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Air Conditioning Repair in Oshawa

Is your air conditioner blowing warm air, making odd noises, or refusing to start? Don’t sweat it. At Limcan Certified, we offer 24/7 air conditioning repair in Oshawa, evenings and weekends. Our expert technicians respond fast, diagnose accurately, and restore your system quickly so you can enjoy a cool, comfortable home again. Book your air conditioning service today—we’ve got you covered.

Limcan HVAC specialist performing furnace repair on a heating sy

Why Choose Limcan Certified for Your Air Conditioning Repair?

We’re On Our Way!

Quick, dependable, and always nearby—our local AC technicians are available year-round for same-day air conditioner repair. No subcontractors, no waiting—just reliable, responsive service when you need it most.

Repairs That Last, Not Just Quick Fixes

Some companies patch the issue. We fix the problem at its root. Our certified experts thoroughly diagnose your system and provide long-term air conditioning service to prevent repeat failures. It’s how we save you time, money, and hassle.

Reliable Local Experts with Decades of Experience

With over 60 years of service across Durham Region, Limcan Certified is a reliable name in air conditioning repair. Our licensed technicians understand the unique needs of Oshawa homes and bring expert-level care to every job.

Customer-First Service with a Satisfaction Guarantee

We make repairs simple and stress-free. From clear communication to expert recommendations, we ensure you feel confident every step of the way. And with our 100% satisfaction guarantee, you can rest easy knowing your AC repair is done right.

Is your AC struggling to keep up or making strange noises? Choose Limcan Certified for fast, expert air conditioner repair—with no after-hours charges or surprise fees. Book your repair today and stay cool.

Our Air Conditioning Repair Process

Step 1: Full System Inspection

We check every key component—condenser, evaporator coils, compressor, wiring, and refrigerant—to identify the real issue. Our detailed approach prevents unnecessary repairs and catches minor issues before they get worse.

Step 2: Advanced Diagnostic Testing

We test thermostats, motors, refrigerant pressure, and electrical systems using advanced tools. This ensures we fix the cause—not just the symptoms—of your AC problem.

Step 3: Upfront Repair Recommendations

You’ll receive a clear diagnosis and fair repair options with upfront pricing. No guesswork, no jargon—just straight answers so you know exactly what to expect.

Step 4: Reliable Parts Replacement

If a part needs replacement, we use high-quality components—capacitors, thermostats, and motors—to ensure lasting repairs. Our trucks are fully stocked, so we can fix most issues on the spot.

Step 5: System Cleaning & Efficiency Boost

We clean coils, filters, and drain lines to restore airflow and improve energy efficiency. A cleaner system cools better, lasts longer, and saves you money on energy bills.

Step 6: Final Testing & Optimization

Before we leave, we run complete performance checks—airflow, temperature, and system controls—to confirm your AC is working perfectly.

Common Air Conditioning Problems

Even well-maintained systems can run into trouble. Here are some of the most common issues our team repairs:

AC Running but Not Cooling

  • Refrigerant Leak: Low refrigerant levels reduce your system’s ability to absorb and remove heat from your home.
  • Thermostat Malfunction: A broken thermostat may fail to activate the system or maintain the desired temperature.
  • Blocked Condenser Coils: Dust, dirt, or debris on the outdoor coils can prevent efficient heat release, reducing cooling performance.

AC Won’t Turn On

  • Faulty Capacitor: A failing capacitor can stop your AC from starting and may produce a clicking or humming sound.
  • Electrical Failure: Issues with wiring, relays, or the power supply can disrupt system operation and keep the unit off.
  • Tripped Breaker or Blown Fuse: An overloaded circuit, short, or power surge may cut electricity to the system.

Strange Noises or Leaks

  • Buzzing or Rattling Sounds: These noises can come from loose hardware or failing electrical parts inside the unit.
  • Hissing Sound: A hissing noise could point to a refrigerant leak or escaping gas from a pressure valve.
  • Water Pooling Around the Unit: A clogged drain line can cause water to collect, leading to leaks, mould, or shutdowns.

If you’re noticing any of these issues, Limcan Certified’s certified technicians are ready to help. We’ll identify the problem fast, explain your options with upfront pricing, and restore your cooling system’s performance.

Frequently Asked Questions About Air Conditioning Repair

Is your AC acting up? Limcan Certified delivers reliable air conditioning repair with 24/7 emergency service, transparent pricing, and long-lasting solutions. Our licensed experts restore your comfort fast. Book your repair today and beat the heat.

How Often Should I Have My Air Conditioner Serviced?

It’s best to service your air conditioner once a year, preferably in spring, before the heat of summer sets in. Routine air conditioning service helps prevent unexpected failures and extends your system’s life. During a tune-up, a qualified technician will clean the coils, inspect refrigerant levels, and test key electrical parts. Regular AC repair and maintenance also help spot minor issues before they turn into major problems.

How Much Does It Cost to Fix an Air Conditioner That Is Not Cooling?

Repair costs vary depending on the problem. Common issues include refrigerant leaks, blocked condenser coils, and thermostat malfunctions—all of which require a professional diagnosis. Some air conditioning repairs are quick and affordable, while others may involve more detailed work to restore full performance.

How Many Years Does an Air Conditioner Last?

Most central AC units last between 10 and 15 years, while window units usually last 8 to 10 years. With proper care and routine maintenance, some systems can run smoothly for 20 years or longer. Regular servicing is key to maximizing lifespan and avoiding premature replacement.

When Should I Replace My AC?

If your AC is more than 10–15 years old, breaks down often, or can’t cool your home properly, replacement might be more cost-effective than ongoing repairs. If the cost to fix your system approaches half the price of a new one, upgrading to a high-efficiency unit can lower future repair bills and reduce energy use. Limcan Certified can inspect your current setup, evaluate repair versus replacement, and recommend the best option for your needs and budget.