When your aircon starts blowing warm air or stops working altogether, there’s a good chance you’re dealing with a gas (refrigerant) leak. It’s not just frustrating—it can lead to health risks and high energy bills. But how much does it cost to fix an AC gas leak in Sydney?
Let’s break down everything you need to know, including average air conditioner gas leak repair cost, common signs of leaks, safety tips, and when it’s worth repairing.
Is It Safe to Run AC With a Gas Leak?
Short answer: No. Running your air conditioner with a refrigerant leak isn’t just inefficient—it can be hazardous.
Refrigerant gases like R410A are odourless and colourless, but prolonged exposure can cause headaches, nausea, or even more serious respiratory issues. According to SafeWork NSW, refrigerants must be handled only by licensed HVAC technicians to avoid environmental and health hazards.
🔗 Safe Handling of Refrigerants – SafeWork NSW
How Do I Know If My Air Conditioner Is Leaking Gas?
Look out for these tell-tale signs:
AC is blowing warm or weak air
Hissing or bubbling sounds from the unit
Ice buildup on evaporator coils
Higher than usual electricity bills
AC not cooling as efficiently as before
If you spot any of these, it’s time to call a licensed HVAC technician for gas leak detection and repair.
So, What’s the Average Air Conditioner Gas Leak Repair Cost in Sydney?
Depending on your unit and the severity of the leak, here’s a rough breakdown of common services:
| Service | Estimated Cost (AUD) |
|---|---|
| Leak Detection Only | $150 – $250 |
| Minor Leak Repair | $200 – $400 |
| Major Leak or Coil Repair | $500 – $1,200 |
| Gas Refill (R410A) | $150 – $300 |
| Full AC System Repair | $800+ |
Factors that affect AC gas leak repair cost include:
Unit type (split system, ducted, or central AC)
Severity and location of the leak
Refrigerant type (e.g., R410A is common in newer units)
Emergency or after-hours callouts
💡 Searching for AC gas leak repair cost near me or air conditioner repair cost Eastern Suburbs? We service all over Sydney, including Northern Beaches and the Eastern Suburbs.
Types of Units & Cost Breakdown
Split AC Gas Leak Repair Cost
Most common in Aussie homes
Easier to access and repair
Cost: $250 – $600 (repair + refill)
Central AC Gas Leak Repair Cost
More complex duct systems
Leak detection may take longer
Cost: $400 – $1,000+
What’s Included in AC Gas Leak Repair Services?
At Innovation Air Conditioning, our aircon leak detection and repair services typically include:
Leak detection (using UV dye or electronic sniffers)
Pressure testing
Sealing or replacing faulty components
Air conditioning refrigerant top up
System performance test post-repair
All handled by licensed HVAC technicians—no shortcuts, just reliable work.
Need help fast? We also provide emergency AC repair for gas leaks near Sydney.
AC Gas Refill vs Full Repair – What’s Better?
Sometimes the leak is too minor to warrant full component replacement. A cost of air conditioning gas refill might solve the issue temporarily. However, if your unit keeps losing gas, it’s time to get a proper fix.
Cost to Refill Refrigerant in Air Conditioner
Starts at $150 for smaller systems
Larger systems may need 2-3kg of refrigerant (adds cost)
If your system uses older refrigerants, prices might be higher due to phase-out regulations under the Australian Government’s Ozone Protection Program.
Is It Worth Repairing an AC Gas Leak?
Good question. Here’s our general rule:
Newer unit (under 7 years)? Yes, go ahead with the repair.
Older system (10+ years)? Consider upgrading.
Our technicians are happy to give you an honest assessment, and if needed, we can guide you through your options with our Air Conditioning Installations service.
How Long Does AC Refrigerant Last After Repair?
With a proper repair and top-up, your refrigerant can last years—as long as there are no new leaks. We use high-quality components and offer affordable air conditioning repair in Sydney with lasting results.
Get Help from Trusted Sydney Experts
Whether you’re in the Northern Beaches, Eastern Suburbs, or anywhere around Sydney, our team at Innovation Air Conditioning is here to help.
👉 Visit our Air Conditioning Repairs page to learn more.
🛠 Need fast help? Contact us today for a free quote or emergency booking.
Final Thoughts
Don’t let a refrigerant leak drag down your comfort (or spike your power bill). Knowing the AC gas leak repair cost upfront can help you plan and act quickly. Whether it’s a small fix or a full refrigerant recharge, having it done by a licensed HVAC professional ensures your home stays safe, efficient, and cool.