Thermal Imaging Investigations

The customer was looking for a proper diagnostic assessment of their property (loft and kitchen) to understand where air leakage and heat loss were actually occurring, before committing to any insulation or draught-proofing works.

On-site Home Health Diagnostic Survey combining a blower door test, smoke testing and a thermal imaging survey.

The thermal images and smoke tests showed exactly where air leakage and heat loss were occurring. George explained the building physics behind each issue so the customer understood the causes, the risks they create and how they relate to each other.

A detailed, well-structured written report was delivered, with clear explanations of the causes, risks and recommended remedial options. The recommendations were honest and practical about priorities, costs and what would (and would not) make a real difference.

The customer received a proper diagnostic assessment — not a superficial inspection. They were extremely impressed with the professionalism and depth of knowledge and would have no hesitation in recommending the service.

A built-in cupboard against an external wall was generating persistent damp and mould — the cold internal surface was sitting below dewpoint on cold days, condensing moisture out of the air and causing the tenant ongoing problems. The property is tenanted, so works needed to be coordinated directly with the tenant around their availability.

Two pre-works site visits to understand the scope properly (no blind phone quoting), combined with FLIR thermal imaging to confirm the cold surfaces and identify the worst-affected areas. The work was then specified as a full internal wall insulation (IWI) build-up using Celotex / Kingspan-equivalent rigid PIR boards — a hygrothermally aware solution sized to bring the internal surface temperature well above dewpoint.

The thermal images confirmed pronounced cold spots and cold bands on the cupboard wall, lintel and reveals — surfaces between 15.7 °C and 17.7 °C against room air of ~21 °C, which is a textbook condensation/mould risk. Two site visits before quoting also revealed the job was trickier than a single day allowed for, so the scope was honestly re-priced to two days rather than rushed.

Full IWI installation to the cold cupboard: rigid PIR insulation boards (Celotex / Kingspan equivalent) fixed to the cold wall, with airtight detailing at junctions to control vapour movement. Access to the tenanted property was arranged directly with the tenant, working around their availability. Project completed under a 1-year workmanship warranty.

A dry, warmer cupboard with the internal surface now well above dewpoint — eliminating the damp and mould source at the root. The tenant is happy with the solution, the landlord has a 1-year warranty, and the job is signed off via the verbatim MyBuilder review.

The customer needed a structured, evidence-based assessment of their whole flat — not a tick-box survey — to understand exactly where heat, comfort and indoor-environment problems were originating, and to receive a fully-costed schedule of recommended improvements they could prioritise and budget against.

On-site Home Health Diagnostic Survey of the flat combining: visual inspection room by room, FLIR thermal imaging of all critical surfaces (walls, ceilings, lintels, reveals, floor junctions, service penetrations), surface temperature and humidity readings, defect identification against building-performance criteria, and conversion of the findings into a costed improvement schedule.

Multiple thermal defects identified and measured across the flat: localised thermal bridges at wall/ceiling corners (cold spots down to 19.1 °C against room baseline ~21 °C), pronounced cold bands along door-head lintels (16.8 °C → 29.4 °C across the same image), a cooler perimeter band at the wall/floor junction (evidence of a heat-loss path through the slab edge), and uniformly cool internal wall surfaces giving an accurate baseline for the costed-improvement comparison.

A thorough written diagnostic report was delivered covering each defect, the building-science reason for it, and a fully-costed schedule of proposed improvements ranked by impact and cost. The recommendations covered thermal-bridge mitigation, perimeter detailing, surface-temperature improvement and a wider Building Performance Strategy the client can implement in stages.

The customer received a proper, evidence-based assessment with full costings for every proposed improvement — exactly what they were looking for. They left a 5-star Checkatrade review describing the report as 'very thorough' with full costings for all proposed improvements, and a glowing recommendation.