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.
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.
Custom system design and retrofits for new construction
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 2062 customer reviews
Customers say: The reviews exhibit a positive sentiment towards Charlie's Air Conditioning and Heating. Customers consistently express satisfaction with the quality of service, professionalism, and expertise of the technicians. Positive reviews highlight the technicians' punctuality, courtesy, and ability to resolve issues efficiently. Customers also appreciate the company's reliability, with many expressing gratitude for the peace of mind that comes with knowing their HVAC systems are in good hands. Additionally, customers mention the friendly and helpful nature of the staff, which contributes to a positive overall experience. Negative reviews are relatively few in number and primarily focus on minor issues or scheduling conflicts. Overall, the reviews suggest that Charlie's Air Conditioning and Heating provides reliable and high-quality service, with a strong emphasis on customer satisfaction and professionalism.
Job Locations and Reviews
Gerson C.Checked in
Found bad condenser fan motor, replaced under warranty and verified system operation
System is cooling at this time
Carterville, IL 62918
Review
Daniel is so kind and explains everything very well. Very professional.
Tim
- Goreville, IL 62939
Review
Very fast response and service.
Lee
- Carterville, IL 62918
Gerson C.Checked in
Found system in a high pressure lockout, replaced condenser fan motor under warranty and verified system operation
System is cooling at this time
Carterville, IL 62918
Gerson C.Checked in
Customer had concerns about a squeaking sound when AC turns on, checked system operation and found no issues at this time, coil and filter are clean, was not able to hear sound when checked system operation
System is operational
Carterville, IL 62918
Daniel B.Checked in
Building #9 was having issues. Cause of the issue was a bad heat relay on north system. This is what caused the thermostat to fail and damaged the low voltage fuses. Replaced relay and tested system operation. Found a minor gas leak on the north system. Repaired leak. And the middle system was having a polarity issue with the board. Adjusted the wiring to solve this issue. All 3 systems are operating in heat and ac mode.
Marion, IL 62959
Jakob E.Checked in
AC Maintenance
Service all a/c equipment for summer operation
Tech did the maintenance on the west unit package unit. Technician changed both of the filters for the west unit. Technician also checked the temperature drop for the west unit while tech was doing the temperature drop. The temper drop was a 1° temperature difference tech proceeded to go to the outdoor unit to check and see if one of the electric heaters were on. Tech found that heater number three was stuck on. Technician unplugged heater number three and went back to check the temp difference. The temperature difference was 15 to 20. Technician we have to come back out to fix heater number three from stopping it from coming on whenever the thermostat is calling for cool. Technician proceeded his check up by checking the Freon. All the Freon levels were good. Technician also checked all the amps on the compressor, the condenser fan motor, and the indoor fan motor, the amps on all those motors checked up good. Technician a
Carterville, IL 62918
Gerson C.Checked in
2025 PCSA AC Check Up Renewal
AC Maintenance
Completed cooling maintenance, coils are clean, flushed drain, replaced filter, checked system operation and found no issues, made sure system is working properly
System is cooling at this time
Carterville, IL 62918
Review
Excellent service
Robert
- Cambria, IL 62915
Jakob E.Checked in
AC Maintenance
Start PCSA 2025 a/c check up
Air Conditioning Repair Cambria
Cambria, IL 62915
Pete F.Checked in
Disconnect was off
Carterville, IL 62918
Gerson C.Checked in
Upon arrival outdoor unit had no power, found breaker turned off at breaker box, turned breaker on and verified system operation
System is cooling at this time
Carterville, IL 62918
Jakob E.Checked in
AC Maintenance
PCSA 2025 a/c check up free w/ install
De Soto, IL 62924
Review
Great service. He is great at his job. And quite knowledgeable!
Jesse
- Marion, IL 62959
Daniel B.Checked in
2025 PCSA AC Check Up Prepaid
AC Maintenance
Marion, IL 62959
Pete F.Checked in
2025 PCSA AC Check Up Prepaid
AC Maintenance
Customer provided filters
Checked operation, cleaned coil, and flushed drain
Marion, IL 62959
Gerson C.Checked in
Coil had previously frozen up, found bad blower motor, replaced blower motor and verified system operation
System is cooling at this time
Hurst, IL 62949
Daniel B.Checked in
2025 PCSA AC Check Up Prepaid
AC Maintenance
Carterville, IL 62918
Gerson C.Checked in
Air Conditioning Repair Carterville
2025 PCSA AC Check Up Prepaid
AC Maintenance
Completed cooling maintenance, cleaned coil, flushed drain, replaced filter, checked system operation and found no issues, made sure system is working properly
System is cooling at this time
Carterville, IL 62918
Daniel B.Checked in
Air Conditioning Repair
AC Maintenance
PCSA 2025 a/c check up prepaid
Goreville, IL 62939
Gerson C.Checked in
Air Conditioning Repair Carterville
2025 PCSA AC Check Up Prepaid
AC Maintenance
Completed cooling maintenance, cleaned coil, flushed drain, replaced filter, checked system operation and found no issues, made sure system is working properly
System is cooling at this time
Carterville, IL 62918
Pete F.Checked in
Air Conditioning Repair
2025 PCSA AC Check Up Prepaid
AC Maintenance Done 6-13-25
Cleaned cond coil, flushed drain and checked Freon
West Frankfort, IL 62896
Gerson C.Checked in
2025 PCSA AC ONLY Check Up Renewal
AC Maintenance
Completed maintenance and replaced TXV, made sure system is working properly
System is operational
De Soto, IL 62924
Daniel B.Checked in
AC Maintenance
PCSA 2025 a/c check up prepaid
Goreville, IL
Jakob E.Checked in
AC Repair Hurst
HVAC Maintenance
Hurst, IL 62949
Daniel B.Checked in
Complaint room 3 has water issue, and room 9 thermostat not operating properly
Marion, IL 62959
Pete F.Checked in
AC Service
Complaint strange smell coming from unit in basement
No smells at time of service. Inspected inside of coil cabinet. Blocked vents in duct in basement and turned on dehumidifier
Carbondale, IL 62903
Review
Great Service!
Galloway
- De Soto, IL 62924
Jakob E.Checked in
AC Maintenance
PCSA 2025 a/c check up renewal
Air Conditioning Repair De Soto
De Soto, IL 62924
Review
Daniel is very knowledgeable, through, and friendly. Always does great work.
Capie
- Carterville, IL 62918
Gerson C.Checked in
Air Conditioning Repair
2025 PCSA AC Check Up Prepaid
AC Maintenance
Completed cooling maintenance, cleaned coil, flushed drain, replaced filter, checked system operation and found no issues, capacitor is starting to go weak and may need replaced next year
System is cooling at this time
West Frankfort, IL 62896
Review
Excellent
Boersma
- Murphysboro, IL 62966
Review
Charlie’s was able to work us into their schedule the week we called for an appointment. The technician was polite, friendly, and professional. Highly recommend!
Lingle
- Carterville, IL 62918
Review
Charlies a/c great service
Fredrickson
- Carbondale, IL 62901
Review
Quick, friendly, efficient service. Prompt, kept me informed of schedule status. Extended warranty covered it!
BT
- Carterville, IL 62918
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
Daniel was on time, friendly, and done and fixed in an hour. He explained the problem and told me what to look out for. He even cautioned me about a problem with a leaking propane tank.
Monty
- Carterville, IL 62918
Review
Gerson was prompt, professional, and courteous. Thank you for the excellent service!
Mike
- Makanda, IL 62958
Review
Pete was very mannerly and kind! Any questions I had he had the answer to. Great guy!
West
- Herrin, IL 62948
Response from Charlie's Air Conditioning & Heating:
Thank you for being a customer!
Review
Excellent technicians
Formel
- Carterville, IL 62918
Recent Jobs and Reviews in De Soto, IL
Rated 5.0 out of 5 stars based on 60 customer reviews
Customers say: The reviews exhibit a positive sentiment towards Charlie's Air Conditioning and Heating. Customers consistently express satisfaction with the quality of service, professionalism, and expertise of the technicians. Positive reviews highlight the technicians' punctuality, courtesy, and ability to resolve issues efficiently. Customers also appreciate the company's reliability, with many expressing gratitude for the peace of mind that comes with knowing their HVAC systems are in good hands. Additionally, customers mention the friendly and helpful nature of the staff, which contributes to a positive overall experience. Negative reviews are relatively few in number and primarily focus on minor issues or scheduling conflicts. Overall, the reviews suggest that Charlie's Air Conditioning and Heating provides reliable and high-quality service, with a strong emphasis on customer satisfaction and professionalism.
AC Maintenance
PCSA 2025 a/c check up free w/ install
De Soto, IL 62924
Gerson C.Checked in
2025 PCSA AC ONLY Check Up Renewal
AC Maintenance
Completed maintenance and replaced TXV, made sure system is working properly
System is operational
De Soto, IL 62924
Review
Great Service!
Galloway
- De Soto, IL 62924
Jakob E.Checked in
AC Maintenance
PCSA 2025 a/c check up renewal
Air Conditioning Repair De Soto
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
Gerson C.Checked in
AC Maintenance
PCSA 2025 a/c check up prepaid
Upon arrival found condenser fan motor shaft seized up, replaced motor under warranty and completed cooling maintenance, coils and filter are clean, flushed drain, made sure system is working properly
System is cooling at this time
De Soto, IL 62924
Gerson C.Checked in
AC Maintenance
PCSA 2025 a/c check up prepaid
Completed cooling maintenance, cleaned coil, flushed drain, filters are provided by customer, checked system operation and found no issues, made sure system is working properly
System is cooling at this time
De Soto, IL 62924
Daniel B.Checked in
AC Maintenance
2025 PCSA AC Check Up START
Air Conditioning Repair De Soto
De Soto, IL 62924
Jakob E.Checked in
AC Maintenance
PCSA 2025 a/c only check up renewal
Air Conditioning Repair De Soto
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!
Gerson C.Checked in
Customer had concerns about AC not keeping up, found tripped breaker, found mice made a nest in electrical compartment in AC unit and chewed up power wires, fixed wiring and checked system operation, found system low on gas, charged unit with 3 pounds of R22 and made sure system is working properly
System is operational
De Soto, IL 62924
Gerson C.Checked in
AC Inspection
Complaint unit not keeping up
Found evaporator coil frozen up, found cause to be dead blower capacitor, replaced capacitor, thawed coil, and verified system operation
System is cooling at this time
De Soto, IL 62924
Jakob E.Checked in
2025 PCSA AC Check Up Renewal
AC Maintenance
Check checks the indoor and outdoor units for the cooling maintenance. Tech checks the indoor units, wire connections, flush the drain. Tech Proceed to go to the outdoor unit to check the Freon, the wire connections, and hoses out the condenser coil.
De Soto, IL 62924
Jakob E.Checked in
2025 PCSA AC Check Up Free. W. New Install
AC Maintenance
Tech check the indoor unit for AC season check all the wire connections and change out the filter. Everything looks good on the indoor unit. Tech goes to the outdoor unit check the wire connections, check the Freon, and hose out the condenser coil. Unit units should be good for cooling season.
De Soto, IL 62924
Jakob E.Checked in
2025 PCSA AC Check Up Prepaid
AC Maintenance
Tech check the indoor unit for cooling season. Tech checked all the connections and change the filter of the indoor unit. Everything in the indoor unit looks good. Tech proceeded go to the outdoor unit and checked all the electronic connections and check the Freon levels. The AC checked up good. The indoor and outdoor unit are good to go for cooling season.
De Soto, IL 62924
Daniel B.Checked in
2025 PCSA AC Check Up Prepaid
AC Maintenance
De Soto, IL 62924
Pete F.Checked in
Complaint no a/c
Found system low of Freon and bad capacitor
Replaced cap and added Freon.
De Soto, IL 62924
Daniel B.Checked in
Air Conditioning Repair De Soto
2025 PCSA AC Check Up Renewal
AC Maintenance
De Soto, IL 62924
Daniel B.Checked in
2025 Spring Check Up PCSA Renew
De Soto, IL 62924
Daniel B.Checked in
Outdoor coil not coming on.
De Soto, IL 62924
Pete F.Checked in
AC Repair DeSoto
2025 Air Conditioning Systems maintenance Done 4-24-25
De Soto, IL 62924
Review
Excellent service and very friendly
Mike
- De Soto, IL 62924
Gerson C.Checked in
System was in a low pressure lockout, found multiple leaks in solder joints, will need to return to repair leaks
4/22/25: returned to fix leaks in solder joints and rub through leak, charged unit with factory charge and verified system operation. No charge per Pete
De Soto, IL 62924
Gerson C.Checked in
Completed leak search, looked at indoor and outdoor coils thoroughly and found no significant signs of leaks, will need to monitor pressures when we come back for maintenance
De Soto, IL 62924
Daniel B.Checked in
Air Conditioning Repair De Soto
2025 PCSA AC Check Up Prepaid
AC Maintenance
De Soto, IL 62924
Gerson C.Checked in
Air Conditioning Repair De Soto
AC Maintenance
Start PCSA 2025 AC Check Up
Completed cooling maintenance, cleaned coil, flushed drain, replaced filter, checked system operation and found no issues, made sure system is working properly
System is cooling at this time
De Soto, IL 62924
Gerson C.Checked in
Coil had recently frozen up, found system low on gas, charged unit with 2 pounds of refrigerant and got better pressures, customer had concerns about condenser fan motor running loudly, replaced motor with approval from customer, customer would like to schedule a leak search
De Soto, IL 62924
Review
Excellant Service
Crow
- De Soto, IL 62924
Pete F.Checked in
Heat Pump Repair De Soto
Replaced Thermostat on heat pump system
De Soto, IL 62924
Review
Fast, professional, excellent service always!
Kevin
- De Soto, IL 62924
Pete F.Checked in
Replaced thermostat
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
Review
Great job 😁
Pendall
- De Soto, IL 62924
Review
annual maintenance
Jones
- De Soto, IL 62924
Review
Very Satisfied
EAC
- De Soto, IL 62924
Review
As always, Justin was very thorough and even checked my fire alarms. I appreciate the professional way my appointments are always handled
Holder
- De Soto, IL 62924
Response from Charlie's Air Conditioning & Heating:
Thank you for being a customer! We're happy Justin could take care of you!
Review
Did a great job 👍
Pendall
- De Soto, IL 62924
Response from Charlie's Air Conditioning & Heating:
Thank you for your business!
Review
Awesome service
Bill
- De Soto, IL 62924
Review
Friendly, thorough and professional service. Highly recommended!