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Verified Reviews for Generator Install pros in Rosemont, IL

*The Angi rating for Generator Install companies in Rosemont, 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 Rosemont, 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 September 02, 2026

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

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

Serving Rosemont, 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
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Avatar for Your IT Guy
Your IT Guy
4.7(
47
)
Portable Generator - Install

Serving Rosemont, IL and surrounding areas

Approved

Super Service Award Winner

In business since 2002

Free estimates

Warranties offered

"Did everything as agreed & they were great to work with and got my charger installed very quickly. thanks!"
Response time6 hrs
6 neighbors recently requested a quote
Recommended by78%of homeowners
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Avatar for Four Seasons Heating & Air Conditioning
Four Seasons Heating & Air Conditioning
4.3(
3,298
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Rosemont, IL and surrounding areas

Approved (Corporate)

In business since 1971

Free estimates

Emergency services offered

"Four Season service was awesome. The installers were friendly, professional, and knowledgeable. The installers cleaned up work area after they finished the job."
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 Bright Room Electric, Inc.
Bright Room Electric, Inc.
5.0(
21
)
Fixed Generator - Install

Serving Rosemont, IL and surrounding areas

Approved

Super Service Award Winner

In business since 2007

Free estimates

Emergency services offered

"Excellent work. Our company electrician moving forward"
Outdoor Lighting
Outdoor Lighting
Outdoor Lighting
Outdoor Lighting
Outdoor Lighting

+43

Response time10 hrs
Response rate93%
155 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 Rosemont, IL and surrounding areas

Approved

In business since 2018

Free estimates

Credit card accepted

"Fabian came to my home on a Friday afternoon and came the next Monday morning He is curtious. I had him connect an outside camera creating a new outlet. He also added low voltage lights to my back yard I would recommend if you have any electrical needs to call Onex Electric and have Fabian come out to see your needs I promise you’ll be pleased Jeff Gilman"
Response time12 hrs
Response rate95%
8 neighbors recently requested a quote
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Avatar for Toptec Heating, Cooling, Plumbing & Electrical, Inc.
Toptec Heating, Cooling, Plumbing & Electrical, Inc.
4.4(
615
)
Fixed Generator - InstallFixed Generator - Repair

Serving Rosemont, IL and surrounding areas

Approved

Super Service Award Winner

In business since 1993

Free estimates

Emergency services offered

"I agreed with their assessment and ordered a new Bradford White 75 gallon water heater. This is a power vent type heater with PVC exhaust vented to the outside. Two plumbers (and a part-time helper for moving the old and new heavy tanks) installed it the next day and did an excellent job. The plumbing is all "plumb" and properly done."
Duct Cleaning Before/After
Additional Photos
Additional Photos
Barrington Geothermal Lake Heat Exchangers
Barrington Geothermal - WaterFurnace Geothermal Heating/Cooling Systems with Desuperheaters

+48

Response time1 day
Response rate100%
10 neighbors recently requested a quote
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CERTIFIED ELECTRIC LLC
5.0(
6
)
Fixed Generator - InstallPortable Generator - Install

Serving Rosemont, 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%
1 neighbors recently requested a quote
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...
Showing 1-10 of 147
Generator Install FAQs, answered by experts

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.

No, you should never plug a generator directly into a wall outlet in your house. This practice is extremely dangerous, often illegal, and can cause "back-feeding," where power from the generator flows back into utility lines, creating a life-threatening hazard for utility workers. It can also damage your home's electrical system, including appliances like pumps and HVAC fans. If the main power is restored while the generator is connected, it can destroy the generator and cause an electrical fire. To safely connect a generator, you must use a professionally installed transfer switch or an interlocking kit, which prevents back-feeding by disconnecting your home from the utility grid before the generator provides power.

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.

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.

Yes, natural gas generators can work without electricity. Natural gas generators are a common type of backup or whole-house generator that operates when the electrical grid isn’t working. The trick is using a transfer switch (which usually needs to be installed with the generator) that safely switches the home electrical system from the power grid to generator power when needed.

The Rosemont, 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