There are 79,329 people living in O’Fallon, MO and 28,234 households, making it the largest municipality in St. Charles County and the seventh largest in the state of Missouri! Classic Aire Care might not be able to clean and check all 28,234 AC’s and furnaces, but we would love the opportunity to take care of yours! Whether you need to complete your annual maintenance or are looking for a quick repair, Classic Aire Care is a phone call away. If you are in a brand new home or even one of O’Fallon’s charming historical homes, Classic Aire Care is here for you with 24 hour emergency service. Head on over to Fort Zumwalt Park! We’ll call you when we’re on our way.
Classic Aire Care has been providing heating and cooling services in the O’Fallon area for decades. Whether your furnace needs a tune up or your air conditioner needs replacing, Classic Aire Care has the staff to get the job done. Our highly trained, licensed service technicians and installers get the job right the first time. If you live in the O’Fallon area and you need a furnace or air conditioner repair, maintenance or install call us at 314-300-6755.
for O'Fallon, MO
Our Reviews by City
Friendly and great service!!!
Kim - O'Fallon, MO
They were on time, quickly found the problem and are ordering parts ASAP!! Can’t get better than that!! Thank you!!
Glenn - O'Fallon, MO
Fast, Knowledgeable and Thorough
Glenn - O'Fallon, MO
Our service technician was John. He responded quickly to our call and went to work to find the problem that had disabled our relatively new (10 month old) heating system. He went beyond finding the immediate fault to discover the underlying problem and fix it. He kept us informed throughout the process. He was courteous and professional throughout.
Outstandig Professional HVAC Service
Ronald - O'Fallon, MO
JOE exhibited excellent work approach and experienced personal skills. I will request Joe, when available, for my HVAC needs. He reflects competency well suited to advancing the Classic Aire Care reputation. Thanks for continuing great service. Ron
Great service - prompt response - good explanations
Jon - O'Fallon, MO
Fast and efficient
Steve - O'Fallon, MO
Very friendly and knowledgeable
Fast and efficient
Steve - O'Fallon, MO
Really nice, honest guy!
MJ - O'Fallon, MO
Jeff is a great technician! I do wish that Classic Aire Care would offer weekend hours, though.
Tom - O'Fallon, MO
Was very helpful
Very nice, friendly, great service.
Terry - O'Fallon, MO
Joann - O'Fallon, MO
HVAC system PMA
Melvyn - O'Fallon, MO
I recommend the PMA - protect your investment.
Eric - O'Fallon, MO
On time, efficient friendly service and reasonable price
Bill - O'Fallon, MO
Came out day after I called.
Barb - O'Fallon, MO
Efficient, courteous, friendly. Made sure I understood thermostat
Jorie - O'Fallon, MO
Classic Aire Care was the only AC company that could come out the following day when I called to have an inspection done. Other companies gave us a more expensive quote and could not come out until 3 or 4 days after we called. My fiancé and I were very pleased with their prompt service and quality!
Very friendly and informative!
Jeff - O'Fallon, MO
Corey was great! I will definitely recommend your company to others, especially if all your customers are treated as I was. Thank you Corey!
Robyn - O'Fallon, MO
He was friendly and knowledgeable.
Stiles - O'Fallon, MO
Always great classic aire is the best
Very professional, prompt, and the price was right.
Ron - O'Fallon, MO
Cory did a great job and I would recommend him to who ever needs the air conditioner service. However, I feel the office help might be more assuring. Diane needs to understand a less than friendly response can lead a customer to go elsewhere. A retired teacher of 30 years and 3 college degrees I feel would have been better at answering a phone in a more positive and productive tone. Corey was excellent remember.
Leak checked system. Found evaporator coil leaking. Needs new coil. Cleaned and checked air conditioner. Checked drain. Checked voltage and amperage draw of motors. Tested capacitors. Checked Freon level. Cleaned condenser coil. Checked filter. Compressor: 13.2A . Condenser fan: 1.2A .adj Blower: 5.2aa, 1575 . ambient: 93 . liquid line: 104, dirty. suction line: 56 . metering device: TXV . Work suggested: replace evaporator coil under parts warranty: $594. Credit $254 toward repair for Freon cost.
Turned on system and tested. I found system about 20% low on Freon. I leak checked and found a distributor tube of evaporator coil leaking! I pumped down system. Repaired Freon leak. Evacuate low side of system. Topped off Freon level. Subcooling: 16. Superheat: 15. Credited customer for capacitor replacement from June 12 as warrantee repair: parts only warranty.
Found both first floor damper not driving closed. Tested AC. Suction line: 42. Liquid line: 100. Ambient: 89. Work suggested: replace both first floor dampers. Need to check on cost and availability. Also check on possible warranty.
Cleaned and checked 2 air conditioners. Checked drains. Checked voltage and amperage draw of motors. Tested capacitors. Checked Freon levels. Cleaned condenser coils. Checked filters. Second floor system: Replaced thermostat batteries. Compressor:11.3A .Condenser fan: 0.59A . Blower: 4.5A .ambient:80 .liquid line: 95 .suction line: 44 .metering device: piston . Suction pressure: 70(41) . Return air: 72.5 .supply air: 54.5 .wet bulb: 61. First floor system: Compressor: 10.6A. Condenser fan: 0.62A . Blower: 3.9A .ambient:80 .liquid line: 105 .suction line: 40.metering device: piston . Suction pressure:69(40) . Return air: 72 .supply air: 51.5 .wet bulb: .
Evaporator coil leak found—returning to replace under parts warranty
Cleaned and checked air conditioner. Checked drain. Checked voltage and amperage draw of motors. Tested capacitors. Checked Freon level. Cleaned condenser coil. Checked filter. Compressor:15.8A .Condenser fan: 0.82A . Blower: MH .ambient: 82 .liquid line: 94.suction line: 46 .metering device: piston . Suction pressure: 66(38) . Return air: 72.5 .supply air: 54 .wet bulb: 61 . Work suggested: Replace air filter.
No AC—bad contactor—new maintenance plan
Spring maintenance on AC system!
Spring maintenance! Replaced filters
Planned maintenance visit! AC maintenance. Working great
Work Done: started up two new air-conditioning systems. I checked airflow. I checked refrigerant charge. Added 1 pound of Freon to each unit for proper charge per specifications. Ambient: 86. First floor system: superheat: 16. Sub cooling: five. Second floor system: superheat: 17. Sub cooling: six.
Super tune up for heating and cooling! Replaced faulty thermostat
Flame is dropping out. I tested flame sensor current: OK. Found pressure safety switch contacts making very poor connection. Tested pressure at pressure port tubing. I picked up new part. Replaced pressure safety switch under parts only warranty.
Found codes 271, 227. Found pressure safety switches not closing every time.
Performed furnace maintenance, installed humidifier, replaced weak capacitor and signed up for a maintenance plan!
Serviced two heating system
Completed clean & checked gas furnace. Inspected heat exchanger & flue venting. Replaced rusted out furnace vent piping from furnace to swivel Tee. cleaned burners & flame sensor. Checked voltage & amp draw of motors. Test capacitor. Found run capacitor weak: 23%low. Replaced capacitor and tested amp draw. Bottom of furnace very rusty. I found air conditioner condensate drain clogged! I cleaned out clogged pan. Replaced air filter. Furnace did not come back on. I found Service switch with bad connection. Replaced service switch for furnace. Found basement pressure very negative (-.025 inches water column) due to leaks in return-air ducting. This is causing downdraft of flu, fluegas spillage, and flue piping to rust out!!
Serviced furnace and humidifier
I discovered white wire connected to DFTS terminal! I connected white wire to “W1DEF” Terminal of equipment interface board. I reset the control circuit breaker in the furnace. Tested operation. Working OK. I informed customer that the water to the humidifier was turned off. Customer turn water valve on.
Emergency service. Dual fuel system less than one-year-old. I found circuit breaker in furnace for control circuit tripped. I disconnected yellow wire (That leads to outdoor unit) from “Y1” terminal of interface board. Tested yellow wire and found shorted to ground. when I checked wiring at outdoor unit short had disappeared! Outdoor circuit board tested OK. I abandoned the yellow wire and connected the spare green wire instead. I tested system operation. Working OK.