How much will your project cost? Get Estimates Now

How Much Does It Cost To Install A Generator?

National Average Change Location | View National
Typical Range
$1,152 - $6,283
Low End
High End

We are still gathering data for this location.

View national costs or choose another location.

Let's get local cost data for you. Where are you located?

Can we help you find Electrical pros?

These days, having a home generator is becoming more and more popular. If you lose power in your home due to bad weather, or a natural disaster, a home generator allows you to have light, heat and electricity until power is restored. You may worry that you cannot afford a home generator, but in many cases it feels like a necessity. Here are a few factors that will influence the price of installing a generator in your home.

How much power do you need?

The largest factor when looking at the cost of installing a generator in your home is how powerful it is. You can choose to install a generator that powers your entire house, so that when the power goes out and the generator kicks on, it feels as if there is no difference between your home with regular power and your home with generator power.
However, since running a generator can be expensive, you may choose to go with a smaller, less powerful (and less expensive) model that will only power your major appliances. In this way, you may feel some deprivation when the generator kicks on, but you will have heat, hot water, and the ability for your refrigerator to keep your food from spoiling. The level of comfort you desire at the time of an outage will dictate how much power you want from your generator


Most generators sit outside the home on a cement pad or other separated area. They are installed as permanent fixtures and will need electrical wiring and gas hookup. For this reason it is recommended that you invest in a professional installation. Although it may seem expensive in the short term, installing a generator without prior experience could be costly and dangerous in the long run. In addition to the installation of the generator itself, it is necessary that it sit on a cement block or pad and be separated from the home. So you will need to factor the installation of the cement pad as well as the installation of the generator into your costs.

Portable generators

If you absolutely cannot afford the cost of a fully installed home generator, you can go the much less expensive route and get a portable generator. These units are much less expensive and avoid the cost of installation entirely. However, portable generators have much less power and are usually used to power only one or two appliances, like a refrigerator, during an outage. If power outages are infrequent in your area, and your main concern is only heat, or only food spoilage, then you may consider investing in a portable generator.

Standby Generator

More and more homeowners are realizing that purchasing and installing a standby generator is a necessary step to ensuring their home's safety. The days when occasional power outages could be endured with candles and ghost stories are growing short. Random thunderstorms and freak accidents that threaten to cut power to your home for a few hours are now only one potential danger to your home. Shifting weather patterns are causing severe weather in areas where homeowners are unaccustomed to such calamities. Increasing power supply shortages and power grid failures are also a bigger problem than ever before.

Size is the biggest factor in determining how much your generator will cost. Small, inexpensive generators can be purchased for a few hundred dollars. A large, automatic generator that is designed to completely power a reasonably large home can run more than $20,000. You'll need to take the time with your contractor to properly size the generator you need. Emergency generators are commonly designed to run just the heating, refrigerator/freezer, and basic lighting. Stoves and hot water tanks require a lot of power to operate; some generators can supply power to both of these appliances but not simultaneously. High quality generators also run a lot quieter. If a persistent, dull hum is likely to needle your family, you may want to consider a quiet-running model.

Cost of running a generator

installed home generators draw a lot of power and gas and therefore are expensive to run. Only use a generator when the power is out and it is your only power source. It is not economically wise to be running your generator when it is not needed.


Refer a Pro who does this service and receive an Amazon Gift Card!
Was this page helpful?

Was this page helpful?

How could this page be more helpful?

Share your cost experience

Help others plan and budget for their projects

John Esposito More than 1 year ago
Could anybody help me with the cost to install a 16 kilowatt Generac Guardian whole home generator?
LYNN BATTAGLIA More than 1 year ago
I am only interested in the Solar Generator that I read about in my Amac magazine. I have a condo and I am certain that the assc will notb allow an installed generator. The generator I am interested in has a portable Solar Collector and can be run from a garage or interior room after charging. Are any local (Pittsburgh) companies carrying the Patriot Power Generator?
John Price More than 1 year ago
I want a generator to run my house when the power goes out my house and have a service-connected disability need to have appliances for medications, and C-PAP machine need for sleep. Any local in Orange Park, Florida to install a home generator with a good price.
William Shoto More than 1 year ago
Who did Frank get to install his generator?
Brian Bisgood More than 1 year ago
install a house back-upĀ generator
Donald Barkus More than 1 year ago
Hector Mitchell More than 1 year ago
install a portable generator the right way
Donald Barkus More than 1 year ago
how much did it cost you
Frank Clemens More than 1 year ago
Waiting for my Appointment next week.
David Hackett More than 1 year ago
frank if you don't mind sharing how did it go and who did you get your work done by?

How do we get this data?

  1. Homeowners visit to find a top-rated pro to complete their home improvement project or repair.

  2. Once their projects are completed, the members log in to their accounts and complete a short cost survey.

  3. After compiling and organizing the data, we report it back to you.