HVAC stands for Heating, Ventilation, and Air Conditioning.

The average lifespan is typically 15-20 years, but it can vary based on maintenance and usage.

It's recommended to have your system serviced at least annually to ensure it's running efficiently. We recommend twice a year - at the beginning of fall and again in the spring.

Common signs include strange noises, poor airflow, uneven heating or cooling, and higher energy bills.

Yes, basic tasks like changing air filters and cleaning vents can be done by homeowners. More diagnostic and technical things should be left to a trained, licensed professional.