Checking for AC Refrigerant Leaks: Signs, Risks & Solutions

September 2, 2025

As summer temperatures climb in Vaughan, Toronto, and surrounding Ontario communities, your air conditioning system is more essential than ever. But what happens when your AC isn’t cooling your home or business as efficiently as it used to? One of the most common—and costly—culprits is a refrigerant leak. At Airsense Mechanical, we understand how crucial a properly functioning AC is for comfort and energy efficiency. Read on to discover the key signs, risks, and solutions for AC refrigerant leaks, along with expert tips tailored for our local climate.


What Is an AC Refrigerant Leak?


Refrigerant is the lifeblood of your air conditioning system, circulating through coils to absorb and release heat, ensuring your home stays cool and comfortable. A refrigerant leak occurs when this vital fluid escapes from the sealed system, commonly due to wear and tear, corrosion, or faulty installation. Unlike fuel, refrigerant does not get "used up"—if levels drop, it’s a sure sign of a leak.


Signs of AC Refrigerant Leaks: What Vaughan and GTA Homeowners Should Watch For


Living in areas like Markham, Richmond Hill, or Mississauga, a sudden decline in AC performance can quickly make your space uncomfortable. Knowing the warning signs of a refrigerant leak can help you act fast:


  • Reduced Cooling Power: If your AC takes longer to cool down rooms or never quite reaches the desired temperature, low refrigerant may be the cause.
  • Higher Energy Bills: Inefficiency due to leaks means your system works overtime, leading to noticeable increases in electricity costs.
  • Ice Formation on Coils: Low refrigerant causes evaporator coils to become too cold, resulting in frost or ice buildup.
  • Hissing or Bubbling Noises: These sounds may indicate gases escaping from small cracks or holes in the refrigerant lines.
  • Humidity Problems: Inconsistent or poor humidity control is a red flag that your AC system is not cycling refrigerant properly.


Why Prompt AC Repair for Refrigerant Leaks Is Crucial


Ignoring signs of an air conditioner refrigerant leak puts your comfort, wallet, and even health at risk. Here’s why fast action is critical for Vaughan and GTA homeowners:


  • System Damage: Running an AC with low refrigerant can strain the compressor, leading to major breakdowns and expensive repairs.
  • Energy Waste: A leaking AC is far less efficient, increasing your carbon footprint and energy bills.
  • Indoor Air Quality: Refrigerant leaks can reduce your AC system’s ability to filter out humidity, encouraging mold and poor air quality.
  • Environmental Impact: Many refrigerants are potent greenhouse gases. Responsible repair helps protect the Ontario environment for future generations.


Expert Solutions for AC Refrigerant Leaks from Airsense Mechanical


As your trusted local HVAC experts, Airsense Mechanical provides professional solutions that restore comfort and safeguard your investment:


1. Comprehensive Diagnostics

Our licensed technicians use advanced tools to pinpoint the exact source of refrigerant loss—whether it’s a minor connection or a significant line rupture.


2. Leak Repair and System Restoration

We specialize in fast, effective repairs using manufacturer-approved materials to seal leaks and prevent future issues. Our services extend across Vaughan, Etobicoke, Aurora, Toronto, and more.


3. Refrigerant Recharge

Once repairs are complete, we accurately recharge your system with the correct refrigerant amount for optimal cooling and efficiency.


4. Preventive Maintenance

Annual air conditioner maintenance can catch potential issues early. We offer affordable AC maintenance plans for homeowners and businesses throughout the GTA.


How to Prevent Future Refrigerant Leaks


Prevention is always better than cure, especially when it comes to AC repair. Consider these tips for a worry-free cooling season:


  • Schedule annual AC inspections with Airsense Mechanical
  • Keep the outdoor unit clear of debris and vegetation
  • Replace filters regularly to reduce strain on the system
  • Address small problems promptly before they escalate


Serving Vaughan, Toronto, and Surrounding Areas


Airsense Mechanical proudly serves Vaughan, Etobicoke, Aurora, Markham, Maple, Pickering, Newmarket, Toronto, Ajax, Richmond Hill, Mississauga, Scarborough, Brampton, and Barrie. Our commitment to quality and customer satisfaction means you’ll receive reliable HVAC repair, transparent pricing, and expert advice every time.


Contact Airsense Mechanical for Fast, Reliable AC Leak Repair


Don’t let a refrigerant leak disrupt your comfort or your budget this summer. Contact Airsense Mechanical for prompt, professional air conditioner repair and maintenance throughout the GTA. Call us today or request a service appointment online at www.airsensemech.com—let us help you keep your cool, all season long.

Share This Blog

A woman is sitting on the floor warming her hands on a radiator.
October 29, 2025
Protect your home’s HVAC system as temperatures drop. Follow these essential fall maintenance tips to avoid costly AC and heat pump repairs.
A bunch of gauges are hanging from a hook on a table.
October 21, 2025
Upgrade to a Navien high-efficiency boiler for maximum comfort and energy savings in Ontario. Learn about features and installation tips.
A man is working on a boiler with a wrench.
October 15, 2025
Considering a combi boiler? Explore the high-efficiency benefits and why it’s perfect for updated GTA and Ontario homes this fall.
A person is holding a cell phone next to a thermostat.
October 7, 2025
Upgrade to a smart thermostat to save on energy bills and boost your home’s HVAC efficiency. See features Ontario families love this fall.
A compact, furnished upstairs room at home featuring a mini AC.
September 24, 2025
Struggling with hot upper floors? Discover how ductless HVAC systems offer targeted cooling for even, efficient comfort throughout your home.
A white air conditioner is hanging from the ceiling
September 16, 2025
Compare ductless AC systems and ductless heat pumps for heating and cooling. Find the ideal solution for your Ontario home’s comfort needs.
A man is fixing an air conditioner on the ceiling.
September 10, 2025
Prepare your air conditioner for the end of summer. Use our fall AC repair checklist to keep your system running efficiently all year.
A man and a woman are looking at air conditioners in a store.
August 27, 2025
Understand SEER ratings for air conditioners and discover how choosing high-efficiency models saves energy and money in Ontario homes.
Woman relaxing on a couch, using AC remote. Light gray interior with a shelf.
August 23, 2025
Uncover common myths about ductless AC installation in Vaughan. Learn the facts and benefits with expert guidance from Airsense Mechanical’s local HVAC team.
Closeup of AC with frozen interior panel, ready for repair.
August 19, 2025
Frozen AC coils or pipes? Discover the main reasons and get expert tips on how to safely address and prevent future HVAC freezing issues.