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Verified Reviews for Generator Install pros in Illiopolis, IL

*The Angi rating for Generator Install companies in Illiopolis, 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 Illiopolis, 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 December 07, 2025

Find Generator install pros in Illiopolis

Avatar for Accent Tel USA

Accent Tel USA

4.89(
9
)
•Approved Pro

Accent Tel USA

4.89(
9
)
•Approved Pro
Customers say: Quick response
16 years of experience
Free onsite estimate

Our Company provides a one-stop solution for all of your voice, internet, and telecom needs. Leveraging the Cloud we provide your Office state-of-the-art telephones for little or no upfront cost striving to keep your monthly costs the same. Sound too good to be true? Give us a call and we will show you how.

"Telephone System - Install or Upgrade - For Business "

Anthony O on September 2025

Our Company provides a one-stop solution for all of your voice, internet, and telecom needs. Leveraging the Cloud we provide your Office state-of-the-art telephones for little or no upfront cost striving to keep your monthly costs the same. Sound too good to be true? Give us a call and we will show you how.

"Telephone System - Install or Upgrade - For Business "

Anthony O on September 2025

Tiger Plumbing, Heating, Air Conditioning, & Electrical Services

4.03(
68
)
•Approved Pro

Tiger Plumbing, Heating, Air Conditioning, & Electrical Services

4.03(
68
)
•Approved Pro
Customers say: Quick response
419 local quotes requested
32 years of experience

Tiger Plumbing, Heating, Air Conditioning, & Electrical Services takes pride in being your preferred local plumbers, electricians, and HVAC technicians! In fact, more homeowners in the St. Louis Metro East & Central Illinois communities we serve, say they would call us again before any other plumbing, electrical, heating, or air conditioning service!

"This company is outstanding. I can not sing them enough praises."

Jacqueline W on May 2025

Tiger Plumbing, Heating, Air Conditioning, & Electrical Services takes pride in being your preferred local plumbers, electricians, and HVAC technicians! In fact, more homeowners in the St. Louis Metro East & Central Illinois communities we serve, say they would call us again before any other plumbing, electrical, heating, or air conditioning service!

"This company is outstanding. I can not sing them enough praises."

Jacqueline W on May 2025

McWhorter Construction

2.00(
1
)

McWhorter Construction

2.00(
1
)
29 years of experience

We are a full service construction company, serving central Illinois, roofing, new homes, steel structures, concrete, windows Replacement windows, roofing, concrete, new homes, remodeling, bathroom, concrete, flooring, steel structures, agricultural buildings, siding, drywall ,garage packages, foundations, commercial buildings

We are a full service construction company, serving central Illinois, roofing, new homes, steel structures, concrete, windows Replacement windows, roofing, concrete, new homes, remodeling, bathroom, concrete, flooring, steel structures, agricultural buildings, siding, drywall ,garage packages, foundations, commercial buildings

Knox Knolls Outdoor Power Service

No reviews yet

Knox Knolls Outdoor Power Service

No reviews yet
13 years of experience

Providing warranty and preventive maintenance services for Kohler engines, and Generac power washers and generators. Our specialty is generators, power washers, and pumps. We carry a full line of portable generators and power washers from Generac. We also provide accessories for Generac equipment including manual transfer switches and load centers. Our sales department can also provide sales of Kohler engines, a wide variety of pumps including trash, high pressure water pumps, and diaphragm pumps, and a full line of equipment and products used by homeowners, farmers, and other businesses.

Providing warranty and preventive maintenance services for Kohler engines, and Generac power washers and generators. Our specialty is generators, power washers, and pumps. We carry a full line of portable generators and power washers from Generac. We also provide accessories for Generac equipment including manual transfer switches and load centers. Our sales department can also provide sales of Kohler engines, a wide variety of pumps including trash, high pressure water pumps, and diaphragm pumps, and a full line of equipment and products used by homeowners, farmers, and other businesses.

My Classic Car Trader LLC

2.00(
1
)

My Classic Car Trader LLC

2.00(
1
)
53 years of experience

Sales, Service & Rebuilding of Antique and Classic Car Components such as, Carburetors, Starters, Generators, Fuel Pumps, Double & Single Action Fuel Pump Rebuilding, Water Pumps, Hydraulic Top Pumps, Distributors, and DELCO Knee Action Shocks, We also carry a complete line of NOS and NORS parts. We offer FREE Technical advice for any YEAR Classic Car 609-462-7412

"Beware. They charged me double shipping even after I told them I would wait so I wouldn’t have to pay two shipping fees. The last item was a fuel pump that I had a problem with. I have made 4 calls to ask for help with no return call. Poor"

Frank H on July 2020

Sales, Service & Rebuilding of Antique and Classic Car Components such as, Carburetors, Starters, Generators, Fuel Pumps, Double & Single Action Fuel Pump Rebuilding, Water Pumps, Hydraulic Top Pumps, Distributors, and DELCO Knee Action Shocks, We also carry a complete line of NOS and NORS parts. We offer FREE Technical advice for any YEAR Classic Car 609-462-7412

"Beware. They charged me double shipping even after I told them I would wait so I wouldn’t have to pay two shipping fees. The last item was a fuel pump that I had a problem with. I have made 4 calls to ask for help with no return call. Poor"

Frank H on July 2020

Generator Install questions, answered by experts

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.

A whole house generator can be worth the extra money for peace of mind if your home is prone to power outages for extended periods of time or if you have life-saving medical equipment that needs to maintain power at all times. These devices can also increase your home’s value, especially in areas prone to extreme weather and power outages.

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.

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.

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. 

The Illiopolis, 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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