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Verified Reviews for Generator Install pros in Marietta, OH

*The Angi rating for Generator Install companies in Marietta, 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 Marietta, 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 July 10, 2025

Find Generator install pros in Marietta

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!

Recommended by100%of homeowners
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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."
10 neighbors recently requested a quote
Recommended by60%of homeowners
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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.

photos of my work
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+4

Response time6 hrs
Response rate94%
45 neighbors recently requested a quote
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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.

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Avatar for Hurricane Home Solutions Southern Tier Inc. (S Ohio)
Hurricane Home Solutions Southern Tier Inc. (S Ohio)
4.6(
206
)
Fixed Generator - Install

Serving Marietta, OH and surrounding areas

In business since 2019

Free estimates

Emergency services offered

"Generator installed. Excellent job putting everything in and cleaning up."
Response time1 day
Response rate100%
Recommended by93%of homeowners
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Avatar for Buckalew Handyman Services -
Buckalew Handyman Services -
3.0(
5
)
Fixed Generator - RepairPortable Generator - Repair

Serving Marietta, OH and surrounding areas

In business since 2020

Free estimates

Emergency services offered

"Professional service. On time and work was done correctly. Pleasant experience. Would and will use again if needed."
Response time7 hrs
Response rate93%
Recommended by75%of homeowners
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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
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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

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Generator Install questions, answered by experts

To power a central air system during a power outage, the whole-house generator will need to be at least 5,000 watts, and this number will significantly increase for larger units. Check the specific wattage requirements of your AC unit to choose the right generator size. Consider consulting a generator installer to ensure your whole-house generator meets your electrical load needs.

If you’re wondering whether gas generators produce carbon monoxide, know that natural gas generators do not produce carbon monoxide if they are functioning properly, as natural gas burns cleanly. However, if the generator malfunctions and the gas does not burn completely, there is potential for carbon dioxide to be produced. To prevent malfunctions, it's crucial to perform regular maintenance, including running the generator weekly and scheduling professional inspections every 6 to 12 months. Also, be sure to test your carbon monoxide detectors regularly to ensure they function in the rare case of the generator producing carbon monoxide.

To reduce AC startup power for a whole-house generator, install a soft start kit or hard start capacitor, which lowers the initial surge by gradually ramping up the compressor. Using a smart load manager can also help by staggering startup loads, preventing a system overload and future costly repairs.

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.

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.

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.

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