When temperatures rise, many UK homes can quickly become uncomfortable. Most properties weren’t designed with air conditioning in mind, but there are plenty of effective ways to keep your home cooler naturally.
From managing sunlight to improving airflow, small changes can make a noticeable difference. Better still, investing in modern windows and doors can help improve comfort not just during a heatwave, but throughout the year.
Open Windows at the Right Time
One of the biggest mistakes homeowners make is opening windows during the hottest part of the day.
If the air outside is warmer than inside, you’re simply letting more heat into your home.
Instead:
- Open windows late in the evening and early in the morning
- Create cross ventilation by opening windows on opposite sides of the house
- Keep windows closed during peak afternoon temperatures
If you have sash windows, opening both the top and bottom sections can be particularly effective. Warm air escapes through the top while cooler air enters through the bottom.
Keep the Sun Out
Direct sunlight can quickly turn a room into a greenhouse.
To reduce solar heat gain:
- Close curtains and blinds before the sun reaches the window
- Focus on south and west-facing rooms
- Use light-coloured blinds or curtains where possible
Integral blinds within glazing units can also help reduce glare and solar gain while maintaining a clean, modern appearance.
Reduce Heat Generated Inside Your Home
Many everyday appliances produce surprising amounts of heat.
During hot weather:
- Avoid using ovens where possible
- Switch off unused electronics
- Replace older bulbs with LED lighting
- Run kitchen and bathroom extractor fans after cooking or showering
These simple changes can help prevent unnecessary heat build-up indoors.
Use Fans More Effectively
Fans don’t actually cool the air, but they can make you feel cooler by improving airflow.
For best results:
- Position fans near an open window during cooler periods
- Place a bowl of ice or frozen water bottle in front of a fan for a cooling effect
- Use fans to help circulate fresh air through your home
Remember, fans work best when the air they’re moving is cooler than the room itself.
Can New Windows Help Keep Your Home Cooler?
Absolutely.
Older windows can allow significant solar gain and often suffer from poor seals that make temperature control more difficult.
Modern energy-efficient windows help by:
- Reducing heat transfer through the glass
- Improving insulation
- Minimising draughts
- Providing better ventilation options
High-performance glazing can help maintain a more comfortable indoor temperature throughout the year.
Don’t Forget About Your Doors
Large glazed doors can also play a major role in how warm your home becomes during summer.
Modern patio doors, French doors and bifold doors feature advanced glazing and improved thermal performance compared to older systems.
Features such as:
- Energy-efficient double glazing
- Solar control glass options
- Integral blinds
- Improved weather seals
can all help reduce unwanted heat entering your home.
Invest in Long-Term Comfort
While closing blinds and opening windows at the right time can help during a heatwave, upgrading older windows and doors can deliver lasting benefits.
Modern systems help improve:
- Summer comfort
- Winter warmth
- Energy efficiency
- Security
- Overall property value
For homeowners planning improvements, it’s worth considering how your windows and doors perform in every season, not just during the colder months.
FAQs
Should I keep windows open during a heatwave?
Only when the outside temperature is cooler than inside. Typically, this means opening windows overnight and early in the morning.
Do curtains and blinds really make a difference?
Yes. Blocking direct sunlight before it enters the room can significantly reduce indoor temperatures.
Can double glazing help keep a home cool?
Modern double glazing helps reduce heat transfer and can improve comfort during both summer and winter.
Are bifold doors energy efficient?
Modern bifold doors are designed with thermal efficiency in mind and can be fitted with energy-efficient glazing to help regulate indoor temperatures.
What is the best way to cool a room naturally?
Combining shaded windows, controlled ventilation, and reduced indoor heat sources is usually the most effective approach.
Looking to Upgrade Your Windows and Doors in Kent?
At Medway Windows & Doors, we supply and install high-quality windows and doors designed to improve comfort, energy efficiency, and security all year round.
Whether you’re considering replacement windows, patio doors, French doors, composite doors or aluminium bifold doors, our experienced team can help you find the right solution for your home.
Get in touch today for a free, no-obligation quote.
Call us today on 01634 931 888 or email info@medwaywindowsanddoors.co.uk








