Trusted heat pump repair for St. Louis properties. Same-day service available, transparent pricing, and a workmanship guarantee.
KIC Refrigeration provides professional heat pump repair in St. Louis, MO, diagnosing compressor failures, refrigerant leaks, reversing valve malfunctions, and defrost cycle errors across all major equipment brands. Our NATE-certified technicians restore rated HSPF and SEER performance through systematic, component-level troubleshooting that gets your dual-mode system back to full capacity.
Whether you own a single-family home or manage a commercial property in St. Louis, professional heat pump repair is essential for maintaining safe, efficient indoor climate control. KIC Refrigeration has completed hundreds of heat pump repair projects across Missouri, and our St. Louis customers benefit from that depth of experience, our fully stocked service vehicles, and our ability to respond the same day for urgent situations.
We understand that heat pump repair can feel like a major decision. That is why KIC Refrigeration makes the process simple for St. Louis property owners — free evaluations, transparent pricing, flexible scheduling, and a dedicated point of contact from diagnosis through completion. Your satisfaction is guaranteed.
From initial contact to final verification — here is how we handle heat pump repair.
KIC Refrigeration begins every heat pump repair in St. Louis, MO with a dual-mode performance test. We measure supply air temperatures in heat and cool, verify the reversing valve energizes and de-energizes properly, and test the defrost control board to confirm it initiates defrost cycles at the correct intervals.
At your St. Louis property, our technician connects digital manifold gauges and measures suction pressure, discharge pressure, liquid line temperature, and suction line temperature. We calculate superheat and subcooling to determine if the charge is correct or if there is a restriction in the metering device or a refrigerant leak.
We replace the failed component — compressor, reversing valve, defrost board, contactor, capacitor, or metering device — using OEM or equivalent parts rated for your system tonnage and refrigerant type.
KIC Refrigeration does not consider your St. Louis, MO heat pump repair complete until every performance metric checks out. We verify pressures, temperatures, amperage draws, defrost timing, reversing valve switching, and thermostat communication before signing off on the work.
Get answers to the heat pump repair questions our customers ask most often.
Heat pump repair in St. Louis typically ranges from $150 to $600 for common component failures like run capacitors, contactors, defrost timers, and condenser fan motors. Reversing valve replacement is a more involved job that runs $800 to $2,000 including refrigerant recovery and recharge. Compressor replacement costs $1,500 to $3,000 depending on the unit tonnage, refrigerant type — whether R-410A or older R-22 — and whether a hard-start kit is needed. KIC Refrigeration provides a detailed written estimate with parts and labor itemized before any work begins at your St. Louis property, so you know exactly what the repair will cost.
A heat pump blowing cold air in heating mode is most commonly caused by a failed reversing valve solenoid, which gets stuck and prevents the system from switching from cooling to heating. Other causes include low refrigerant charge that reduces the heat output at the condenser coil, a stuck or failed defrost control board that keeps the outdoor unit in defrost mode too long, or a thermostat that has lost communication with the control board. KIC Refrigeration tests the reversing valve by measuring the temperature difference across it, checks refrigerant pressures with manifold gauges, and verifies the defrost sequence to isolate the exact cause at your St. Louis property.
Yes. KIC Refrigeration provides 24/7 emergency heat pump repair in St. Louis and surrounding Missouri communities every day of the year including holidays. A failed heat pump in freezing weather is a genuine emergency — indoor temperatures can drop below 40 degrees within hours, putting water pipes at risk of freezing and bursting. Our emergency technicians are dispatched with fully stocked vehicles carrying capacitors, contactors, defrost boards, fan motors, and refrigerant so the most common failures can be repaired on the first visit. Call our St. Louis emergency line any time and we will have a technician on the way to your property as quickly as possible.
KIC Refrigeration repairs every major heat pump brand installed in St. Louis homes and businesses — Carrier, Trane, Lennox, Rheem, Goodman, Daikin, York, Bryant, Amana, Mitsubishi, Fujitsu, and LG. Our NATE-certified technicians are trained on both conventional ducted split systems and ductless mini-split heat pumps across all tonnage ratings from 1.5 to 5 tons. We work with every common refrigerant including R-410A, R-22, R-32, and R-454B. Whether your system is a 30-year-old R-22 unit or a brand-new variable-speed inverter model, KIC Refrigeration has the diagnostic tools, replacement parts access, and technical knowledge to repair it correctly at your St. Louis property.
Hear from property owners who chose us for their heating and cooling needs.
"KIC Refrigeration handled our emergency furnace repair during a cold snap. They prioritized us because we have elderly parents in the home. Truly caring people."
"AC tune-up before summer. Technician was early, finished in about forty-five minutes, and gave me a clean bill of health on the system. Easy process."
"KIC Refrigeration has serviced our commercial HVAC system for two years now. Always professional, always on time. Would not trust anyone else."