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Verified Reviews for Generator Install pros in Energy, IL

*The Angi rating for Generator Install companies in Energy, 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 Energy, 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 November 05, 2025

Top-Rated Generator install pros in Energy - Updated Nov 2026

Avatar for Holtzclaw Electric
Holtzclaw Electric
4.6(
10
)
Fixed Generator - InstallGenerator - Install - For BusinessGenerator - Repair - For Business+1 more

Serving Energy, IL and surrounding areas

Approved

In business since 2009

Credit card accepted

Offers commercial services

"Call this electrician! He s worth your call, don t wait for him to call you! He was fair, honest and went above and beyond our expectations. We got two other quotes, one being from another company (Service detectives) who charged us $89 for a QUOTE and then quoted us $19k for everything we wanted done. For the things we needed done (not the whole house but a new meter outside, wiring to the inside, new panel and several outlets rewired) Holtzclaw Electric did for 3 times less than S.D. Just call Brandon. You won t regret it."
Response time2 hrs
Recommended by90%of homeowners
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Avatar for Inventors Imaginarium
Inventors Imaginarium
New to Angi
Portable Generator - Repair

Serving Energy, IL and surrounding areas

Approved

Free estimates

Emergency services offered

Small jobs welcome

We take pride in delivering dependable, high-quality craftsmanship with honest communication from start to finish. Whether you're planning a small repair or a larger renovation, our goal is to provide durable, professional results that improve the value, function, and appearance of your property.\n\nOur services include residential construction, remodeling, repairs, renovations, demolition, framing, drywall, flooring, painting, trim and finish carpentry, deck and porch work, fencing, siding, roofing repairs, door and window installation, and general handyman services. We also handle property improvements, rental property maintenance, and custom projects tailored to your needs.\n\nEvery project is completed with attention to detail, quality materials, and a commitment to doing the job right the first time. We believe in treating every home as if it were our own by maintaining a clean worksite, respecting your property, and keeping you informed throughout the project. \n\nChoose us today!

4 neighbors recently requested a quote
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Avatar for 618 Electric
618 Electric
5.0(
20
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+3 more

Serving Energy, IL and surrounding areas

In business since 2017

Free estimates

Emergency services offered

"They were very professional and got the job done right, in a timely manner and to my specifications. Very pleased. Would highly recommend."
Response time8 hrs
Recommended by75%of homeowners
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Avatar for Electrical Detectives
Electrical Detectives
4.1(
9
)
Fixed Generator - InstallFixed Generator - RepairPortable Generator - Install+1 more

Serving Energy, IL and surrounding areas

In business since 1968

Warranties offered

Credit card accepted

"They were honest and told us they couldn't fix the problem. We ended up going to the dealer and having problem fixed"
New breaker box
New meter service 2012
New breaker box with surge protection
Kitchen lighting
Kitchen lighting

+1

Response time1 day
Recommended by85%of homeowners
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Avatar for West KY Home Power, LLC
West KY Home Power, LLC
0.0(
1
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+3 more

Serving Energy, IL and surrounding areas

In business since 2007

Free estimates

Emergency services offered

West KY Home Power, LLC, has been doing generator installations and service work for over 15 years. Call us today and never be without power again!

service
generators
Recommended by100%of homeowners
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Showing 1-10 of 14
Generator Install FAQs, answered by experts

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.

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.

Homeowners can often access federal tax credits, such as the Investment Tax Credit (ITC), which covers a percentage of installation costs. Many states and utilities offer additional rebates, grants, or performance-based incentives. These programs can significantly lower your upfront investment. Check the Database of State Incentives for Renewables and Efficiency (DSIRE) or contact your local energy office for current offers.

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.

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.

The Energy, 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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