Whole house generator cost (installation) is roughly $3,800 to $12,500 per unit depending on the amount of energy the generator produces. Home generator cost (installation) is roughly $400 to $800 per kilowatt (kw) of energy depending on your geographic location.
The costs on this page represent a combination of 1) sample of costs provided to us by generator installers around the country and 2) research done by our staff. To get a more precise estimate, we recommend that you request a quote from a local whole house generator installer near you.
Whole house generator cost (installation) is roughly $3,800 to $12,500 per unit depending on the amount of energy the generator produces. The amount of energy a generator produces is measured in kilowatts (kw). Generators usually range from 5 to 25 kw and can power a range of objects, from a single refrigerator and a few lights to an entire home.
Home generator cost based on the generator size (number of kw produced):
Home generator cost for 5-10 kw: $3,800 to $5,100.
Home generator cost for 10-15 kw: $5,100 to $5,950.
Home generator cost for 15-20 kw: $5,950 to $8,750.
Home generator cost for 20-25 kw: $8,750 to $12,500.
These estimates are rounded. These costs are for installation only and do not include the cost of the generator itself. upper end of these ranges include expensive geographic locations.
There are many things to consider when you are planning to install a generator. Here are a few things to keep in mind:
Methods Used to Prepare Home Generator Cost Estimates
Generator installation companies generally price installations on a per unit approach. The generator installation company will discuss with you how much power is desired for your home and determine the size of generator required. If you are interested finding out how much it will cost to install a generator in your area, Request a Price Quote.
Reasons for Generator Prices Variances
Generator installers use a combination of methods to evaluate and price projects. They take several factors into consideration that impact the cost of the project, including:
Generator size. Generator size is the primary cost consideration. Larger generators may be more expensive to install due to an increased degree of difficulty.
Home preparation. Larger generators may require concrete pads, fuel lines, and electrical transfer switches to be installed along with the generator. Generally, the cost of these additional services are not included in the generator cost.
Brand. Certain high-end brands like Generac or Cummins may be more expensive than brands like Champion or Honda.
Maintenance. Maintenance may be required annually or seasonally, and typically come at an additional cost.
Geography. If you are in a high-cost area or in an area that is difficult to reach (more travel time), then costs will generally be higher.