Split Systems 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
If you're looking for a simple, effective way to cool or heat a single room, split system air conditioning is one of the most popular choices for Darwin homes and small businesses. Great Northern Air Conditioning & Mechanical Services supplies and installs high-performance split systems that are perfect for bedrooms, living rooms, offices, and granny flats.
These systems are efficient, quiet, and easy to control, with modern models offering smart features like Wi-Fi connectivity and energy usage tracking. We understand the Territory’s climate and how to match the right system to your space, so you get maximum comfort with minimal energy waste.
We work with trusted brands and provide full-service installation by licensed professionals. Call our Darwin team today on
(08) 8947 4188 to get a quote or book an on-site assessment with one of our local experts.
Ideal for cooling or heating individual rooms with precision and efficiency
Lower installation and running costs compared to whole-house systems
Supply, Installation & Maintenance Services
We offer end-to-end split system air conditioning services—from helping you choose the right unit, through to professional installation and long-term maintenance. Whether you're upgrading an outdated model or installing a brand-new system, our qualified technicians handle everything from electrical wiring to refrigerant charging and wall bracket mounting.
We’ll assess your room size, insulation, window orientation, and usage needs to recommend the most energy-efficient and cost-effective unit. Once installed, we’ll ensure your system is running smoothly and provide clear instructions on how to use it.
We also offer routine servicing to keep your split system working at its best—especially important in Darwin’s humid climate where blocked filters and coil build-up can quickly reduce performance.
Our team can also diagnose and repair faults, replace damaged components, and clean your indoor and outdoor units to improve airflow and air quality. Whether it's for your home, office, or investment property, we make the process easy and stress-free. Call (08) 8947 4188 to schedule an install or speak to a local specialist today.
FAQ
What is a split system air conditioner and how does it work?
A split system air conditioner is made up of two main components: an indoor unit that blows cool or warm air into the room, and an outdoor unit that expels heat or cold air to the outside. These units are connected by electrical wiring and refrigerant piping. The indoor unit contains an evaporator coil and fan, while the outdoor unit houses the compressor and condenser. During cooling, the refrigerant absorbs heat from inside the room and releases it outside; during heating (in reverse cycle models), the process is reversed. Split systems are ideal for cooling or heating individual rooms and are known for being energy-efficient, quiet, and easy to operate.
How much does it cost to install a split system air conditioner?
The cost of installing a split system air conditioner typically ranges from $1,500 to $3,500, depending on the unit’s size, brand, and complexity of the installation. Smaller units (2.5kW) for bedrooms or small offices fall on the lower end, while larger units (7kW+) for open-plan living spaces may be more expensive. Additional costs may apply for electrical upgrades, long pipe runs, wall mounting brackets, or installations in multi-storey homes. While split systems have a lower upfront cost than ducted systems, it's important to factor in energy efficiency and long-term running costs when choosing a unit.
Are split systems energy efficient?
Yes, split systems are generally considered very energy efficient, especially reverse cycle inverter models. Inverter technology allows the system to adjust its output based on the room temperature, reducing energy consumption and maintaining consistent comfort levels without overworking the unit. Star ratings on the unit can give an indication of energy efficiency—more stars typically mean lower running costs. Choosing the right size system for the space is crucial; an oversized or undersized unit will use more power and wear out faster. Proper installation and regular maintenance also play a big role in overall energy performance.

