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TRUSTED BY LEMONT, IL HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon21
    Verified generator installs reviews

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

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

Serving Lemont, IL and surrounding areas

Approved

In business since 1999

Free estimates

Emergency services offered

"I'm very satisfied with his work. I had used him for 16 years and I had him install two different generators. I never had any problems at all and he is very responsive; that is why I have recommended him before."
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
Avatar for Tri-State Water, Power & Air
Tri-State Water, Power & Air
5.0(
5
)
Fixed Generator - InstallGenerator - InstallGenerator - Install - For Business

Serving Lemont, 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.

Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+3

17 neighbors recently requested a quote
VACA ELECTRICAL CONTRACTING & CONSTRUCTION, CORP.
4.8(
31
)
Fixed Generator - Install

Serving Lemont, IL and surrounding areas

Approved

In business since 2008

Free estimates

Credit card accepted

We take on a wide range of electrical projects to include full installation for additions and remodels as well as generator installs, wiring and panel upgrades, and a variety of other jobs. We take pride in our quality of work and our commitment to outstanding results. We are committed to providing a personalized service for each individual project we take on. We look forward to building strong, long-term relationships with our clients and guarantee your satisfaction.

1 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for Onix Electric Services LLC
Onix Electric Services LLC
5.0(
13
)
Fixed Generator - RepairPortable Generator - InstallPortable Generator - Repair

Serving Lemont, IL and surrounding areas

Approved

In business since 2018

Free estimates

Credit card accepted

"Fabian (the electrician) was an absolute professional. I let him know what I needed and he provided me with several options on how to get the task completed within code. He provided me with a specific timetable, which was great for me because it allowed me to work around my work schedule. Once the job was finished, it was as if he was never there. Everything was cleaned up and put back the way it was when he initially arrived. Highly, highly recommended!!!"
Response time12 hrs
Response rate95%
8 neighbors recently requested a quote
CERTIFIED ELECTRIC LLC
5.0(
6
)
Fixed Generator - InstallPortable Generator - Install

Serving Lemont, IL and surrounding areas

Approved

In business since 2019

Emergency services offered

Offers commercial services

Certified Electric is a licensed, bonded, and insured electrical contractor dedicated to providing safe, reliable, and high-quality electrical services.\n\nWe specialize in residential electrical work, including panel upgrades and EV charger installations.\n\nOur mission is to deliver honest service, expert craftsmanship, and lasting solutions while treating every customer’s home with the care and professionalism it deserves.\n\nLet’s Make It Happen. ⚡

My jobs
My jobs
My jobs
My jobs
My jobs

+2

Response time1 hour
Response rate89%
Recommended by16%of homeowners
Avatar for M.T. Kelley Electric LLC
M.T. Kelley Electric LLC
5.0(
4
)
Generator - Install - For Business

Serving Lemont, IL and surrounding areas

Approved

In business since 1994

Warranties offered

Credit card accepted

"Hello, MTK electric was fantastic to deal with, their communication was top notch, they were very transparent about the entire process and the overall price was fair. Would definitely look for their assistance in the future."
Response time8 hrs
Response rate99%
3 neighbors recently requested a quote
Avatar for Mister Sparky of South Chicagoland
Mister Sparky of South Chicagoland
5.0(
5
)
Fixed Generator - Install

Serving Lemont, IL and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

Mister Sparky of South Chicagoland proudly serves homeowners throughout the City of Chicago and the surrounding south suburbs. Our team is committed to providing safe, reliable electrical service with exceptional professionalism and attention to detail. Whether you need a quick repair, panel upgrade, lighting installation, or a larger project, we stand behind our work with a customer satisfaction guarantee. For added convenience, financing options are available for qualifying projects. Contact us today — we look forward to earning your business.

3 neighbors recently requested a quote
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Generator Install FAQs, answered by experts

Here’s what you can run with different wattages and types of generators:

Portable generator:

  • 2,000 watts can handle a large appliance like a freezer or refrigerator, plus a few smaller items like phones or computer chargers. 

  • 4,000 watts will keep two large appliances operating and a few smaller devices.

  • 8,000 watts should power most essential appliances and other devices, including a sump pump, well pump, or your dishwasher.

Partial to whole-house generator:

  • 20,000 watts and above will make it seem like your home’s power is still on.

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

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.

Generally, you’ll want to keep between 60 and 70 feet between the generator and the transfer switch. There are a few reasons for this, including:

  • The distance reduces the noise coming from the generator into your home.

  • It increases efficiency because you won’t have a voltage drop from this short of a distance.

  • Prevents carbon monoxide poisoning: keep at least 15 feet between your generator and an open window. 

To reduce AC startup power for a whole-house generator, install a soft start kit or hard start capacitor, which lowers the initial surge by gradually ramping up the compressor. Using a smart load manager can also help by staggering startup loads, preventing a system overload and future costly repairs.

The Lemont, IL homeowners’ guide to generator installs

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