While your current furnace or air conditioner may be functioning well, there are important reasons to consider a replacement, especially if your system is over 12 years old. Upgrading to a newer unit offers improved efficiency, lower utility bills, and better indoor air quality. Additionally, older systems are more prone to breakdowns, leading to costly repairs. If your unit is older, frequently breaking down and you’re experiencing high energy bills, it is a good idea to consider replacing your furnace or air conditioner.