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Air Conditioning & Heating Experts in Carterville, IL

Charlie's Air Conditioning & Heating has provided Carterville, IL, excellent heating and AC service, repair, installation and system replacement for almost 40 years. We specialize in heating and cooling services as well as blown-in insulation.

What Makes Charlie's Different (and Better!) for Local Carterville Families?

Why pick Charlie's Air Conditioning & Heating as your HVAC contractor? We have been trusted to heat and cool local homes and have the expertise to keep you cool and comfortable in the summer and nice and warm in the winter. We also stock a variety of American-made products that could change how you interact with your heating or cooling system.

We install only YORK products so we can provide you with the finest examples of furnaces, air conditioners and heat pumps. Upgrading and get significant savings on your utility bills as the new HVAC systems are built to operate at maximum efficiency.

Check out our glowing reviews and discover why your neighbors consider us to be their nearby heating and air company in Carterville, IL.

Recent Jobs and Reviews in Carterville, IL

Rated 5.0 out of 5 stars based on 777 customer reviews

Job Locations and Reviews

Pete F.
Pete F. Checked in
Complaint no heat Found bad limit switch. Replaced limit, cleaned flame sensor and flushed drain
Carterville, IL 62918
Review
Good job.
Tholen - Carterville, IL 62918
Daniel B.
Daniel B. Checked in
HVAC Service Furnace Repair Carterville 2024 Fall Check Up PCSA Prepaid
Carterville, IL 62918
Review
5 stars
Lutchka - Carterville, IL 62918
Gerson C.
Gerson C. Checked in
2024 PCSA Heating Check Up Prepaid Heating Maintenance Completed heating maintenance, cleaned flame sensor and drain, filter is in good condition, checked system operation and found no issues, checked for gas leaks and found none, made sure system is working properly System is heating at this time
Carterville, IL 62918
Review
Daniel
Frease - Carterville, IL 62918
Pete F.
Pete F. Checked in
2025 PCSA Heating Check Up Renewal Heat Pump Heating Maintenance
Carterville, IL 62918
Pete F.
Pete F. Checked in
2024 PSCA Heating Check Up Renewal Heat pump Heating Maintenance
Carterville, IL 62918
Gerson C.
Gerson C. Checked in
2024 PCSA HEAT ONLY Renewal Heating Maintenance Completed heating maintenance, cleaned flame sensor and burners, burners were very rusty and are developing holes in some spots, informed customer about this and some burners may need replaced in the future, checked system operation and found no issues at this time System is operational
Carterville, IL 62918
Gerson C.
Gerson C. Checked in
2024 PCSA Heating Check Up Prepaid Heating Maintenance Completed heating maintenance, cleaned flame sensor, replaced filter, checked system operation and found no issues, made sure system is working properly System is heating at this time
Carterville, IL 62918
Daniel B.
Daniel B. Checked in
Replace TXV
Carterville, IL 62918
Gerson C.
Gerson C. Checked in
HVAC Maintenance Cleaned blower wheel, blower compartment, secondary heat exchanger, and evaporator coil, verified system operation System is heating at this time
Carterville, IL 62918
Gerson C.
Gerson C. Checked in
2024 PCSA Heating Check Up Renewal Heating Maintenance Completed heating maintenance, coils are clean, replaced filter, checked system operation and found no issues, made sure system is working properly System is heating at this time
Carterville, IL 62918
Review
Excellent service
Brown - Carterville, IL 62918
Pete F.
Pete F. Checked in
Complaint: Furnace set off smoke detector and side of furnace hot. Found air filter extremely dirty. Checked system operation, checked blower cap and amperage. System was operating normally. 0 ppm of CO in air stream.
Carterville, IL 62918
Pete F.
Pete F. Checked in
Gas Furnace Heating Maintenance PCSA 2024 Heating Check Up Renewal
Carterville, IL 62918
Gerson C.
Gerson C. Checked in
2024 PCSA Heating Check Up Renewal Heating Maintenance Completed heating maintenance, replaced filter, checked system operation and found no issues, made sure both systems are working properly Both systems are heating at this time
Carterville, IL 62918
Review
I love Charlie's!
Jenny - Carterville, IL 62918
Pete F.
Pete F. Checked in
Replaced heater package
Carterville, IL 62918
Gerson C.
Gerson C. Checked in
Complaint no heat Found burnt fuse, found electrical short coming from outside unit, found rub through thermostat wire, covered wire with tape and foam to prevent any other shorts, checked connections at thermostat, air handler, and outside unit and verified system operation System is heating at this time
Carterville, IL 62918
Pete F.
Pete F. Checked in
Performed scheduled heating maintenance on a heat pump system, model Trane XV20i. I started by checking the air filter for dirt and wear, replacing it with a new MERV 13 filter to improve airflow. Then, I cleaned the evaporator and condenser coils to ensure optimal heat exchange. I inspected the reversing valve for any signs of wear, confirming it was functioning correctly to switch between heating and cooling modes. The refrigerant levels were checked and topped off using R-454B to ensure efficient operation. The system's thermostat was calibrated, and the drain line was cleared of any debris to prevent blockages. Finally, I tested the unit's overall performance, confirming everything was running smoothly for the upcoming colder months.
Carterville, IL 62918
Gerson C.
Gerson C. Checked in
2024 PSCA Heating Check Up Renewal Heating Maintenance Completed heating maintenance, cleaned flame sensor and drain, filters are clean, checked system operation and found no issues, checked for gas leaks and found none, made sure both systems are working properly Both systems are heating at this time
Carterville, IL 62918
Daniel B.
Daniel B. Checked in
Completed the 2024 PCSA Heating Check-Up Renewal to prepare the heating system for the colder months. I inspected the Carrier Infinity 98 furnace, checking for wear and damage. The MERV 16 filter was replaced, and I cleaned the burner assembly to prevent soot buildup. The flame sensor was cleaned, and the ignitor was checked for reliable startup. I calibrated the thermostat for accurate readings and inspected the gas valve and gas line for safety. The inducer motor and heat exchanger were cleaned, and I tested overall system performance to ensure it’s ready for winter.
Carterville, IL 62918
Daniel B.
Daniel B. Checked in
Performed the 2024 PCSA Heating Check-Up Prepaid maintenance. Replaced the MERV 16 filter, cleaned the burner assembly, and checked the flame sensor and ignitor for optimal operation. Calibrated the thermostat, inspected the gas valve and line, and cleaned the inducer motor and heat exchanger for efficient winter performance.
Carterville, IL 62918
Pete F.
Pete F. Checked in
Completed heat pump heating maintenance on a Trane XV20i system. Replaced the MERV 13 air filter, cleaned the evaporator and condenser coils, and checked refrigerant levels, topping off with R-454B. Inspected the reversing valve for proper function, calibrated the thermostat, and cleared the drain line. The unit was tested for performance, ensuring efficient operation and readiness for the upcoming cold season.
Carterville, IL 62918
Pete F.
Pete F. Checked in
Heat Pump Heating Maintenance PCSA 2024 heating check up prepaid Done 12-17-24
Carterville, IL 62918
Gerson C.
Gerson C. Checked in
Found blower motor intermittently failing, replaced under warranty and verified system operation System is heating at this time
Carterville, IL 62918
Gerson C.
Gerson C. Checked in
2024 PCSA Heating Check Up Renewal Heating Maintenance Completed heating maintenance, coils are clean, replaced filter, checked system operation and found no issues, made sure system is working properly System is heating at this time
Carterville, IL 62918
Shawn C.
Shawn C. Checked in
I installed a new York furnace today in Carterville. The old unit was outdated and inefficient. I removed the old furnace, installed the new York gas furnace, connected the ductwork, and performed a system test. The new furnace is now delivering consistent heat and improved efficiency.
Carterville, IL 62918
Amber W.
Amber W. Checked in
Today, I replaced a York heat pump in Carterville. The system was no longer heating or cooling properly due to a failed compressor. Installed a new York heat pump and recalibrated the thermostat. After running diagnostics, the system is now fully functional, providing consistent temperature control.
Carterville, IL 62918
Review
Friendly and excellent service.
Scott - Carterville, IL 62918
Review
Very Excellent Service
Fahringer - Carterville, IL 62918
Review
Gerson was very professional.
Watson - Carterville, IL 62918
Review
Excellent!
Hagan - Carterville, IL 62918
Review
Excellent service
Brooks - Carterville, IL 62918
Review
As with all of Charlie’s staff, Pete is awesome and it’s obvious that he leads by example. Thanks, Pete!
Gregory - Carterville, IL 62918
Review
Excellent service
Ahner - Carterville, IL 62918
Review
Very Professional and Excellent Customer Service
Rebecca - Carterville, IL 62918
Review
Very efficient check of both systems.
Shafer - Carterville, IL 62918
Review
Friendly, did a great job
Hosch - Carterville, IL 62918
Review
Explained issues thoroughly. Was easy to talk to, courteous, and helpful.
Jan - Carterville, IL 62918
Response from Charlie's Air Conditioning & Heating:

Thank you for taking the time to write, we appreciate you!

Review
Excellent service
Matt - Carterville, IL 62918
Review
Daniel explained everything to me in language I could understand. Suggested a game plan which I intend to follow.
Travers - Carterville, IL 62918
Response from Charlie's Air Conditioning & Heating:

We're so happy Daniel took great care of you, give us a call any time!

Review
Great pleasant service as always from Daniel. He’s always very professional and polite.
Bill - Carterville, IL 62918
Review
Excellent service
Doty - Carterville, IL 62918
Review
on time, polite, professional, knowledgeable. highly recommend
Krissy - Carterville, IL 62918
Review
Very professional, yet friendly.
Polly - Carterville, IL 62918
Review
Always friendly, knowledgeable.....
Greenley - Carterville, IL 62918
Review
Gerson is awesome. He is welcome in our home anytime.
Gregory - Carterville, IL 62918
Review
Very detailed. Did a great job. It was very friendly. Very informative.
Christy - Carterville, IL 62918

Five Star Service. Five Reviews.