Top-rated generator install pros.

Get matched with top generator install pros in Cahokia, IL

Enter your zip and get matched with up to 5 pros

Need a pro for your generator install project in Cahokia, IL?

Select your specific project to find the pro for you.

Verified Reviews for Generator Install pros in Cahokia, IL

*The Angi rating for Generator Install companies in Cahokia, 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 Cahokia, 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 June 04, 2025

Find Generator install pros in Cahokia

Avatar for Jarvis Electric Inc
Jarvis Electric Inc
4.7(
134
)

Serving Cahokia, IL and surrounding areas

Approved

In business since 2013

Free estimates

Emergency services offered

"They werenâ t able to install lighting in my brick pillars after I purchased new lights per their request. They said the pillars would probably need to be taken apart to find the problem.They did some rewriting work and it was ok."
Additional Photos
Additional Photos
Additional Photos
9 neighbors recently requested a quote
Recommended by94%of homeowners
Request Quote
Avatar for CD Electric
CD Electric
5.0(
6
)

Serving Cahokia, IL and surrounding areas

Approved

In business since 2021

Free estimates

Emergency services offered

"CD Electric was great! Chase was very knowledgeable and very reasonably priced. We will be using them for any more electrical needs. Highly recommend!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+6

Response time20 mins
Response rate100%
Recommended by100%of homeowners
Request Quote
Avatar for Tri-State Water, Power & Air
Tri-State Water, Power & Air
4.8(
37
)

Serving Cahokia, IL and surrounding areas

Approved

In business since 1993

Free estimates

Emergency services offered

"Kelly installed a new toilet for us. He did a superb job and he deserves a raise. He has such a great attitude. He is a keeper & again, he deserves a raise!! And I am not his mother or grandmother."
My jobs
My jobs
My jobs
My jobs
My jobs

+3

52 neighbors recently requested a quote
Recommended by97%of homeowners
Request Quote
Avatar for Hoffmann Brothers
Hoffmann Brothers
3.8(
32
)

Serving Cahokia, IL and surrounding areas

Approved

In business since 1980

Emergency services offered

Warranties offered

"Best service I have ever received from a company and the employee who did the installation"
Burnt out panel
Burnt electrical panel
Panel replacement
Electrical Panel
Replacement Electrial panel with labeling

+14

Response time10 hrs
1 neighbors recently requested a quote
Recommended by87%of homeowners
Request Quote
Avatar for Solis handyman
Solis handyman
4.3(
8
)

Serving Cahokia, IL and surrounding areas

Approved

Emergency services offered

Warranties offered

Small jobs welcome

"I ordered a Murphy bed from Wayfair that was far more difficult for me to assemble than I thought. Jehu Solis provided a reasonable bid, arrived on time, worked diligently, and, most importantly, did a fantastic job. I would rehire him again."
Ceiling drywall patch
Window frame repair
Window frame repair
11 neighbors recently requested a quote
Request Quote
Avatar for VMK Remodeling
VMK Remodeling
4.2(
19
)

Serving Cahokia, IL and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Warranties offered

"Very pleased with the quality of the kitchen cabinet installation. Company we contacted with for counter tops also commented on the quality of their work. Customer service was excellent. They arrived as scheduled and quickly responded to messages. Work was done well and on time."
Response time2 days
Response rate90%
68 neighbors recently requested a quote
Request Quote
CF Handyworks
New to Angi

Serving Cahokia, IL and surrounding areas

Approved

Free estimates

Warranties offered

Small jobs welcome

Hi, I’m Caleb—a veteran and reliable local handyman serving Wood River, Edwardsville, Glen Carbon, and the greater St. Louis area. I specialize in handyman services, carpentry, and light electrical work, helping homeowners handle everything from small repairs to larger home improvement projects.\n\nWhether you need light fixtures installed, outlets replaced, drywall repaired, doors hung, trim work, or custom carpentry, I bring attention to detail and a commitment to doing the job right the first time.\n\nI take pride in clear communication, showing up on time, and delivering clean, professional results. No shortcuts, no surprises—just quality work you can count on.\n\nSend me a message with your project details or photos, and I’ll help you get it done right.

DVD Shelf L Angle
DVD Shelf R Angle
Front R Angle
Back R Angle
Ceiling Lights Install

+3

6 neighbors recently requested a quote
Request Quote
Avatar for Grasser Electric
Grasser Electric
4.6(
30
)

Serving Cahokia, IL and surrounding areas

In business since 1975

Free estimates

Emergency services offered

"Things went great with them and we are still using them. As soon as our bar is installed, they are going to finish up the electrical work. They were fast, reliable and really nice people. They were also on time. We got bids and they had the lowest bid."
.
.
Recommended by92%of homeowners
Request Quote
Showing 1-10 of 27
Generator Install questions, answered by experts

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 amount of time a standby generator can run continuously is around 3,000 hours on average. However, standby generators can generally run indefinitely as long as they have a continuous fuel supply. Generators hooked up to a home’s natural gas supply are the best option for extended usage, as these won’t rely on a finite fuel supply based on how much you have in storage. Generators running on liquid propane or diesel won’t last as long, as these require fuel storage and regular refueling to stay running.

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.

A 1,500 square foot home will likely need a 15kW to 20kW generator. When deciding on whole-house generator size, add up the total wattage of the devices that you’d like to continue running during a power outage. That way, you can ensure you purchase a generator that can power your necessary appliances or medical equipment during an electrical emergency.

Whole-house generators need to be installed on level ground several feet away from walls and other objects. Because they tap into the electrical system directly, they usually need to be close to your home electrical panel for a transfer switch installation. It also helps with installation if they are near to a gas line or propane tank installation.

The Cahokia, IL homeowners’ guide to generator installs

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

See all articles