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Top-Rated Generator install pros in Marietta - Updated Nov 2026

Avatar for SON LIGHT ELECTRIC LLC
SON LIGHT ELECTRIC LLC
5.0(
10
)
Fixed Generator - InstallFixed Generator - Repair

Serving Marietta, OH and surrounding areas

Approved

In business since 2022

Free estimates

Small jobs welcome

"Yes, serviced my Generac and found the oil cap was loose and had been leaking. Fixed it all up and now ready for winter. Also had a burned out wall socket and found the problem right away and fixed it and all the other wall sockets started working. So happy it wasnt a major wiring problem. Very pleasant and polite and kept us informed the whole time."
13 neighbors recently requested a quote
Recommended by60%of homeowners
Alpha Electrical Services
4.7(
61
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+1 more

Serving Marietta, OH and surrounding areas

Approved

In business since 2016

Free estimates

Credit card accepted

If you are looking for a qualified electrical service who prides themselves on quality work, then Alpha Electrical Services is the company for you! We strive for complete customer satisfaction on every job. We have a variety of experience and make you our first priority! Come and give Alpha Electrical Services today! Back by over 30yrs experience!! Can handle absolutely anything electrical!!

9 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for SON LIGHT ELECTRIC LLC
SON LIGHT ELECTRIC LLC
5.0(
8
)
Fixed Generator - InstallFixed Generator - Repair

Serving Marietta, OH and surrounding areas

Approved

In business since 2022

Free estimates

Credit card accepted

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

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+4

Response time6 hrs
Response rate94%
46 neighbors recently requested a quote
Kennylectric
New to Angi
Portable Generator - Repair

Serving Marietta, 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.

Avatar for Bock's
Bock's
3.5(
3
)
Portable Generator - Repair

Serving Marietta, OH and surrounding areas

In business since 2008

Free estimates

Credit card accepted

"One of the best home repair experiences we have ever had. Before Jeremy I dreaded the thought of having another home repairman set foot on our property knowing it would be a long slow process, full of no show days without any prior notice and usually not very satisfactory job. Jeremy is skilled, honest, a perfectionist about his work and the best communicator. You will want to thank me for telling you about him."
Response time2 days
Recommended by100%of homeowners
Rock Solid Maintenance Company
0.5(
1
)
Fixed Generator - Install

Serving Marietta, OH and surrounding areas

In business since 2008

Free estimates

Credit card accepted

Rock Solid Maintenance Company, in business since 2008 is your locally owned and operated property maintenance company. We specialize in anything from roofing, to all other areas of home projects, including remodeling projects. If you're looking for the right company at the right price, with the highest quality of work, we're exactly who you need! Give us a call today, and we look forward to your future business! \n \n

Generator Install FAQs, answered by experts

Generators are safe to use as long as they are installed and operated correctly according to the manufacturer's recommendations. The most critical safety tips are to never use a portable or fuel-powered generator inside an enclosed space due to the risk of lethal carbon monoxide poisoning; always operate it outdoors where fumes can dissipate away from your home. Additionally, never attempt to connect a generator to your home’s electrical panel yourself—hire a professional to ensure the setup meets safety standards. Finally, avoid overloading the generator by not connecting more appliances than it is rated for, as this can damage your equipment or cause a fire.

It’s usually better to repair your generator if it isn’t working properly, as it will typically be much more affordable and should yield similar results. Generator repairs cost around $300 on average, while installing a new whole-house generator costs around $5,000 on average. The only exception is if you know your generator is reaching the end of its useful life, usually between 30 and 40 years. If you have an older generator, you could face multiple repairs in the coming years, which might mean that a full replacement will be more cost-effective over time.

To determine the right size generator for your house, you should calculate the total wattage of the appliances and devices you want to power during an outage. List all essential items, note their start-up wattages, and add them together.

Here are some typical wattage requirements for common appliances:

  • Refrigerator: 600 watts

  • Large dehumidifier: 700 watts

  • Large window air conditioner: 1,400 watts

  • Water heater: 3,000 to 4,500 watts

  • Electric furnace: 5,000 to 25,000 watts

A 7,500-watt generator might be sufficient for essentials like a refrigerator, freezer, well pump, and lighting circuits. However, for high-demand items like a water heater or furnace, a whole-home generator is a better choice. A portable generator may be enough if you only need to power a few critical items.

While home square footage can offer a rough estimate, it is not always a reliable indicator. For reference, here are some typical generator sizes based on square footage:

  • 1,000 sq ft: 6–9 kW

  • 1,500 sq ft: 7–10 kW

  • 2,000 sq ft: 10–14 kW

  • 2,500 sq ft: 12–16 kW

  • 3,000 sq ft: 16–20 kW+

For the most accurate sizing, consult a professional who can calculate your home's peak and average power consumption and recommend the optimal generator.

Yes, natural gas generators can work without electricity. Natural gas generators are a common type of backup or whole-house generator that operates when the electrical grid isn’t working. The trick is using a transfer switch (which usually needs to be installed with the generator) that safely switches the home electrical system from the power grid to generator power when needed.

In most cases, there are no tax credits available for home generators. However, that’s a general statement that applies to federal tax credits, so you might have access to state or local tax incentives. You can check the Database of State Incentives for Renewables & Efficiency (DSIRE) for more information about your area. If you hire a reliable home generator installer, they should also know if there are any state or local perks you can use to reduce your installation costs, including tax breaks and rebates.

The Marietta, OH homeowners’ guide to generator installs

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