On average, adding a zoning system to an existing HVAC system can cost between $2,000 and $12,500. This includes the cost of dampers, a zone control panel, thermostats for each zone, and labor. If a mini-split system is a better option it can range from $4,500 to $30,000 depending on your home and needs.

Regular maintenance is crucial in avoiding expensive breakdowns. A service plan ensures your HVAC system receives consistent care, which can help prevent issues that might lead to costly AC repairs or furnace repairs. One major advantage of an HVAC service plan is the priority service it offers.

The higher you set your thermostat in the summer and the lower you set it in the winter, the more money you'll save. That said, setting your air conditioner to 78° F and your heater to 68° F is generally a good compromise.