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TRUSTED BY PROSPECT HEIGHTS, IL HOMEOWNERS

  • Average homeowner rating star icon4.2
    Average homeowner rating
  • Verified reviews icon33
    Verified generator installs reviews

Top-Rated Generator install pros in Prospect Heights - Updated Nov 2026

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

Serving Prospect Heights, IL and surrounding areas

Approved

In business since 1999

Free estimates

Emergency services offered

"Outstanding experience. On time, took the time to educate me on the required maintenance of my 3-year old generator. Also installed remote monitoring hardware and tested it for me. Will use again."
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
NWI Generator
4.3(
19
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Prospect Heights, IL and surrounding areas

Approved

In business since 2002

Free estimates

Emergency services offered

"Very polite and professional crew. They knew what they were doing. There was a slight snag during the final check of the generator due to the manufacturers wiring error. They corrected the manufacturers wiring problem and stayed until I was satisfied. It took them extra time but they didn't complain and said they would stay until the job was completed to my satisfaction!"
6 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Mr. Electric of Highland Park
Mr. Electric of Highland Park
4.9(
49
)
Portable Generator - Install

Serving Prospect Heights, IL and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Free estimates

Warranties offered

Whether you need electrical services for your Lake and Cook County business or home, Mr. Electric of Highland Park has the perfect solution. You can trust our expert electricians to save your Northbrook, Highland Park, Deerfield, Wheeling area homes and businesses plenty of money. From installation to upgrades, we do it all. Contact Mr. Electric to make your life easier and your pockets fuller. We take pride in serving local businesses and neighbors.\n\nCheck out our reviews https://mrelectric.com/highland-park/customer-testimonials\n\nWe are licensed in Lake and Cook Counties\n

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+52

2 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Onix Electric Services LLC
Onix Electric Services LLC
5.0(
13
)
Fixed Generator - RepairPortable Generator - InstallPortable Generator - Repair

Serving Prospect Heights, 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%
9 neighbors recently requested a quote
Avatar for Toptec Heating, Cooling, Plumbing & Electrical, Inc.
Toptec Heating, Cooling, Plumbing & Electrical, Inc.
4.4(
615
)
Fixed Generator - InstallFixed Generator - Repair

Serving Prospect Heights, IL and surrounding areas

Approved

Super Service Award Winner

In business since 1993

Free estimates

Emergency services offered

"Top Tec replaced our furnace, air conditioning condenser and installed a new air filter system. Our house now has great air flow, cools and heats more quickly and efficiently, uses less energy and is overall a much quieter system."
Duct Cleaning Before/After
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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
Avatar for M.T. Kelley Electric LLC
M.T. Kelley Electric LLC
5.0(
4
)
Generator - Install - For Business

Serving Prospect Heights, 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
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Generator Install FAQs, answered by experts

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.

You can determine what size generator you need for a transfer switch by matching the switch to the largest outlet on your generator. Larger generators can power up to 10 circuits, while most 5,000-watt generators can provide power to six circuits. So, if your generator’s largest outlet is 30 amps, you’ll need a 30-amp transfer switch.

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.

You may need a permit for a portable generator if you’ll be installing a transfer switch for your primary residence or similar work. Otherwise, a permit for other uses may not be necessary. Check your local building codes or ask a local generator installer for more information about your local regulations.

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.

The Prospect Heights, IL homeowners’ guide to generator installs

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