Our Services


All residential style split system and ducted air conditioners and all leading heat recovery ventilation systems.

How often should your filter be changed/cleaned?

Depending on the manufacturer, recommendations vary from every month to every 3, 6, 9, or 12 months.  No reputable air conditioner manufacturer recommends filter cleaning at longer than 12 month intervals.  Ventilation systems are typically 12- 24 months.

We recommend at least every 12 months and suggest every 6 months. Don’t wait until you are using your system to remember to have it cleaned.

Health Impacts

Bacteria and fungi (moulds) breed in air conditioners that are not cleaned thoroughly, or have the filters changed regularly.

When these microorganisms go air-borne, they can lead to a multitude of breathing problems, including a potentially fatal infectious pneumonia, Legionnaire’s disease, caused by a bacterium.

Whilst these may be extreme reactions, asthma and allergy sufferers and infant children and elderly are particularly at risk from contaminated indoor air.

An air conditioning unit circulates internal air and does not introduce fresh air.  Simply circulating allergens and making them airborne within the home can trigger allergic reactions.

Efficiency Impacts

Clogged, dirty filters block normal airflow and reduce a system’s efficiency significantly. With normal airflow obstructed, air that bypasses the filter may carry dirt directly into the evaporator coil and impair the coil’s heat-absorbing capacity. Replacing a dirty, clogged filter with a clean one can lower your air conditioner’s energy consumption by as much as 15%.

Machine Life

If your filters are not changed or cleaned, this will mean the machine must “work harder”  and will ultimately shorten the life of the machine and lead to greater repair and maintenance costs.


  • We will clean all of your ceiling fans’ blades
  • We will clean the grilles on your bathroom fans
  • We will dust your ceiling & cornice for cobwebs


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What do FILTERGUYS actually do?

For split systems:

  • We remove the filter and vacuum the space in which it is fitted.
  • We vacuum the filter itself.
  • If the filter is particularly clogged we will wash it (in your sink).
  • We will wipe with a microfibre cloth and spray with a disinfectant that will kill 99.9% of bacteria.
  • We will then re vacuum the filter.
  • We will return the filter in your unit.
  • We will wipe down the entire head unit.

For ducted systems:

  • We will remove the filter from your return air intake.
  • We will remove the old filtration media and replace with brand new.
  • We will vacuum your return air grille.
  • We will wipe the inside of the return air grille with disinfectant.