Standard 1-inch filters should be replaced every 1 to 3 months. For households with pets, allergy sufferers, or systems that operate continuously, monthly replacement is recommended.

Professional maintenance should be scheduled twice annually—spring service for your cooling system and fall service for your heating system.

Ice formation typically results from restricted airflow caused by a dirty filter or insufficient refrigerant levels. Switch off the AC unit, replace the filter, and contact a professional technician.

A standard central AC system lasts approximately 10 years with proper maintenance, while furnaces also have a 10-year lifespan.

Verify that your outdoor unit is receiving power, confirm your thermostat settings are correct, and check that your air filter is not severely clogged. If warm air persists, low refrigerant levels may be the cause.

An HVAC technician can balance your system's airflow distribution or install a zoning system to provide independent temperature control for specific areas.

Two factors determine cost. If your home is AC ready with an existing line set and coil, installation averages $5,000. If a line set and coil installation is required, expect an average cost of $6,500.

Lower MERV rated filters provide better airflow with less restriction but require more frequent replacement. Anti-allergy filters reduce airflow and may cause your system to overheat.

A 90%+ efficiency furnace replacement averages $5,000. Pricing for 80% efficiency furnaces is determined on a per-job basis.

An average household of 5 people should use approximately 2 bags per month.