Whole house generators typically last around 20-40 years. Some things that can affect the lifespan of your whole house generator are:  The size of your generator.  How frequent and long your power outages are. How well your generator is maintained. One of the best ways to get the most out of your whole house generator is to maintain it regularly. Additionally, you should ensure that your generator is the correct size for your home, since a properly sized generator will last longer. To get your whole house generator maintained or replaced, give us a call today.