Reliable Split System Air Conditioning in Newcastle
Since 1939, Coles Refrigeration & Air Conditioning has been Newcastle’s trusted choice for residential comfort. Our team specialises in split‑system air conditioners with expert installation, maintenance and servicing tailored to homes across Newcastle, Lake Macquarie, Maitland, Cessnock and the Central Coast.
Newcastle's #1 Domestic Air Conditioner Installation & Servicing Team
Why Choose Coles for Split System Installations?
Local expertise you can trust: Over 85 years serving Newcastle households means our qualified technicians know exactly how to install your split‑system quickly, correctly and efficiently. We get it right the first time to avoid common faults caused by poor installation.
Tailored advice: Our team reviews your room size, insulation and layout to recommend a split‑system that delivers optimal performance and efficiency.
Preferred brands: We work with trusted names such as Mitsubishi, Daikin and ActronAir to bring you quiet, energy‑efficient systems suited to your lifestyle.
We supply, install and repair all the major brands!





A split system air conditioner is made up of two main parts: an indoor unit (usually mounted on the wall, floor or ceiling) and an outdoor compressor unit that sits just outside your home. In summer, it pulls the warm air out of your room, cools it down, and sends the chilled air back in. In winter, it works in reverse to keep you warm—even on those frosty Newcastle mornings.
They’re a great option if you’re looking to cool or heat a specific room or area without running ducting through the whole house. Perfect for bedrooms, lounge rooms, home offices or granny flats, split systems give you control over the comfort of the rooms you actually use.
They’re also quiet, energy efficient, and most of the newer models come with air filters that help clear out dust, pollen and other allergens—which is a big plus for families, pet owners or anyone with asthma or hay fever.
There are plenty of modern designs to choose from too, so whether you want something that blends in with your living room or a low-profile unit for a study or bedroom, there’s an option to suit. We’ll help you pick the right size and setup for your space, and make sure it’s installed properly so it runs smoothly from day one.
Installation
Our fully licensed technicians handle everything from site inspection and sizing to installation and commissioning. We ensure your split‑system runs smoothly before we leave, and we clear up after ourselves – maintaining your peace of mind throughout the process.
Maintenance & Servicing
Regular servicing is essential to extend the life of your system, optimise efficiency and prevent breakdowns. Booking scheduled maintenance with Coles includes filter cleaning or replacement, inspection of electrical components, refrigerant level check and cleaning of both indoor and outdoor units.
Repairs & Emergency Support
Should your split‑system fail or suffer a fault, our emergency call‑out service is available 24/7 in Newcastle and the Hunter region. Our mobile units provide same‑day support wherever possible, ensuring minimal downtime for your comfort.
Benefits of Split Systems with Coles Refrigeration
| Benefit | Why it matters |
| Zoned control | Cool or heat only the rooms you use, helping reduce energy costs |
| Quiet and discreet | Ideal for bedrooms, home offices and living spaces |
| Energy efficient | Uses inverter tech to maintain comfort without overworking the system |
| Fast, reliable service by locals | We know Newcastle homes and respond quickly when you need support |
Ready to Enjoy Comfort All Year Round?
Get in touch with Coles Refrigeration & Air Conditioning today. Whether you’re after a new split system, servicing for your existing unit, or emergency repairs, our Newcastle team is here to help.
- Request a free quote – We can arrange a virtual or in-home consultation at a time that suits you.
- We assess your needs and recommend the right split system size and placement for your space.
- Installation is scheduled at a time that works for you. We offer weekday, evening and weekend options.
- Post-install support – We offer ongoing servicing packages to keep your system running at its best.