About Us

Great Northern Air Conditioning & Mechanical Services is a local equal opportunity employer, currently employing 18 staff, and has been operating within the HVAC, Refrigeration, and Mechanical Services industry for over 25 years. We are highly organised in the fields of HVAC mechanical engineering, up-to-date preventative maintenance programs, and the supply and installation of industrial, commercial, and domestic systems.

Our success has been built on our unwavering commitment to delivering quality service time and time again. With over 150 years of combined industry experience, our team continuously strives to set the standard for air conditioning and refrigeration providers.

Our expert team of refrigeration technicians, electricians, mechanical plumbers, and skilled trades assistants provide the latest knowledge and capabilities in the service, maintenance, breakdowns, and installations of:

Chilled Water and Central Energy Systems
Commercial and Industrial Ammonia, CO₂ Plants ,and Industrial Machines
Packaged Plant of all Makes, Models and Sizes
Cooling Towers
Dehumidification Systems
Automatic Control Systems
Refrigeration Systems
Cool and Freezer Rooms
Air Distribution Systems
VRV and VRF Systems
Extraction Systems
Split Systems

We maintain a strong management team that enables fast responses to client queries and job statuses. Technical updates are delivered directly to our field staff via an internal electronic job management system, ensuring efficiency and real-time communication.

We proudly hold CAL Accreditation, are registered with the Refrigeration Trading Authority, are Certified AERIS Environmental Platinum Partners, and serve as active committee members of the Australian Institute of Refrigeration, Air-conditioning and Heating.

Our Darwin-based office provides access to exceptional personnel and regional resources, allowing us to meet the unique demands of each project. In addition to our internal team, we partner with a trusted network of subcontractors, enabling us to respond quickly to emergency or contract-specific needs, without ever compromising on quality.

Our people – Our regard for safety – Our training – Our client relationships – Our diverse industry knowledge. All employees of Great Northern Air Conditioning & Mechanical Services are specifically trained and professional within their fields.