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
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

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
6 neighbors recently requested a quote
Recommended by94%of homeowners
Request Quote
Avatar for CD Electric
CD Electric
5.0(
6
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Cahokia, 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."
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
)
Fixed Generator - Install

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

39 neighbors recently requested a quote
Recommended by97%of homeowners
Request Quote
Avatar for Hoffmann Brothers
Hoffmann Brothers
3.8(
32
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+1 more

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
Recommended by87%of homeowners
Request Quote
Avatar for VMK Remodeling
VMK Remodeling
4.2(
19
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+3 more

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%
16 neighbors recently requested a quote
Request Quote
CF Handyworks
New to Angi
Fixed Generator - InstallFixed Generator - RepairPortable Generator - Install+1 more

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

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

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 28
Generator Install questions, answered by experts

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.

DIY is possible for basic setups. Professional installation ensures safe and proper electrical connections.

Yes, installing a generator usually increases your property value because buyers are getting the added peace of mind knowing they’ll be able to maintain power through blackouts. In most cases, you should see close to a 100% return on investment (ROI). Keep in mind that home generators usually need a permanent foundation, and installing a concrete slab will likely raise your property taxes slightly.

Natural gas generators are designed to run for extended periods of time, such as power outages during a natural disaster. Since there’s no limit to the supply of natural gas, they don’t need to stop for refills. However, generators do need maintenance, including pauses to check and add oil. Constantly running them will also cause a lot more wear and tear, leading to a shorter lifespan.

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.

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