Critical Air started out as McNeall Air Conditioning in 1961.

• Company focus was on Design and Construct and later a Service /Maintenance Division was added to the company thus providing a complete package for the customer.
• A company restructure occured in 2006 when the decision was made to focus on the provision of service and maintenance for customers who are "downtime" sensitive in terms of air conditioning operation. At this time the company changed its name from McNeall Air-Conditioning to Critical Air Pty Ltd.
• Currently  maintenance and service is provided  for approximately 200 customers with equipment ranging from light commercial to heavy industrial.
• 14 fullly licenced field staff providing 24/7 service are currently employed by the company.
• Critical Air is ISO 9001 Certified and are in the process of obtaining AS4801 and AS14000 Certification.
• Critical Air prides itself with the relationships it has with its customers with many of them partnering for periods in excess of 15 years.
• A full time Trainer is employed by the company to ensure ongoing upskilling of its employees and keeping the focus on becoming the most capable,caring and progressive maintenance service provider for customers with "downtime" sensitive air conditioning systems.