Gary Lawson, managing director at Sustainable Building Services (UK) Ltd, explains how retrofit helps homes remain comfortable year-round using smart design and communication

As the UK’s climate grows warmer and more unpredictable, home comfort is no longer just a winter concern. The rise in summer temperatures is making overheating a more prevalent issue, particularly in older or poorly insulated properties.

While retrofit programmes are often discussed in terms of winter warmth and energy savings, their role in keeping homes cooler during hot weather is just as vital.

Retrofit as a shield against overheating

Most people associate retrofit measures with retaining heat during the colder months. But with average summer temperatures rising and heatwaves becoming more common, the focus is shifting. Homes that are poorly insulated or lack ventilation can quickly become too hot, putting residents at risk and impacting their well-being.

Retrofit can make a major difference. Measures such as external wall insulation and glazing help reduce solar gain and prevent indoor spaces from becoming uncomfortably warm. Improvements to ventilation systems also help by allowing homes to release trapped heat while maintaining healthy airflow.

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