Without a doubt, if you have ever lived in Perth during the summer months, you already know how and uncomfortable the summer season can be. Being able to keep the heat and moisture out of your home is a matter of prior planning.

Here are some great tips on how to keep your home cool without using lots of electricity.


  1. Having tall plants or trees that shade the outside of your home helps to keep the heat away from entering through your windows.
  2. Shading your windows from the outside helps to prevent nearly 75% of the solar heat from reaching the windows. This can easily be done with awnings, overhanging eaves, up and down rolling shutters and bamboo shades.
  3. Install UV Ray and Sunlight reflective window panes. This not only keeps the humidity and heat out of your home, it will also reduce your dependence on your air conditioner.
  4. Whether you have curtains or window blinds, keep them closed during the daylight hours, especially during the peak heat generating hours of 3 to 6 PM. Light coloured curtains are more effective than darker coloured ones. White blinds are effective in reflecting sunlight, and in keeping solar heat away from the interior rooms cool.
  5. Install double pane windows that will keep the sun’s heat from entering the house and the room’s coolness from escaping through the windows. If you are installing new windows, do not use aluminium frames because these frames are not efficient in keeping cool air in the home.

Use of Portable and Ceiling Fans

  1. You can augment the use of your air conditioner by using a portable fan. If you are at home during the daytime, you can take a portable fan into the room that you are using while keeping the air conditioning turned to a higher temperature for the rest of the home. You can also close the air vents in the rooms not in use while using the portable fan. This will reduce the dependency on the air conditioning and reduce your electric bills.
  2. A slow to moderate rotating ceiling fan with paddle blades, moving in a counterclockwise motion, can provide this extra air current within a room.

Air Conditioner System

  1. Before you start using the air conditioner, be sure that you clean the ducts and either clean a metal filter or replace the fiber filter. Repeat this routine at least once a month using the air conditioning season. It is always a good idea to have your air conditioner unit served before the hot season starts.
  2. Don’t overuse the air conditioning unit. Setting the thermostat at 25.5 for daytime and 23.9 for the evening hours will help to not over work the system.
  3. If the time has come that you need to replace the outside compressor for an older central air conditioner, make sure that the newer unit is appropriately matched to the size of the indoor unit. Unless you are a skilled home repair individual, it is best to have a professional technician do the installation. This ensures that the outside compressor will be matched with the indoor unit, and you will have a valid warranty for the service work and the longevity of the new compressor.
  4. If you are in the market to purchase an entirely new central air conditioning system, consult with an air conditioning professional to ensure that the new system is the appropriate size to adequately cool your home without putting an unnecessary load on the system. It is advisable to have a professional service-person install the new system. This protects you with a service warranty in the event that there is a malfunction with the new system.
  5. If you are not using all of the bedrooms at night, you can cut back on the electricity used by closing the air ducts in the other rooms. If you live in a multi-leveled home, you can also close off the air vents on the lower levels during the night time, when no one is using those levels, since those levels will be cooler during the evening hours.
  6. If you do not have a programmable air conditioning thermostat and you are going to be away from the house for several hours or several days, turn the thermostat to a higher temperature when no one will be home. You might want to consider turning the air conditioner off is no one will be home for extended periods of time. When you return home, turn the system on at room temperature, 23 degrees, for about one hour to allow the home to cool down, then return the temperature to the appropriate setting for the time of day or evening that you are returning.

Sealing and Insulation

  1. Check the edges of doors and windows to ensure that there are no gaps where cool air can escape, and where hot air can get in. If there are any gaps, use weather stripping to seal up the open spaces. This action has a double advantage because it will also keep the warm air in during the winter months.
  2. Check the insulation level in the attic to insure that it is sufficient to keep the heat on your roof from getting into the house. The proper amount of insulation also gives you a second bonus because it will keep the home’s heat in during the colder months.

Electronics and Light Bulbs

  1. Replace your standard, incandescent, light bulbs, which generate a lot of heat, with LED or low-heat CFL bulbs. Also, don’t place light bulbs near an air conditioner thermostat because the added heat may cause the air system to turn on needlessly.

Home Improvements

  1. If you are in the market to upgrade the exterior of your home, consider painting the outside with a heat reflecting light colour, or replacing the outside walls with light coloured bricks.
  2. If you are in need of a new roof, you can keep your home much cooler with a light coloured roof, a shingled roof, or clay, slate, or concrete tile roof.

When planning your home improvements, whether for needed renovations or for seasonal enhancements, Kre8 Constructions WA is the company to contact for a consultation. We are a locally owned and operated company that proudly serves the greater Perth region with top quality, professional home improvements.

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