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TRUSTED BY DARIEN, IL HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon37
    Verified generator installs reviews

Verified Reviews for Generator Install pros in Darien, IL

*The Angi rating for Generator Install companies in Darien, 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 Darien, 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 29, 2025

Find Generator install pros in Darien

Avatar for Rob - Lynn Power Generators, LLC
Rob - Lynn Power Generators, LLC
4.4(
31
)
Fixed Generator - InstallPortable Generator - RepairFixed Generator - Repair+4 more

Serving Darien, IL and surrounding areas

Approved

Super Service Award Winner

In business since 2004

Emergency services offered

Warranties offered

"I have been looking for a reasonably priced generator repair company for some time. The person who answered the phone was extremely courteous and seemed to go out of her way to help me with my service needs. Within 30 minutes the owner called back and based on my description of the problem was able to suggest a simple fix over the phone that I could do and which solved my problem. I will definitely call them for all my future needs."
Additional Photos
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+26

9 neighbors recently requested a quote
Recommended by100%of homeowners
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Avatar for MPower Generators, Inc.
MPower Generators, Inc.
4.8(
25
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Repair - For Business

Serving Darien, 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
4 neighbors recently requested a quote
Recommended by95%of homeowners
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Specialty Service Corp.
5.0(
26
)
Fixed Generator - RepairGenerator - Repair - For Business

Serving Darien, IL and surrounding areas

Approved

In business since 2002

Free estimates

Offers commercial services

"One of the nicest to deal with. Joe was amazing. Very thorough and very knowledgeable with his generator install. I would recommend him over and over and I do it everytime someone needs a generator installed and serviced. I would come back to him any day for another install in the future."
Response time1 day
Recommended by100%of homeowners
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Avatar for Tri-State Water, Power & Air
Tri-State Water, Power & Air
5.0(
5
)
Fixed Generator - InstallGenerator - InstallGenerator - Install - For Business

Serving Darien, 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
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+3

39 neighbors recently requested a quote
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Avatar for GLP Electric
GLP Electric
5.0(
32
)
Generator - Install - For Business

Serving Darien, IL and surrounding areas

Approved

Super Service Award Winner

In business since 2020

Free estimates

Emergency services offered

"Carlos did a great job installing new flood lights on my garage! Carlos was also very respectful and professional."
Expert electric remodeling service
the freshly revamped bathroom, the first noticeable enhancement is the pristine lighting setup. To the right of the sink, embedded within a white sleek plate, lies the GFCI outlet
Tesla Wall Charger
Kitchen Lighting Upgrade
Foyer Lighting Replacement

+88

3 neighbors recently requested a quote
Recommended by59%of homeowners
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Avatar for Imperial electric
Imperial electric
5.0(
17
)
Fixed Generator - InstallFixed Generator - RepairPortable Generator - Install

Serving Darien, IL and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

"The service guy came out very quickly. Had a smart thermostat installed. He walked me through setting up the app. Did a fast and a great job. I highly recommend this company if you want it done and done right."
156 neighbors recently requested a quote
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Avatar for Top Grade Electric, CO
Top Grade Electric, CO
4.8(
20
)
Fixed Generator - InstallGenerator - Install - For Business

Serving Darien, IL and surrounding areas

Approved

In business since 2014

Free estimates

Emergency services offered

"Steven and his guys upgraded my breaker panel and installed an EV charger. Communication was great and installation was quick while maintaining high quality work. All this for a reasonable price."
Basement Remodel
Basement Remodel
Shower lights
General lighting
Cabinet lighting

+35

5 neighbors recently requested a quote
Recommended by45%of homeowners
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Avatar for Four Seasons Heating & Air Conditioning
Four Seasons Heating & Air Conditioning
4.3(
3,284
)
Fixed Generator - InstallPortable Generator - InstallFixed Generator - Repair+4 more

Serving Darien, 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
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30 neighbors recently requested a quote
Recommended by87%of homeowners
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Avatar for Mr. Electric of Lombard
Mr. Electric of Lombard
4.3(
26
)
Fixed Generator - InstallPortable Generator - Install

Serving Darien, IL and surrounding areas

Approved

Super Service Award Winner

In business since 1994

Free estimates

Emergency services offered

"Great. The electrician was extremely helpful and spent the time to make sure his estimate would be sufficient. He checked his assumptions to make sure they were executable. I would definitely hire again."
Exterior light fixture.
Ev Charger
Interior lighting and switches.
Exterior light fixture.
Interior lighting and switches.

+19

6 neighbors recently requested a quote
Recommended by66%of homeowners
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Avatar for Onix Electric Services LLC
Onix Electric Services LLC
5.0(
12
)
Fixed Generator - RepairPortable Generator - InstallPortable Generator - Repair

Serving Darien, IL and surrounding areas

Approved

In business since 2018

Free estimates

Credit card accepted

"Fabian is a true professional. His communication during the walk-through and paperwork laying out the job was fabulous. Even better was his workmanship and clean up upon completion. Would recommend him to anyone looking for an electrician! Worth every penny!"
Response time1 day
Response rate92%
5 neighbors recently requested a quote
Request Quote
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Showing 1-10 of 126
Generator Install questions, 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.

Costs depend on generator type, labor, and additional wiring or transfer switch requirements.

The amount of time a standby generator can run continuously is around 3,000 hours on average. However, standby generators can generally run indefinitely as long as they have a continuous fuel supply. Generators hooked up to a home’s natural gas supply are the best option for extended usage, as these won’t rely on a finite fuel supply based on how much you have in storage. Generators running on liquid propane or diesel won’t last as long, as these require fuel storage and regular refueling to stay running.

Portable generators provide backup power for essential appliances during outages and are easy to relocate.

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.

The Darien, 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