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Best generator install pros near Marissa, IL

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

Avatar for CD Electric
CD Electric
5.0(
6
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Marissa, IL and surrounding areas

Approved

In business since 2021

Free estimates

Emergency services offered

"CD Electric was fantastic. They added electrical outlets to the interior and exterior of my home and installed an exterior light. Chase was very thorough with the estimate he provided me and completed the job in the time he said it would take. I would definitely hire them again for any future jobs and I highly recommend them to anyone else."
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+6

Response time20 mins
Response rate100%
Recommended by100%of homeowners
Tiger Plumbing, Heating, Air Conditioning, & Electrical Services
3.4(
357
)
Fixed Generator - InstallFixed Generator - Repair

Serving Marissa, IL and surrounding areas

Approved (Corporate)

In business since 1993

Free estimates

Emergency services offered

"They came in real quick and fixed everything for us. We had them install a toilet for us about a year ago too, and since they'd done such a good job, we hired them now to fix our situation."
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+5

302 neighbors recently requested a quote
Recommended by73%of homeowners
Avatar for Inventors Imaginarium
Inventors Imaginarium
New to Angi
Portable Generator - Repair

Serving Marissa, IL and surrounding areas

Approved

Free estimates

Emergency services offered

Small jobs welcome

We take pride in delivering dependable, high-quality craftsmanship with honest communication from start to finish. Whether you're planning a small repair or a larger renovation, our goal is to provide durable, professional results that improve the value, function, and appearance of your property.\n\nOur services include residential construction, remodeling, repairs, renovations, demolition, framing, drywall, flooring, painting, trim and finish carpentry, deck and porch work, fencing, siding, roofing repairs, door and window installation, and general handyman services. We also handle property improvements, rental property maintenance, and custom projects tailored to your needs.\n\nEvery project is completed with attention to detail, quality materials, and a commitment to doing the job right the first time. We believe in treating every home as if it were our own by maintaining a clean worksite, respecting your property, and keeping you informed throughout the project. \n\nChoose us today!

4 neighbors recently requested a quote
Avatar for Grasser Electric
Grasser Electric
4.6(
30
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Marissa, IL and surrounding areas

In business since 1975

Free estimates

Emergency services offered

"I had a great experience with them. Their bid was right in the middle where it should have been. The guy who showed up had estimated for 5-6 hours worth of work, and he ended up staying here for almost 9 hours, but they didn't charge me extra for it, and I was happy about that. He was able to run the wiring where I wanted it to run. There weren't all the cables showing and he was able to stick it through my wall, and that is why he ended up staying here for so long. I was really happy with the service. My biggest thing was that the guy stayed until the work was done, he didn't say he would come tomorrow even if it meant working overtime."
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Recommended by92%of homeowners
Avatar for Bi-State Electric, LLC
Bi-State Electric, LLC
4.6(
9
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Marissa, IL and surrounding areas

In business since 1995

Free estimates

Emergency services offered

"We hired Bi-State Electric to run a 20 amp circuit from our house to our new garden shed. This required Scott to hand dig a trench about 25 feet long between the house and shed. He installed a small porch light on the shed and a ceiling fan/light inside with switches to operate both. He also installed a total of 5 outlets at various locations inside the shed. As an added service, Scott installed a Whole House Surge Protector to our electrical panel and provided a safety inspection of the panel at no additional cost above his quoted price. Once the work was completed, the County Inspector came out and gave his stamp of approval."
Storm Damage Repair
Back up Generator
200 amp Service Upgrade
Scott
Recommended by88%of homeowners
Avatar for Headen Electric, Inc.
Headen Electric, Inc.
4.4(
7
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving Marissa, IL and surrounding areas

In business since 2010

Free estimates

Emergency services offered

"Had them perform a whole circuit breaker box replacement plus transfer switch install. Breaker box was installed within two weeks and the transfer switch was installed about a month later. Both installed within a single work day so far without issue. They also stayed to answer several questions I had about the systems which was very helpful. Thus far I would recomend them. If youre using this as a guide make sure the people you use are fully bonded and insured these people are some of my lower bids for the job from different companies were not."
Showetime Cinemas
Buffalo Wild Wings Grill and Bar
Buffalo Wild Wings Grill and Bar
Buffalo Wild Wings Grill and Bar
Belleville, IL

+54

Response time1 day
Recommended by80%of homeowners
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Generator Install FAQs, answered by experts

Yes. You can connect your home back-up battery to a generator with its designated charger. Be sure that the output of the generator matches the input requirements for the battery for best results.

In many cases, yes. There are models called dual-fuel generators and fuel switches, but only between certain types of fuel. For example, with the right setup you can convert a generator from natural gas to propane. Some allow switching between diesel and gasoline. There are even tri-fuel generators available in some cases, which adds a large layer of security if you are worried about fuel availability in times of crisis. Always check your generator capabilities and manual instructions before trying to switch fuels. Some generators can use another fuel but may need a fuel conversion kit to prep them first.

While standby generators provide essential backup power, they can fail when you need them most due to lack of maintenance, fuel supply issues, dead batteries, electrical problems, or improper installation. To avoid costly failures, professional installation and regular maintenance are crucial. Licensed technicians ensure safety, uphold warranty requirements, comply with regulations, and provide expert servicing.

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. 

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 Marissa, IL homeowners’ guide to generator installs

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