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.Â
Furnace Repair & Installation Services

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:
- Furnace installation, repair, or maintenance
- Boiler installation, repair, or replacement
- Heat pump installation, repair, or replacement
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.
Air Conditioning Repair & Replacement Services

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:
- Central AC unit
- Heat pump
- Ductless mini-split system
- Commercial AC unit
To schedule air conditioning services in St. Charles, MO, reach out to Classic Aire Care online or call (314) 329-1943.
Plumbing Repair Services

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 July 2026.
The most recent job was on July 22, 2026.
Classic Aire Care has completed 530 jobs in Saint Charles, MO in the last 12 months.
Job Locations and Reviews
Responded to no cooling complaint on 7-year-old outdoor unit. Upon inspection, found failed dual run capacitor with visible signs of deterioration. Replaced defective capacitor with manufacturer-approved replacement, restored power, and verified proper system operation with all electrical connections secure. Unit cooling normally at time of departure.
Responded to service call for non-functioning outlets in two bathrooms and exterior locations. Upon arrival, verified that no circuit breakers were tripped in the main electrical panel. Conducted comprehensive inspection of the electrical distribution system, including examination of the main breaker panel and exterior meter assembly. Inspected all circuit breakers for proper operation and verified panel integrity. Documented existing electrical infrastructure conditions, including the main service panel mounted in utility area and exterior meter installation showing signs of weathering and corrosion on enclosure. Identified potential issues requiring further investigation to isolate the cause of outlet failures in affected areas.
Responded to no cooling complaint on 16-year-old basement unit. Upon inspection, discovered severe corrosion and rust throughout the evaporator coil assembly, with heavy deterioration on copper U-bends and heat exchanger tubes. The extensive corrosion has compromised the coil integrity, resulting in loss of cooling capacity. Recommended complete evaporator coil replacement due to the advanced state of deterioration and provided repair options to restore system functionality.
Replaced failed evaporator coil in air handler unit and installed two 3-inch flex couplings to complete the repair. Removed and disposed of old coil assembly, pressure tested system, and verified proper operation of heating and cooling functions upon completion.
Responded to no-cool complaint with evaporator coil freeze-up on two-year-old residential air conditioning system affecting entire home. Upon inspection, found outdoor condenser coil heavily contaminated with dirt and debris accumulation restricting airflow, contributing to improper system operation and refrigerant pressure imbalance. Performed visual inspection of control board and low-voltage wiring connections, verified all terminations secure at terminal block. Documented condenser coil condition and control board configuration with photos for warranty consideration given unit age. Advised customer of findings and recommended thorough coil cleaning, refrigerant charge verification, and airflow diagnostics to resolve freezing condition and restore proper cooling operation.
Responded to service call for error code displaying on Trane thermostat at front entrance foyer unit. Upon arrival, connected refrigerant manifold and micron gauge to assess system pressures and temperatures, which revealed abnormal readings indicating potential refrigerant or airflow issues. Inspection of outdoor unit discovered significant rust and corrosion on rigid ductwork connections, compromised condensate drainage system with standing water and debris accumulation in drip pan, and deteriorated flexible duct insulation with visible environmental contamination. Documented equipment condition with diagnostic measurements and photographic evidence for repair recommendations.
Responded to service call for AC leak requiring location identification. Upon arrival, performed thorough inspection of HVAC system and surrounding areas. Located source of water leak at air handler unit in mechanical space. Found significant water accumulation on floor surfaces and extensive moisture damage to surrounding flooring, walls, and subflooring materials. Confirmed drain line was not source of issue as previously verified by municipal sewer inspection. Inspected humidifier operation and determined it was not contributing factor to ongoing leak. Traced leak to condensate issue at air handler unit. Documented extensive water damage including deteriorated flooring tiles, wall discoloration, and moisture infiltration in crawlspace area beneath unit. Photographed conditions showing standing water, damaged subflooring, compromised wall surfaces, and affected ductwork area. Identified primary leak source and provided recommendations for necessary repairs to resolve water intrusion
Responded to callback on new installation regarding intermittent loud compressor startup. Performed electrical diagnostics and amperage measurements at the indoor air handler unit to verify proper system operation and determine if hard start kit installation would resolve the issue. Evaluated compressor performance and electrical characteristics to assess whether component addition or unit replacement would be necessary.
Responded to no-cool complaint on Lennox EL18XPV-024-230A01 unit with HFC-410A refrigerant. Upon arrival, found system running but unable to maintain setpoint temperature. Performed electrical diagnostics using clamp meter, recording amperage draw of 333.1 amps, which significantly exceeds normal operating parameters for this 2-ton unit. Advised customer to turn system off immediately to prevent compressor damage. Unit requires further diagnosis to determine cause of excessive amperage draw, likely indicating compressor failure or electrical fault.
Completed electrical fixture installation in basement area per approved estimate. Installed new electrical wiring through floor joists using appropriate cable routing methods with securing clips and junction boxes. Mounted electrical switch assembly with indicator lights in metallic junction box on foundation wall, utilizing flexible conduit for proper wire protection. All work performed to code specifications with proper grounding and secure mounting hardware.
Responded to report of kitchen lights flickering when air conditioning unit activates. Inspected main electrical panel and identified loose neutral connections causing voltage fluctuations during high-load startup conditions. Tightened all neutral bus bar connections, verified proper torque specifications on main breaker terminals, and confirmed all branch circuit connections were secure. Tested system operation through multiple A/C cycling events to verify flickering issue was resolved and electrical system remained stable under load.
Responded to no cooling complaint on 17-year-old Lennox system. Upon arrival, found outdoor condenser coil heavily obstructed with dirt, debris, and organic matter, severely restricting airflow through fins. Condenser coil cleaning was required to restore proper system operation and airflow. Unit located at ground level in mulched area with significant leaf litter and environmental contamination contributing to restricted airflow condition.
Responded to emergency water leak in basement caused by disconnected A/C condensate drain hose. Upon arrival, found the drain line had become detached from the floor drain, resulting in active water discharge onto the basement floor with visible pooling and moisture damage to the concrete surface. Reconnected the condensate drain hose to the proper drain outlet and secured the connection to prevent future disconnection. Verified proper drainage flow and confirmed the system was operating correctly with no further leakage.
Replaced evaporator coil in Carrier air handler unit (serial number 2616a84870) located in basement installation. Installed new filter drier as part of the coil replacement procedure. System tested and confirmed operational for cooling mode following completion of warranty repair work.
Responded to no cooling complaint on 3-year-old residential air conditioning system. Upon inspection, diagnosed failed run capacitor with visible degradation and incorrect microfarad reading of 7μF. Replaced defective capacitor with proper OEM specification unit, restored all electrical connections, and verified system operation. Measured supply air temperature at 88.5°F prior to repair; confirmed adequate cooling performance and proper amperage draw after capacitor replacement.
Completed electrical estimate for Generac generator installation. Evaluated existing electrical panel configuration, including main breaker assembly and circuit breaker layout with numbered positions across two columns. Assessed current electrical infrastructure and plumbing manifold system in utility area to determine optimal integration points for generator connection. Documented site conditions and captured detailed photographs of electrical panel and mechanical systems for comprehensive proposal development.
Responded to no cooling complaint on 10+ year old Carrier AC unit located next to garage. Customer reported refrigerant was added one month prior but system still not functioning with indoor evaporator error code displayed. Upon arrival, found unit powered off with fan running. Performed diagnostic evaluation using digital manifold gauge to measure system pressures and temperatures, with readings indicating 58.8°F and 51.8°F temperatures and 29.15" vacuum pressure. Troubleshot evaporator coil operation and refrigerant circuit to identify root cause of cooling failure and error code condition.
Responded to no cooling call on recently installed Lennox system affecting entire home. Upon arrival, performed diagnostic testing using digital multimeter and non-contact voltage tester at equipment junction box and electrical panel. Verified thermostat functionality and temperature settings at wall-mounted control unit reading 72°F. Identified and resolved issue preventing system operation. Unit restored to normal cooling function with proper airflow throughout home. All electrical connections verified secure and system tested through complete cooling cycle to confirm proper operation.
Responded to service call for cooling system not maintaining set temperature on residential unit less than 10 years old located in side yard. Upon arrival, observed outdoor condensing unit with heavy dirt and debris accumulation on exterior panels and surrounding area, indicating extended period without maintenance. Performed diagnostic temperature measurements on unit components using digital thermometer. Found unit operating but compromised by restricted airflow due to excessive dirt buildup on coils and cabinet surfaces. Documented equipment condition with photos showing contaminated exterior surfaces and diagnostic readings. Unit was previously advised to be shut off prior to service visit. Recommended thorough coil cleaning and system evaluation to restore proper cooling capacity and airflow efficiency.
Installed new evaporator coil and thermostatic expansion valve (TXV) on HVAC unit serial number 2208467529. Previous TXV installation from April was incorrect and required replacement. Both components were successfully installed and system restored to proper operation.