or lifting finishes.
Our thermal imaging survey in Exeter starts from £300, depending on property size and access. That price covers the infrared inspection, image analysis and a written report with recommendations. If the property is larger or has more complex access, we will confirm the quote before booking.
The best results usually come from October to March, when the contrast between indoor and outdoor temperatures is strongest. We look for at least a 10C difference between inside and outside so the heat-loss pattern stands out clearly. If the weather is too mild, the image can still be useful, but the contrast is often weaker.
Most thermal surveys take 1-2 hours, although larger homes in the Exeter postcode area can take longer. The exact timing depends on the layout, access to lofts and whether we need to inspect both internal and external elevations. After that, the image analysis and report writing take place off site.
Thermal imaging can highlight cold patches, moisture ingress paths and areas that are more likely to support condensation. It does not prove damp on its own, so we use the image alongside visual checks and, where needed, other testing. In a property where the surface temperature is lower than expected, the camera gives us a strong clue about where to look next.
Yes, a little preparation helps the results. Keep the heating on for at least 2 hours before the visit, close windows and external doors, and avoid open fires or other strong local heat sources where possible. If you have recent works paperwork for insulation, windows or heating upgrades, have it ready so our surveyors can compare the image with the building history.
Yes, older homes can benefit a great deal because the fabric is often less uniform and the heat-loss pattern is easier to map. In Exeter, where homedata.co.uk records show 7,100 sales in the last 12 months and only 209 newly built properties, many buyers and owners are dealing with homes that have seen years of piecemeal upgrades. A thermal survey helps show which parts of the property have already been improved and which parts still need work.
From £80
Energy performance certificate to benchmark efficiency after your thermal findings
From £400
Suitable for most conventional homes and useful alongside a thermal survey
From £650
A deeper inspection for older, altered or more complex properties
From £0
Speak to a broker if you are budgeting for a purchase plus energy upgrades
Our thermal imaging survey in Exeter starts from £300, which keeps the entry cost clear for smaller homes and straightforward inspections. That fee covers the infrared scan, analysis of the images and a report that explains where heat loss, moisture risk or electrical heat build-up is most likely to be found. If the property is larger, has difficult access or needs a more detailed scope, we quote before the survey so the price stays transparent. For an owner comparing that cost with home.co.uk's May 2026 average asking price of £378,790, the survey is a modest step that can shape far bigger spending decisions.
The value is in what the camera reveals. A property can look warm enough from the hallway, yet show obvious roof leaks of heat, unsealed openings around service entries or cold bridging at structural junctions. Our surveyors map those issues into an annotated report, so you know which defect is causing the biggest efficiency loss and which one can wait. In the Exeter postcode area, where homedata.co.uk records show the average sold price at £336,000 between April 2025 and March 2026, the right evidence can save time during a purchase or renovation plan.
Accurate results depend on conditions as much as the camera itself. We recommend a visit between October and March, with at least a 10C difference between inside and outside and the heating on for 2 hours before arrival. That setup gives the infrared image enough contrast to show real heat movement, rather than a flat picture with too little variation. If you want a clear view of insulation gaps, draught paths and hidden moisture signals in Exeter, the right weather window makes all the difference.
Thermographic Survey In London
Thermographic Survey In Plymouth
Thermographic Survey In Liverpool
Thermographic Survey In Glasgow
Thermographic Survey In Sheffield
Thermographic Survey In Edinburgh
Thermographic Survey In Coventry
Thermographic Survey In Bradford
Thermographic Survey In Manchester
Thermographic Survey In Birmingham
Thermographic Survey In Bristol
Thermographic Survey In Oxford
Thermographic Survey In Leicester
Thermographic Survey In Newcastle
Thermographic Survey In Leeds
Thermographic Survey In Southampton
Thermographic Survey In Cardiff
Thermographic Survey In Nottingham
Thermographic Survey In Norwich
Thermographic Survey In Brighton
Thermographic Survey In Derby
Thermographic Survey In Portsmouth
Thermographic Survey In Northampton
Thermographic Survey In Milton Keynes
Thermographic Survey In Bournemouth
Thermographic Survey In Bolton
Thermographic Survey In Swansea
Thermographic Survey In Swindon
Thermographic Survey In Peterborough
Thermographic Survey In Wolverhampton
Infrared thermal imaging to detect heat loss and hidden defects
Get A Quote & BookMost surveyors take 1-2 days to quote.
We'll price your survey in seconds.
Most surveyors take 1-2 days to quote.
We'll price your survey in seconds.
Homemove is a trading name of HM Haus Group Ltd (Company No. 13873779, registered in England & Wales). Homemove Mortgages Ltd (Company No. 15947693) is an Appointed Representative of TMG Direct Limited, trading as TMG Mortgage Network, which is authorised and regulated by the Financial Conduct Authority (FRN 786245). Homemove Mortgages Ltd is entered on the FCA Register as an Appointed Representative (FRN 1022429). You can check registrations at NewRegister or by calling 0800 111 6768.
We use cookies to show you personalised content and improve your experience of our website. Find out more in our Privacy policy and Cookie policy.
