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TRUSTED BY LA GRANGE, IL HOMEOWNERS

  • Average homeowner rating star icon4.8
    Average homeowner rating
  • Verified reviews icon25
    Verified generator installs reviews

Verified Reviews for Generator Install pros in La Grange, IL

*The Angi rating for Generator Install companies in La Grange, 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 La Grange, 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 October 08, 2026

Top-Rated Generator install pros in La Grange - Updated Nov 2026

Avatar for MPower Generators, Inc.
MPower Generators, Inc.
4.8(
25
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Repair - For Business

Serving La Grange, IL and surrounding areas

Approved

In business since 1999

Free estimates

Emergency services offered

"There was a mistake in the original invoice which they quickly corrected. We will engage the to annually maintain our generator."
Powered by MPower Generators
Power outages are a thing of the past.
Gravel base
Gravel base needs to be compacted
Prefabricated cement pad

+8

Response time1 day
2 neighbors recently requested a quote
Recommended by95%of homeowners
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Avatar for Precision Today Plumbing Heating Cooling Electrical
Precision Today Plumbing Heating Cooling Electrical
4.6(
329
)
Fixed Generator - InstallFixed Generator - Repair

Serving La Grange, IL and surrounding areas

Approved (Corporate)

In business since 1992

Emergency services offered

Warranties offered

"Installer was knowledgeable explained the installation process and different cost/warranty prices. Clean and efficient."
Pipe Coating
Pictures
Pictures
Pictures
Pictures

+13

Response time10 hrs
Response rate100%
30 neighbors recently requested a quote
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Avatar for AGE Electric
AGE Electric
5.0(
14
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving La Grange, IL and surrounding areas

Approved

In business since 2004

Free estimates

Emergency services offered

"Ariel installed 50 amp inlet to my breaker box for portable generator. He completely cleaned up the breaker box. Separated rooms to different breakers so I can turn off rooms i don't use. He was extremely thorough in his work. Upon finishing installation, Ariel stayed on his own time and explained everything i needed to know about using generator and which breakers to use if i have a power outage. He was very knowledgeable and made sure i understood before he would leave. I highly recommend ACG based on my experience with his work ethic. Thank you Ariel!"
1 neighbors recently requested a quote
Recommended by30%of homeowners
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Avatar for Four Seasons Heating & Air Conditioning
Four Seasons Heating & Air Conditioning
4.3(
3,299
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving La Grange, IL and surrounding areas

Approved (Corporate)

In business since 1971

Free estimates

Emergency services offered

"Had a heat pump installed. The installation went well. The installers were efficient, courteous and professional. Job well done."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Response time9 hrs
44 neighbors recently requested a quote
Recommended by86%of homeowners
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Avatar for Electric Work Force
Electric Work Force
4.9(
25
)
Fixed Generator - Install

Serving La Grange, IL and surrounding areas

Approved

In business since 2016

Free estimates

Emergency services offered

"The technician was very tidy and efficient in completing the installation."
Installed a beautiful chandelier
Installed a beautiful chandelier
Additional Photos
Additional Photos
Additional Photos

+11

25 neighbors recently requested a quote
Recommended by69%of homeowners
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Avatar for Bright Room Electric, Inc.
Bright Room Electric, Inc.
5.0(
21
)
Fixed Generator - Install

Serving La Grange, IL and surrounding areas

Approved

Super Service Award Winner

In business since 2007

Free estimates

Emergency services offered

"Did some great work installing electric outlets in my store to plug in the electric products that I sell."
Outdoor Lighting
Outdoor Lighting
Outdoor Lighting
Outdoor Lighting
Outdoor Lighting

+43

Response time10 hrs
Response rate93%
149 neighbors recently requested a quote
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Avatar for Onix Electric Services LLC
Onix Electric Services LLC
5.0(
13
)
Fixed Generator - RepairPortable Generator - InstallPortable Generator - Repair

Serving La Grange, IL and surrounding areas

Approved

In business since 2018

Free estimates

Credit card accepted

We have the experience and we are committed to providing quality workmanship and superior customer service on all our applications. We at Onix Electric Service LLC strive to maintain our reputation as a high quality, very service oriented company with our main focus being customer satisfaction.

Response time12 hrs
Response rate95%
8 neighbors recently requested a quote
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Avatar for EV Electric
EV Electric
4.8(
22
)
Portable Generator - Install

Serving La Grange, IL and surrounding areas

Approved

In business since 2018

Free estimates

Credit card accepted

"This was an install of a garbage disposal in an existing home. Since the dishwasher and sink plumbing was already in place, the installer had to determine the best routing for the install. He came up with a good route very a successful install."
Response time5 hrs
Response rate88%
Recommended by90%of homeowners
Request Quote
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Showing 1-10 of 151
Generator Install FAQs, answered by experts

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.

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

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.

Many services include assembling the unit and securing it in the window. Confirm with your provider.

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.

The La Grange, 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