Top-rated generator install pros.

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There are 1 highly-rated local generator install pros.

Verified Reviews for Generator Install pros in Winchester, IL

*The Angi rating for Generator Install companies in Winchester, 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 Winchester, 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 October 05, 2025

Find Generator install pros in Winchester

Avatar for Crewline Construction

Crewline Construction

242 E Patterson Road
5.00(
6
)
•Approved Pro

Crewline Construction

242 E Patterson Road
5.00(
6
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
3 years of experience

Crewline Construction 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.

"Ryan is a hard worker He knows how to do several types of carpentry. he is meticulous and very picky about that the job is done the way it is supposed to be done. we could not have found a better worker."

Patricia H on August 2024

Crewline Construction 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.

"Ryan is a hard worker He knows how to do several types of carpentry. he is meticulous and very picky about that the job is done the way it is supposed to be done. we could not have found a better worker."

Patricia H on August 2024

Avatar for Accent Tel USA

Accent Tel USA

3501 Bessie Coleman Blvd, Suite 25203
4.89(
9
)
•Approved Pro

Accent Tel USA

3501 Bessie Coleman Blvd, Suite 25203
4.89(
9
)
•Approved Pro
Customers say: Quick response
14 local quotes requested
16 years of experience

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

Tri-State Water, Power & Air

1656 HEADLAND DR
1.00(
1
)

Tri-State Water, Power & Air

1656 HEADLAND DR
1.00(
1
)
33 years of experience

We are the experts in the field of Whole Home Generator Sales and Installation, with over 20 years of experience in the game. We provide turn-key installation by licensed professionals - 24 hour emergency service - Remote Monitoring - Long term maintenance and service by factory trained technicians.

"They initially contacted me via email ready to make a visit for the install. Said that they could do the project no problem. Then when they realized I wouldn’t be buying a generator from them, which I had TOLD them upfront, they canceled on me. That is not an acceptable way to do business. They should simply state that they only install generators that they sell and not waste my time."

James K on May 2025

We are the experts in the field of Whole Home Generator Sales and Installation, with over 20 years of experience in the game. We provide turn-key installation by licensed professionals - 24 hour emergency service - Remote Monitoring - Long term maintenance and service by factory trained technicians.

"They initially contacted me via email ready to make a visit for the install. Said that they could do the project no problem. Then when they realized I wouldn’t be buying a generator from them, which I had TOLD them upfront, they canceled on me. That is not an acceptable way to do business. They should simply state that they only install generators that they sell and not waste my time."

James K on May 2025

Gatto Electric, Inc

4552 N. Sayre Avenue
No reviews yet

Gatto Electric, Inc

4552 N. Sayre Avenue
No reviews yet
14 years of experience

Licensed, bonded and insured contractors, 24/7 emergency service, paperless billing, excellent customer service, professional technicians, custom electrical design planning, custom installations, custom remodeling.

Licensed, bonded and insured contractors, 24/7 emergency service, paperless billing, excellent customer service, professional technicians, custom electrical design planning, custom installations, custom remodeling.

My Classic Car Trader LLC

312 Prospect Ave
2.00(
1
)

My Classic Car Trader LLC

312 Prospect Ave
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

Lee Legler Construction & Electric Inc

181 Wolf St Unit A
5.00(
5
)

Lee Legler Construction & Electric Inc

181 Wolf St Unit A
5.00(
5
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Generac Automatic Home Generator Dealer ,Sales and Service Home and small business electric installations, repairs and upgrades Generator Maintenance and repair Generac Home Standby Generators in stock

"Lee and his crew were very professional and did an amazing job. We now have a Generac whole house automatic standby generator ready to go if our electric service ever fails. My wife and I and our contractor all have an app that gives us the generator's status, maintenance requirements, run time, etc., etc.....if the unit fails to start (for example) we will all get an alert and they have 24/7 service so this is extremely reassuring."

Russell P on January 2023

Generac Automatic Home Generator Dealer ,Sales and Service Home and small business electric installations, repairs and upgrades Generator Maintenance and repair Generac Home Standby Generators in stock

"Lee and his crew were very professional and did an amazing job. We now have a Generac whole house automatic standby generator ready to go if our electric service ever fails. My wife and I and our contractor all have an app that gives us the generator's status, maintenance requirements, run time, etc., etc.....if the unit fails to start (for example) we will all get an alert and they have 24/7 service so this is extremely reassuring."

Russell P on January 2023

Griffin Electric Inc

340 S Schrader Ave
3.67(
3
)

Griffin Electric Inc

340 S Schrader Ave
3.67(
3
)
Customers say: Quick response
86 years of experience

We offer financing through FTL Finance for large projects such as new Furnace, Air Conditioning and Boiler Systems.

"Woke up w/o heat on a frigid January morning. After failing to get the furnace back on, we called Griffin. The owner took the call and arrived within 30 minutes. He diagnosed the problem, ran to town to get a new part, and had it installed and up-and-running in less than 2 hours, all w/o breaking the bank. He was friendly, professional, and honest."

Kurt J on January 2022

We offer financing through FTL Finance for large projects such as new Furnace, Air Conditioning and Boiler Systems.

"Woke up w/o heat on a frigid January morning. After failing to get the furnace back on, we called Griffin. The owner took the call and arrived within 30 minutes. He diagnosed the problem, ran to town to get a new part, and had it installed and up-and-running in less than 2 hours, all w/o breaking the bank. He was friendly, professional, and honest."

Kurt J on January 2022

Fowler Heating & Cooling

423 S Court St
4.64(
22
)

Fowler Heating & Cooling

423 S Court St
4.64(
22
)
Customers say: Super punctual
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers

Fowler Heating and Cooling is Family owned and operated. Serving the Southern Illinois Area since 1979. Specializing in Heating, Air Conditioning, Furnaces, and Duct Cleaning. Our dedication and appreciation of our customers and their needs has resulted in over 70% of our business comes from referrals. We care about our quality of our work, and the relationships with our customers. ‎ [email protected].

Fowler Heating and Cooling is Family owned and operated. Serving the Southern Illinois Area since 1979. Specializing in Heating, Air Conditioning, Furnaces, and Duct Cleaning. Our dedication and appreciation of our customers and their needs has resulted in over 70% of our business comes from referrals. We care about our quality of our work, and the relationships with our customers. ‎ [email protected].

Generator Install questions, answered by experts

Costs range from $500 to $2,500, depending on generator type and installation complexity.

To power a central air system during a power outage, the whole-house generator will need to be at least 5,000 watts, and this number will significantly increase for larger units. Check the specific wattage requirements of your AC unit to choose the right generator size. Consider consulting a generator installer to ensure your whole-house generator meets your electrical load needs.

You can determine what size generator you need by listing the various appliances it will power during an outage. Write down the start-up watt usage, and then add them all together. 

A 7,500-watt generator will run your refrigerator, freezer, well pump, and lighting circuits without a problem. However, you’ll need an extra 3,000 to 4,500 watts to run your water heater and another 5,000 to 25,000 watts to run your electric furnace. In these instances, a whole-home generator is your best bet for running your critical equipment.

Generally, you’ll want to keep between 60 and 70 feet between the generator and the transfer switch. There are a few reasons for this, including:

  • The distance reduces the noise coming from the generator into your home.

  • It increases efficiency because you won’t have a voltage drop from this short of a distance.

  • Prevents carbon monoxide poisoning: keep at least 15 feet between your generator and an open window. 

DIY is possible for basic setups. Professional installation ensures safe and proper electrical connections.

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The Winchester, 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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