Infrared thermal imaging to detect heat loss and hidden defects








Our thermal imaging specialists carry out detailed infrared surveys across Gillingham, Dorset, from the High Street conservation area and St Mary's Lane to newer homes on Wyke Road. We detect heat escaping through roofs, walls, floors and windows, then show the problem in a way that is easy to read. The survey is non-invasive and non-destructive, so it suits live-in homes, investment properties and listed buildings alike. Hidden defects often sit behind a fresh coat of paint. Infrared imaging brings them into view.
homedata.co.uk records show an average house price of £329,484 in Gillingham, with 104 sales in the last 12 months, so energy loss is not a small issue when owners are deciding what to fix first. The local stock is mixed too, with detached homes at 32.8%, semi-detached at 30.1%, terraced homes at 24.3% and flats or maisonettes at 12.3%. Newer homes at Wyke Farm on Wyke Road, SP8 4NW, and Lodden View, SP8 4FX, sit alongside older stone and brick properties in the town centre. That mix gives thermal imaging plenty to reveal.

12,020
Population (2021 Census)
5,090
Households (2021 Census)
£329,484
Average House Price
£465,602
Detached Average
£290,146
Semi-detached Average
£246,269
Terraced Average
£165,867
Flats Average
104
12-Month Sales
-0.3%
Overall 12-Month Change
-0.8%
Detached 12-Month Change
-0.1%
Semi-detached 12-Month Change
+0.2%
Terraced 12-Month Change
-0.4%
Flats 12-Month Change
32.8%
Detached Homes
30.1%
Semi-detached Homes
24.3%
Terraced Homes
12.3%
Flats/Maisonettes
19.3%
Pre-1919 Homes
11.2%
1919-1945 Homes
29.8%
1945-1980 Homes
39.7%
Post-1980 Homes
Using listing data from home.co.uk and property data from homedata.co.uk
From the town-centre conservation area to the newer plots on the edge of Gillingham, infrared scanning shows where heat is escaping and where moisture is sitting in the fabric. Our surveyors detect missing loft insulation, collapsed cavity fill, cold bridging at lintels, air leakage around doors and windows, and unusual temperature patterns around pipework or electrical circuits. We also look for hidden damp and moisture ingress, which often appears as a cool patch before staining becomes obvious. The method is especially useful where access is limited or where opening up the building would be disruptive.
The camera reads surface temperature variations to 0.1C accuracy, so fine differences can be mapped across brick, stone, render and timber. That matters in Gillingham because local stone, greensand, limestone and red brick all cool at different rates, especially around St Mary's Lane, Newbury and the High Street. We can also pick up underfloor heating faults, missing insulation in roof voids, and thermal leaks near chimney breasts or service penetrations. Even small defects can show as clear bands or hotspots when the building is at the right temperature.

Gillingham's housing mix gives us a wide range of thermal patterns to read. homedata.co.uk records show that detached homes make up 32.8% of the stock, semi-detached homes 30.1%, terraced homes 24.3% and flats or maisonettes 12.3%. The age profile is just as varied, with 19.3% built before 1919, 11.2% between 1919 and 1945, 29.8% between 1945 and 1980 and 39.7% after 1980. That spread means one street can hide solid masonry, early cavity wall construction and modern insulated builds all within a short drive of the town centre.
Older homes around High Street, St Mary's Lane and Newbury often use greensand or limestone, sometimes with brick dressings, timber floor joists and lime mortar. Victorian and Edwardian houses in red brick usually have slate roofs, timber sash windows and suspended timber floors, which are common places for draughts and cold spots to appear. Mid-20th century homes can have cavity walls, but early wall ties, incomplete insulation and later alterations leave clear thermal signatures. On the newer side, Wyke Farm on Wyke Road, SP8 4NW, and Lodden View, SP8 4FX, are built with modern cavity wall construction, yet loft hatches, window junctions and service penetrations still leak heat.
Ground conditions add another reason to scan carefully. Gillingham sits over Gault Clay, Upper Greensand and Chalk, and the clay brings moderate to high shrink-swell potential that can stress foundations after wet and dry spells. The River Stour also raises fluvial and surface water flood risk in low-lying parts of the town, so damp and heat loss can overlap in the same area. A thermal survey helps separate structural movement, draughts and moisture cooling, which is valuable in a place with listed buildings such as St Mary the Virgin Church and the wider conservation area.
A thermal survey shows where warmth is leaving the building, not just that it is leaving. In many homes, around 25% of heat escapes through the roof, 35% through walls and 15% through windows, so a single infrared visit can point to the biggest losses before money is spent on works that do not move the needle. That usually leads to practical repairs such as topping up loft insulation, sealing draughts, repairing cavity gaps or dealing with broken window seals. The report links each cold area to a likely cause, which makes energy improvements easier to prioritise.
For Gillingham owners, the figures matter because homedata.co.uk records show detached homes averaging £465,602 and terraced homes averaging £246,269, with the overall market at £329,484. If a house near the High Street or a newer home on Wyke Road is losing heat through one weak junction, a focused repair can be more useful than a broad upgrade. Thermal results also feed neatly into EPC improvement plans, especially where a property needs loft work, ventilation fixes or cavity wall attention. Small jobs often come first because they are simpler and cheaper than full replacements.

Choose Gillingham, Dorset, and send us your quote request through the booking form. We confirm property type, access points and any areas that need extra attention, such as a roof void or an extension.
October to March gives the strongest thermal contrast. We look for at least a 10C difference between inside and outside so the camera can read heat paths clearly.
Keep the heating on for at least 2 hours before the appointment. That steady background temperature helps reveal draughts, insulation gaps and cold bridges.
Our surveyors carry out external and internal infrared scans, then inspect roofs, windows, floors and service penetrations. The survey is non-invasive and non-destructive, so it suits both ordinary homes and listed buildings in the conservation area.
We review each frame for reflections, recent sunlight, rain cooling and other false readings before we label a defect. Every useful image is annotated so the reason for the temperature change is clear.
You get thermal images with practical recommendations for insulation, ventilation, draught sealing and any follow-up checks. Most surveys take 1-2 hours depending on property size and layout.
Thermal images use colour to show temperature differences rather than showing the home as a normal photograph. Cooler areas usually appear blue, green or purple, while warmer areas move through red, orange and white. In a stone house near St Mary's Lane, a blue patch might mean missing insulation, a damp bridge or a draught, so the colour alone is never the whole story. We read the building as a system, not as a single image.
False readings need careful handling. Reflections from glass, sunlight on a south-facing wall, wet brickwork after rain and a warm pipe behind plaster can all distort the picture if they are not checked properly. The camera detects surface temperature variations to 0.1C accuracy, but the report depends on experience as much as equipment. Our surveyors cross-check each result against the building fabric, the weather conditions and the way the property was heated before the scan.
That interpretation matters in Gillingham because the town contains solid masonry, cavity wall homes and newer insulated properties all within the same settlement. A 1940s house near the centre will not cool in the same way as a post-1980 home on the edge of town, and a lime-mortared wall in the conservation area behaves differently again. We annotate each image so you can see which issue needs insulation, which needs ventilation and which simply reflects how the building was built. Clear explanations make the next repair easier to plan.
Around High Street, St Mary's Lane and Newbury, we often see single-glazed windows, uninsulated loft spaces, cold roof junctions and draughty suspended floors in older homes. Victorian and Edwardian houses with red brick walls can also show colder bands above lintels where cavity fill is absent or has settled unevenly. Listed buildings near St Mary the Virgin Church need extra care because lime mortar, stone walls and later extensions do not respond to heat loss in the same way. Thermal imaging helps us separate a genuine defect from the way the materials naturally cool.
On newer sites such as Wyke Farm on Wyke Road and Lodden View off SP8 4FX, the pattern shifts. We may find gaps around loft hatches, missing seals at uPVC windows, insulated cavities interrupted by wall ties, or underfloor heating circuits that are not warming evenly. In some parts of town, Gault Clay and heavy rainfall combine to leave cool staining on low walls where drainage or render has failed. Even recent homes can show snagging items that matter for comfort and running costs.

It can detect heat loss through roofs, walls, floors and windows, as well as missing or collapsed cavity insulation, cold bridging, air leakage, damp-related cooling, underfloor heating faults and electrical hotspots. In Gillingham, that often means checking older stone homes around the High Street against newer cavity-wall houses on Wyke Road. The camera shows surface temperature patterns, then our report explains what caused them.
Our thermographic surveys in Gillingham start from £300. The final price depends on property size, access and layout, so a compact flat, a terraced home near the centre and a larger detached house will not take the same amount of time. The fee covers external and internal scans, analysis and a written report with practical recommendations.
October to March is the best window because the temperature difference between inside and outside is easier to capture. We look for at least a 10C difference, and the heating should have been on for at least 2 hours before the visit. Cold, cloudy conditions usually give the clearest contrast on the camera.
Most surveys take 1-2 hours depending on the size and layout of the property. A flat or small terraced house in Gillingham may be quicker, while a large detached home or a listed building with extensions can take longer. The analysis happens after the visit, so the report is based on checked and annotated thermal images.
It can show the temperature patterns linked to damp, such as cool patches on masonry, moisture ingress around windows or cooling behind plaster. It does not replace moisture testing, so we use it as a strong indicator rather than the final word. In a town with River Stour flood risk and porous stonework, that early warning is useful.
A little preparation helps a lot. Keep the heating on for at least 2 hours, avoid opening windows just before the appointment, and close curtains or blinds if sunlight might hit the walls we are scanning. It also helps if you let us know about recent repairs, leaks or rooms that need closer inspection.
Yes, it is useful at both ends of the age range. In Gillingham's conservation area around High Street, St Mary's Lane and Newbury, it lets us inspect without disturbing historic fabric. On newer homes at Wyke Farm or Lodden View, it highlights insulation gaps, bridging or snagging that can affect comfort and energy use.
Our thermographic survey price in Gillingham starts from £300. That includes the infrared visit, external and internal scans, image review and a report that explains the cause of each cold area or hotspot. homedata.co.uk records show an average house price of £329,484, so many owners want clear guidance before spending on insulation, windows or repairs. A focused thermal report gives that guidance in plain language.
For a typical Gillingham property, the survey usually takes 1-2 hours depending on size and layout. Detached homes make up 32.8% of the stock, so larger houses often need more scanning than a compact flat or a terraced house near the centre. Older solid-wall properties around High Street, St Mary's Lane and Newbury can take longer to interpret because stone, lime mortar and later repairs cool at different rates. That extra context helps separate a real defect from a normal material pattern.
Best results come from October to March, with at least a 10C difference between inside and outside and heating on for 2 hours beforehand. Those conditions give stronger thermal contrast, which makes draughts, cold bridges and hidden gaps easier to map. If you are planning insulation work, window repairs or a sale in Gillingham, the report gives a practical starting point before bigger spending begins. The local stock is varied enough that a good thermal survey can save time as well as money.
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Infrared thermal imaging to detect heat loss and hidden defects
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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.