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Verified Reviews for Generator Install pros in Franklin, OH

*The Angi rating for Generator Install companies in Franklin, 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 Franklin, 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 28, 2026

Find Generator install pros in Franklin

Avatar for Apollo Home
Apollo Home
3.7(
72
)

Serving Franklin, OH and surrounding areas

Approved (Corporate)

In business since 1969

Free estimates

Emergency services offered

"very timely and used them a lot and courteous and knowledge everything was taken care of i had a couple other questions he answered and explained things and what was still happening with the sink and that it wasn't installed correctly and he explained all this very helpful."
Furnace Installation
Heat Pump Installation
Response time6 hrs
217 neighbors recently requested a quote
Recommended by69%of homeowners
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Avatar for CJS SYSTEMS HEATING & COOLING
CJS SYSTEMS HEATING & COOLING
5.0(
3
)

Serving Franklin, OH and surrounding areas

Approved

In business since 2024

Free estimates

Emergency services offered

"They were very timely, courteous and professional. I am 100% satisfied with the work completed. We had a water heater and water softener installed and would recommend anyone else to use CJS as well."
Response time3 days
22 neighbors recently requested a quote
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Kennylectric
New to Angi

Serving Franklin, 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 Next Level Contracting, LLC
Next Level Contracting, LLC
5.0(
11
)

Serving Franklin, OH and surrounding areas

In business since 2017

Free estimates

Emergency services offered

"Andie measured, installed, and cleaned up with great attention to detail. His friendly, professional, and skilled customer service is refreshing. Would hire Andie and Next Level again."
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+20

Recommended by90%of homeowners
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Generator Install questions, answered by experts

Generators are usually sized by running watts and starting watts. Ideally, you’ll want a generator that can offer both the necessary running watts and starting watts for everything you need to power without going beyond 90% of its capacity. Calculate your home’s electrical load based on the breakers in your home or adding up the appliance and lighting needs of connected rooms.

In most municipalities, you will need a permit to install a permanent home generator, including emergency backup, partial-home, and whole-home generators. A permit for a generator usually costs between $50 and $250, depending on where you live. Your electrician or certified generator installer will usually pull the permit for you—and might be required to do so by your building department—but you’ll be on the hook for the cost of the permit. You should ask your installer before agreeing to any work if they will pull the necessary permits for your project.

Whole-house generators can run continuously for extended periods, even for weeks at a time (around 400 to 500 hours), as long as they have a sufficient fuel supply. However, this type of extensive use will increase wear and tear and can shorten the generator's overall lifespan. During long periods of operation, it's important to check and refill the engine oil as needed, potentially as frequently as daily depending on the model. If your generator uses a fuel tank, ensure it is kept full to prevent unexpected shutdowns.

If you have a transfer switch properly installed, the generator and main electrical power cannot feed the system at the same time. However, you should still shut off the power at your main circuit breaker panel before activating the generator. If you do that, you’ll simply need to shut off the generator and reset your circuit breaker once the local power comes back on.

Sizing a generator is a careful process that requires calculating the electrical load of your entire house. You have to take into account every device you want to use and their wattage requirements, plus the wattage needed to start them, and look for a generator that can safely run all that at around 80% capacity.

In more practical terms, a small home can run on a 10,000-watt generator (and if you only want to power a few key appliances, much less than that). A mid-sized home may need something between 15,000 and 22,000 watts. Larger homes require 25,000 watts or more. 

The Franklin, 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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