The lifespan of an air conditioning system ranges from 7 years on a split system to 15 years on large commercial units. So you need to consider how well maintenance the system has been, how efficiently it’s been performing recently and what the risk and cost of ongoing repairs will be.

Most manufacturers cease production of genuine parts for models more than 7 years old. So future repairs must be made using generic parts, reducing energy efficiency, and costing you more in the long run.

The difference between a clean filter and a blocked one can mean a 5% – 15% reduction in your air conditioner’s energy consumption. And that makes it one of the most important parts of your regular maintenance program.

For residential units we recommend cleaning filters at least every 3 months. For commercial units that operate daily, air filters should be cleaned every 30 days.

A ducted air conditioning system allows you to heat or cool the entire home. Or just the rooms you choose.

A system of ducts run from each room to an internal unit which is called a fancoil and installed in the roof.

A ducted system is discreet, quiet, great at maintaining an even temperature throughout the house. But also let’s you heat or cool rooms using individual controls, or ‘zoning’.

It could mean a couple of things.

If filters aren’t cleaned regularly, ice begins to form on the air conditioner’s evaporator. When that ice eventually melts, the water will drip, creating the leak.

But the most common cause for a leak is a clogged condensate drain line. The drain line fills with condensation from the overflow pan and either carries it outside or directly into a drainpipe.

When the drain line is clogged from dust, sludge, mould or dirt, that water backs up, resulting in a leak.

Regardless of what kind of air conditioning system it is, the equipment should be inspected, cleaned and serviced at least once a year.

Two system checks a year is recommended. A Fall check for the heating system and an air conditioning check in the Spring.

There are two components with split air conditioning systems, an indoor and an outdoor unit.

The outdoor unit, consists of a compressor, condenser coil and expansion coil. It’s installed to the wall outside and connects to a the indoor unit which houses the cooling coil, air filter and blower.

The split system air conditioner uses refrigerants to heat or cool a room or space and are great alternative to clunky window-mounted units.

Nothing will save you more in the long run than scheduling regular maintenance for your air conditioning system.

But there are lots of little things you can do around the house to help save on energy expenses.


  • Don’t put lamps or appliances near your thermostat. It will register their heat and run your air conditioner for longer than needed.
  • Vacuum regularly to prevent dust buildups.
  • Don’t use the oven on hot days.
  • Make sure your furniture is arranged in such a way that doesn’t block your unit’s air output.
  • Most light bulbs put out more heat than they do light. Keeping unnecessary lighting turned off will help to keep temperatures in any room down.
  • Only run your air conditioning system when in the room or space it cools. Commercial systems should be turned off at the end of the working day and on weekends.
  • Don’t set the thermostat at a lower temperature than normal. It’s not going to cool the room any faster and will result in overcooling.
  • Keep all doors and windows closed. Allowing non-conditioned air from the outside in will keep your unit running longer.

Air conditioning can help create a clean, healthy environment for individuals that suffer from allergies or have problems with dust.

It helps create an environment with where the air quality is high. Which is especially important in situations involving young children who are still developing, the elderly or those with limited mobility, people dealing with respiratory conditions or a sinus condition.

Long term exposure to air conditioning even reduces stress over time. It puts an end the vicious cycle of changing conditions and fluctuating temperatures with a consistency in climate that allows for full recovery.

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