Air Conditioning Maintenance & Service in St. Louis, MO
Without your central air conditioner, summers in the St. Louis area would be uncomfortable, if not unbearable, especially as the temperatures approach the triple digits. The key to keeping your central air conditioner system cooling properly, without costing a fortune, is preventative maintenance. With a professional inspection once or twice a year, along with some basic HVAC maintenance, you can keep your system running efficiently and prolong its life.
At Classic Aire Care, our team of HVAC professionals can make sure that your system receives the routine maintenance it requires, according to the manufacturer’s specifications. We provide installation, replacement, repair, and maintenance services for nearly any type of HVAC system, and we serve the entire St. Louis area.
Contact us online or call 314-352-1111 to learn more about our air conditioning maintenance services!
AC Unit Maintenance Procedures for St. Louis Area Homes
At Classic Aire Care, we often get asked, “how often should you have your air conditioner serviced?” We recommend having your central air conditioning system professionally inspected and maintained twice a year, ideally at the beginning and end of each cooling season. The maintenance steps will vary by model and manufacturer, but they typically include:
- Changing or cleaning the air filter
- Cleaning the supply plenum and checking for loose duct connections
- Lubricating blower motor bearings and pulleys
- Checking for refrigerant leaks and verifying proper freon charge
- Inspecting the condenser unit for debris and corrosion
- Cleaning the condenser and evaporator coil
- Cleaning the condensate drain and drip tray
- Inspecting and cleaning the electrical connections
- Checking the safety systems, like breakers and pressure switches
- Verifying that the AC unit and thermostat operate properly at all settings
Between maintenance visits, you can help keep your central air conditioner running properly by changing the air filter as needed, cleaning the condensate drain occasionally, and keeping the area around the condenser unit free of debris.
At Classic Aire Care, our planned maintenance agreements can make sure your AC unit stays in prime condition while saving you money and time. We service and maintain all types of air conditioning and cooling systems, including ductless AC systems and heat pumps.
Contact us to learn more!
The Importance & Advantages of HVAC Maintenance for St. Louis Homeowners
Without preventative maintenance, your air conditioner will have to work harder to keep you comfortable as it struggles to remove heat through dirty coils and move air through clogged filters. That usually means less comfort in your home and higher energy costs. With regular AC maintenance, though, you can enjoy an array of benefits, including:
- Reduced cooling costs: With a clean evaporator and condenser coil, proper refrigerant levels, and all moving parts lubricated, your central air conditioner can cool more efficiently, reducing energy costs by up to 10 percent.
- Improved comfort: With the system running properly, it can cool and dehumidify your home more efficiently, improving your comfort.
- Lower repair costs: With regular inspections, problems can be caught early, reducing repair costs and preventing major problems that shorten the system’s lifespan.
To learn more about the benefits of proper HVAC maintenance, contact us today!
Classic Aire Care is the #1 Choice for AC Maintenance in St. Louis and the Surrounding Areas
At Classic Aire Care, we can handle all your HVAC needs. In fact, we’ve been St. Louis homeowner’s top choice for heating and cooling services since 1926!
For a free, no-obligation quote for AC maintenance costs or to schedule any HVAC maintenance or service, just contact us at 314-352-1111 today!
Local Reviews
for St. Louis, MO
Our Reviews by City

Great service
Ronnie - St. Louis, MO
John is very well qualified and conscientious in his work. Always polite and never leaves a mess.





Excellent service
Suzanne - St. Louis, MO
John Murphy is very capable and conscientious. He works quickly and effectively on our HVAC equipment. We have total trust and confidence in John.





John did a great job. He spent a lot of time cleaning our dirty boiler. We will be calling again with any other service
Sue - St. Louis, MO





Great Service
Gary - St. Louis, MO





Don't Ever Take John Murphy Away
William - St. Louis, MO





He was very nice and very through. Thank you for such good service
Gail - St. Louis, MO





replaced WiFi thermostat
William - St. Louis, MO
John replaced the upstairs WiFi thermostat got it working within an hour. He was at our house in just over an hour after the call. Can't Thank Classic or John enough for that kind of service.





very accomodating and liked our dogs!
Valerie - St. Louis, MO





Thorough preventative maintenance
Ed - St. Louis, MO
Cleaned furnace and checked system function. Drained surge tank for improved pressure control.





Great service, super nice young man
Viviane - St. Louis, MO
Roger serviced both furnaces. He changed many batteries to help me. I was extremely satisfied with his work. He was not rushed and took time to answer my questions.




Excellent service
Maury - St. Louis, MO
Classic Aire Care offers excellent service. Our technician was knowledgeable, helpful, and efficient.




Good job
Trudy - St. Louis, MO




Professional Service
Harvey - St. Louis, MO
Mr. Murphy was professional, knowledgeable and efficient. I was very pleased as usual. I wish all service people were as good as he.




Very knowledgeable technician
Andrea - St. Louis, MO
John thoroughly checked out my furnace and all the additional items connected to it. He was able to answer all the questions I asked him. Great service. Thank you




Great service...very professional.
Bob - St. Louis, MO




Always reliable
Killinyaa - St. Louis, MO




Excellent professional service
Eleanor - St. Louis, MO
I am happy to recommend Classic Aire to anyone who is looking for. technicians who are thorough professional employees who truly take good care of their customers. They maintain your equipment to every detail and treat each client as he would want to be treated. Thank you for being there for me. Ellie Preston




We had two areas serviced yesterday---furnance and plumbing. Both reps were helpful and thorough.
Gary - St. Louis, MO




Great service fast
Pam - St. Louis, MO




Review for John Murphy
Mitch - St. Louis, MO
John is fantastic. Explains everything he does and is exceptionally careful in his work.





John M.
I found blower motor having trouble starting. Found run capacitor very weak: 46% low, causing low starting torque. Also, Blower motor bearings have play. Worn. Customer declined this repair. Also, the furnace in need of cleaning. Cleaned & checked gas furnace per new maintenance plan. Inspected heat exchanger & flue venting. cleaned burners & flame sensor. Checked voltage & amp draw of motors. Checked filter. Replaced weak capacitor. Set speed and test. Blower: 4.0A . Inducer: 0.89A . Temperature rise: 56 . Supply: 124 . Return: 68 .

John M.
Complaint: customer has had to turn the heat up higher than usual. Also, seems to blow air thats not very hot. Found control board logged fault codes 2 to 3: pressure switch failed to close. Cleaned out pressure port on inducer. Thermostat reads high +1. Calibrated thermostat. Set manifold pressures. Set lower speeds. Covered filter opening. Turned up humidifier to 40. Tested operation.

John M.
I replaced broken ignition electrode. Set spark gap to 1/4 inch. Tested light off. Boiler lighting smoothly. Checked combustion blower: .3 A. Supply: 104. Return: 80.

John M.
Cleaned & checked gas furnace. Inspected heat exchanger & flue venting. cleaned burners & flame sensor. Checked voltage & amp draw of motors. Test capacitor. Replaced MERV16 air cleaner media. Clean and check humidifier, replace pad, checked water flow and drain. Blower: 1.7/2.3A . Inducer: 0.07/0.24A . Gas pressure: 1.7/ inches water column. Temperature rise: 50 . Supply: 122 . Return: 72 .

John M.
I replaced three wire safety pilot for Bryant boiler. Installed new pilot tubing and fittings. Safety switch closed after 53 seconds of lighting. Boiler operated for about 15 minutes and new pilot assembly failed!! Had new pilot assembly picked up delivered. Replaced again and tested operation. Safety switched closed after 20 seconds. Cycled pilot on and off. Working OK.

John M.
I turned humidifier back on and checked for leaks. Not leaking at this time, but found where water had been trailing out of frame. I cleaned distributor tray and scale separator frame. Replaced water panel. Tested operation. I increased gas pressure for stage one. Set cycle rate. Calibrated thermostat. Was+5.

John M.
Cleaned & checked condensing gas furnace. Inspected heat exchanger & flue venting. cleaned burners & flame sensor. Checked voltage & amp draw of motors. Test capacitor. Replaced air filter. Replaced thermostat batteries. Blower: 2.6/3.4A . Inducer: 0.25/0.47A.

John M.
Picked up keys from 707 N 2nd St. Unit C: Goodman 2123: I found electric furnace with bad transformer. I tested controls and wiring for shorts and found none. Also found evaporator coil very dirty. System running without a filter. I tested for shorted and grounded controls and wiring. Found none. I replaced transformer with fuse. Check control circuit amps for cooling and heating modes: 0.45 A. I clean evaporator. Replaced air filter. Unit D: checked to see if heat is operational. Found heat was working and set at 58. Dropped off keys at 4564 Chouteau.

John M.
3600 Hereford Street, 1N: Installed new heat kit package. Installed new fan control board. Tested operation. Amp draw: 34.7. Voltage: 242. Supply air: 109. Return air: 73. I set up a thermostat for “non-heat pump“ to defeat time delay. Balance due: $515.

John M.
Cleaned & checked gas furnace. Inspected heat exchanger & flue venting. cleaned burners & flame sensor. Checked voltage & amp draw of motors. Test capacitor. Replaced air filter. Blower: 3.8/4.7A . Inducer:0.09/0.21A . Gas pressure: 1.9/3.6 inches water column. Found basement pressure negative (-.006 inches water column) due to leaks in return-air ducting. Suggestions: return ducting air leaks can be sealed with caulk and tape. Keep basement door open for make-up air to keep pressures balanced. Set fan to “auto“ position when in cooling mode for proper humidity control. Recommend whole house humidifier installation: $716. 15% PMA discount applies.

John M.
I installed a base pan heater for mini split system to keep ice from building up at base of unit. Tested system operation. AH 9052: supply: 106. Return: 74. AH 9085: supply: 106. Return: 76. Suggestions: Must lift remote from holder on the wall to use. Listen for beep at unit to confirm changes made at remote controls.

John M.
Found burnt wire, dirty air filter, and weak blower capacitor. Replaced burnt wire. Replaced air filter. Replaced blower run capacitor. Clean and check electric furnace per maintenance plan purchase. Tested heating elements. Tested sequencers. Supply: 106. Return:65. Amps: 42. Checked temperature rise. 41.

John M.
Cleaned & checked condensing gas furnace. Inspected heat exchanger & flue venting. cleaned burners & flame sensor. Checked voltage & amp draw of motors. Test capacitor. Replaced air cleaner media. Clean and check humidifier, replace pad, checked water flow and drain. Blower: 2.5/3.4A . Inducer: 0.26/0.44A . Gas pressure: 1.9/3.6 inches water column. Flame: 12uA. Set humidifier blower speed. Calibrated humidity reading.

John M.
found leak water at condensate pump. Found discharge fitting chewed up by a mouse. Need to replace discharge check valve Fitting. Follow up: need to order three eights discharge check valve for condensate pump.

John M.
Found condensate pump float safety tripped. Pump not able to pump water through frozen line that goes to the outside. Humidifier was installed last year and connected to this existing condensate pump system. Condensate pump system works for warm weather only. No charges today. Suggestions: run new condensate discharge line over to drain stack where washing machine drains.

John M.
Customer complained of a gas smell from second floor furnace closet. I checked for gas leaks in furnace closet and found small gas leak at black iron union. I replaced black iron union. I check the furnace operation. Checked condensate traps. OK.

John M.
PTAC unit for east room. 2004 Amana. I plugged in unit. Unit came on and started heating while switch was in the off position! After taking cover off unit started operating properly. Needs new control board kit. Also, blower/fan is rubbing. Unit quit working again before I left. I left unit unplugged. Suggestions: replace unit: $2800. Troy to call customer when new unit arrives tomorrow.

John M.
I found ignition control locked out on code 6: internal failure. Control would not reset. I picked up new control board and replaced. Tested boiler operation and found circulator pump not pumping to full capacity. Pumping at maybe 10% capacity! Purged water coil of air handler to ensure no air is trapped. Boiler is cycling on limit control. I left gas cock partly closed to reduce amount of water boiling off. Suggestions: Need new circulator pump. See pictures. boiler is 34 years old. Consider replacing. Recommend shutting off water supply valve and monitor system pressure to ensure no water leaks in heating field of floor.