Seasonal HVAC Tune-Ups in Louisville

Heat pumps work year-round, so they need a check of both modes: the reversing valve, defrost control and sensors, outdoor coil, refrigerant charge, and auxiliary heat strips or backup furnace. We also make sure the thermostat is not bringing on backup heat sooner than needed, which raises electric bills. For more on how heat pumps handle cold snaps, see do heat pumps work in Denver winters.

Wildfire smoke settles over Boulder County most summers, and EPA recommends MERV 13 filtration during smoke events if the system can handle it, along with running the fan more and closing outdoor-air intakes. We measure static pressure before recommending a filter change. Strong winter winds also loosen vent terminations and push debris into intake pipes, so the fall visit includes an outside check of every vent and termination.

Coal Creek Ranch and other subdivisions from the 1980-2000 build-out typically have second-generation equipment. In the fall we test carbon monoxide at the flue and in the house, check gas pressure against the high-altitude table (about a 22 percent derate at 5,400 feet), inspect burners, clean the flame sensor, and test safety switches. In the spring we clean coils and test capacitors and contactors, which are usually what fails first on units this age.

Indoor air in Louisville gets very dry in winter, and many homes in the 1980s and 1990s subdivisions have a humidifier on the furnace. Rebuilt homes are tighter and sometimes have the opposite issue, with condensation on windows if a humidifier is set too high. We service furnace-mounted humidifiers each fall, check the drain and valve, and help set the humidistat for your Louisville home's construction and the outdoor temperature.

Old Town homes from the mining era often have tight basements and venting that has been modified several times. We test draft and CO at each gas appliance and check for working CO alarms near bedrooms. Book heating service in September and cooling or heat pump service in April or May. Our full tune-up checklist details each step.