Infrared thermal imaging to detect heat loss and hidden defects








Our thermal imaging specialists carry out detailed infrared surveys across Havant, from Harbour Views by Redrow on Bartons Road, PO9 to homes where draughts, cold bridging and hidden moisture never show on a standard walk-through. Infrared cameras read surface temperature variations to 0.1C accuracy, so we can see where heat is escaping long before the room feels cold. The survey is non-invasive and non-destructive, which makes it useful for buyers, owners and landlords who want clear evidence rather than guesswork.
homedata.co.uk records show that Havant has seen 740 recently sold properties in the last 12 months, with an average sold price of £309,258. Detached homes averaged £549,218, semi-detached homes averaged £331,962, and terraced homes averaged £258,720, so the local market covers a wide range of building types and budgets. That spread matters because heat loss does not behave the same way in every property. A thermal scan gives you a practical view of where energy is being wasted, and which upgrades are worth doing first.

Infrared cameras pick up problems that sit behind plaster, render and paint. Our surveyors detect heat loss through walls, roof spaces, floors and windows, then look for missing or collapsed cavity wall insulation, cold bridging at junctions, air leakage around doors and frames, hidden damp, moisture ingress, underfloor heating faults and electrical hotspots. The camera only sees temperature patterns, so the analysis matters just as much as the image.
At Harbour Views on Bartons Road, PO9, a scan can show whether a newly built junction is performing as it should or whether a small gap is breaking the thermal line. The same method works in resale homes across Havant, where an unseen leak behind a stud wall or a poor seal around a loft hatch can turn into higher bills and cooler rooms. Because the process is quick, precise and non-destructive, it is a strong first step before insulation work or repair work starts.

The local housing market is broad enough to make thermal checks valuable on almost every type of home. homedata.co.uk records show average sold prices in Havant of £549,218 for detached homes, £331,962 for semi-detached homes and £258,720 for terraced homes, with 740 sales in the last year. That spread suggests different layouts, different fabric construction and different levels of exposure, all of which affect how heat moves through a property. A thermal survey does not care about the asking story, only the physics.
New-build homes also benefit from a scan, not just older stock. Harbour Views by Redrow on Bartons Road, PO9 sits on the edge of the South Downs National Park with the Hampshire coastline nearby, so a fresh build there still needs a close look at roof junctions, service penetrations and door thresholds. Small defects in a modern envelope can be easy to miss during a standard inspection, yet they can still bleed heat out of the property every day. That is where infrared imaging gives a sharper result than a visual check alone.
Wind exposure and coastal moisture can make small faults show up faster in Havant than in a more sheltered setting. A draught around a window frame may look minor on paper, but over a heating season it can affect comfort in a bedroom, landing or living room. Thermal imaging helps separate a one-off cold patch from a repeated defect, which means the repair plan can be focused rather than broad and costly. It also gives you evidence to use when discussing insulation, sealing or refurbishment work.
A thermal image turns invisible heat loss into evidence you can act on. In many homes, around 25% of heat is lost through the roof, 35% through walls and 15% through windows, so the scan often points directly to the parts of the building fabric that matter most. Once those weak points are mapped, the next step is usually simple, such as topping up loft insulation, repairing cavity fill, replacing failed seals or sealing a draught path.
For a Havant property around the local average sold price of £309,258, wasted heat can mean a noticeable cost over a long winter. At Harbour Views on Bartons Road, PO9, a survey can check whether the thermal envelope is performing as intended or whether a hidden gap is reducing the benefit of the build specification. The findings can also support energy efficiency upgrades and help you decide where an EPC improvement is most achievable. Small fixes often start with the clearest thermal patterns.

Start with a quote for your Havant property and choose a time that suits access to the rooms, loft and external elevations. Our team will confirm the survey scope before the visit.
Thermal surveys work best from October to March, when there is 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 reaches a stable temperature.
Our surveyor completes external and internal infrared checks, usually in 1-2 hours depending on the size of the property. The aim is to capture clear temperature contrast across the walls, roof, floors, windows and service points.
Each thermal image is reviewed for cold spots, heat trails, moisture signatures and possible false readings from reflections or sunlight. Findings are compared with the property layout so we can explain what the camera is actually showing.
We mark up the images, identify the likely cause of each issue and set out practical next steps. That can include insulation work, draught proofing, repairs or a follow-up inspection where needed.
The final report is written in plain English and delivered with the thermal evidence attached. You get a record that is useful for budgeting, negotiating or planning energy-saving improvements.
A thermal image uses colour to show temperature differences across a surface. Cold areas usually appear blue or purple, while warmer areas move towards red, orange or white depending on the camera scale. A colder patch on a wall can point to missing insulation, a draught path or a damp problem, but the image only becomes useful once the building detail is read properly. Our surveyors explain each frame so you are not left trying to interpret the palette alone.
Direct sun can distort a reading, which is why timing and weather matter so much. On a bright afternoon in PO9, a south-facing wall can hold solar gain and hide a cold bridge, while a reflective finish near a window can look colder or warmer than it truly is. That is why our thermal imaging specialists prefer the cooler months and a strong internal-external temperature contrast. The image is only half the story.
Every report is annotated with notes that point to the likely cause and the practical next step. If a roof line shows a repeated cold band, we will say so plainly and link it to the most likely weak point, such as insulation interruption or air leakage at the junction. If the colour change looks like moisture rather than heat loss, we flag that too. The goal is simple: turn the image into a repair plan you can use.
Missing loft insulation, poorly sealed loft hatches and draughts at floor-to-wall junctions are among the issues we often pick up in Havant homes. The local market data makes the point clearly, because terraced homes average £258,720, semi-detached homes average £331,962 and detached homes average £549,218, which means the building forms we inspect are not all the same. A scan that works well in one property can reveal a different problem in the next.
At Harbour Views by Redrow on Bartons Road, PO9, our surveyors look closely at service penetrations, window surrounds and roof details where a small gap can let warm air escape. Around other homes in the wider Havant area, a colder-than-expected window reveal or a patchy roof edge often points to failed seals, incomplete insulation or a thermal bridge at the junction. Those are the findings that matter most because they point directly to the fix, not just the symptom.

A thermal imaging survey can detect heat loss, missing or damaged insulation, air leakage, cold bridging, moisture patterns, damp risk, underfloor heating faults and electrical hotspots. The camera reads surface temperatures, then our surveyors interpret the pattern against the building fabric. In a Havant home, that might show up around a loft hatch, a window frame or a roof junction at Bartons Road, PO9.
Our thermal imaging surveys in Havant start from £300. The final price depends on the size of the property, access to external walls and how much analysis is needed for the report. A detached home near the local average of £549,218 may take longer to scan than a small terraced house, so we price the work to fit the property.
October to March is the best window because thermal contrast is stronger in colder weather. We need at least a 10C difference between inside and outside for the clearest results. That difference helps the camera separate genuine heat loss from background noise, especially on exposed parts of a Havant property.
Most thermal imaging surveys take 1-2 hours, depending on the size and layout of the property. Larger detached homes or homes with extensions can take longer because there are more junctions, elevations and internal zones to inspect. The analysis and report preparation happen after the visit, so the evidence is checked carefully before it is sent over.
Yes, it can flag patterns that are consistent with damp, moisture ingress or condensation. A cold patch, streaking or an uneven drying line can be a clue, but the camera does not measure moisture content by itself. We use the thermal evidence to point towards the likely cause, then explain where a moisture check or repair investigation makes sense.
The main preparation is to keep the heating on for at least 2 hours before the survey and close windows and doors where possible. Access to the loft, key rooms and any attached areas also helps us complete the scan efficiently. If the property is in PO9 or near Harbour Views on Bartons Road, we will confirm any extra access needs when the booking is made.
Yes, it is non-invasive and non-destructive. We do not open walls, lift floorboards or damage finishes, so the survey is suitable for occupied homes and pre-purchase checks. You get clear evidence without creating new work for the property.
Yes, and new-builds often benefit because they can hide small defects behind clean finishes. At Harbour Views by Redrow on Bartons Road, PO9, a scan can confirm whether the thermal line is continuous or whether a junction, threshold or service point is leaking heat. That makes thermal imaging useful even when the home looks freshly completed.
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Thermal imaging surveys in Havant start from £300, with the final quote shaped by property size, access and the level of reporting needed. Our service includes external and internal infrared scans, image analysis, annotation and a clear written report that explains the likely cause of each issue. The point is not just to show a cold patch on a screen, but to tell you what it means for the building and what to do next.
A typical appointment takes 1-2 hours on site, then the images are reviewed and turned into a report after the visit. For best accuracy, we book surveys in the colder months, from October to March, and we aim for at least a 10C difference between inside and outside. Heating should be on for at least 2 hours before the visit so the thermal contrast is strong enough to show the weak points properly. That is especially useful in Havant, where homes near Bartons Road, PO9 and the wider South Downs edge can show different exposure patterns from one side of a property to the other.
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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.