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TRUSTED BY COLONA, IL HOMEOWNERS

  • Average homeowner rating star icon4.3
    Average homeowner rating
  • Verified reviews icon13
    Verified generator installs reviews

Verified Reviews for Generator Install pros in Colona, IL

*The Angi rating for Generator Install companies in Colona, 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 Colona, 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 Colona

Avatar for Tri-State Water, Power & Air
Tri-State Water, Power & Air
5.0(
5
)
Fixed Generator - InstallGenerator - InstallGenerator - Install - For Business

Serving Colona, 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

15 neighbors recently requested a quote
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Avatar for Empire Electric, Inc.
Empire Electric, Inc.
5.0(
6
)
Fixed Generator - InstallGenerator - Install - For Business

Serving Colona, IL and surrounding areas

In business since 2022

Credit card accepted

Offers commercial services

"I had hired another electrician that missed two appointments. Empire was at my house when they said they would be there. They were very friendly and courteous. They completed the job exactly as I wanted, finished sooner than expected and under previous bids that I had received. I now have an electrical company that I will call for all my electrical needs. I have already recommended them to my friends. Thanks Empire."
Response time11 hrs
Response rate100%
Recommended by100%of homeowners
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J W Koehler Electric, Inc.
4.8(
2
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+3 more

Serving Colona, IL and surrounding areas

In business since 1969

Free estimates

Credit card accepted

J W Koehler Electric, Inc., has completed a variety of electrical projects and services for local residents and businesses. Customer satisfaction is what determines our success, which is why we take a hands-on approach and keep the customer informed through every phase of the project. When interacting with our company, you'll notice that we're particularly focused on the principles of quality workmanship, timely completion, competitive pricing, and integrity in all our business dealings. We combine knowledge and research with our extensive practical experience to ensure a specialized approach for your project needs. Give us a call today!

Recommended by100%of homeowners
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Freedom Electrical LLC
5.0(
3
)
Portable Generator - Repair

Serving Colona, 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 canâ t say enough good things about this guy! He was on time and communicated well in person and through text. He was fast, 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 Electrical, 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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Finley Electric LLC - Home Facebook
3.1(
7
)
Fixed Generator - RepairGenerator - Repair - For BusinessPortable Generator - Repair

Serving Colona, IL and surrounding areas

In business since 2015

Free estimates

Credit card accepted

"We were very pleased with the quality of service that Finley Electric provides. We sincerely appreciated their responsiveness and the way they conduct business. We will recommend their company to others because of our satisfaction with their service."
Response time7 hrs
Recommended by100%of homeowners
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Showing 1-10 of 13
Generator Install questions, answered by experts

You can determine what size generator you need for a transfer switch by matching the switch to the largest outlet on your generator. Larger generators can power up to 10 circuits, while most 5,000-watt generators can provide power to six circuits. So, if your generator’s largest outlet is 30 amps, you’ll need a 30-amp transfer switch.

You may need a permit for a portable generator if you’ll be installing a transfer switch for your primary residence or similar work. Otherwise, a permit for other uses may not be necessary. Check your local building codes or ask a local generator installer for more information about your local regulations.

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.

Natural gas and electricity rates vary significantly based on location, and pricing can change over time, too. It’s possible that in locations where natural gas is particularly inexpensive, it will cost less than grid-based electricity will. However, you should also factor in the generator’s initial costs and maintenance needs, as well as its noise level and if it can comfortably power all your home appliances.

Generators run on a variety of fuel types, ranging from natural gas to solar power. Keep in mind that fuel costs varying by type:

  • Natural gas: $2,000–$21,000 per year 

  • Liquid propane: $2,000–$21,000 per year

  • Diesel: $3,000–$20,000 per year

  • Gasoline: $500–$3,000 per year

  • Solar generator: $2,000–$25,000 per unit

  • Battery backup: $10,000–$25,000 per unit

The Colona, 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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