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De Soto IL AC and Heating Experts

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HVAC Services in De Soto, IL | Charlie’s Air Conditioning & Heating

Reliable Heating & Cooling for De Soto Homeowners

At Charlie’s Air Conditioning & Heating, we’ve been proudly serving the families of De Soto, IL with trusted HVAC services since 1982. Located just minutes from Carterville, we understand the unique heating and cooling needs of Southern Illinois homes. Whether you need fast AC repair, expert furnace replacement, or energy-efficient heat pump installation, our experienced technicians are ready to help—backed by over four decades of hands-on experience.

Air Conditioning Repair & Installation in De Soto

When the summer heat hits De Soto, you need an air conditioning system that can keep up. Our technicians are trained to diagnose and repair all AC brands and models. If it’s time for a new system, we offer expert AC installation near Carterville, IL and surrounding towns, including De Soto. From air conditioners to air conditioning maintenance, we ensure your system runs smoothly all summer long.

Need emergency help? We’re known for quick, practical service—schedule service today.

Common AC Problems we fix in De Soto

  • Refrigerant leaks and recharging
  • Compressor failures and replacements
  • Electrical issues and faulty capacitors
  • Frozen evaporator coils
  • Thermostat malfunctions

Furnace Repair & Heating Services for Cold Illinois Winters

Our winters can be harsh, but you can stay comfortable with heating service from Charlie’s. We provide fast, affordable heating repair, furnace installation, and regular heating maintenance in De Soto. If you’re wondering whether to repair or replace, we can walk you through your options and provide a free estimate.

We also work with modern, energy-saving heat pumps and hybrid systems to maximize efficiency.

Year-Round HVAC Maintenance in De Soto

Regular maintenance is the best way to avoid emergency repairs and extend the life of your HVAC system. Our preventative HVAC maintenance program helps De Soto homeowners reduce costs and enjoy better comfort throughout the year. Tune-ups are quick, affordable, and come with priority scheduling.

Not sure if it’s time for a new system? Check out the signs you need a new HVAC.

Spring/Summer AC Tune-Up:

  • Refrigerant level check and adjustment
  • Electrical connection inspection
  • Condenser coil cleaning
  • Performance optimization

Fall/Winter Heating Tune-Up:

  • Gas line and heat exchanger inspection
  • Ignition system testing
  • Airflow measurement and adjustment
  • Safety control verification

Why De Soto Chooses Charlie’s Air Conditioning & Heating

We’re not a faceless national chain. Charlie and Linda built this company from their home in 1982, and today our locally owned team continues to serve De Soto and the surrounding communities with dependable, no-nonsense HVAC service. Learn more about our story and why generations of Southern Illinois families trust us with their home comfort.

Additional Services Available in De Soto

Get a Free Estimate or Schedule Service in De Soto, IL

When you call Charlie’s Air Conditioning & Heating, you’re getting more than just another HVAC company—you’re choosing a team that values integrity, efficiency, and long-term relationships. Call us today at (618) 985-2502 or book online for heating and air conditioning in De Soto, IL.

Recent Jobs and Reviews

Rated 5.0 out of 5 stars based on 2278 customer reviews

Customers say: The reviews exhibit a positive sentiment towards Charley's Air Conditioning and Heating. The majority of customers express satisfaction with the quality of service, professionalism, and expertise of the technicians. Positive reviews frequently mention friendly and personable service providers, timely and efficient service, and effective problem resolution. Customers also appreciate the company's reliability, punctuality, and willingness to accommodate their schedules. Additionally, many reviews highlight the technicians' knowledge, courtesy, and ability to explain technical issues in a clear and understandable manner. However, a few negative reviews exist, primarily concerning pricing and billing issues. Customers express dissatisfaction with unexpected charges, billing errors, and the need for additional repairs. While these negative reviews exist, the overall sentiment remains positive, with a clear majority of customers expressing satisfaction with Charley's Air Conditioning and Heating's services.

Job Locations and Reviews

Jakob E.
Jakob E. Checked in
Technician washed outdoor unit.
Carterville, IL 62918
Jakob E.
Jakob E. Checked in
2025 PCSA Heating Check Up Renewal Heating Maintenance
Carterville, IL 62918
Daniel B.
Daniel B. Checked in
2025 PCSA Heating Check Up Renewal Checked wire connections. Replaced filter. Due to customer running a humidifier, more debris was in the filter this time. In the future, the filter may need to be replaced every 3 months instead of 6. Will monitor during future check ups. Heat strips were operating normally. Thermostat was operating normally. Puron levels were within normal range. Defrost mode was operating normally. Contactor on outdoor coil is starting to look worn. Will monitor and replace during a future check up. Everything else was clean and checked out well. System is operating normally at this time.
De Soto, IL 62924
Jakob E.
Jakob E. Checked in
Heating Maintenance Technician checked wire connections. Made sure thermostat is operating normally. Replace the filter. Checked burners and igniter. Clean flame sensor and drain hoses. Check CO reading in the airstream.
Murphysboro, IL 62966
Daniel B.
Daniel B. Checked in
2025 PCSA Heating Check Up Renewal Heating Maintenance Checked wire connections. Replaced filter. Flushed drain lines. Burners were clean. Cleaned flame sensor. CO levels were within range. Control board was free of codes. Everything else was clean and checked out well. System is operating normally at this time.
Marion, IL 62959
Jakob E.
Jakob E. Checked in
2025 PCSA Heating Check Up Start Heating Maintenance Technician check wire connections. Made sure thermostat is operating normally. Customer replaces the filters. Checked burners, and checked igniter. Cleaned flame sensor and drain hoses. Check CO reading in the airstream.
Herrin, IL 62948
Daniel B.
Daniel B. Checked in
2025 PCSA Heating Check Up Renewal Heating Maintenance
Johnston City, IL 62951
Jakob E.
Jakob E. Checked in
Heating Maintenance PCSA 2025 heating check up renewal Technician check wire connections. Made sure thermostat is operating normally. Customer replaces the filters. Checked electric heaters. Checked Freon levels, and checked defrost.
Herrin, IL 62948
Daniel B.
Daniel B. Checked in
Stuff blower out of the mini split
Carterville, IL 62918
Jakob E.
Jakob E. Checked in
2025 PCSA Heating Check Up Free W. New Install Heating Maintenance Technician checked wire connections. Made sure thermostat is operating normally. Replace the filter. Checked burners, and checked igniter. Clean flame sensor and clean drain hoses. Check CO reading in airstream. HVAC Service Carterville
Carterville, IL 62918
Jakob E.
Jakob E. Checked in
2025 PCSA Heating Check Up Free W. New Install Heating Maintenance Technician checked wire connections. Made sure thermostat is out normally. The filter is possible. Checked electric heaters. Checked Freon level, and check defrost.
Herrin, IL 62948
Jakob E.
Jakob E. Checked in
HVAC Service Carbondale 2025 PCSA Heating Check Up Renewal Heating Maintenance Technician checked wire connections. Made sure thermostat is operating normally. Replace the filter. Checked electric heaters. Check Freon levels, and check defrost.
Carbondale, IL 62902
Jakob E.
Jakob E. Checked in
2025 PCSA Heating Check Up Free W. New Install Heating Maintenance Technician checked wire connections. Made sure thermostat is operating normally. Replace the filters. Checked burners, and checked igniter. Cleaned flame sensor and clean drain hoses. Heat Pump Service Carbondale
Carbondale, IL 62901
Daniel B.
Daniel B. Checked in
2025 PCSA Heating Check Up Renewal Heating Maintenance Checked wire connections. Filters will need cleaned next check up. Thermostat was operating normally. Heat strips were operating normally. Puron levels were within normal range. Defrost mode was operating normally. Everything was clean and checked out well. System is operating normally at this time.
Goreville, IL 62939
Daniel B.
Daniel B. Checked in
Noise coming from furnace
Grantsburg, IL 62943
Jakob E.
Jakob E. Checked in
2025 PCSA Heating Check Up Renewal Heating Maintenance Technician check wire connections. Made sure thermostat is operating normally. Replaced one out of the two filters. Checked electric heaters. Checked Freon levels, and check defrost.
Carterville, IL 62918
Review
Daniel did a great job and was very thorough about his work. He explained every issue in terms that I could understand! What a great guy!!
West - Herrin, IL 62948
Daniel B.
Daniel B. Checked in
2025 PCSA Heating Check Up Renewal Heating Maintenance
Herrin, IL 62948
Review
Always efficient and gets right to work. Daniel is a good tech.
Kemp - Marion, IL 62959
Jakob E.
Jakob E. Checked in
2025 PCSA Heating Check Up Renewal Heating Maintenance Technician check wire connections. Made sure thermostat is operating normally. Customer replaces the filters. Clean flame sensor and drain hoses. Checked burners and igniter. Check CO reading in airstream. HVAC Service Energy
Energy, IL 62933
Jakob E.
Jakob E. Checked in
2025 PCSA Heating Check Up Prepaid Heating Maintenance Technician check wire connections. Made sure thermostat is operating normally. Checked electric heaters. Replaced the filter. Checked Freon levels, and checked defrost.
Herrin, IL 62948
Daniel B.
Daniel B. Checked in
Heat Pump Repair Marion 2025 PCSA Heating Check Up Prepaid Heating Maintenance Checked wire connections. Customer replaced filters recently. West thermostat buttons were a little worn out but both thermostats were operating normally. Heat strips were operating normally. East heat pump TXV was still a little off but both systems Freon levels were within normal range. Defrost mode was operating normally. Everything else was clean and checked out well. Both systems are operating normally at this time.
Marion, IL 62959
Daniel B.
Daniel B. Checked in
PCSA 2025 heating check up prepaid
Carbondale, IL 62902
Jakob E.
Jakob E. Checked in
2025 PCSA Heating Check Up Renewal Heating Maintenance Technician checked wire connections. Made sure thermostat is operating normally. Checked electric heaters. Replaced the filter. Checked Freon levels, and check defrost.
Vienna, IL 62995
Review
Very Satisfied
David - Marion, IL 62959
Jakob E.
Jakob E. Checked in
2025 PCSA Heating Check Up Renewal Heating Maintenance
Carbondale, IL 62901
Jakob E.
Jakob E. Checked in
2025 PCSA Heating Check Up Renewal Heating Maintenance Technician checked wire connections. Made sure thermostat is operating normally. Customer replaces the filters. Checked burners and igniter. Cleaned flame sensor and drain hoses. Check CO reading and flu pipe and air stream HVAC Service Makanda
Makanda, IL 62958
Pete F.
Pete F. Checked in
2025 PCSA Heating Check Up Prepaid Heating Maintenance Done 2-6-26 Checked system operation, replaced filter and checked Freon
West Frankfort, IL 62896
Review
Service done in timely manner.
D. Rushing - Marion, IL 62959
Review
Excellent worker. Nice gentleman
Jim - Herrin, IL 62948
Review
Five
Miller - Carterville, IL 62918
Review
Excellent service from Daniel as usual. Best in the business!
Ray - Pittsburg, IL 62974
Review
Excellent Service!
Jeremy - Marion, IL 62959
Review
Daniel is always polite and explains everything he is doing while working on my system.
Simmons - Marion, IL 62959
Review
Daniel is a great asset to your business please ensure that he stay with your company what ever it takes.
Bob - Marion, IL 62959
Review
Great service
Rich - Carterville, IL 62918
Review
Charlie’s Air Conditioning and Heating are the best! Honest and dependable
Kathy - Carbondale, IL 62903
Review
Great service
Donna - Johnston City, IL 62951
Review
Excellent service
Horn - Carterville, IL 62918
Review
excellent service
Newman - Marion, IL 62959

Recent Jobs and Reviews in De Soto, IL

Rated 5.0 out of 5 stars based on 67 customer reviews

Customers say: The reviews exhibit a positive sentiment towards Charley's Air Conditioning and Heating. The majority of customers express satisfaction with the quality of service, professionalism, and expertise of the technicians. Positive reviews frequently mention friendly and personable service providers, timely and efficient service, and effective problem resolution. Customers also appreciate the company's reliability, punctuality, and willingness to accommodate their schedules. Additionally, many reviews highlight the technicians' knowledge, courtesy, and ability to explain technical issues in a clear and understandable manner. However, a few negative reviews exist, primarily concerning pricing and billing issues. Customers express dissatisfaction with unexpected charges, billing errors, and the need for additional repairs. While these negative reviews exist, the overall sentiment remains positive, with a clear majority of customers expressing satisfaction with Charley's Air Conditioning and Heating's services.

Our Local Reviews by City

Job Locations and Reviews

Daniel B.
Daniel B. Checked in
2025 PCSA Heating Check Up Renewal Checked wire connections. Replaced filter. Due to customer running a humidifier, more debris was in the filter this time. In the future, the filter may need to be replaced every 3 months instead of 6. Will monitor during future check ups. Heat strips were operating normally. Thermostat was operating normally. Puron levels were within normal range. Defrost mode was operating normally. Contactor on outdoor coil is starting to look worn. Will monitor and replace during a future check up. Everything else was clean and checked out well. System is operating normally at this time.
De Soto, IL 62924
Jakob E.
Jakob E. Checked in
2025 PCSA Heating Check Up Free W. New Install Heating Maintenance Technician checked wire connections. Made sure thermostats operating normally. Checked electric heaters. Customer replaces the filter filters. Checked Freon levels, and check defrost.
De Soto, IL 62924
Jakob E.
Jakob E. Checked in
2025 PCSA Heating Check Up Prepaid Heating Maintenance Technician checked wire connections. Made sure thermostat is operating normally. Customer replaces the filters. Checked electric heaters. Checked Freon levels, and check defrost.
De Soto, IL 62924
Review
Excellent service
Bill - De Soto, IL 62924
Jakob E.
Jakob E. Checked in
2025 PCSA Heating Check Up Prepaid Heating Maintenance Technician check wire connections. Made sure thermostat is operating normally. Replace the filters. Checked electric heaters. Checked Freon levels, and checked defrost.
De Soto, IL 62924
Jakob E.
Jakob E. Checked in
2025 PCSA Heating Check Up Prepaid Heating Maintenance Tech technician check wire connections. Made sure thermostat operating normally. Customer replaces the filters. Checked electric heaters.
De Soto, IL 62924
Review
Great service
Hertz - De Soto, IL 62924
Daniel B.
Daniel B. Checked in
Customer is concerned with the vibration coming from the cabinets in the kitchen. The cause of the issue is the lineset resting against the wall causing it to vibrate. Despite efforts to help alleviate the issue, further steps will need to be taken. System appears to be operating normally at this time.
De Soto, IL 62924
Jakob E.
Jakob E. Checked in
2025 PCSA Heating Check Up Free W. New Install Heating Maintenance HVAC Service De Soto
De Soto, IL 62924
Jakob E.
Jakob E. Checked in
2025 PCSA Heating Check Up Prepaid Heating Maintenance HVAC Repair De Soto
De Soto, IL 62924
Daniel B.
Daniel B. Checked in
2025 Fall Check Up PCSA Prepaid/No heat
De Soto, IL 62924
Jakob E.
Jakob E. Checked in
Heat Pump Maintenance PCSA 2025 heating check up prepaid HVAC Repair De Soto
De Soto, IL 62924
Review
Excellent service
Jones - De Soto, IL 62924
Jakob E.
Jakob E. Checked in
2025 PCSA Heating Check Up Renewal Heating Maintenance Furnace Repair De Soto
De Soto, IL 62924
Review
I’ve been with Charlie’s for years and will not use anyone else
Tammy - De Soto, IL 62924
Jakob E.
Jakob E. Checked in
2025 PCSA Heating Check Up Renewal Heating Maintenance Heat Pump Repair De Soto
De Soto, IL 62924
Daniel B.
Daniel B. Checked in
Heating Repair De Soto 2025 Fall Check Up PCSA New/No Heat
De Soto, IL 62924
Daniel B.
Daniel B. Checked in
I was called to a home to fix a leak in the air conditioner. I found the leak and repaired it.
De Soto, IL 62924
Jakob E.
Jakob E. Checked in
AC Repair Desoto Air Conditioning Maintenance
De Soto, IL 62924
Jakob E.
Jakob E. Checked in
I performed an AC maintenance check on a PCSA AC unit in De Soto.
De Soto, IL 62924
Review
Serviceman was friendly and on time. He worked very quickly and got the job done. He was very knowledgeable.
Larry - De Soto, IL 62924
Daniel B.
Daniel B. Checked in
2025 PCSA AC Check Up Prepaid AC Maintenance
De Soto, IL 62924
Pete F.
Pete F. Checked in
AC Service Complaint no cool System very low of refrigerant. Customer approved Freon.
De Soto, IL 62924
Pete F.
Pete F. Checked in
AC Service Not enough cool call. Found outdoor unit was very dirty and both filters were dirty. Cleaned outdoor unit and replaced filters with ones provided by the customer.
De Soto, IL 62924
Daniel B.
Daniel B. Checked in
AC Service Complaint no cool
De Soto, IL 62924
Jakob E.
Jakob E. Checked in
HVAC Service De Soto AC Maintenance PCSA 2025 a/c check up renewal Technician checked the wire connections, replaced the filter, flushed the drain line, and made sure the thermostat was operating normally. Freon levels looked good and outdoor coil was cleaned. System is operational at this time.
De Soto, IL 62924
Review
My air was not working when I got home and I called at 9:30pm to see if I could get someone out. Daniel was there by 10:30 and got it fixed right up. He was great and I’m so thankful for not having to go the night with my house being 90 degrees.
Sarah - De Soto, IL 62924
Daniel B.
Daniel B. Checked in
Air Conditioning Repair De Soto No AC HVAC Service
De Soto, IL 62924
Review
Great service and very professional.
Chavez - De Soto, IL 62924
Gerson C.
Gerson C. Checked in
Customer had concerns about AC not keeping up, found dead capacitor, replaced capacitor and verified system operation System is cooling at this time
De Soto, IL 62924
Gerson C.
Gerson C. Checked in
Customer had concerns about system not keeping up, checked system operation and found unit low on gas, charged system with a pound of refrigerant and got better pressures, recommended scheduling a leak search to see if we can find where the leak is coming from System is operational
De Soto, IL 62924
Gerson C.
Gerson C. Checked in
Customer had concerns about evaporator coil dripping and possible drain leak, tested drain line for leaks and found no issues, found evaporator coil partially frozen up, also found condenser coil packed with grass and dirt, cleaned condenser coil and checked system operation, found system low on gas, charged unit with 2 pounds of R22 and made sure system is working properly. Found drain line dripping due to open hole in wall bringing humidity/heat from inside the wall into the furnace closet and causing drain line to condensate and drip. Informed customer about this and recommended covering holes in the wall. Double checked for dripping after charging unit and did not see any more dripping from evaporator coil. System is operational
De Soto, IL 62924
Review
Great Service!
Galloway - De Soto, IL 62924
Review
I was so grateful that you moved my appointment from Tuesday to Monday when you discovered I had no air conditioning. As always the service I receive from your company is excellent and you have the friendly servicemen. They are kind and considerate and very knowledgeable in their work.
Jones - De Soto, IL 62924
Review
Gerson C., my service technician, was on time, very friendly and informative, went above & beyond what was expected, and answered all my questions. Would be glad to have him again if needed.
Larry - De Soto, IL 62924
Response from Charlie's Air Conditioning & Heating:

Thank you so much for being a customer! Call us any time!

Review
Excellent service and very friendly
Mike - De Soto, IL 62924
Review
Excellant Service
Crow - De Soto, IL 62924
Review
Fast, professional, excellent service always!
Kevin - De Soto, IL 62924
Review
Couldn't ask for more. Been a satisfied customer for almost 20 years.
CC - De Soto, IL 62924
Response from Charlie's Air Conditioning & Heating:

Thank you for being a customer!

Review
Thorough, professional, friendly service as always!
Kevin - De Soto, IL 62924
Review
Great
Scott - De Soto, IL 62924
Review
Excellent service!
Bill - De Soto, IL 62924
Review
He was awesome 👏 A plus for me thanks
Jeff - De Soto, IL 62924
Review
Excellent
Sarah - De Soto, IL 62924
Response from Charlie's Air Conditioning & Heating:

Thank you for your business!

Review
Great experience and Justin was the epitome of customer service!
Mary - De Soto, IL 62924
Response from Charlie's Air Conditioning & Heating:

Thank you, Mary! Our guys are the best! We appreciate your business.

Review
Excellent service and very quick to respond to my issue.
Carole - De Soto, IL 62924
Review
He was great
Ellis - De Soto, IL 62924
Review
Justin is always courteous and does a great job.
Bill - De Soto, IL 62924
Review
Personal knowledgeable overall service call
Crow - De Soto, IL 62924
Review
Very professional and great service.
Chavez - De Soto, IL 62924

Five Star Service. Five Reviews.

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Badge Since 1982 Charlies Heat And Air