In Mokena, IL, home comfort isn’t a part-time job. From humid, sticky summer afternoons to frigid winter nights, your home’s heating, ventilation, and air conditioning (HVAC) system is your family’s shield against the elements. When one part of that system fails—the furnace in January or the air conditioner in July—your comfort and peace of mind are broken with it. You don’t just need a repair; you need a complete home comfort specialist.
Potocki Heating & Air Conditioning is Mokena’s dedicated specialist for comprehensive residential HVAC repair. We understand that “HVAC” covers your entire home climate, and our certified technicians have the expertise to diagnose and fix your complete system, from the furnace to the air conditioner. If your home comfort is compromised, call our local experts now at 815-693-5579 for a prompt, professional diagnosis.

Your Complete Home Comfort Partner in Mokena
The term “HVAC” can be confusing. It simply refers to your entire, interconnected system. You don’t need to find a “heating guy” in the winter and an “AC guy” in the summer. At Potocki Heating & Air Conditioning, we simplify your life. We are Mokena’s single, trusted source for all home heating and cooling repair needs. One call to us provides you with a certified expert who can handle it all.
- Heating Services: Full diagnosis and repair of furnaces, heat pumps, and thermostats.
- Ventilation Services: Checking and repairing ductwork, fans, and blowers to ensure clean, efficient airflow.
- Air Conditioning Services: Complete repair of central air units, including compressors, coils, and refrigerant issues.
Expert Residential Heating and Furnace Repair
A freezing home in Mokena is an emergency, not an inconvenience. Our technicians are on call to respond quickly, armed with the tools and parts to solve the most common furnace problems. We don’t just treat the symptom; we find the root cause to ensure a lasting repair.
Common heating repairs we solve:
- Faulty Ignitors or Pilot Lights: The most common reason a furnace won’t start.
- Blower Motor Failure: The furnace heats up, but no warm air circulates through your home.
- Thermostat Malfunctions: Your furnace doesn’t get the correct signal to turn on or off.
- Failed Limit Switches: A critical safety component that can cause your furnace to shut down.
For complex issues, you can learn more about our dedicated expert furnace repair and installation services.
Fast, Dependable Air Conditioning Repair
When your air conditioner gives out during a Mokena heatwave, your home can become dangerously hot. Our residential HVAC repair team is fully equipped to handle all models of air conditioners. We prioritize getting your cool air back on so your family can be comfortable and safe.
Common AC repairs we solve:
- Refrigerant Leaks: Your system is running, but the air coming out isn’t cold.
- Frozen Evaporator Coils: Often a sign of low refrigerant or a blocked airflow (like a dirty filter).
- Faulty Capacitors or Contactors: Your outside unit won’t turn on or hums without starting.
- Clogged Condensate Drains: This can cause water to back up, leading to system shutdowns and potential water damage.
We are also Mokena’s choice for reliable AC repair and new system installations.
Don’t let a broken system ruin your comfort. Whether it’s 90 degrees or 9 degrees, Potocki Heating & Air Conditioning is ready. Call 815-693-5579 for a fast, accurate diagnosis and repair.
Why Mokena Homeowners Choose Potocki Heating & Air Conditioning
When your home’s comfort system fails, you’re inviting a technician into your home. You deserve a partner you can trust. Potocki Heating & Air Conditioning has built our reputation in Mokena by being that trustworthy, local, and expert choice.
One Call for All Seasons
We simplify your life. You don’t need to keep track of different companies for different seasons. Our technicians are certified and experienced in all aspects of residential HVAC. We are your year-round partner for total home comfort, and we follow the highest industry standards, like those set by the Air-Conditioning, Heating, and Refrigeration Institute (AHRI).
Honest Diagnostics, No Upselling
Our business philosophy is simple: we fix what’s broken. When you call us for a repair, our goal is to find the most effective and economical solution to your problem. We will give you a clear, upfront price for the repair, and we will *never* pressure you into a full system replacement you don’t need. Our goal is to earn your trust for life, not make a single sale.
True Local Experts
We’re not a faceless national chain that sees Mokena as just a pin on a map. We are a local business. We live and work here, and we understand the specific demands our harsh Illinois climate places on residential systems. We know what works, what fails, and how to provide solutions that last.
Residential HVAC Repair: Common Questions
What is the difference between HVAC and a furnace or AC?
HVAC (Heating, Ventilation, and Air Conditioning) is the name for your *entire* home comfort system. Your furnace is the “H” (Heating) component, and your air conditioner is the “AC” (Air Conditioning) component. A residential HVAC repair service, like ours, means we are certified to diagnose and repair all parts of that interconnected system.
How do I know if I need a repair or a full replacement?
This is a major concern for homeowners. We help you make an informed decision by looking at three factors:
- Age: Most furnaces last 15-20 years and ACs 10-15 years. If your unit is near this age, replacement becomes a stronger consideration.
- Repair Cost: If a single repair costs 40-50% of a new unit, it’s often more financially sound to invest that money in a new, more efficient system.
- Repair Frequency: Are you calling for repairs every year? Those costs add up, and it’s a clear sign your system is failing.
We will always provide you with an honest breakdown of these factors, helping you see the best long-term value, as recommended by U.S. Department of Energy guidelines.
Do you service all brands?
Yes. Our technicians are trained and certified to service all major brands of residential furnaces, air conditioners, and heat pumps. Regardless of who installed it or how old it is, we have the expertise to diagnose the problem and source the correct parts for the repair.
For any residential HVAC repair in Mokena, IL, from a minor fix to an urgent emergency, trust the comprehensive experts at Potocki Heating & Air Conditioning. Contact us online or call us directly at 815-693-5579 for prompt, professional service.