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AC, Furnace & Plumbing Services in St. Charles, MO

Your HVAC and plumbing systems are essential parts of your St. Charles home. You could face discomfort and even property damage if they aren’t working correctly. That’s why you need to keep the number of a trusted home services company on hand for any unexpected problems.

Classic Aire Care is a family-owned company providing top-notch plumbing and HVAC services for homeowners and business owners in and around St. Charles, MO. Our highly trained team is available 24 hours a day, 7 days a week for our client’s heating, cooling, and plumbing needs. 

Furnace Repair & Installation Services

technician's hands repairing a gas furnace

It can get downright freezing in St. Charles during the winter. You must be sure you can rely on your heating system to keep your family warm. Classic Aire Care provides heating services for residential and commercial clients. Turn to us for:

We can also perform routine maintenance to help prevent costly heating repairs in the future.

Contact Classic Aire Care online or call (314) 329-1943 to set up plumbing or HVAC services in St. Charles, MO.

Schedule Your Service Today!

Air Conditioning Repair & Replacement Services

ductless mini-split outside of house.

Stay cool all summer by keeping your air conditioner in tip-top shape. You can count on Classic Aire Care for reliable cooling services. We’ll make sure you aren’t sweating once the temperatures soar.

Our skilled HVAC technicians can perform air conditioning installation, replacement, repair, or maintenance services for your:

To schedule air conditioning services in St. Charles, MO, reach out to Classic Aire Care online or call (314) 329-1943.

Plumbing Repair Services

Plumber installs a new electric water heater

Plumbing problems are inconvenient, messy, and difficult to fix without help from a professional. You can rely on our team for the plumbing services you need. We handle plumbing installations, replacements, and repairs for homeowners. Whether you want a new water heater or need drain cleaning services, you can rest assured we’ll do the job right.

Commercial HVAC & Plumbing Services in St. Charles, MO

HVAC or plumbing problems can cause considerable disruption to your business. Keep your customers happy and your business running smoothly by taking care of plumbing or HVAC issues ASAP. Our company offers commercial air conditioning, heating, and plumbing services for business owners in our community. You can expect us to treat you like you treat your customers: We’ll show up on time, provide honest pricing, and get the job done right the first time.

If you need commercial heating, air conditioning, or plumbing services in St. Charles, MO, contact Classic Aire Care online or call (314) 329-1943 today.

Why Choose Classic Aire Care?

Trust Classic Aire Care for your residential or commercial HVAC and plumbing needs in St. Charles. We’re available 24 hours a day, 7 days a week to fix any heating, cooling, or plumbing issues. We’ve been helping our clients stay comfortable since 1926, and our reviews show why we’re still a top choice for home services in our community. Our job is only done once you’re 100% satisfied with our work.

Contact Classic Aire Care online or call (314) 329-1943 today to make an appointment with our home service company in St. Charles, MO.

Recent Jobs and Reviews in Saint Charles, MO

Saint Charles, MO at a glance

Classic Aire Care has completed 20 jobs in Saint Charles, MO in October 2026.

The most recent job was on October 16, 2026.

Classic Aire Care has completed 497 jobs in Saint Charles, MO in the last 12 months.

Job Locations and Reviews

Performed routine heating tune-up on a 10+ year-old gas furnace and ductless unit, inspecting the burner assembly, gas valve, inducer motor, pressure switch, venting, and wiring connections. Found heavy rust and corrosion on the gas supply piping and fittings near the burner assembly, along with staining on the burner housing and a disconnected crimp terminal on a green wire; recommend further evaluation and repair of the corroded gas piping. System was operating properly at the time of service.
Performed routine heating tune-up on a 10+ year-old gas furnace and ductless unit, inspecting the burner assembly, gas valve, inducer motor, pressure switch, venting, and wiring connections. Found heavy rust and corrosion on the gas supply piping and fittings near the burner assembly, along with staining on the burner housing and a disconnected crimp terminal on a green wire; recommend further evaluation and repair of the corroded gas piping. System was operating properly at the time of service.
Greg M.
Greg M. Checked in
Performed routine heating tune-up on a 10+ year-old gas furnace and ductless unit, inspecting the burner assembly, gas valve, inducer motor, pressure switch, venting, and wiring connections. Found heavy rust and corrosion on the gas supply piping and fittings near the burner assembly, along with staining on the burner housing and a disconnected crimp terminal on a green wire; recommend further evaluation and repair of the corroded gas piping. System was operating properly at the time of service.
Saint Charles, MO 63303
Performed a seasonal heating tune-up on a Goodman furnace, inspecting internal wiring and components and measuring amp draw with a clamp meter to verify proper electrical operation. Checked supply duct temperatures to confirm normal heating performance; the system was operating properly with no faults or symptoms found. Noted cracked and deteriorated insulation on the refrigerant line set, which should be replaced to prevent energy loss and condensation issues.
Performed a seasonal heating tune-up on a Goodman furnace, inspecting internal wiring and components and measuring amp draw with a clamp meter to verify proper electrical operation. Checked supply duct temperatures to confirm normal heating performance; the system was operating properly with no faults or symptoms found. Noted cracked and deteriorated insulation on the refrigerant line set, which should be replaced to prevent energy loss and condensation issues.
Chase M.
Chase M. Checked in
Performed a seasonal heating tune-up on a Goodman furnace, inspecting internal wiring and components and measuring amp draw with a clamp meter to verify proper electrical operation. Checked supply duct temperatures to confirm normal heating performance; the system was operating properly with no faults or symptoms found. Noted cracked and deteriorated insulation on the refrigerant line set, which should be replaced to prevent energy loss and condensation issues.
Saint Charles, MO 63304
Performed a heating tune-up on two gas furnace units, including inspection of the burner assembly, flue venting, and heat exchanger, along with cleaning and testing of safety controls and ignition components. Verified proper combustion, draft, and airflow through the plenum and ductwork; no visible rust, frost, or damage was found, and both units were operating normally at completion.
Performed a heating tune-up on two gas furnace units, including inspection of the burner assembly, flue venting, and heat exchanger, along with cleaning and testing of safety controls and ignition components. Verified proper combustion, draft, and airflow through the plenum and ductwork; no visible rust, frost, or damage was found, and both units were operating normally at completion.
Greg M.
Greg M. Checked in
Performed a heating tune-up on two gas furnace units, including inspection of the burner assembly, flue venting, and heat exchanger, along with cleaning and testing of safety controls and ignition components. Verified proper combustion, draft, and airflow through the plenum and ductwork; no visible rust, frost, or damage was found, and both units were operating normally at completion.
Saint Charles, MO 63304
Performed an on-site estimate for new light fixture installation in a kitchenette area, assessing the existing flush-mount ceiling fixture in the drop ceiling and the three-light vanity-style fixture above the sink, along with nearby switch and receptacle locations. Documented existing conditions and confirmed no visible damage or code concerns, with the work scope prepared for fixture replacement.
Performed an on-site estimate for new light fixture installation in a kitchenette area, assessing the existing flush-mount ceiling fixture in the drop ceiling and the three-light vanity-style fixture above the sink, along with nearby switch and receptacle locations. Documented existing conditions and confirmed no visible damage or code concerns, with the work scope prepared for fixture replacement.
Aidan W.
Aidan W. Checked in
Performed an on-site estimate for new light fixture installation in a kitchenette area, assessing the existing flush-mount ceiling fixture in the drop ceiling and the three-light vanity-style fixture above the sink, along with nearby switch and receptacle locations. Documented existing conditions and confirmed no visible damage or code concerns, with the work scope prepared for fixture replacement.
Saint Charles, MO 63301
Performed a complete tune-up on a single gas furnace, including inspection of the blower motor assembly, control board, wiring, pressure switch, and condensate/PVC piping. Verified electrical operation with a clamp meter, measuring amperage draw on the blower circuit, and removed accumulated dust and debris from the cabinet interior. Confirmed the filter housing and components were in proper working order.
Performed a complete tune-up on a single gas furnace, including inspection of the blower motor assembly, control board, wiring, pressure switch, and condensate/PVC piping. Verified electrical operation with a clamp meter, measuring amperage draw on the blower circuit, and removed accumulated dust and debris from the cabinet interior. Confirmed the filter housing and components were in proper working order.
Greg M.
Greg M. Checked in
Performed a complete tune-up on a single gas furnace, including inspection of the blower motor assembly, control board, wiring, pressure switch, and condensate/PVC piping. Verified electrical operation with a clamp meter, measuring amperage draw on the blower circuit, and removed accumulated dust and debris from the cabinet interior. Confirmed the filter housing and components were in proper working order.
Saint Charles, MO 63303
Performed a seasonal tune-up on one 9-year-old gas furnace, including inspection of the unit and verification of operation in heat mode. Inspected the return air filter and confirmed proper airflow components. Verified thermostat communication and operation, noting a wireless signal fault indicator and cracking in the wall surface around the thermostat mounting.
Performed a seasonal tune-up on one 9-year-old gas furnace, including inspection of the unit and verification of operation in heat mode. Inspected the return air filter and confirmed proper airflow components. Verified thermostat communication and operation, noting a wireless signal fault indicator and cracking in the wall surface around the thermostat mounting.
Travis A.
Travis A. Checked in
Performed a seasonal tune-up on one 9-year-old gas furnace, including inspection of the unit and verification of operation in heat mode. Inspected the return air filter and confirmed proper airflow components. Verified thermostat communication and operation, noting a wireless signal fault indicator and cracking in the wall surface around the thermostat mounting.
Saint Charles, MO 63304
Diagnosed a thermostat with no power or display and a furnace running continuously by inspecting the low-voltage control circuit, including the 24V transformer, wiring connections, and control board. Verified the transformer and low-voltage wiring at the furnace control board, restored 24V power to the thermostat circuit, and confirmed the furnace now cycles on and off normally in response to thermostat calls for heat.
Diagnosed a thermostat with no power or display and a furnace running continuously by inspecting the low-voltage control circuit, including the 24V transformer, wiring connections, and control board. Verified the transformer and low-voltage wiring at the furnace control board, restored 24V power to the thermostat circuit, and confirmed the furnace now cycles on and off normally in response to thermostat calls for heat.
Vince D.
Vince D. Checked in
Diagnosed a thermostat with no power or display and a furnace running continuously by inspecting the low-voltage control circuit, including the 24V transformer, wiring connections, and control board. Verified the transformer and low-voltage wiring at the furnace control board, restored 24V power to the thermostat circuit, and confirmed the furnace now cycles on and off normally in response to thermostat calls for heat.
Saint Charles, MO 63304
Performed a tune-up on the basement furnace, including inspection and cleaning of the flame sensor and removal and servicing of the igniter assembly. Verified electrical operation with a digital clamp meter, checking amperage draw and control circuit readings to confirm proper function of the unit. Reassembled all components and confirmed the furnace was operating correctly at completion.
Performed a tune-up on the basement furnace, including inspection and cleaning of the flame sensor and removal and servicing of the igniter assembly. Verified electrical operation with a digital clamp meter, checking amperage draw and control circuit readings to confirm proper function of the unit. Reassembled all components and confirmed the furnace was operating correctly at completion.
Greg M.
Greg M. Checked in
Performed a tune-up on the basement furnace, including inspection and cleaning of the flame sensor and removal and servicing of the igniter assembly. Verified electrical operation with a digital clamp meter, checking amperage draw and control circuit readings to confirm proper function of the unit. Reassembled all components and confirmed the furnace was operating correctly at completion.
Saint Charles, MO 63303
Performed a tune-up on one gas furnace, including inspection of the electrical and gas connections and verification of the blower and control wiring. Tested the capacitor with a calibrated clamp multimeter, measuring approximately 4.7 µF, and checked amperage and voltage draw on the electrical components to confirm they were operating within manufacturer specifications. System was left in working order.
Performed a tune-up on one gas furnace, including inspection of the electrical and gas connections and verification of the blower and control wiring. Tested the capacitor with a calibrated clamp multimeter, measuring approximately 4.7 µF, and checked amperage and voltage draw on the electrical components to confirm they were operating within manufacturer specifications. System was left in working order.
Justin W.
Justin W. Checked in
Performed a tune-up on one gas furnace, including inspection of the electrical and gas connections and verification of the blower and control wiring. Tested the capacitor with a calibrated clamp multimeter, measuring approximately 4.7 µF, and checked amperage and voltage draw on the electrical components to confirm they were operating within manufacturer specifications. System was left in working order.
Saint Charles, MO 63303
Saint Charles, MO - Performed a heating tune-up on one 1-year-old furnace, including inspection and testing of system operation. Verified thermostat communication and heat call at the Emerson digital thermostat, confirming the furnace responded properly with the heating cycle active and room temperature at 72°F against an 81°F set point. System is operating normally.
Frank H.
Frank H. Checked in
Performed a heating tune-up on one 1-year-old furnace, including inspection and testing of system operation. Verified thermostat communication and heat call at the Emerson digital thermostat, confirming the furnace responded properly with the heating cycle active and room temperature at 72°F against an 81°F set point. System is operating normally.
Saint Charles, MO 63301
Saint Charles, MO - Responded to a callback for a standby generator reporting conflicting run status and erratic mode switching. Connected to the unit via the mobile app and performed a full firmware update on the connectivity accessory (v1.11.1), controller (v1.6.2), and ECU (G22AB14901), all completed successfully. Verified the control panel is operating normally in AUTO mode with the service indicator displayed and no visible damage or faults.
David Y.
David Y. Checked in
Responded to a callback for a standby generator reporting conflicting run status and erratic mode switching. Connected to the unit via the mobile app and performed a full firmware update on the connectivity accessory (v1.11.1), controller (v1.6.2), and ECU (G22AB14901), all completed successfully. Verified the control panel is operating normally in AUTO mode with the service indicator displayed and no visible damage or faults.
Saint Charles, MO 63303
Installed a new bathroom exhaust fan in the ceiling, replacing the existing fan housing that was clogged with dust and debris. Secured the unit flush to the textured ceiling, completed the electrical connections, and tested the fan for proper operation and airflow.
Installed a new bathroom exhaust fan in the ceiling, replacing the existing fan housing that was clogged with dust and debris. Secured the unit flush to the textured ceiling, completed the electrical connections, and tested the fan for proper operation and airflow.
David Y.
David Y. Checked in
Installed a new bathroom exhaust fan in the ceiling, replacing the existing fan housing that was clogged with dust and debris. Secured the unit flush to the textured ceiling, completed the electrical connections, and tested the fan for proper operation and airflow.
Saint Charles, MO 63301
Installed a ceiling fan in the living room and a ventilation fan in the bathroom, including mounting, wiring connections to the existing circuits, and operational testing of each unit. Verified the service panel and exterior meter and service entrance equipment were intact and in good condition, with no visible damage or anomalies.
Installed a ceiling fan in the living room and a ventilation fan in the bathroom, including mounting, wiring connections to the existing circuits, and operational testing of each unit. Verified the service panel and exterior meter and service entrance equipment were intact and in good condition, with no visible damage or anomalies.
Yasin A.
Yasin A. Checked in
Installed a ceiling fan in the living room and a ventilation fan in the bathroom, including mounting, wiring connections to the existing circuits, and operational testing of each unit. Verified the service panel and exterior meter and service entrance equipment were intact and in good condition, with no visible damage or anomalies.
Saint Charles, MO 63304
Saint Charles, MO - Performed a seasonal heating tune-up on one gas furnace (under 10 years old), including inspection of the blower assembly, burners, heat exchanger, and safety controls, and verified proper ignition sequence and heating operation. Inspected the return air filter cabinet and installed a new 3M pleated air filter to restore proper airflow and system efficiency, noting light surface dust and minor rust staining on the cabinet interior.
Anthony L.
Anthony L. Checked in
Performed a seasonal heating tune-up on one gas furnace (under 10 years old), including inspection of the blower assembly, burners, heat exchanger, and safety controls, and verified proper ignition sequence and heating operation. Inspected the return air filter cabinet and installed a new 3M pleated air filter to restore proper airflow and system efficiency, noting light surface dust and minor rust staining on the cabinet interior.
Saint Charles, MO 63303
Saint Charles, MO - Responded to a no-cool call on a single residential split system reporting a frozen evaporator coil and a humming noise at the blower motor. Inspected the air handler control compartment, including the low-voltage wiring and blower relay connections, and found no visible damage, burning, or corrosion at the terminals. Diagnosis of the blower motor circuit was performed, and the unit was evaluated for the cause of the coil freeze-up and loss of airflow.
Joe V.
Joe V. Checked in
Responded to a no-cool call on a single residential split system reporting a frozen evaporator coil and a humming noise at the blower motor. Inspected the air handler control compartment, including the low-voltage wiring and blower relay connections, and found no visible damage, burning, or corrosion at the terminals. Diagnosis of the blower motor circuit was performed, and the unit was evaluated for the cause of the coil freeze-up and loss of airflow.
Saint Charles, MO 63301
Completed electrical rewire installation including installation of new duplex receptacle outlets in multiple locations throughout the property. Installed code-compliant beige duplex receptacles on ceiling and wall surfaces with proper grounding and secure mounting to existing electrical boxes.
Completed electrical rewire installation including installation of new duplex receptacle outlets in multiple locations throughout the property. Installed code-compliant beige duplex receptacles on ceiling and wall surfaces with proper grounding and secure mounting to existing electrical boxes.
David Y.
David Y. Checked in
Completed electrical rewire installation including installation of new duplex receptacle outlets in multiple locations throughout the property. Installed code-compliant beige duplex receptacles on ceiling and wall surfaces with proper grounding and secure mounting to existing electrical boxes.
Saint Charles, MO 63301
Completed annual heating maintenance and tune-up on 3-year-old Lennox furnace system. Performed comprehensive inspection of all components including burners, heat exchanger, blower assembly, and ductwork connections. System tested and confirmed operating properly with all safety controls functioning as designed, ready for winter season operation.
Completed annual heating maintenance and tune-up on 3-year-old Lennox furnace system. Performed comprehensive inspection of all components including burners, heat exchanger, blower assembly, and ductwork connections. System tested and confirmed operating properly with all safety controls functioning as designed, ready for winter season operation.
Frank H.
Frank H. Checked in
Completed annual heating maintenance and tune-up on 3-year-old Lennox furnace system. Performed comprehensive inspection of all components including burners, heat exchanger, blower assembly, and ductwork connections. System tested and confirmed operating properly with all safety controls functioning as designed, ready for winter season operation.
Saint Charles, MO 63303
Relocated electrical junction box from behind built-in stove area to adjacent cabinet location to accommodate new kitchen cabinet and stove installation. Verified proper circuit identification at main electrical panel and ensured all connections met code requirements for cooktop circuit accessibility and safety.
Relocated electrical junction box from behind built-in stove area to adjacent cabinet location to accommodate new kitchen cabinet and stove installation. Verified proper circuit identification at main electrical panel and ensured all connections met code requirements for cooktop circuit accessibility and safety.
Kyle H.
Kyle H. Checked in
Relocated electrical junction box from behind built-in stove area to adjacent cabinet location to accommodate new kitchen cabinet and stove installation. Verified proper circuit identification at main electrical panel and ensured all connections met code requirements for cooktop circuit accessibility and safety.
Saint Charles, MO 63301
Completed O10 heating tune-up on basement furnace unit. Performed comprehensive inspection of aging system showing significant wear and surface corrosion on cabinet housing. Checked blower motor assembly, drive belt tension and condition, electrical connections, and ductwork. All components operational and system running within acceptable parameters despite age-related deterioration of exterior surfaces.
Completed O10 heating tune-up on basement furnace unit. Performed comprehensive inspection of aging system showing significant wear and surface corrosion on cabinet housing. Checked blower motor assembly, drive belt tension and condition, electrical connections, and ductwork. All components operational and system running within acceptable parameters despite age-related deterioration of exterior surfaces.
Roger H.
Roger H. Checked in
Completed O10 heating tune-up on basement furnace unit. Performed comprehensive inspection of aging system showing significant wear and surface corrosion on cabinet housing. Checked blower motor assembly, drive belt tension and condition, electrical connections, and ductwork. All components operational and system running within acceptable parameters despite age-related deterioration of exterior surfaces.
Saint Charles, MO 63301
Completed comprehensive heating tune-up on 3-year-old Lennox furnace located in basement. Performed full system inspection including temperature differential testing, verified proper airflow through heat exchanger, inspected all electrical connections and wiring, checked gas pressure and burner operation, and examined venting system integrity. All components found operating within manufacturer specifications with no deficiencies noted.
Completed comprehensive heating tune-up on 3-year-old Lennox furnace located in basement. Performed full system inspection including temperature differential testing, verified proper airflow through heat exchanger, inspected all electrical connections and wiring, checked gas pressure and burner operation, and examined venting system integrity. All components found operating within manufacturer specifications with no deficiencies noted.
Mitchell L.
Mitchell L. Checked in
Completed comprehensive heating tune-up on 3-year-old Lennox furnace located in basement. Performed full system inspection including temperature differential testing, verified proper airflow through heat exchanger, inspected all electrical connections and wiring, checked gas pressure and burner operation, and examined venting system integrity. All components found operating within manufacturer specifications with no deficiencies noted.
Saint Charles, MO 63303

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See What Your Neighbors Are Saying

Top notch install quality. While my ac wasn’t that old, I opted for a higher efficiency heat pump system and replace my worn-out older furnace! The difference in my home is night and day difference, can’t wait to see what the bills do.

Sean K.

Sean K.

Great customer service! Called for an emergency with my furnace after hours (in the middle of winter), a mishap happened with their system. The manager Joe called me immediately in the morning, discounted my service and got Jack out in an hour. Diagnosed and fixed same…

Ebony K.

Ebony K.

I have my furnace and air conditioning system on a maintenance agreement with Classic Aire Care to be checked twice a year. They have been doing this since the system was installed eight years ago. They do excellent work and technicians are quality people. I would…

Gerald B.

Gerald B.

We enjoy the promptness and professionalism of every person we have met, encountered or had enter our home. They are very clean, neat and down-to-business kind of employees. Couldn't ask for more.

Cindy K.

Cindy K.

The Professionalism of this company as well our service technician Greg was more than just five-star rating. He took the time explained everything that he did and now my unit is running at tiptop shape.

Charles P.

Charles P.

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100% Satisfaction Guaranteed

Over 100 Vans on The Road, Ready to Offer Same-Day Service

Over 3,000 5-Star Reviews

Free Estimates

Highly Trained Techs With Over 35 Years Of Experience

Commitment to Community

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