How Home Energy Audits Work
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A home energy audit systematically assesses where a property is losing energy and where efficiency could realistically be improved, typically starting with a walkthrough inspection of insulation, sealing, appliances and heating or cooling systems by a trained assessor familiar with the most common problem areas found in a typical home of that age.
More thorough audits may use tools like thermal imaging cameras to visually identify heat loss through walls, ceilings and windows that would otherwise be invisible to the naked eye, or blower door tests that measure exactly how much air is leaking through a building's envelope under controlled pressure.
The resulting report usually ranks recommended improvements by cost effectiveness, helping households prioritise which upgrades will deliver the greatest return relative to their cost, rather than tackling improvements randomly or spending on upgrades that will only mildly help by comparison with cheaper, more effective options that were available to tackle first.