Commercial Air Conditioning in Darwin
At Great Northern Air Conditioning & Mechanical Services, we design, install, and maintain quality air conditioning and HVAC systems across Darwin. With 25+ years of experience, our expert team delivers fast, reliable service to keep your home or business cool and compliant. Call today for trusted local support.
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25+ years of trusted HVAC & air conditioning expertise
Fully qualified team across refrigeration, electrical and mechanical
Smart maintenance schedules that reduce energy costs
When it comes to keeping commercial spaces comfortable and compliant in Darwin’s climate, Great Northern Air Conditioning & Mechanical Services delivers smart, reliable solutions tailored to your needs. From office buildings and retail outlets to warehouses and industrial facilities, we design and install commercial air conditioning systems that perform under pressure.
Our team understands the complexities of large-scale air conditioning—whether it’s integrating energy-efficient split or ducted systems, managing airflow across multiple zones, or keeping cool rooms and control systems running at peak efficiency.
We’re backed by over 25 years of industry experience and a Darwin-based team of refrigeration techs, electricians, and mechanical plumbers who know the Territory inside out. Give us a call on
(08) 8947 4188 to arrange an on-site assessment or to discuss a maintenance plan that works for your operation.
Tailored system designs that meet both comfort and compliance standards
Quick, qualified service backed by our local team and electronic job tracking
Full-Service Commercial HVAC Solutions
We provide a complete suite of commercial HVAC services designed to support businesses across Darwin—from small retail stores to major industrial operations. Our expertise covers new system installations, retrofits, programmed maintenance, compliance servicing, and emergency repairs.
We work with all major system types and brands, including chilled water and central energy systems, CO₂ and ammonia plants, cooling towers, packaged units, VRV/VRF setups, and large-scale ducted systems. Our work also extends to air distribution systems, dehumidification units, extraction systems, and automatic control systems.
Every project we take on is backed by our extensive technical knowledge and real-world experience, ensuring each system is designed and maintained for optimal performance, safety, and longevity. We understand that downtime can cost your business—so we focus on delivering dependable, efficient service that keeps you up and running.
Whether you’re managing a single building or a portfolio of sites, we’ll help you stay cool, compliant, and in control. Ready to get started? Call us today on (08) 8947 4188 to book a site visit or request a quote.
FAQ
What is the best type of air conditioning system for a commercial building?
The best air conditioning system for a commercial building depends on several factors including the size of the space, number of zones, usage patterns, and energy efficiency goals. Common options include ducted reverse cycle systems, split systems, VRV/VRF (Variable Refrigerant Volume/Flow) systems, and chilled water systems. VRV/VRF systems are popular for multi-zone control and energy efficiency, while ducted systems are ideal for evenly cooling large open areas. For industrial or specialist environments, packaged units or customised solutions may be required. It’s essential to have a professional assess the building’s layout, insulation, and cooling demands to recommend a system that’s cost-effective, scalable, and compliant with Australian standards.
How often should commercial air conditioning systems be serviced?
Commercial air conditioning systems should typically be serviced every 3 to 6 months, depending on the system type, building usage, and environmental conditions. For example, systems in high-use environments such as shopping centres, offices, or schools may require more frequent maintenance to ensure efficiency and air quality. Regular servicing includes inspecting and cleaning filters, checking refrigerant levels, testing electrical components, and inspecting ductwork or condensers. Routine maintenance helps prevent costly breakdowns, prolongs the life of the system, improves energy efficiency, and ensures compliance with workplace health and safety regulations. For optimal performance, many businesses opt for a preventative maintenance program tailored to their site and equipment.
How much does a commercial air conditioning system cost to install?
The cost to install a commercial air conditioning system can vary widely depending on the size and complexity of the building, the type of system, and any custom requirements. Basic split systems for smaller commercial spaces may start from $3,000–$5,000, while large-scale ducted or VRV/VRF systems for multi-zone buildings can range from $15,000 to over $100,000. Costs include system design, units and parts, labour, commissioning, and sometimes structural work or electrical upgrades. It’s important to also consider long-term operating costs, as energy-efficient systems can save significantly over time. The best way to get an accurate cost is through a professional site inspection and quote based on your specific requirements.

