Thermographic Survey in Stroud

Stroud's housing stock deserves a closer look because it is mixed and old in the same breath. The district profile shows 31.9% semi-detached homes, 29.8% detached, 28.1% terraced and 9.6% flats, with a strong historic core in the town and nearby villages. Many homes date from before 1919, then there is a layer of inter-war semis, post-war council estates and private developments, and then newer infill. Each era was built to different insulation standards, so a single thermal image can reveal very different patterns from one street to the next.

Solid Cotswold stone walls behave differently from later cavity construction. In the town centre and the conservation areas around the canal, traditional limestone walls and lime mortar can show broad cold zones where the fabric is simply not designed to trap heat the way a modern wall does. Red brick Victorian and Edwardian houses can also hide weak points at lintels, floor edges and roof junctions, while rendered properties may conceal patchy retrofits. The local geology adds another layer, because Lias Clay and Fuller's Earth Clay bring a moderate to high shrink-swell risk in some parts of the district, which can open gaps around openings and make cold spots more obvious.

home.co.uk listings show that the newer end of the market still benefits from thermal checking. The Steppes in Nailsworth, GL6 0JH is listed from £475,000, Littlecombe in Dursley, GL11 4BA from £265,000, Highfields in Stroud, GL5 2HX from £399,995 and The Maples in Stonehouse, GL10 2NG from £369,995. New-build homes should perform well on paper, yet we still find loft hatch leaks, service penetrations and hidden gaps at junctions. A thermal survey gives you a clear picture before small defects become long-term heat loss.

Thermal images use a colour scale that makes temperature differences easy to read. Cooler areas often appear blue or purple, while warmer zones move towards red or white, depending on the camera settings and the surface being scanned. A cold line around a window frame can point to draughts, while a colder ceiling patch may suggest missing loft insulation or a thermal bridge at a structural junction. We annotate every image so the report explains what the pattern means in plain language.

False readings can appear when a wall has just caught the sun, when rain has cooled an elevation, or where a reflective surface sends back an artificial signal. That is why our thermal imaging specialists check the building orientation, recent weather and heating pattern before calling something a defect. In Stroud, where steep valley streets and south-facing stone walls can warm unevenly, that context matters. It stops a normal temperature shift from being mistaken for a fault that is not really there.

Our thermal imaging surveys in Stroud start from £300. The final price depends on the property size, layout and how much of the home needs scanning, but the work itself stays focused on one outcome: a clear view of where heat is escaping or where hidden defects may be forming. A flat in central Stroud is usually quicker to survey than a larger detached house in the wider district, while homes with loft rooms, extensions or awkward rooflines take longer because there are more junctions to check.

Each survey includes external and internal infrared scans, annotated images and practical recommendations you can act on. The survey itself usually takes 1-2 hours, then we analyse the thermal data and explain the findings in a report that is easy to follow. We book best between October and March, ask for the heating to be on for at least 2 hours before arrival, and look for a minimum 10C difference between inside and outside so the results are sharp and reliable.