Cooling Solutions for When You Live in a Flat

Living in a flat has plenty of advantages, but keeping it comfortable during hot weather can be challenging. Upper-floor flats can be particularly susceptible to overheating, while apartments with windows on only one side may have limited opportunities for cross-ventilation. UK government guidance identifies both as factors that can increase the likelihood of a home overheating.

Luckily, there are several ways to make a flat more comfortable, ranging from simple changes in daily habits to dedicated cooling systems.

Stop Heat Entering Through the Windows

Windows can allow considerable heat into a flat when they receive direct sunlight. Closing curtains or blinds during the hottest and sunniest parts of the day is one of the simplest ways to limit this heat gain. Government guidance recommends shading or covering windows during hot weather. External shutters and awnings can also be effective where they are available and permitted. If you rent your flat or live in a managed building, check what alterations are allowed before fitting anything externally.

Ventilate at the Right Time

Opening the windows all day might seem like an obvious cooling strategy, but it can make matters worse when the outdoor temperature is higher than the temperature inside. Keep windows closed during particularly hot periods where appropriate, then open them when the outside air becomes cooler, such as during the evening or at night. If you have windows on opposite sides of your home, opening both can encourage air to flow through the flat.

Consider Air Conditioning Designed for Flats

Installing conventional air conditioning in a flat is not always straightforward. Standard split systems typically require an external condenser, which may be unsuitable where exterior alterations are restricted.

Water air conditioning provides another possibility for properties where an outdoor condenser cannot be installed. Water-cooled systems operate similarly to conventional split air conditioning, but use water rather than outside air to cool the heated refrigerant. This allows the condenser to remain inside, connected to a water supply and waste drain. These systems can be particularly relevant to apartments where external equipment is impractical, although installation requirements and any necessary permissions should always be checked beforehand.

Make Better Use of Fans

For a simpler solution, electric fans can make a room feel more comfortable by moving air around. They can be particularly useful in bedrooms and home offices where you spend extended periods.

Fans can also support evening ventilation by helping move warmer air out once the temperature outside has dropped. Government guidance recommends using fans when the air temperature is below 35°C.

Reduce Heat Generated Indoors

Sometimes the flat itself is adding to the problem. Ovens, hobs, computers, televisions, lighting and other electrical equipment can generate heat. Try cooking during cooler periods or choosing meals that require less oven use on exceptionally hot days. Switch off unnecessary lights and electronics rather than leaving them running. This approach is also recommended in official UK hot-weather guidance.

Focus on the Rooms You Use Most

You do not necessarily need to cool every part of your flat equally. Concentrate your efforts on bedrooms, living spaces and home-working areas. Close doors to particularly warm unused rooms where appropriate and spend time in the coolest parts of the property. During prolonged hot weather, small adjustments to how you use your flat can make a noticeable difference.

Ultimately, cooling a flat requires a combination of preventing unnecessary heat gain and removing heat effectively. Sensible shading, well-timed ventilation, fans and an appropriate air-conditioning solution can all contribute to making apartment living considerably more comfortable when temperatures rise.