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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

Verified Reviews for Generator Install pros in Prospect Heights, IL

*The Angi rating for Generator Install companies in Prospect Heights, 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 Prospect Heights, 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 March 24, 2026

Find Generator install pros in Prospect Heights

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

"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
3 neighbors recently requested a quote
Recommended by95%of homeowners
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Avatar for Mr. Electric of Highland Park
Mr. Electric of Highland Park
4.9(
46
)
Portable Generator - Install

Serving Prospect Heights, IL and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Free estimates

Warranties offered

"After talking to multiple companies, Jay from Mr.Electric showed up. He was very professional and the only one who took the time to plan what I needed. He did a great job installing new outlets and switches for my new kitchen. Ask for Jay!"
Electrical Safety
Electrical Repairs
Lighting
EV
Panel

+26

Response time7 hrs
11 neighbors recently requested a quote
Recommended by56%of homeowners
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Avatar for Imperial electric
Imperial electric
5.0(
18
)
Fixed Generator - InstallFixed Generator - RepairPortable Generator - Install

Serving Prospect Heights, IL and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

"Assessed all outlets and changed those that were improperly installed and could damage things plugged into them, and grounded the outlets that were not grounded. 19 recepticles in all. Price was good and arrived on time, and clean."
67 neighbors recently requested a quote
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Avatar for Your IT Guy
Your IT Guy
4.7(
47
)
Portable Generator - Install

Serving Prospect Heights, IL and surrounding areas

Approved

Super Service Award Winner

In business since 2002

Free estimates

Warranties offered

"Your IT Guy did an excellent job! Chuck and Eric were professional, friendly, knowledgeable, efficient, and effective. We hired them to install several new circuits, outlets, and receptacles. They do so much more than IT! Hire them, you won’t regret it!!"
Response time6 hrs
21 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(
3,291
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Prospect Heights, 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
33 neighbors recently requested a quote
Recommended by86%of homeowners
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Avatar for Toptec Heating, Cooling, Plumbing & Electrical, Inc.
Toptec Heating, Cooling, Plumbing & Electrical, Inc.
4.4(
614
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Prospect Heights, IL and surrounding areas

Approved

Super Service Award Winner

In business since 1993

Free estimates

Emergency services offered

"Service was excellent.  I dealt directly with Joe the President on the specifications.  He gave me a number of options at different efficiencies and price points.  The work was preformed the 3 first days of Thanksgiving week.  All work was performed in a timely and professional manner.  The installers took care to highlight the efficiency of the new system and walked me through operation and maintenance.  My family is very pleased with the result.
"
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%
2 neighbors recently requested a quote
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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 Prospect Heights, 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 time12 hrs
Response rate95%
6 neighbors recently requested a quote
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Avatar for Gold Shield Services, Inc.
Gold Shield Services, Inc.
4.9(
23
)
Fixed Generator - InstallFixed Generator - Repair

Serving Prospect Heights, IL and surrounding areas

Approved

In business since 2006

Free estimates

Emergency services offered

"Damian installed 6 can lights, was on time, professional, explained everything and cleaned up well."
New meter box
Siemens Panel
Riser
New panel
New grounding

+3

Response time4 hrs
Response rate92%
55 neighbors recently requested a quote
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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%
2 neighbors recently requested a quote
Request Quote
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Generator Install questions, answered by experts

Sizing a generator is a careful process that requires calculating the electrical load of your entire house. You have to take into account every device you want to use and their wattage requirements, plus the wattage needed to start them, and look for a generator that can safely run all that at around 80% capacity.

In more practical terms, a small home can run on a 10,000-watt generator (and if you only want to power a few key appliances, much less than that). A mid-sized home may need something between 15,000 and 22,000 watts. Larger homes require 25,000 watts or more. 

Energy output depends on turbine size, average wind speed at your site, and system efficiency. A 5 kW turbine in a good wind location can generate 8,000 to 12,000 kilowatt-hours per year, which may cover a large portion of an average home’s needs. Accurate output estimates require a professional wind assessment and a review of your household’s energy usage patterns.

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.

In many cases, yes. There are models called dual-fuel generators and fuel switches, but only between certain types of fuel. For example, with the right setup you can convert a generator from natural gas to propane. Some allow switching between diesel and gasoline. There are even tri-fuel generators available in some cases, which adds a large layer of security if you are worried about fuel availability in times of crisis. Always check your generator capabilities and manual instructions before trying to switch fuels. Some generators can use another fuel but may need a fuel conversion kit to prep them first.

It’s usually better to repair your generator if it isn’t working properly, as it will typically be much more affordable and should yield similar results. Generator repairs cost around $300 on average, while installing a new whole-house generator costs around $5,000 on average. The only exception is if you know your generator is reaching the end of its useful life, usually between 30 and 40 years. If you have an older generator, you could face multiple repairs in the coming years, which might mean that a full replacement will be more cost-effective over time.

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.

See all articles