Air Conditioner Replacement
in Melbourne
- 30+ Years Replacing Melbourne Systems
- 8,000+ Air Conditioning Installations Completed
- ARCtick Certified. Old System Safely Removed
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5 Signs It Is Time to Replace Your Air Conditioner
Not every fault means replacement. But there are five situations where attempting a repair is the wrong call financially and practically. Here is how to tell the difference.
System Age
If your system is 10-15+ years old, replacement is often more reliable than repeat air conditioning repair and air conditioning maintenance.
The Repair Cost Rule
If the repair quote is 50%+ of a like-for-like air conditioner installation, replacement usually makes better sense.
We provide upfront pricing so you can compare options clearly.
R22 Refrigerant
If your unit uses R22, refrigerant handling is costly and limited, so air conditioning replacement is often the practical option.
We complete ARCtick refrigerant recovery before decommission and unit removal.
Rising Energy Bills
Higher bills can point to compressor wear, evaporator coil issues, refrigerant leaks, or poor system sizing.
A new unit selected with a load calculation can reduce running costs and improve comfort.
Ageing Gas Ducted Heating
If your gas ducted heater is failing, upgrading to ducted reverse cycle can replace heating and cooling with one HVAC system.
We check ducts, zoning, and airflow balancing before installation.
Air Conditioning Systems We Replace in Melbourne
Split System Replacement
Remove the existing indoor unit and outdoor condensing unit, inspect the condensate drain and refrigerant pipework, then install the replacement split system in the same or a more suitable location.
Ducted Air Conditioning Replacement
Replace indoor and outdoor components, review duct compatibility, and recommission zones for balanced airflow.
Ducted Gas to Reverse Cycle
One of the most common system replacement jobs in Melbourne. Remove ageing gas heating equipment and install reverse cycle air conditioning for year-round heating and cooling.
Evaporative to Refrigerative Upgrade
Upgrade from rooftop evaporative cooling to a refrigerative system with full heating and cooling capability.
Replacing Your Ducted Gas Heating with Reverse Cycle Air Conditioning
In Melbourne homes with ageing gas ducted heating, upgrading to ducted reverse cycle gives you one HVAC system for heating and cooling, faster temperature control, and zoning for room-by-room comfort.
Modern reverse cycle systems are often more energy-efficient than older gas ducted heaters because they move heat rather than generate it, helping reduce running costs while improving year-round comfort.
We manage the changeover end-to-end, including:
- System sizing and load calculation
- Duct checks, airflow balancing and zoning
- Electrical contracting
- Safe decommission and unit removal
- ARCtick refrigerant handling where required
- Final commissioning
How the Replacement Process Works
Before you book an air conditioning replacement, you want to know the essentials: is the old unit removed, how is refrigerant handled, and what checks are done on ducts and electrics. Here is the straightforward process we follow across Melbourne for residential HVAC and commercial HVAC.
Inspect and Plan
We assess your current HVAC setup and overall HVAC services requirements, including system sizing, airflow balancing, zoning, and electrical capacity.
For ducted reverse cycle and other ducted jobs, we check duct condition, zoning, and airflow balancing, and complete a pressure test where required.
You then receive a written upfront pricing quote before anything is ordered or booked.
Safe Removal and Decommission
We decommission the old system first and complete ARCtick-compliant refrigerant recovery and refrigerant handling.
Then we remove the indoor and outdoor units (full unit removal included) and dispose of or recycle components responsibly, leaving the site ready for installation.
After removal and installation, we complete a full site clean-up and remove all old equipment, packaging, and waste materials from the property.
New System Installation and Commissioning
We complete the air conditioner installation, including electrical contracting to AS/NZS 3000, circuit check, and isolator switch verification.
Refrigerant lines are pressure test and vacuum test checked, then the system is commissioned and tested across all modes, thermostat controls, airflow zones, and operating settings before handover with manufacturer warranty paperwork and operating guidance.
We Install Australia's Leading Air Conditioning Brands
We remove your existing system regardless of brand and install whichever brand and model suits your home, your budget, and your usage pattern.
See all brands we service across Melbourne.
What Our Customers Say
"Great service from the first phone call through to the replacement of our split system. Debra helped us find the right solution for our budget and timeframe, while the installation team arrived on time, worked professionally, and completed a full clean-up before leaving. Excellent experience overall."
"Organising air conditioning replacement during summer is usually difficult, but Melbourne Heating and Cooling made the process straightforward. The team completed a large split system replacement for our office, including ducting replacement and full system setup, with fast turnaround and excellent communication throughout."
"Professional, punctual, and hardworking from start to finish. The team replaced and installed split systems across both upstairs and downstairs areas with excellent workmanship and no issues afterward. Highly recommended."
"Friendly and professional service from both the office staff and installation team. They sourced a replacement unit quickly and completed the installation within two days. The whole replacement process was smooth and well organised."
"Melbourne Heating and Cooling handled our ducted air conditioning replacement professionally despite the challenges of our off-grid solar setup. The team was knowledgeable, tidy, and easy to work with, and the new system performs brilliantly even during extreme Melbourne heat."
"They were extremely helpful when replacing our old air conditioner, which had lasted more than 30 years. The replacement process was straightforward, and the new system has performed beautifully since installation."
Frequently Asked Questions
How long does air conditioner replacement take?
Most split system replacements are completed within a half-day, typically three to five hours.
Ducted system replacement usually takes one to two days.
Gas-to-reverse-cycle replacement varies depending on the duct assessment outcome and any ducting work required.
Our technician will confirm the time estimate after the planning visit.
Can I keep the indoor unit and just replace the outdoor compressor?
This is generally not recommended and is often not technically possible. Indoor and outdoor units are matched systems designed to work together.
Mismatching brands or generations creates efficiency losses and long-term reliability problems. Replacing the full system is almost always the correct approach, and it is the only approach covered under our 7-year warranty.
Do refrigerant pipes need to be replaced when installing a new air conditioner?
In many replacement jobs, the existing refrigerant lineset can be reused if it passes pressure testing and matches the new system specifications.
If the pipework is undersized, damaged, contaminated, or incompatible with the replacement air conditioning system, new refrigerant pipework may be recommended to protect long-term performance and warranty compliance.
Do you handle refrigerant recovery and disposal?
Yes. Melbourne Heating and Cooling completes ARCtick-compliant refrigerant recovery before removal, which is required for legal and safe decommissioning.
What happens to the refrigerant in my old system?
Refrigerant cannot be vented to atmosphere. This is a legal requirement in Australia.
Our ARCtick-certified technicians recover all refrigerant from your old system before removal, in full compliance with the Australian regulations that govern refrigerant handling. This is not an optional service.
Can property managers request a service callout?
Yes. Property managers can request a service callout for residential or commercial sites and receive an upfront written quote before work starts.
More Air Conditioning Services
Air Conditioning Installation
New system for a room or zone that has never had cooling. We handle split systems, ducted AC, and multi-splits across Melbourne with upfront pricing before work starts.
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Air Conditioning Repairs
Not sure whether to repair or replace? Our technicians diagnose the root cause first and give you an honest recommendation before any work starts.
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Air Conditioning Maintenance
After replacement, scheduled maintenance keeps your new system performing at its best and protects your investment long-term.
View Service
Why Choose Melbourne Heating and Cooling?
Over 30 years serving Melbourne. Licensed, reliable, and always upfront about pricing.
Upfront Pricing and Honest Quotes
A Trusted and Established Local
We Know What You Need
We Have Melbourne Covered
Licensed Plumbers and Electricians
All Our Work Is Backed by Warranty
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