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Verified Reviews for Generator Install pros in Greenfield, OH

*The Angi rating for Generator Install companies in Greenfield, 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 Greenfield, 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 June 05, 2026

Find Generator install pros in Greenfield

Avatar for JMJ Real Estate Properties
JMJ Real Estate Properties
5.0(
3
)

Serving Greenfield, OH and surrounding areas

Approved

Free estimates

Emergency services offered

Small jobs welcome

"Had Matt run new wire for a big addition and hook everything up. He was easy to work with, communicative, and fast. Very talented for a young guy. I was nervous about some potential complications but once we turned everything on, zero issues"
Full house remodel
Full house remodel
Full house remodel
Full house remodel
Full house remodel

+2

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Kennylectric
New to Angi

Serving Greenfield, OH and surrounding areas

Approved

Licensed electrician with 10 years of hands-on experience offering reliable, high-quality electrical services for residential, small commercial and industrial projects. Whether you need a quick fix or a full installation, I bring professional expertise and attention to detail to every job.\n\n✔ 10 years of licensed experience\n✔ Troubleshooting & repairs\n✔ Lighting installation & upgrades\n✔ Outlet, switch, and panel work\n✔ Clean, safe, and code-compliant service\n\nDependable, honest, and committed to getting the job done right the first time. Flexible availability for evenings and weekends.\n \nPlease reach out to schedule your next project.

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Avatar for Gleason's Home Repair
Gleason's Home Repair
New to Angi

Serving Greenfield, OH and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

I’m a reliable, detail-oriented contractor dedicated to delivering quality work that lasts. I take pride in doing the job right the first time, whether it’s a small repair or a full project. I believe in honest communication, fair pricing, and showing up when I say I will. My goal is simple: leave every customer satisfied and confident in the work done on their home.

Breaker box upgrade
Breaker box upgrade
Breaker box upgrade
Addition
Addition

+2

1 neighbors recently requested a quote
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Avatar for General Power Services
General Power Services
5.0(
2
)

Serving Greenfield, OH and surrounding areas

In business since 2023

Free estimates

Small jobs welcome

"Very pleased with the work performed. Rich and his team were very friendly, professional and left the work area super clean. Would definitely hire again!"
Whole House generator install
Whole House generator install
Concrete pad form
26 KW
Our Pads

+3

Response time4 days
Response rate85%
Recommended by100%of homeowners
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Generator Install questions, answered by experts

The average cost to install a home generator is $5,200, but total costs can range from $500 to $18,000 or more. The final price depends on several factors, including the generator's size, type, brand, fuel source, and the cost of labor and assembly. The generator's size is the most significant cost factor, as units that can power larger homes with higher energy demands cost more.

Cost breakdowns by generator type are typically as follows:

  • Portable or Emergency Backup Generators (1kW–7.5kW): $500–$2,000

  • Partial-Home Generators (9kW–20kW): $2,000–$6,500

  • Whole-House Generators (22kW–48kW): $5,000–$18,000

To ensure you get the right size unit for your needs without overpaying, consider hiring an electrician to calculate the electrical load of your essential appliances. It is also recommended to get at least three quotes from qualified installers to find the best fit for your budget.

A 10,000-watt generator can run a small to mid-sized central AC unit (typically up to 3 tons or 36,000 BTU) along with a few other appliances. However, larger AC units or additional loads will require a bigger generator. Consult a local generator installer to ensure you add the correct size generator to your home.

A 1,500 square foot home will likely need a 15kW to 20kW generator. When deciding on whole-house generator size, add up the total wattage of the devices that you’d like to continue running during a power outage. That way, you can ensure you purchase a generator that can power your necessary appliances or medical equipment during an electrical emergency.

Yes, in some locations, it is required by the National Electric Code (NEC) to have a transfer switch installed for electrical emergencies. In addition to following electrical code, generator transfer switches ensure your home is fully protected during a power outage. By switching the power from the main breaker to the generator breaker, you can seamlessly operate your HVAC, lights, appliances, devices, and more during an emergency. 

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 Greenfield, OH homeowners’ guide to generator installs

From average costs to expert advice, get all the answers you need to get your job done.

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