Hot weather can make some homes uncomfortably warm, particularly upper-floor flats, rooms with large areas of glazing and properties that receive strong afternoon sun. The useful question for Liverpool households is not whether everyone needs air conditioning, but which measures can reduce overheating safely and affordably.
Start With Solar Gain
UK guidance on overheating highlights shading as one of the most effective passive measures. Curtains and blinds can help, but external shading can prevent some solar heat from reaching the glass in the first place.
Where alterations are practical and permitted, options can include external shutters, awnings, overhangs or suitable planting. Renters and leaseholders should check permissions before making permanent changes.
Use Ventilation at the Right Time
Opening windows is not always helpful during the hottest part of the day if the air outside is warmer than the air indoors. UK heat guidance recommends keeping heat out during the hottest periods and using cooler evening or early-morning air where it is safe to do so.
Think Carefully About Retrofit
Improving insulation and airtightness can reduce winter energy use, but retrofit work should also consider ventilation and summer overheating. A poorly planned intervention can solve one problem while creating another.
- Assess shading before adding mechanical cooling.
- Keep blinds or curtains closed on sun-facing windows during peak heat.
- Ventilate when outdoor temperatures fall.
- Use fans safely where appropriate.
- Seek professional advice for major retrofit work, especially in older or listed buildings.
Some People Are More Vulnerable to Heat
Overheating is not only a comfort issue. Older people, young children and people with some long-term health conditions can face greater risk during very hot weather. UK Health Security Agency guidance recommends planning ahead and taking steps to keep both people and homes cool.
For Liverpool’s older housing stock, the strongest approach is usually a combination of sensible shading, ventilation, maintenance and well-designed retrofit rather than relying on a single product or trend.
