St. Louis sits at the confluence of the Mississippi and Missouri Rivers, which creates high humidity levels year-round. Summer humidity regularly hits 80 percent, and winter humidity inside heated homes drops to 20 percent. This constant moisture cycling rusts blower motors, corrodes electrical connections, and causes expansion and contraction in metal components. That expansion creates stress cracks, loosens mounting hardware, and wears out bearings faster. The freeze-thaw cycle in winter compounds the problem. When your furnace heats metal components and then they cool rapidly in sub-zero temperatures, the repeated stress weakens welds and cracks heat exchangers. These conditions make noisy HVAC systems more common in St. Louis than in drier or more temperate climates.
Keystone HVAC St. Louis has been servicing homes in Tower Grove, Kirkwood, Webster Groves, and throughout St. Louis County for years. We understand the specific challenges this climate creates for HVAC equipment and we know which components fail most often in local conditions. Our technicians are trained on the building codes and construction styles common to St. Louis homes, from the brick bungalows in South City to the mid-century ranch homes in Affton. We stock the parts that break most frequently in this region, which means faster repairs and less downtime. When you hire a local company that understands the local environment, you get better diagnostics and longer-lasting repairs.