How To Keep Your Home Cool During Summer

Written by: Energy Efficient You

Published: 4th June 2024

How To Keep A House Cool In Summer

As we approach the warmer months, the question on many people’s minds is; how to keep my house cool in summer. You can utilise natural techniques of cooling your home, as well as technologies and home improvement methods that will help lower the internal temperature.

Whilst there are many techniques that will lower the temperature of your home, some are more effective than others. 

Check out our top tips below!

1. Insulate Your Home

Many think of insulation as a way to keep your home warm in the winter. However, insulation is a very effective way of keeping your house cool when it’s hot. Insulation helps to protect and seal the inside of your home from the external high temperatures. You can find out more about how insulation keeps a house cool in summer in our handy guide!

If you’d like to see if you’re eligible for a free insulation grant, then click on the button below to check your eligibility!

how to keep house cool in summer
how to cool house in summer

2. Upgrade Your Windows

Having energy-efficient windows can significantly reduce heat transfer, helping to maintain a cooler indoor environment. Double or triple-glazed windows are particularly effective in keeping the heat out and the cool air in, thereby enhancing comfort and reducing reliance on air conditioning. This also leads to lower energy bills and a smaller carbon footprint.

3. Get Air Conditioning

Now that your house is protected by insulation and efficient windows, using air conditioning can get the inside of your house even cooler! We advise you to do your research on the best air conditioning unit for your home, as there’s lots to choose from.

4. Stop The Sun From Coming Through Your Windows

The final, highly effective trick is to stop sun coming through your windows! THaving the sun glaring into your home is sure to raise the internal temperature. But, there are a few very easy things you can do to stop the sun from shining in.

How To Stop Sun Coming Through Windows:

The first thing you want to know is how to stop sun coming through windows. The suns rays will heat up your home quickly. So, to prevent it from making it inside your home you can:

  1. Close your curtains and blinds. During the day, keep your curtains and blinds shut to block out the sun. Better yet, get blackout blinds and curtains to better block the sun’s heat.
  2. Use reflective film. You can also utilise reflective films to reduce the amount of heat that makes it into your home.
  3. Plant trees and bushes. Planting trees and tall bushes outside your home can block the sun from entering your home in the summer months. They help provide shade and keep your house cool.
how to stop sun coming through windows
best ways to keep your bedroom cool at night

Some More Helpful Tips

Here are a few additional things you can do to really keep the warm air out and the cool air in:

  1. Use light-coloured roofs and walls: Light-coloured surfaces reflect the sun better and absorb less heat compared to darker surfaces, keeping your home cooler.
  2. Seal gaps and cracks: Seal up gaps and cracks around doors, windows, and vents to prevent warm air from creeping in through these small openings.
  3. Nighttime ventilation: Open windows on opposite sides of the house at night to allow good airflow, which helps cool your home more effectively.

How To Keep A Room Cool In Summer

If there is a particular room that you want to keep extra chilled, such as your bedroom to avoid hot and humid restless nights, there are some additional things you can do to a room to keep it cool in the heat, such as:

Portable AC Units – Having a smaller air conditioning unit or fan dedicated to that room can help keep temperatures down.

Open Your Window At Night – Opening your window at night can allow cooler night air to come into the room and cool you down, also letting out any warm air that has built up during the day.

Roof Installation – Having a properly insulated roof and attic space can help prevent warm air from getting into the house and keep internal rooms cooler

Use a dehumidifier – Using a dehumidifier will lower the humidity in the room. This will help you keep cool as high humidity can cause rooms to feel hotter.

how to keep your room cool in summer


So they’re our top tips and tricks to keeping your house cool in the summer. You may have to experiment with the best techniques for your particular home, but utilising these tricks should help every home stay a little cooler this summer. We hope you have found these helpful and that you keep cool on those hot summer eves!


If you’re interested in learning more about how you can insulate your house to keep cooler in the summer, check out our eligibility form to see whether you can get free wall insulation!

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