Yes — hidden air leakage can have a huge impact on how much you spend heating your home.

If warm air is constantly escaping through gaps in the building, your heating system has to work much harder and stay on for longer just to maintain temperature.

That wasted heat quickly pushes energy bills higher.

Air leakage often happens around loft spaces, floor junctions, window frames, service penetrations, and other hidden weak points throughout the property. Most homeowners don’t realise how much warm air they’re losing because those areas usually aren’t visible.

If your home feels draughty, cools down quickly, or never quite feels comfortable even with the heating on, hidden air leakage could easily be part of the problem.

At AVT UK, our air tightness testing services help identify where uncontrolled airflow is happening so you can understand how the property is performing overall.

Combined with thermal heat loss surveys and ventilation assessments, this gives you a much clearer understanding of why your heating bills may be higher than expected.