Infrared thermal imaging to detect heat loss and hidden defects








Infrared cameras show where Paisley homes leak heat. Our thermal imaging specialists carry out detailed surveys across PA1, PA2 and the town centre, mapping cold spots that a visual inspection misses. The camera reads surface temperature changes to 0.1C, so we can spot gaps around windows, missing loft insulation and hidden damp patterns. The survey is non-invasive and non-destructive, so the property stays intact while the evidence is gathered.
homedata.co.uk records show the average property price in Paisley is £151,858, with a 1.2% increase over the last 12 months and 1,008 sales completed in that period. home.co.uk lists an average asking price of £158,162, with detached homes at £280,000 sold and £290,250 asking, semi-detached homes at £182,500 sold and £194,500 asking, terraced homes at £135,000 sold and £143,750 asking, and flats at £95,000 sold and £100,000 asking. That spread matters in a town with stone tenements in Oakshaw, flats near the centre, and newer homes at Hawkhead Gardens, Dykebar Park, Glenbrae Gardens and Millhouse. A thermal survey shows where heat escapes before bills climb.

£151,858
Average House Price (homedata.co.uk)
£158,162
Average Asking Price (home.co.uk)
1.2%
12-Month Price Change (homedata.co.uk)
1,008
Property Sales in the Last 12 Months (homedata.co.uk)
33.7%
Renfrewshire Semi-Detached Share
28.5%
Renfrewshire Terraced Share
26.5%
Renfrewshire Flats Share
11.3%
Renfrewshire Detached Share
Using listing data from home.co.uk and property data from homedata.co.uk
Heat loss rarely shows itself on a quick walk-through. In a Paisley tenement on Castlehead or a semi on the edge of PA2, our scanners highlight roof leaks, uninsulated voids, draughts around doors and windows, cold bridging at junctions and patchy cavity fill. The same pass can also flag underfloor heating faults and electrical hotspots where a circuit is running warmer than it should. Because the images are thermal rather than visual, a problem can stand out before staining or decay appears.
Paisley has areas at risk of flooding from the River Cart and its tributaries, including the White Cart Water, Espedair Burn and St Mirin Burn. Where moisture is entering a wall or floor, the thermal pattern often tells the story before the plaster does. We look for cooler, damp-affected areas, warmer air leaking through failed seals, and temperature differences that hint at poor insulation behind a finished surface. The report then turns those patterns into plain next steps.

Renfrewshire, which includes Paisley, is a housing mix built for thermal surveys. The 2021 Census figures for Renfrewshire show 33.7% semi-detached homes, 28.5% terraced homes, 26.5% flats, maisonettes or apartments, and 11.3% detached houses. That spread points to a lot of external walls, roof edges and junctions where heat can leak away. A timber-frame new build and a sandstone tenement do not lose heat in the same way, so we read each property differently.
Paisley’s older stock matters here. Around Oakshaw, Castlehead and the town centre, many homes sit within conservation areas or among listed buildings, where solid walls, slate roofs and older joinery are common. Solid masonry behaves differently from modern cavity wall construction, and retrofitted insulation can leave cold spots if it has been installed unevenly. Our surveys pick up those gaps, plus the draught paths that often hide behind sash windows, skirting boards or a loft hatch.
New build pockets need checking too. home.co.uk listings show Hawkhead Gardens in PA2 7BB from £280,000 to £375,000, Dykebar Park in PA2 7BB from £269,995 to £429,995, Glenbrae Gardens in PA2 8BE from £229,995 to £304,995 and Millhouse in PA1 1QZ from £149,995 to £209,995. That shows Paisley’s stock is not all historic, and many modern homes are timber frame with masonry or rendered finishes. Those homes can perform well, but thermal imaging still finds missed insulation, service penetrations, incomplete seals and ventilation imbalance.
Thermal imaging turns heat loss into something you can see. In many homes, around 25% of heat can be lost through the roof, 35% through walls and 15% through windows, so a cold image often points straight to the biggest losses. We use the scans to identify where loft insulation is thin, where cavity fill has collapsed and where draught proofing can cut wasted energy. That helps you decide whether the next step is a small repair or a bigger upgrade.
For Paisley homeowners, the value is practical. A flat in Millhouse or a terrace near the town centre may only need targeted draught proofing, while a sandstone villa in Castlehead could need loft top-ups, window seal repairs or a more detailed check of wall performance. Because the report ranks the findings, you can compare quick fixes against more involved work before spending on insulation or refits. That matters in a market where the average sold price is £151,858 and the average asking price is £158,162.

Choose the thermographic survey and tell us the address, property type and any known problem areas, such as a cold room or damp patch.
The strongest results come from October to March, with the heating on for at least 2 hours before we arrive and a minimum 10C difference between inside and outside.
Our surveyors map rooflines, walls, windows, junctions and service points from outside, then compare those readings with the room-by-room pattern inside.
We inspect ceilings, floors, radiators, pipework and known trouble spots, using the camera to pick up surface temperature changes to 0.1C.
The files are checked for false readings from sunlight, reflections or recently opened doors and windows, then annotated so each anomaly is explained.
You get a clear report with thermal images, notes on likely causes and practical recommendations for insulation, sealing or follow-up investigations.
Thermal images look simple at first glance, but the colour scale needs context. Cold areas usually show as blue or purple, while warmer spots move through yellow, red and white depending on the camera settings. A dark band across a gable wall in Oakshaw can mean heat loss, or it can be a shadow from a nearby building, so we always read the picture against the construction and the time of day. That is why a good report never leaves you with the image alone.
False readings matter. Sunlight can warm a brick wall, glass can reflect infrared energy, and a recently opened door can leave a bright or cool edge that looks more dramatic than it is. Wet surfaces also cool differently, which is useful when we are checking for damp after rain near the White Cart Water or the Espedair Burn. We mark each image with notes, arrows and temperature references so the cause is easier to follow.
In Paisley’s sandstone and brick housing stock, the detail matters even more. Solid walls cool fast after sunset, while timber frame and render systems can hide air leaks at junctions and penetrations. Our surveyors compare similar rooms, external walls and roof slopes, then explain whether a spot is likely to be insulation loss, a thermal bridge or a moisture issue. That makes the report useful long after the camera has been switched off.
Older Paisley homes often show the same patterns. In the town centre, Oakshaw and Castlehead, we regularly look for dampness, timber decay, roof defects, failed pointing, missing loft insulation and cold bridging around solid walls or chimney breasts. Single-glazed windows and ageing seals can add draughts, while patch repairs on sandstone can create different temperature bands across the façade. A thermal survey picks up those differences before they become visible on the plaster or ceiling line.
Newer homes can hide different faults. At Hawkhead Gardens, Dykebar Park, Glenbrae Gardens and Millhouse, we pay close attention to insulation continuity, ventilation balance, service penetrations, window fittings and roof junctions. Timber frame construction with masonry or rendered finishes can perform well, but a small gap around a pipe or loft hatch still sends warm air out. Where a property sits near flood-prone parts of the town, moisture readings and thermal patterns also help us separate damp from simple condensation.

It detects heat loss through roofs, walls, floors and windows, missing or collapsed cavity insulation, air leakage around frames and junctions, and cold patterns linked to damp. We also spot underfloor heating faults and some electrical hotspots. The camera reads surface temperature changes to 0.1C, so the smallest anomalies show up clearly. The survey is non-invasive, so nothing needs to be opened up during the visit.
Our thermographic surveys in Paisley start from £300. The final price depends on property size, layout and whether the home needs a longer internal and external scan. That fee includes the visit, the infrared imaging and a written report with annotated findings. For many buyers and owners in PA1 and PA2, it is a small step before committing to insulation or damp works.
October to March gives the best thermal contrast, because the outside air is usually colder and the heat loss patterns stand out. We look for at least a 10C difference between inside and outside. Heating should be on for at least 2 hours before the survey, so the building fabric has warmed up. Clear, dry conditions make the readings easier to interpret.
Most Paisley properties take 1-2 hours, depending on size and how many rooms need checking. A flat in Millhouse can be quicker than a larger detached home near Hawkhead Gardens or a sandstone villa in Castlehead. We then spend time analysing the images and writing the report. That means the visit is short, but the findings are properly checked.
Yes, it can show the temperature patterns that often sit with damp, condensation or moisture ingress. We can spot cooler patches on a wall, around a chimney breast or near a floor edge, then relate them to likely causes such as rain penetration or failed seals. Thermal imaging does not replace a damp specialist if a major issue is suspected. It works best as an early warning and a guide to where further checks should focus.
We ask for the heating to be on for at least 2 hours before arrival and for access to loft hatches, problem rooms and the boiler or heating controls where possible. Curtains and blinds may need opening in rooms we inspect, especially on colder external walls. Try not to open windows or doors just before the survey, because that can distort the temperature readings. If you have a known cold patch or stain, point it out at the start.
Yes. New homes such as those at Hawkhead Gardens, Dykebar Park, Glenbrae Gardens and Millhouse can still have insulation gaps, blocked ventilation or poor seals around services. Thermal imaging is useful on new builds because it can pick up issues before they become stubborn comfort problems. It also helps if you are checking a snagging list after handover.
From £80
Energy rating for a home that needs a clear starting point before upgrade work
From £400
Practical survey for modern or conventional homes that need a fuller check
From £650
Detailed survey for older or altered homes with more complex construction
From £1,000
Legal support for a purchase or sale alongside your property checks
Thermographic surveys in Paisley start from £300, and that price suits many flats and smaller houses where the main aim is to spot heat loss before work begins. The fee covers external and internal infrared scans, image analysis and a report with clear notes on what the camera saw. Compared with Paisley’s average sold price of £151,858 and average asking price of £158,162, it is a modest outlay for a property that may need insulation, draught proofing or a damp check. For a buyer in PA1 1QZ or a homeowner near the White Cart Water, that early read can stop guesswork.
Larger homes, complex layouts and properties with awkward rooflines can take longer to scan, so the final quote can move up with size and access. A sandstone home in Castlehead, a terrace in the town centre or a newer house in PA2 7BB will not all need the same level of attention. We price the visit around the inspection time and the reporting work, not just the postcode. The key point is that the survey is most accurate in cold weather, with the heating running for at least 2 hours and a minimum 10C indoor-outdoor difference.
Reports follow the images, so you can act on what matters first. Some findings call for a simple fix such as draught sealing or loft top-up, while others point to a builder, damp specialist or heating engineer. If you want the strongest results, book between October and March and avoid a wet, sunny afternoon that can distort surface readings. That timing gives the camera the contrast it needs and leaves you with a clearer view of where energy is escaping.

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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.