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Verified Reviews for Generator Install pros in Sherrard, IL

*The Angi rating for Generator Install companies in Sherrard, IL 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 Sherrard, IL 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 November 17, 2025

Find Generator install pros in Sherrard

Avatar for Tri-State Water, Power & Air
Tri-State Water, Power & Air
5.0(
5
)

Serving Sherrard, IL and surrounding areas

Approved (Corporate)

In business since 1992

Free estimates

Emergency services offered

We are the experts in the field of Whole Home Generator Sales and Installation, with over 20 years of experience in the game.\nWe provide turn-key installation by licensed professionals - 24 hour emergency service - Remote Monitoring - Long term maintenance and service by factory trained technicians.

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+3

38 neighbors recently requested a quote
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Avatar for Empire Electric, Inc.
Empire Electric, Inc.
5.0(
6
)

Serving Sherrard, IL and surrounding areas

In business since 2022

Credit card accepted

Offers commercial services

"Empire Electric goes above and beyond on customer service. Professional and friendly. Found the root of the problem quickly and were able to make the repair on the spot! Highly Recommend!"
Response time11 hrs
Response rate100%
Recommended by100%of homeowners
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J W Koehler Electric, Inc.
4.8(
2
)

Serving Sherrard, IL and surrounding areas

In business since 1969

Free estimates

Credit card accepted

"JW. Koehler Electric has always had a welcoming professionalism that makes you sure to call them back for other projects in their area. I used them for our Premier customers and the customers are always happy. They respond quickly and if they can do it they will without charging arm and leg. I would definitely recommend JW Koehler !"
Recommended by100%of homeowners
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Freedom Electrical LLC
5.0(
3
)

Serving Sherrard, IL and surrounding areas

In business since 2024

Credit card accepted

"I needed security cameras installed, and I am so glad I ran across Mitchell through Angi. I can’t say enough good things about this guy. He was on time and communicated well in person and through text. He was fast, effective, efficient, thorough, honest, hardworking, and just an overall decent guy. Once again, my wife and I are so glad that we ran across Mitchell at Freedom Electric and Construction, and we are looking forward to working with him on future projects!"
New install
Upgraded panel
Before
Typical replacement
Response time5 hrs
Recommended by100%of homeowners
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Avatar for Mangieri Electric
Mangieri Electric
New to Angi

Serving Sherrard, IL and surrounding areas

Free estimates

Emergency services offered

Warranties offered

Mangieri Electric is a trusted, locally owned electrical contractor serving residential, commercial, and industrial clients. We specialize in new construction, remodels, service upgrades, backup generator installations, low-voltage systems, and preventative maintenance. Our licensed electricians are known for quality workmanship, honest communication, and completing jobs on time and on budget. Whether you need troubleshooting, a full electrical system, or a custom solution, we’re committed to powering your home or business safely and efficiently. We're proud members of ABC and hold to the highest standards of professionalism and safety.

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Simplicity Electric
New to Angi

Serving Sherrard, IL and surrounding areas

In business since 2020

Free estimates

Credit card accepted

Simplicity Electric is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have several years of hands on experience to provide innovative ideas and suggestions tailored to your projects. Our services are customized to your individual needs, paying close attention to the details of each project that we are involved with. Please feel free to contact us today!

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Generator Install questions, answered by experts

It is safe to run a generator continuously, but you must follow safety protocols to ensure personal and home safety. Read the manufacturer’s instructions for specific recommendations, but the general recommendation is to turn generators off overnight or when you’re away from the house. Overworked generators can pose a fire hazard and if your generator is not in a well-ventilated area, running it continuously could lead to carbon monoxide poisoning.

Costs depend on generator type, labor, and additional wiring or transfer switch requirements.

As a safety measure, you should always turn off the main breaker while operating your generator’s backup breaker. In addition, you should also switch off all appliance breakers so you don't have a power surge when the main breaker turns back on. And finally, turning off the main breaker prevents back-feeding, which endangers utility workers with the risk of electrocution. Back-feeding could also destroy the electrical circuits of your neighbors if they use the same power network.

The cost to install a whole-house generator averages $5,200, with a typical price range of $1,500 to $8,900. However, total costs can vary from $400 for a small portable unit to over $18,000 for a large-capacity system. The most significant cost factor is the generator's size and capacity, but other variables include the brand, fuel type, and labor for assembly and installation.

Generator costs can be broken down by type:

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

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

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

To avoid paying for more power than you need, consider hiring an electrician to calculate the electrical load for your essential appliances. It is also recommended to get at least three quotes to find the best deal for your specific needs and budget.

Yes, in most municipalities, you will need a permit to install a permanent home generator, including emergency backup, partial-home, and whole-home models. Because these installations involve significant alterations to your home's electrical system and produce exhaust fumes, local governments often require a permit or inspection for safety purposes. A generator permit typically costs between $50 and $250, depending on your location. Your electrician or certified installer can usually handle the permitting process for you, but you will be responsible for the cost. It's a good practice to confirm with your installer that they will pull all necessary permits before work begins.

The Sherrard, IL 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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