*The Angi rating for Generator Install companies in Centerville, OH is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Generator Install needs.
*The HomeAdvisor rating for Generator Install companies in Centerville, OH is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Generator Install needs.
Last update on January 13, 2026
Serving Centerville, OH and surrounding areas
Approved
In business since 2010
Free estimates
Emergency services offered
"Very professional and efficient. They came and checked why the generator was not starting. They brought it back up before servicing making sure it would kick in with disconnect. I would definitely recommend them for any electrical needs."
Serving Centerville, OH and surrounding areas
Approved
In business since 2023
Free estimates
Customers say: Quick response
"Jake was super friendly, able to install quickly, and cleaned up as if nothing had been done! We had Jake install a sub panel, a 50A outlet, and a Tesla Wall Charger in my garage. My service entrance was on the other side of the house and he had to fish the feed through our finished basement in a chase. Very happy with the install, everything was done right the first time. Would recommend to anyone!"
+27
Serving Centerville, OH and surrounding areas
Approved
Super Service Award Winner
In business since 2012
Free estimates
Emergency services offered
"Install generator excellent people skills. Fantastic in problem solving."
+13
Serving Centerville, OH and surrounding areas
Approved
In business since 1996
Warranties offered
Credit card accepted
"Fantastic! Owners are professional and stand behind their work."
+12
Serving Centerville, OH and surrounding areas
Approved
In business since 2017
Free estimates
Emergency services offered
"Impressive really lives up to their name! They were prompt, professional, reasonably priced, and answered my questions in an easy to understand format. They also answered questions and made well received recommendations and estimates about a couple of future projects and even completed the installation all in under 45 minutes! In a world of uncertainty, do yourself a favor and hire these guys for your next project because they truly are impressive!"
Serving Centerville, OH and surrounding areas
Approved
In business since 1999
Free estimates
Emergency services offered
"I estimate I have just under $100k in electronics and appliances in my house. We have significant lightning storms in my location. To NOT have lightning suppression installed is significant risk in my mind based on my location in New Jersey. RS LIGHTNING PROTECTION was responsive with a quick cost estimate and a reasonable price based on my research for installation. By the way...installation is part art, such as bends in cable are not more than 90 degrees. It's not just about running grounded cables. This installation in conjunction with surge protection on my electrical panel performed by my electrician and cable protection gives me significant piece of mind that all my appliances and electronics are protected from lightning and any potential surge generated by a near strike. Mr Richard Sherlock knows his subject. Highly recommended. Five stars."
+12
Serving Centerville, OH and surrounding areas
Approved
In business since 2016
Emergency services offered
Warranties offered
"Michael responded immediately to my Home Advisor query and gave a prompt quote to install a 240v outlet in our garage to charge an EV and do another minor outlet replacement. We were happy with the quote and he and his assistant, Javier, came out to complete the work the following day, showing up exactly when expected and finishing 10 minutes earlier than expected. Their work was professional and high quality. They were very courteous and friendly and cleaned up well when finished. Highly recommended!"
+49
Serving Centerville, OH and surrounding areas
Approved
Customers say: True professional
"Deon was amazing. I had hired this company last year. They did an amazing job then, so I called them again for this job. Deon is very knowledgeable, personable, easy to talk to, and very easy to work with. He knows exactly what he’s doing and gets right to it. He explains things every step of the way. And, the prices are very fair. When I talked to Deon on the phone, he asked me if I was able to do laundry at home. And, since the outlet that needed replaced was the outlet for the washer, he was able to come out within 2 days. Great, great company. I told Deon that when we move he was going with us. Will definitely hire this company again."
+12
Serving Centerville, OH and surrounding areas
Approved
In business since 2005
Free estimates
Emergency services offered
"Janson arrived on time and installed a new kitchen light fixture. From start to finish it took about 30 min. Janson did an excellent job for a fair price. Will call again when I need electrical work done. Thanks!"
+3
Serving Centerville, OH and surrounding areas
Approved
In business since 1990
Free estimates
Warranties offered
"He communicated very well to understand what I wanted then showed up on time for day of project. Installed a ceiling light and 2 outlets. End product works great and would definitely recommend."
When maintained properly, a whole-house generator can last up to 20 years. Costs to maintain and repair generators vary by location and type of generator, but you can expect to pay about $150 to $300 per year for annual generator maintenance checks. An experienced generator service technician will inspect your generator’s engine filter, starting mechanism, fuel, lubrication, and coolant levels to keep your generator in good working condition for as long as possible.
Installing a whole-house generator costs about $5,000 on average. Prices range from $1,550 to $8,500, depending on size, brand, fuel type, and assembly. The size of your whole-house generator is the most significant cost factor, with large homes with high energy demands costing the most to power. Types of whole-home generators include:
Portable generators with 1kW–7.5kW capacity: $500–$2,000
Partial generators with 9kW–20kW capacity: $2,000–$6,300
Whole-house generators with 22kW–48kW: $5,000–$18,000
When choosing the right size generator for your needs, consider a few items to help calculate the wattage you’ll need. Start by determining which household items and appliances you want to power, and then add the wattages together. Check out the wattage of these essential appliances:
Refrigerator: 600 watts
Large dehumidifier: 700 watts
Large window air conditioner: 1,400 watts
Water heater: 3,000 watts
Running home appliances like these requires a partial or whole-house generator. A portable generator may be enough to power your home if you only plan to keep a refrigerator and freezer running.
Here’s what you can run with different wattages and types of generators:
Portable generator:
2,000 watts can handle a large appliance like a freezer or refrigerator, plus a few smaller items like phones or computer chargers.
4,000 watts will keep two large appliances operating and a few smaller devices.
8,000 watts should power most essential appliances and other devices, including a sump pump, well pump, or your dishwasher.
Partial to whole-house generator:
20,000 watts and above will make it seem like your home’s power is still on.
The value of installing a whole-house generator is that your home has guaranteed power, even if the power grid in your area is down. Whether a whole-house generator is worth installing in your home depends on how often you use it, your home’s location, and your lifestyle. For example, installing a whole-house generator is likely worth it if you:
Experience frequent or prolonged power outages
Work from home
Store a lot of cold food
Have a sump pump
Have a pump for well water
Use electronic medical devices
Live in a climate requiring heating or cooling
From average costs to expert advice, get all the answers you need to get your job done.
The cost to install a generator transfer switch depends on several factors. Our guide will help you understand all of the costs.
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.
Natural gas generators are whole-home standby generators that are connected to your home’s natural gas line. The average cost for a natural gas generator is $12,000.
Depending on your needs, many types of generators can power your home, RV, or campsite. Check out our guide for the best types of generators.
Whole house generators can power homes when electric problems hit, but they aren’t for everyone. Here’s what you should know when you’re thinking about buying.
Say goodbye to blackouts by learning how to install a generator transfer switch. By following our guide, you’ll have a solution to nonstop power.
