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Verified Reviews for Generator Install pros in Litchfield, IL

*The Angi rating for Generator Install companies in Litchfield, 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 Litchfield, 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 April 14, 2026

Find Generator install pros in Litchfield

Avatar for Tri-State Water, Power & Air
Tri-State Water, Power & Air
4.8(
37
)
Fixed Generator - Install

Serving Litchfield, IL and surrounding areas

Approved

In business since 1993

Free estimates

Emergency services offered

"Kelly installed a new toilet for us. He did a superb job and he deserves a raise. He has such a great attitude. He is a keeper & again, he deserves a raise!! And I am not his mother or grandmother."
My jobs
My jobs
My jobs
My jobs
My jobs

+3

53 neighbors recently requested a quote
Recommended by97%of homeowners
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Avatar for Tiger Services, LLC
Tiger Services, LLC
3.3(
249
)
Fixed Generator - InstallFixed Generator - Repair

Serving Litchfield, IL and surrounding areas

In business since 1993

Emergency services offered

Warranties offered

"both certified plumbers were GREAT today...glad things were fixed under my manufactured home,,,puts me more at ease....different Tiger guys will be here on Thursday to fix something else under ,y home....ALWAYS like the way the Tiger guys do their work. Chyrel W"
November 2020 Project
Does Your Crawlspace Look Like This?
Without Spray Foam Barrier
With Spray Foam Barrier
Without Tiger Signature Drainage Matting

+27

Response time1 day
Recommended by79%of homeowners
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Avatar for Solis handyman
Solis handyman
3.9(
9
)
Fixed Generator - InstallFixed Generator - RepairPortable Generator - Install+1 more

Serving Litchfield, IL and surrounding areas

Emergency services offered

Warranties offered

Small jobs welcome

"I ordered a Murphy bed from Wayfair that was far more difficult for me to assemble than I thought. Jehu Solis provided a reasonable bid, arrived on time, worked diligently, and, most importantly, did a fantastic job. I would rehire him again."
Ceiling drywall patch
Window frame repair
Window frame repair
11 neighbors recently requested a quote
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Big Patriot Home Remodeling
New to Angi
Generator - Install - For Business

Serving Litchfield, IL and surrounding areas

In business since 2020

Free estimates

Emergency services offered

Big Patriot Home Remodeling is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business.

Response time20 mins
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Sloan Commercial Services, LLC
New to Angi
Fixed Generator - InstallFixed Generator - RepairPortable Generator - Install

Serving Litchfield, IL and surrounding areas

In business since 2010

Offers commercial services

Welcome to Sloan Commercial Services! We are committed to exceeding your expectations. As experts, we will handle your needs with the high quality expertise, that your home or business deserves. We offer competitive prices, and customer satisfaction is our number one priority. Call us now!

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Generator Install questions, answered by experts

In some situations, yes. Never try to put biofuel into any home generator without checking the specifics first. If a generator has the ability to run on diesel, it can also run pure biofuel (the clear kind made from seed oils, for example). But if you are using biofuel made from animal fats or vegetable oils, the generator will need significant modifications before it can handle a sludgier type of biofuel.

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.

Generators are usually sized by running watts and starting watts. Ideally, you’ll want a generator that can offer both the necessary running watts and starting watts for everything you need to power without going beyond 90% of its capacity. Calculate your home’s electrical load based on the breakers in your home or adding up the appliance and lighting needs of connected rooms.

It might seem counterintuitive, but installing a generator transfer switch will save you money in the long run. While you’ll have to pay between $400 and $2,500 to have the transfer switch installed, you’ll recoup that amount later on when you don’t have to pay for expensive repairs to your appliances, devices, and electrical system that may have burned out, overloaded, or stopped working due to a sudden loss of power or an incorrect hook up of a generator to your home. 

While standby generators provide essential backup power, they can fail when you need them most due to lack of maintenance, fuel supply issues, dead batteries, electrical problems, or improper installation. To avoid costly failures, professional installation and regular maintenance are crucial. Licensed technicians ensure safety, uphold warranty requirements, comply with regulations, and provide expert servicing.

The Litchfield, 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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