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Verified Reviews for Generator Install pros in Diamond, IL

*The Angi rating for Generator Install companies in Diamond, 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 Diamond, 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 May 03, 2026

Find Generator install pros in Diamond

Avatar for Tri-State Water, Power & Air
Tri-State Water, Power & Air
5.0(
5
)

Serving Diamond, 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.

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+3

48 neighbors recently requested a quote
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Avatar for No Static Electricity
No Static Electricity
5.0(
27
)

Serving Diamond, IL and surrounding areas

Approved

Super Service Award Winner

In business since 2009

Free estimates

Warranties offered

"Great work! Came out of his way on an off day to help with my power being out. Did good work and had my power back on in the same day. He is very knowledgeable and very straight up about what he might have to do, what he needs, and what his time frame is like. If you're looking for a trustworthy no BS Electrician call No Static Electricity!!"
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+6

Response time1 day
24 neighbors recently requested a quote
Recommended by76%of homeowners
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Avatar for Flowing Through Connections, Inc.
Flowing Through Connections, Inc.
4.9(
28
)

Serving Diamond, IL and surrounding areas

Approved

In business since 2000

Emergency services offered

Credit card accepted

"Ralph and Ralph Jr were a pleasurer to work with. They did a great job installing TVs and mounts at all of your medical clinics. They were very responsive to all of our questions and gave us exactly what we were looking for. They stand by their work and will make sure everything is done to your satisfaction. I would hire them again for any other installation, electrical, or networking work we need for our business."
Fusion5 Cellphone Signal Booster
2-Way Antenna Splitter
Yagi - Outside Antennas. Pole mounted to A/C
Yagi - Outside Antennas. Pole mounted
Telephone/Network Equipment

+8

Response time5 hrs
4 neighbors recently requested a quote
Recommended by88%of homeowners
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Avatar for Julio Marroquin
Julio Marroquin
5.0(
13
)

Serving Diamond, IL and surrounding areas

Approved

In business since 2017

Free estimates

Small jobs welcome

"Found Julio through a friend had a couple estimates done before hand but was either overestimated or no shows Julio came out the same week and finished before the expected time. Top guy for sure he carries his quality in his work. 10/10 highly recommend"
Response time1 hour
Response rate100%
1 neighbors recently requested a quote
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Avatar for Mid America Lightning Protection
Mid America Lightning Protection
4.5(
99
)

Serving Diamond, IL and surrounding areas

Approved

In business since 1969

Free estimates

Emergency services offered

"Absolutely one of the best companies I have ever hired. Quick response to my inquiry to have a lightning protection system installed on my house. They showed up literally the next day and had the job done within a few hours. Professional installation at its finest. Price was more than fair and the owner is very knowledgeable and works hard to earn your business highly recommended"
Indianapolis
Trucking company
Indianapolis
Indiana Illinois
Indiana Illinois

+70

Response time6 hrs
Response rate94%
3 neighbors recently requested a quote
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Avatar for Express Electric
Express Electric
4.8(
18
)

Serving Diamond, IL and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"I hired Raul to install outdoor outlets for an exterior kitchen, the work was done cleanly and professionally. I was so pleased with the quality and reliability that I rehired him for one of my rental properties to install additional outlets in each bedroom in an older house. Both jobs were completed efficiently, and communication was clear and throughout. I would definitely recommend him and would hire him again for future projects."
6 neighbors recently requested a quote
Recommended by11%of homeowners
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Avatar for Mr Electric of the Western Suburbs
Mr Electric of the Western Suburbs
3.5(
506
)

Serving Diamond, IL and surrounding areas

Approved

In business since 1994

Free estimates

Emergency services offered

"He came prepared to do the job and talked to us about the lighting options.  Once decided he went and bought the lighting fixture, returned and efficiently installed them.  Great job."
Under cabinet lighting
Island lights
Ceiling fan
Ceiling lights
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+8

58 neighbors recently requested a quote
Recommended by84%of homeowners
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Showing 1-10 of 139
Generator Install questions, answered by experts

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.

The cost to install a whole-house generator averages $5,200, with a typical price range of $1,500 to $8,900. However, total costs can vary from $400 for a small portable unit to over $18,000 for a large-capacity system. The most significant cost factor is the generator's size and capacity, but other variables include the brand, fuel type, and labor for assembly and installation.

Generator costs can be broken down by type:

  • Portable or Emergency Backup Generators (1kW–7.5kW): $500 to $2,000

  • Partial-Home Generators (9kW–20kW): $2,000 to $6,500

  • Whole-House Generators (22kW–48kW): $5,000 to $18,000

To avoid paying for more power than you need, consider hiring an electrician to calculate the electrical load for your essential appliances. It is also recommended to get at least three quotes to find the best deal for your specific needs and budget.

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.

Yes, in some locations, it is required by the National Electric Code (NEC) to have a transfer switch installed for electrical emergencies. In addition to following electrical code, generator transfer switches ensure your home is fully protected during a power outage. By switching the power from the main breaker to the generator breaker, you can seamlessly operate your HVAC, lights, appliances, devices, and more during an emergency. 

You can expect a diesel generator to last for up to 30,000 hours of use, which works out to 20 to 25 years with the proper maintenance, of course. That depends on how much you use it, so a diesel generator used for emergencies a couple of times a year will last a lot longer than a generator that takes over for a faulty electrical grid every month for a day or two. 

The Diamond, 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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