The clever trick to cool your home in a heatwave that costs absolutely nothing

As UK temperatures soar, a property expert has revealed a simple hack to cool things down. As Britain braces for a mini-heatwave with temperatures expected to climb to 28°C, homeowners across the country are searching for cost-effective ways to beat the heat.

And now, a surprising trick has emerged that could help cool your home, without spending a single penny. Terry Fisher, property expert at We Buy Any Home, has shared a clever, no-cost hack to make your home more bearable during hot spells: hang a damp sheet over an open window.

“Doing this can help cool down incoming air as it passes through the wet fabric,” Fisher explained. “It’s a simple and surprisingly effective way to drop the temperature inside your home, especially in rooms that get direct sunlight.”

The technique works by using evaporative cooling, as air flows through the damp cloth, the moisture evaporates, drawing heat energy from the air and making it feel cooler when it enters the room.

Unlike homes in warmer climates, most British houses are designed to retain heat, not lose it. Heavy insulation, double glazing, and solid walls, all brilliant in winter, can turn homes into heat traps in summer.

“Older properties in particular struggle in heatwaves,” Fisher said. “They often lack modern ventilation or passive cooling features, which means once heat builds up inside, it’s hard to get rid of.”

Alongside the damp sheet trick, Fisher shared other cost-free strategies for surviving the heat.

Keep blinds or curtains closed during the day, especially in south-facing rooms. Open windows at night to allow cooler air in, and close them early in the morning. You can also create a cross breeze by opening windows on opposite sides of the house.

With UK summers becoming increasingly warmer due to climate change, Fisher also noted that homes that stay cooler in summer could be more attractive to future buyers.

“Comfort is a huge selling point,” he said. “Simple upgrades like better airflow, shading, and improved ventilation won’t just help you now, they could also boost your home’s appeal and value in the long run.”

So, before rushing to buy expensive cooling gadgets, it might be worth grabbing a spare sheet and trying this clever DIY hack. It’s free, it’s eco-friendly, and it might just save your summer.