Atco Heating - Saint Louis's Expert HVAC Services

Signs of an improperly sized system include rooms that are too hot or too cold, short-cycling (frequent on/off cycles), excessively high energy bills, and difficulty maintaining a set temperature. Our technicians perform a detailed load calculation, considering your home's square footage, insulation, window placement, and the local Saint Louis climate to determine the perfect system size for efficiency and comfort.

Common thermostat problems we see in Saint Louis homes include unresponsive screens, incorrect temperature readings, a system that won't turn on or off, and Wi-Fi connectivity loss in smart models. We troubleshoot wiring issues, calibrate sensors, replace old batteries, and can recommend and install a reliable replacement—from basic models to modern programmable or smart thermostats that improve control and savings.

Our comprehensive diagnostic service is the first step to fixing any comfort issue. We thoroughly inspect your entire system, checking airflow, refrigerant levels, electrical components, ductwork for leaks, and the thermostat. This allows us to pinpoint the root cause—whether it's a sizing issue, a faulty component, or a simple calibration problem—and provide you with a clear, honest repair plan and estimate.