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10 eco-conscious ways to keep your home cool in summer.

July 22, 2025

Sustainability and building compliance expert. Specialising in low energy design, SAP, SBEM, BREEAM, and air testing for the construction industry,

Andrew Sadler



As the UK summers grow increasingly warmer, finding sustainable methods to keep our homes cool is becoming more and more essential; yes, for comfort, but (fundamentally!) for the planet too. And let’s face it – cranking up the air conditioning isn’t always the most eco-friendly or cost-effective solution. 

What are eco-conscious ways to keep your home cool? Use smart blinds, reflective window films, and natural ventilation to reduce heat. Add shade with plants, upgrade insulation, and opt for energy-efficient appliances. Passive design features and cool roofs also help lower temps; sustainably and affordably.

Fortunately, there really are numerous strategies to maintain a comfortable indoor temperature while reducing your carbon footprint. We’ve pulled together our 10 top eco-conscious ways to keep your home cool this summer in a handy tip sheet – enjoy! 

1. Embrace smart window solutions

Windows are a primary source of heat gain during the summer months. Implementing smart window treatments can significantly reduce indoor temperatures. Two simple (and cost-friendly) ways that you can do this are:

2. Optimise natural ventilation

It sounds simple, but harnessing natural airflow can be an effective (and often forgotten) way to cool your home without relying on energy-intensive appliances. Some of the best ways to utilise natural ventilation are:

3. Incorporate greenery for natural cooling

Who doesn’t love an excuse to buy more plants? The great thing about them is that not only do plants look and feel great, but they can serve as natural air conditioners, providing shade and releasing moisture into the air through transpiration.

4. Upgrade insulation

You might be surprised to read that proper insulation isn’t just for winter; it also plays a crucial role in keeping your home cool during the summer by preventing heat ingress. The key is to look at your loft and wall insulation. Ensure your attic and walls are well-insulated to reduce heat transfer. Our top tip is to make use of materials like reflective insulation that can deflect radiant heat, keeping interiors cooler.

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5. Opt for energy-efficient appliances

You’ve probably already realised that traditional cooling appliances can be energy hogs. Switching to energy-efficient alternatives can make a significant difference. These include:

6. Adopt passive cooling architectural elements

Passive cooling is a clever, low-impact way to regulate indoor temperatures without relying on energy-hungry systems. These architectural features use the natural movement of air and the principles of thermal dynamics to keep your space fresh and breathable, even during the hottest months.

7. Implement reflective roofing

Your roof is one of the most exposed parts of your home, and in the summer, it can become a massive heat trap. That’s where reflective roofing comes in. By using materials specifically designed to reflect more sunlight and absorb less heat, you can significantly reduce indoor temperatures and ease the burden on your cooling systems.

Bonus: Some cool roofs also qualify for green home incentives or building certifications, making them a win-win for your wallet and the planet.

8. Minimise internal heat generation

It’s easy to forget that many of the appliances and habits we rely on every day can quietly heat up our homes from the inside out. If you want to stay cool without switching on the air con, reducing internal heat sources is a must.

9. Leverage Smart Home technology

Smart technology isn’t just a luxury; it can be a game-changer for energy efficiency and comfort. By automating how and when your home responds to temperature changes, you can stay cool without wasting energy.

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10. Regular Maintenance Checks

Even the best systems will struggle if they’re not properly maintained. A few simple checks throughout the summer can keep everything running smoothly and efficiently.

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What do the experts think?

Andrew Sadler, Director of Buildpass, shares his insights on why eco-conscious cooling methods are more important than ever:

“As we face increasingly warmer summers and growing pressure on the energy grid, it’s crucial to think smarter – not harder – about how we cool our homes. The beauty of sustainable solutions is that they often combine innovation with simplicity. Whether it’s upgrading your insulation, incorporating passive cooling techniques, or being savvy with when and how you ventilate, these changes don’t just improve comfort, they also support long-term energy savings and reduce environmental impact. At Buildpass, we’re passionate about helping homeowners create spaces that work in harmony with the climate rather than against it.”

Can Buildpass help me cool my home this summer?

Staying cool during the summer doesn’t have to come at the expense of the environment or your energy bills. By implementing these eco-conscious strategies, you can create a comfortable living space that’s both sustainable and cost-effective.

If you’re interested in personalised advice or exploring energy-efficient home upgrades, feel free to contact us. Let’s make your home a haven of comfort and sustainability this summer!

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