Thermographic Survey in Glasgow

Glasgow has a very mixed housing profile, and the numbers tell their own story. Flats, maisonettes or apartments make up 54.9% of homes, terraced houses account for 19.3%, semi-detached homes for 14.8%, detached homes for 6.9%, and 4.1% fall into other categories. That mix means we regularly inspect compact city flats near G1, traditional sandstone homes in the West End, and wider suburban properties in G13 and G41, each with different heat-loss patterns and defect risks.

Many homes in Glasgow date from before 1919, which matters because older tenements and villas were built before modern insulation standards were in place. Later phases from 1919 to 1945 introduced inter-war estates, while 1945 to 1980 brought large social housing programmes, multi-storey blocks and suburban layouts that can hide thermal weak points at flat-roof junctions and concrete panels. Post-1980 development added more private housing and regeneration schemes, including apartments and houses around the Clyde Waterfront and the city centre, yet even newer homes can show gaps where insulation was interrupted by service runs or poor workmanship.

Local materials also shape what we see on screen. Glasgow is strongly associated with red and blonde sandstone, especially in Victorian and Edwardian tenements and churches, while brick, render, harling and slate roofs appear across later housing and modern rebuilds. Conservation areas in the City Centre, the West End and the South Side often contain listed buildings with solid walls, timber sash windows and narrow loft spaces, so thermal imaging helps distinguish genuine fabric loss from normal surface variation. On top of that, areas with glacial till or boulder clay can carry moderate to high shrink-swell risk, which can show up as movement cracks that let cold air and moisture in.

Thermal images use a colour scale to show surface temperatures. Cooler areas often read blue or purple, while warmer zones move through yellow, orange, red and white, depending on the palette and the temperature difference being measured. A cold patch around a skirting board in a tenement off Great Western Road may mean air leakage, but a similar patch near a bathroom wall could also point to moisture, so the image has to be read in context.

False readings can happen, which is why we never hand over raw images without explanation. Sunlight on a south-facing wall, reflections from glass, or residual warmth from a radiator can distort the picture, especially if the scan is done after a bright spell on Pollokshaws Road or along the Broomielaw. Our surveyors account for orientation, weather and heating behaviour, then annotate each frame so you can see why a feature matters and how confident we are in the finding.

Dampness is one of the most common defects we come across in Glasgow homes, especially in older tenements where gutters, downpipes, pointing or flashings have failed. Thermal imaging helps us spot the cold, damp patches that sit behind plaster, around chimney breasts or at the base of external walls, where condensation and penetrating moisture can look very similar from the outside. In sandstone properties across Garnethill, Strathbungo and the West End, that difference matters because the repair route is not the same.

Roof and timber defects often show up as temperature anomalies too. Slipped slates, worn felt, broken leadwork and poor loft insulation can all create clear cold lines under the roof covering, while wet rot or dry rot can follow persistent moisture in joists, rafters and window frames. We also see draughts around failed double glazing units, ageing timber sash windows and gaps in older conversions, which is common in flats and maisonettes that make up more than half of Glasgow’s housing stock.

Structural movement and ground-related issues deserve a closer look in some parts of the city. Glasgow’s geology includes Carboniferous rocks, glacial till and alluvial deposits, and that can mean shrink-swell movement where clay content is higher, especially after periods of dry weather followed by heavy rain. Properties near the Clyde, Kelvin, White Cart Water and Black Cart Water can also face flood-related damp or water ingress, so a thermal survey can sit alongside a wider condition assessment when the building has a history of cracking or recurrent moisture problems.

Heat loss tends to concentrate in the same places again and again. Roofs can account for around 25% of heat loss, walls around 35%, and windows around 15%, so our reports focus on the building fabric that has the biggest effect on comfort and running costs. In a sandstone flat in Hillhead or a terraced house in Govan, those numbers usually show up as clear cold bands on the thermal image, especially if insulation has never been upgraded.

The value of the survey is not just spotting the problem, it is ranking the fixes. A loft top-up, better draught sealing, repaired cavity insulation or improved seals around windows and doors can often reduce wasted heat without major disruption, and that helps you decide where to spend first. For owners comparing a pre-1919 tenement with a newer apartment at City Wharf or Richmond Gate, the thermal report makes the difference between broad assumptions and measured evidence.

Energy performance also links back to market value and day-to-day comfort. homedata.co.uk records show Glasgow’s average house price at £206,456 in May 2026, with detached homes at £371,289, semi-detached at £269,760, terraced homes at £206,936 and flats at £165,960. Sales volume reached 10,750 in the previous 12 months, and with the overall market up 3.0%, even small efficiency improvements can make a property easier to live in and clearer to present when you come to sell.

Thermal imaging surveys in Glasgow start from £300, and the price rises with property size, layout and access. A flat in the city centre or a compact terrace in G31 usually takes less time than a larger detached home in G13, while older or listed buildings can need more careful scanning because of thicker walls, converted lofts and mixed construction. Our quote covers the survey visit, external and internal infrared scans, and an annotated report with practical recommendations.

Accuracy depends on the right conditions. October to March tends to give the clearest contrast, the heating needs to be on for at least 2 hours, and there should be a minimum 10C temperature difference between inside and outside. That combination helps us separate real defects from background noise, so you get findings you can act on with confidence rather than a blurred set of images that leave more questions than answers.

Glasgow’s housing is spread across very different neighbourhoods and building eras, so the same thermal problem rarely appears twice in the same way. A sandstone tenement in Dowanhill, a post-war block in Drumchapel and a new apartment at 200 Broomielaw all move heat differently, because wall thickness, insulation type and detailing vary so much. That is why a generic inspection often misses the hidden routes where warmth escapes.

New-build schemes give a useful contrast. The Botanics on Queen Margaret Drive, Jordanhill Park on Southbrae Drive, City Wharf at 200 Broomielaw, Riverford Gardens on Pollokshaws Road and Richmond Gate on London Road show how modern homes are being added across G12, G13, G1, G41 and G40. Even in those developments, thermal imaging can pick out weak points around glazing, roof junctions or service penetrations, so newer construction does not mean flawless construction.

Older homes deserve even more attention because they often mix historic fabric with later alterations. A tenement converted in the West End may have original sandstone walls, replacement windows and a loft retrofit that left gaps at the eaves, while a South Side villa may have had extensions added at different times, each with different insulation standards. Our surveyors look at the whole envelope, not just the obvious cold spot, because the real loss can sit a few metres away from where the stain appears.

Our report is written for homeowners, buyers and anyone planning repairs in Glasgow. You receive annotated thermal images, plain-English explanations and practical recommendations that point you towards the right next step, whether that is a roofer, a damp specialist, a glazing repair or an insulation contractor. The aim is to turn a set of infrared readings into decisions you can act on.

Clear labelling matters because thermal scans can be misread without context. A warm patch on a wall in a flat near Garnethill might be radiator bleed, while a cool band below a bay window in Hyndland may be a draught path or a missing insulation section, and the report explains the difference. That makes it easier to compare findings against other survey results, mortgage queries or repair quotes.

Buyers often use the thermal report alongside a standard building survey or EPC. That combination is useful in a market where homedata.co.uk records show 10,750 sales in the last 12 months and where older homes, flats and terraced houses make up most of the stock. If you are weighing up a pre-1919 tenement, a 1960s flat or a newer townhouse, the thermal images show where the hidden running costs are likely to sit.