​As summer months slip away, you will soon be ready to exchange the coolness of air conditioning for the comfort of heat. Fall weather brings changes to the temperature, and since you will be busy enjoying the crisp air, tailgating parties, or the changing leaves, you shouldn’t put off your HVAC maintenance. You can always schedule an HVAC contractor in Sonoma and Marin County to check your unit for issues, but there are several steps you can take to prepare for winter use.

​Every product has a shelf life, whether it’s the canned goods in your pantry or the HVAC unit keeping your home comfortable. Industry averages for an HVAC unit are between 15 to 25 years, but poor maintenance or other conditions could mean your unit needs to be replaced sooner. To change out the old system for a new one, you will need a professional HVAC contractor in Sonoma and Marin County. It is a big undertaking and one that many homeowners don’t know much about. Here’s an idea of what to expect when a replacement is necessary.