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TRUSTED BY LONG GROVE, IL HOMEOWNERS

  • Average homeowner rating star icon4.9
    Average homeowner rating
  • Verified reviews icon29
    Verified generator installs reviews

Verified Reviews for Generator Install pros in Long Grove, IL

*The Angi rating for Generator Install companies in Long Grove, 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 Long Grove, 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 August 07, 2025

Top-Rated Generator install pros in Long Grove - Updated Nov 2026

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

Serving Long Grove, 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 Tri-State Water, Power & Air
Tri-State Water, Power & Air
5.0(
5
)
Fixed Generator - InstallGenerator - InstallGenerator - Install - For Business

Serving Long Grove, 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
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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 Long Grove, 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 Mr. Electric of Highland Park
Mr. Electric of Highland Park
4.9(
56
)
Portable Generator - Install

Serving Long Grove, IL and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Free estimates

Warranties offered

"Installed a ceiling fan and a light. Brandon was efficient. I would use them again."
Electrical Safety
Electrical Repairs
Lighting
EV
Panel

+26

Response time7 hrs
10 neighbors recently requested a quote
Recommended by56%of homeowners
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Avatar for AGI Lab, Inc.
AGI Lab, Inc.
5.0(
24
)
Fixed Generator - Install

Serving Long Grove, IL and surrounding areas

Approved

In business since 2018

Free estimates

Warranties offered

"Anton did a perfect job! Was on time, came prepared, installed recessed lighting as requested, repaired some broken switches and cleaned up with not a trace of dust remaining - all expertly done. Price reasonable; v professional and a v nice person. EXCELLENT experience. HIGHLY recommend his services!!!"
Kitchen and living room
Kitchen
Old electrical panel
New elecrical panel
New electrical panel Siemens

+7

Response time9 hrs
Recommended by100%of homeowners
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Avatar for Your IT Guy
Your IT Guy
4.7(
47
)
Portable Generator - Install

Serving Long Grove, IL and surrounding areas

Approved

Super Service Award Winner

In business since 2002

Free estimates

Warranties offered

"Did a good job installing 2 lights for pool. Would hire again."
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 Long Grove, 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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Musial Electric
4.6(
98
)
Fixed Generator - InstallPortable Generator - Install

Serving Long Grove, IL and surrounding areas

Approved

In business since 1996

Free estimates

Credit card accepted

"18 ceiling recessed lights and dimmer switch were installed in two zones in one day with virtually no damage to the ceiling where no lights were previously installed. Wonderful service, great clean up and at a price extremely reasonable. I will highly recommend Musial Electric to everyone."
Response time8 hrs
3 neighbors recently requested a quote
Recommended by97%of homeowners
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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 Long Grove, 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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Showing 1-10 of 131
Generator Install FAQs, answered by experts

Whole-house generators need to be installed on level ground several feet away from walls and other objects. Because they tap into the electrical system directly, they usually need to be close to your home electrical panel for a transfer switch installation. It also helps with installation if they are near to a gas line or propane tank installation.

In most municipalities, you will need a permit to install a permanent home generator, including emergency backup, partial-home, and whole-home generators. A permit for a generator usually costs between $50 and $250, depending on where you live. Your electrician or certified generator installer will usually pull the permit for you—and might be required to do so by your building department—but you’ll be on the hook for the cost of the permit. You should ask your installer before agreeing to any work if they will pull the necessary permits for your project.

Whole-house generators can run continuously for extended periods, even for weeks at a time (around 400 to 500 hours), as long as they have a sufficient fuel supply. However, this type of extensive use will increase wear and tear and can shorten the generator's overall lifespan. During long periods of operation, it's important to check and refill the engine oil as needed, potentially as frequently as daily depending on the model. If your generator uses a fuel tank, ensure it is kept full to prevent unexpected shutdowns.

While diesel is relatively stable, it won’t last nearly as long as propane and you may have to replace it if it sits unused for too long. Diesel can sometimes struggle to work efficiently or start engines during especially cold weather, so it’s not the best choice for every climate. Compared to fuels like propane and natural gas, diesel generators tend to be noisier and create more exhaust, which isn’t always ideal for home use.

A 10,000-watt generator can run a small to mid-sized central AC unit (typically up to 3 tons or 36,000 BTU) along with a few other appliances. However, larger AC units or additional loads will require a bigger generator. Consult a local generator installer to ensure you add the correct size generator to your home.

The Long Grove, 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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