The average cost of a whole-house generator falls between $5,000 and $25,000. Keep reading to learn how much you can expect to spend.
Generator Installation: Everything You Need to Know
Keep your home powered through unexpected outages by planning your generator installation early
Get quotes from generator install pros near you
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Get quotes from generator install pros near you
No obligation · 100% free
Highlights
Generator installation provides your home with a reliable backup power source during unexpected electrical grid outages.
The average cost for this project is $5,200, depending on the size and type of unit.
Fuel source, system capacity, and necessary electrical panel upgrades heavily impact your final project expenses.
Hiring a local generator installer to put in your new unit keeps you and your household safe from dangerous electrical shocks.
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This article was created using automation technology and thoroughly fact-checked and edited by an Angi Editor in accordance with our AI policy.
Losing electricity disrupts your daily routine, making a proper generator installation an excellent upgrade for your home. Setting up a reliable backup power source ensures your essential appliances stay on, protecting your groceries from spoiling and keeping your indoor climate comfortable. This guide covers reasons to get your project done, the average costs, and tips for hiring a pro.
What Is Generator Installation?
Generator installation involves setting up a backup power system to keep your home running when you lose electricity. Professionals connect the unit directly to your breaker panel and fuel supply.
A reliable energy source prevents food spoilage and keeps essential appliances running when the grid fails. Without a properly installed generator, prolonged outages can expose your property to risks like freezing temperatures or sump pump failures that cause basement flooding. Professional setup ensures your system activates instantly during an emergency.
When Is Generator Installation Urgent?
Generator installation becomes an urgent priority when your home experiences frequent power outages that disable critical medical equipment or shut down your sump pump during heavy rain. Losing electricity in freezing weather also leaves your plumbing unprotected against burst pipes, creating the risk of extensive water damage. If you notice these severe vulnerabilities during local grid failures, call a local generator installer today.
Is Generator Installation a "Now" or "Later" Project?
Adding a whole-home power backup system rewards careful planning over urgent, last-minute decisions. Rushing to buy a unit right before storm season limits your equipment choices and leaves you facing long installation delays. If you are preparing for winter weather, booking a local electrician during the off-season gives you time to compare bids and secure necessary permits without stress. Begin researching options and gathering quotes at least three to six months before severe weather hits your area.
How Much Does Generator Installation Cost?
On average, generator installation costs $5,160, with prices ranging from $1,500 to $8,800. The total price depends heavily on the unit's power capacity and the complexity of the electrical work. The type of fuel your system uses drives both equipment and ongoing expenses. You must also account for site preparation, including pouring a concrete pad for whole-house units. Finally, installing a transfer switch and securing local permits increase your final bill.
What Should I Be Saving For?
Proactively budget for generator installation by accounting for the initial project scope and additional cost factors like gas line trenching. Set a savings target that covers any extra materials or site-specific preparation required for the heavy equipment. Many local pros offer financing or payment plans, which help ease the up-front cost of larger projects. Generator installations involve utility coordination that extends your timeline, so having your savings in place early keeps the work moving forward.
Recommended Next Steps for Generator Installation
Assess your needs: List the essential appliances you must run during an outage, like refrigerators and well pumps.
Plan your budget: Review cost factors like unit size and fuel type to set a realistic savings goal.
Hire a local pro: Request quotes from multiple local generator installers today so you can compare quotes and the best options for your home.
Schedule routine maintenance: Book an annual inspection to test the system so it runs perfectly when the grid fails.
How to Find and Hire the Best Generator Installation Pro
Hire a generator installer near you to ensure high-voltage wiring and fuel lines are handled safely and your generator installation is completed correctly. Always ask to see proof of active liability insurance, trade-specific certifications, and valid state licensing. Read recent online customer reviews and request detailed written estimates from at least three different companies to compare labor warranties and avoid hidden fees.
Generator installs reviews from real Angi homeowners in Columbus, OH
Last update on August 14, 2026
- Rob H.
I recently had Mosby Electric perform an electrical installation on 8-14-2026, and I couldn’t be more satisfied with the service. From the moment I called, their team demonstrated fast arrival and professionalism. The electricians were highly knowledgeable, completing the installation...
Mosby Electric - Sarah E.
Joseph did a great job with the staircase and trim. Timely and efficient, clear communication about the work, very fair pricing. For the stairs in particular, done very skillfully in an old house (1893) in a tight spiral, and very creative with how to do the handrail. Did a nice job with...
Vouis Trim Carpentry L.L.C. - Maggie M.
Jason has helped me with multiple household projects, with the most recent being new door installation. He has always showed up on time and organized and has done an incredible job! Jason is very professional and he's now my go-to for anything around my house that needs to be fixed or...
Huff Garage Rescue, LLC - Jeanann S.
Very professional, knowledgeable and helpful! Completed the install on time and as expected.
Ward's Services - Grace G.
Excellent, Prompt, Courteous Service!!! They were super friendly and quite personable. I felt very comfortable with the gentlemen that did the installation. They installed it exactly where I asked them to and they did an excellent job!! I loved their service so much.
Tether House - Lauren R.
The Mosby team went above and beyond for my project. They not only installed my light fixture; they also worked through an old, wonky, and as it turns out incorrect wiring issue from the work of prior contractors. Professional, thorough, conscientious, and kind. Five star experience. Thank you!
Mosby Electric - David E.
Window Depot did an amazing job installing the windows in my basement! The process from start to finish was by far more than what I expected. I would highly recommend Window Depot if you want professionalism from the the consultation to the installation. Dont settle for mediocre when you can...
Window Depot USA of Central Ohio - Mary O.
The guys did an outstanding job and we had a great experience with CarifaTile. I appreciated that Joe reviewed the quotes with me and set expectations prior to the install. The crews showed up as scheduled and always left the areas clean upon leaving the house. We will definitely use...
CarifaTile - Matthew L.
Called ahead and worked quickly to install keyless locks on vintage wooden doors.
Expert Lock and Key, LLC - Locke M.
We had a 20+ year old landscape lighting system that needed replacement. Midwest Lightscapes worked with us to design a much improved lighting system, lighting the exterior of the house and the back yard. Installation of the 45 light system took one and one-half days, and went very smoothly....
Midwest Lightscapes
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