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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 2372 customer reviews

Customers say: The overall sentiment across these reviews is overwhelmingly positive, reflecting high customer satisfaction and appreciation for the service provided. Customers consistently express strong approval of the professionalism, knowledge, and courtesy demonstrated by the technicians. Recurring themes include praise for friendly and polite demeanor, thorough and efficient work, and clear communication throughout the service process. Many reviewers emphasize the trustworthiness and reliability of the company, with several noting long-term positive relationships and repeat satisfaction over multiple years. The tone is enthusiastic and grateful, with customers frequently using superlative language to describe their experiences. There is a notable appreciation for technicians who are personable yet professional, who take time to explain their work and answer questions, and who demonstrate genuine expertise in HVAC systems. The sentiment reflects a strong sense of confidence in the quality of service, with many customers expressing their willingness to recommend the company and their happiness in having chosen this provider for their HVAC needs. Overall, the reviews convey a consistent pattern of excellent customer experiences characterized by competence, respect, and reliability.

Job Locations and Reviews

Daniel B.
Daniel B. Checked in
No AC
Carterville, IL 62918
Jakob E.
Jakob E. Checked in
2026 PCSA AC Check Up Renewal AC Maintenance Started run check by checking wire connection. Made sure thermostats operating normal. Replaced the filters. Clean drain line and outdoor units.Main units filter grill was making a humming noise. Technician turned down blower speed the noise went away and freon levels are all good. Systems are operational run check is complete.
Makanda, IL 62958
Jakob E.
Jakob E. Checked in
2026 PCSA AC Check Up Prepaid AC Maintenance Started AC maintenance by checking wire connections. Made sure thermostat is operating normally. Replace one of the filters with customers filters and other filter with ours. Clean drain line and outdoor unit. Checked Freon levels. System is operational run checks are complete.
Makanda, IL 62958
Daniel B.
Daniel B. Checked in
Replace damaged parts
Carbondale, IL 62902
Jakob E.
Jakob E. Checked in
2026 PCSA AC Check Up Prepaid AC Maintenance Started run check by checking wire connections. Made sure thermostat is operating normally. Replace the filters. Clean drain line and outdoor unit. Checked Freon levels. Run check is complete.
West Frankfort, IL 62896
Jakob E.
Jakob E. Checked in
Started run check by checking wire connections. Replace the filters. Clean drain line and outdoor unit. Checked Freon levels. System is operational run check is complete.
Marion, IL 62959
Daniel B.
Daniel B. Checked in
2026 PCSA AC Check Up Prepaid AC Maintenance Checked wire connections. Replaced filters. Flushed drain lines. Thermostat was operating normally. Puron levels were within normal range. Cleaned outdoor coil. Everything was clean and checked out well. System is operating normally at this time.
Marion, IL 62959
Review
service call
Jones - De Soto, IL 62924
Review
Great Personality! Very professional!
Seavers - Creal Springs, IL 62922
Daniel B.
Daniel B. Checked in
2026 PCSA AC Check Up Free W. New Install AC Maintenance Checked wire connections. Flushed drain line. Thermostat was operating normally. Replaced filter (customer provided). Puron levels were within normal range. Cleaned outdoor coil. Everything was clean and checked out well. System is operating normally at this time.
Creal Springs, IL 62922
Daniel B.
Daniel B. Checked in
No AC
Marion, IL 62959
Jakob E.
Jakob E. Checked in
2026 PCSA AC Check Up Free W. New Install AC Maintenance Started run check by checking wire connections. Customer replaces the filters. Clean drain line and outdoor unit. Checked Freon levels. Run check is complete.
De Soto, IL 62924
Jakob E.
Jakob E. Checked in
2026 PCSA AC Check Up Renewal AC Maintenance Started run check by checking wire connections. Replace the filter. Cleaned drain line and outdoor unit. Checked Freon levels. Run check is complete.
Carterville, IL 62918
Daniel B.
Daniel B. Checked in
Tenant had concerns about system running constantly. Upon arrival found dirty filter, condenser coil, and weak capacitor. Replaced capacitor, cleaned coil, and removed filter to check system operation. Pressures did not seem low but added 2 pounds of refrigerant as current air temperatures were not good. After adding refrigerant air temperatures only improved slightly. Will have a second opinion to see if there’s something we haven’t caught yet. At time of service all coils are clean, no heating elements are stuck on, charge was perfect, and blower motor was performing properly. 7/20/26 Returned and checked system operation. System is pulling air from multiple locations throughout the apartment including behind the thermostat. This negative pressure maybe caused by an issue with the duct work. Need to inspect when we return for repairs. Replaced thermostat due to it being several degrees off correct ambient temperature and sealed hole behind it. Temperature drop is still not normal. No
Carterville, IL 62918
Jakob E.
Jakob E. Checked in
No AC call. Indoor coil was frozen. Technician waited for the coil to thaw out so we could check Freon levels. AC unit needed 2 pounds of Freon and customer is going to replace the filter.
Herrin, IL 62948
Pete F.
Pete F. Checked in
2026 PCSA AC Check Up Renewal AC Maintenance Done 7/20/26 Replaced filter with customer supplied filter. Checked wiring, temp drop, Freon levels and washed outdoor unit. System operating properly at time of service
West Frankfort, IL 62896
Review
Asked if he could look into the zone system for my house. Which he did and said working fine. Explained the service performed and leak check process
Koegler - Herrin, IL 62948
Jakob E.
Jakob E. Checked in
Started run check by checking wire connections. Made sure thermostat is operating normally. Customer replaces the filters. Clean drain line and outdoor unit. AC unit needed 1 pound of Freon. System is operational run check is complete.
Herrin, IL 62948
Review
Very professional and honest
Babington - Carterville, IL 62918
Daniel B.
Daniel B. Checked in
2026 PCSA AC Check Up Prepaid AC Maintenance
Carterville, IL 62918
Jakob E.
Jakob E. Checked in
2026 PCSA AC Check Up Renewal AC Maintenance Started run check by checking wire connections. Replace the filter. Clean drain line and outdoor unit. AC unit needed 1 pound of Freon. System is operational run check is complete.
Carterville, IL 62918
Review
I would highly recommend Charlie's Heating and Cooling. Pete was great to work with and resolved the issue in a timely manner. We are exceptionally pleased with the level of service given it was an after hours service call. This is the only company that I will call for my hvac related services.
Zach - Johnston City, IL 62951
Pete F.
Pete F. Checked in
Replaced capacitor. Compressor now operating
Johnston City, IL 62951
Pete F.
Pete F. Checked in
Replaced Arcoaire ECM blower motor. System now operating properly
Marion, IL 62959
Jakob E.
Jakob E. Checked in
2026 PCSA AC Check Up Prepaid AC Maintenance Start a run check by checking wire connections. Replace the filter with one of customers filters. Clean drain line and outdoor unit. Checked Freon levels. System is operational run check is complete.
De Soto, IL 62924
Jakob E.
Jakob E. Checked in
2026 PCSA AC Check Up Prepaid AC Maintenance
De Soto, IL 62924
Jakob E.
Jakob E. Checked in
2026 PCSA AC Check Up Prepaid AC Maintenance Started run check by checking wire connections. Replace the filter. Clean drain line and outdoor unit. AC unit needed 1 pound of Freon. System is operational. Run check is complete.
Cambria, IL 62915
Jakob E.
Jakob E. Checked in
Customers complaint outdoor unit was not running. AC unit had a bad capacitor. Technician replaced the capacitor and the AC is operating normally now. Well technician was here customer had a maintenance renewal. Technician started by checking wire connections. Made sure thermostat is operating normally. Clean drain line and outdoor unit. AC unit needed 1 pound of Freon. Run check is complete.
Herrin, IL 62948
Jakob E.
Jakob E. Checked in
2026 PCSA AC Check Up Prepaid AC Maintenance Started run check by checking wire connections. Customer replaces the filters. Cleaned drain line and outdoor unit. Checked Freon levels. Need a schedule appointment to come back out and replace the thermostat. Customer has a thermostat from ameren.
Herrin, IL 62948
Jakob E.
Jakob E. Checked in
Started a run check by checking wire connections. Checked the filters and the filters were passable. Clean drain line and outdoor unit. AC unit needed 2 pounds of Freon . Going to monitor Freon levels during future check ups. System is operational run check is complete.
Carterville, IL 62918
Review
Daniel has always helped us out and has always been nothing less than excellent.
Derek - Marion, IL 62959
Review
Was professional and courteous
Guetersloh - Marion, IL 62959
Review
Prompt and worked diligently to figure out the issue
Callahan - Carterville, IL 62918
Review
In and out
Steinacher - Carterville, IL 62918
Review
Great Job
Jerri - Vienna, IL 62995
Review
Jacob was professional and very knowledgeable.
Boner - Herrin, IL 62948
Review
Daniel provided check up on A/C system. Always great service. Always on time and always friendly.
Robert - Harrisburg, IL 62946
Review
Excellent service on time and polite
Callahan - Carterville, IL 62918
Review
Hey Young, full of energy. Does a great job. Was
Chuck - Royalton, IL 62983
Review
Very good. Pleasant & professional young man.
Furlow - Christopher, IL 62822

Recent Jobs and Reviews in De Soto, IL

Rated 5.0 out of 5 stars based on 71 customer reviews

Customers say: The overall sentiment across these reviews is overwhelmingly positive, reflecting high customer satisfaction and appreciation for the service provided. Customers consistently express strong approval of the professionalism, knowledge, and courtesy demonstrated by the technicians. Recurring themes include praise for friendly and polite demeanor, thorough and efficient work, and clear communication throughout the service process. Many reviewers emphasize the trustworthiness and reliability of the company, with several noting long-term positive relationships and repeat satisfaction over multiple years. The tone is enthusiastic and grateful, with customers frequently using superlative language to describe their experiences. There is a notable appreciation for technicians who are personable yet professional, who take time to explain their work and answer questions, and who demonstrate genuine expertise in HVAC systems. The sentiment reflects a strong sense of confidence in the quality of service, with many customers expressing their willingness to recommend the company and their happiness in having chosen this provider for their HVAC needs. Overall, the reviews convey a consistent pattern of excellent customer experiences characterized by competence, respect, and reliability.

Our Local Reviews by City

Job Locations and Reviews

Review
service call
Jones - De Soto, IL 62924
Jakob E.
Jakob E. Checked in
2026 PCSA AC Check Up Free W. New Install AC Maintenance Started run check by checking wire connections. Customer replaces the filters. Clean drain line and outdoor unit. Checked Freon levels. Run check is complete.
De Soto, IL 62924
Jakob E.
Jakob E. Checked in
2026 PCSA AC Check Up Prepaid AC Maintenance Start a run check by checking wire connections. Replace the filter with one of customers filters. Clean drain line and outdoor unit. Checked Freon levels. System is operational run check is complete.
De Soto, IL 62924
Jakob E.
Jakob E. Checked in
2026 PCSA AC Check Up Prepaid AC Maintenance
De Soto, IL 62924
Jakob E.
Jakob E. Checked in
2026 PCSA AC Check Up Renewal AC Maintenance Air Conditioning Repair
De Soto, IL 62924
Jakob E.
Jakob E. Checked in
2026 PCSA AC Check Up Renewal AC Maintenance Start a run check by checking wire connections. Made sure thermostat is operating normally. Customer replaces the filters. Clean drain line and outdoor unit. Check Freon levels. Customer stated that the farthest east room is warmer than the rest of the house. Technician check the airflow and the room has good airflow and TD. Keep an eye on for future check ups.
De Soto, IL 62924
Jakob E.
Jakob E. Checked in
2026 PCSA AC Check Up Prepaid AC Maintenance Air Conditioning Repair DeSoto
De Soto, IL 62924
Daniel B.
Daniel B. Checked in
Water in floor
De Soto, IL 62924
Daniel B.
Daniel B. Checked in
AC Maintenance Checked wire connections. Replaced filters. Flushed drain lines. Thermostats were operating normally. Freon levels were within normal range. Cleaned outdoor coils. Capacitor for the upstairs compressor was getting weak. Replaced capacitor. Everything else was clean and checked out well. All systems are operating normally at this time.
De Soto, IL 62924
Review
Real Good
Drew - De Soto, IL 62924
Jakob E.
Jakob E. Checked in
2026 PCSA AC Check Up Prepaid AC Maintenance Air Conditioning Repair
De Soto, IL 62924
Daniel B.
Daniel B. Checked in
2026 PCSA AC Check Up Renewal AC Maintenance Checked wire connections. Replaced filter (customer provided). Flushed drain lines. Freon levels were within normal range. Cleaned outdoor coil. Contactor on outdoor coil is heavily worn. Recommend replacing during a future check up. Everything else was clean and checked out well. System is operating normally at this time.
De Soto, IL 62924
Daniel B.
Daniel B. Checked in
AC Maintenance PCSA 2026 a/c check up renewal Checked wire connections. Replaced filter. Flushed drain line. Thermostat was operating normally. Puron levels were within normal range. Cleaned outdoor coil. Contactor on outdoor coil was looking very worn. Replaced under warranty (parts warranty only). Everything else was clean and checked out well. System is operating normally at this time.
De Soto, IL 62924
Review
Excellent Service
Chavez - De Soto, IL 62924
Jakob E.
Jakob E. Checked in
2026 PCSA AC Check Up Prepaid AC Maintenance Air Conditioning Repair
De Soto, IL 62924
Jakob E.
Jakob E. Checked in
2026 AC Check Up Free W. New Install AC Maintenance Air Conditioning Repair Desoto
De Soto, IL 62924
Jakob E.
Jakob E. Checked in
2026 AC Check Up Renewal AC Maintenance Technician check wire connections. Made sure the thermostat is operating normally. Customer replaces the filters. Clean drain line and outdoor unit. Checked Freon levels. run check is complete.
De Soto, IL 62924
Review
Both super nice guys!! Got the job done quick and great price!! Will recommend. Thank you again!!
Jessica - De Soto, IL 62924
Daniel B.
Daniel B. Checked in
Complaint no cool
De Soto, IL 62924
Jakob E.
Jakob E. Checked in
2025 PCSA Heating Check Up Free W. New Install Heating Maintenance Heating Repair De Soto
De Soto, IL 62924
Jakob E.
Jakob E. Checked in
Heating Maintenance De Soto Technician checked wire connections. Made sure thermostat is operating normal. Replace the filter. Checked electric heaters. Checked Freon levels and defrost.
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
Jakob E.
Jakob E. Checked in
Technician to replace the filter. HVAC Service
De Soto, IL 62924
Pete F.
Pete F. Checked in
2025 PCSA Heating Check Up Prepaid Heating Maintenance Furnace Repair De Soto
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.
De Soto, IL 62924
Jakob E.
Jakob E. Checked in
Heating Maintenance PCSA 2025 heating check up renewal Furnace Repair De Soto
De Soto, IL 62924
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
Review
Great service
Hertz - De Soto, IL 62924
Review
Excellent service
Jones - De Soto, IL 62924
Review
I’ve been with Charlie’s for years and will not use anyone else
Tammy - 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
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
Review
Great service and very professional.
Chavez - 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

Five Star Service. Five Reviews.

Read Reviews
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