Mmi Air Conditioning & Heating | HVAC Services in Fenton, MO 63026

Absolutely. A non-working air handler fan is a frequent call we get, especially during our humid Missouri summers. Our technicians are experts at diagnosing the root cause, whether it's a faulty capacitor, motor, or electrical issue. We carry common parts on our trucks for many brands to get your system cooling your Fenton home again as quickly as possible.

An improperly sized system is a major source of discomfort and high energy bills here. Telltale signs include frequent short cycling (turning on and off rapidly), inability to maintain a consistent temperature, excessive humidity indoors, and unusually high utility costs. MMI performs detailed Manual J load calculations to determine the perfect size for your home's layout, insulation, and windows, ensuring efficient and effective heating and cooling.

Our comprehensive maintenance service is designed to catch small issues before they become big, expensive problems. We thoroughly clean and inspect your system's key components, check refrigerant levels, test electrical connections, lubricate moving parts, and ensure safe operation. This proactive care improves efficiency, extends the life of your equipment, and gives you peace of mind through Fenton's extreme seasons.