Top-rated generator installers.

Get matched with top generator installers in Woodstock, IL

There are 7 highly-rated local generator installers.

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Average homeowner rating star icon4.3
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Verified reviews icon33
Verified generator installations reviews

Generator installers in Woodstock

Avatar for Tri-State Water, Power & Air
Tri-State Water, Power & Air
9526 Corsair Rd
New on HomeAdvisorNew on Angi
Approved Pro
Tri-State Water, Power & Air
9526 Corsair Rd
New on AngiNew on HomeAdvisor
Approved Pro
168 local quotes requested
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.

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.


Avatar for Four Seasons Heating & Air Conditioning
Four Seasons Heating & Air Conditioning
5701 W 73rd St
4.42(
3,053
)
Approved Pro
Four Seasons Heating & Air Conditioning
5701 W 73rd St
4.42(
3,053
)
Approved Pro
Super Service Award
Customers say: Super punctual
950 local quotes requested
54 years of experience

Four Seasons Heating, Air Conditioning, and Plumbing began as a father-son business operating out of a Chicago garage in 1971. They went from home to home repairing furnaces and air conditioners with the goal of offering their customers honest and competent service. No extra charge for 24 hr emergency service. Additional contacts: Chicago 773-413-1505 & 773-413-1028, South suburbs 708-406-3002, Southwest suburbs 815-306-2471, West suburbs 630-210-3352, North & Northwest 847-201-3222 , Northwest Indiana 219-228-8606, and (866) 444-2404. Additional emails - [email protected], [email protected], [email protected]. Additional fax numbers- 773-284-9484, 847-783-0400. Additional contact names - David Musial. Additional DBAs - Four Seasons Heating, Air Conditioning and Plumbing, Four Seasons Heating & Air Conditioning, Inc., Four Seasons Heating & Air.

"Excellent work. The same day that my 40 gallon Whirlpool hot water heater stopped working I was able to have Four Seasons install a new Rheem (short) 40 gallon hot water heater."

Robert K on August 2022

Four Seasons Heating, Air Conditioning, and Plumbing began as a father-son business operating out of a Chicago garage in 1971. They went from home to home repairing furnaces and air conditioners with the goal of offering their customers honest and competent service. No extra charge for 24 hr emergency service. Additional contacts: Chicago 773-413-1505 & 773-413-1028, South suburbs 708-406-3002, Southwest suburbs 815-306-2471, West suburbs 630-210-3352, North & Northwest 847-201-3222 , Northwest Indiana 219-228-8606, and (866) 444-2404. Additional emails - [email protected], [email protected], [email protected]. Additional fax numbers- 773-284-9484, 847-783-0400. Additional contact names - David Musial. Additional DBAs - Four Seasons Heating, Air Conditioning and Plumbing, Four Seasons Heating & Air Conditioning, Inc., Four Seasons Heating & Air.

"Excellent work. The same day that my 40 gallon Whirlpool hot water heater stopped working I was able to have Four Seasons install a new Rheem (short) 40 gallon hot water heater."

Robert K on August 2022


Avatar for Spark
Spark
700 Grand Canyon St
4.45(
10
)
Approved Pro
Spark
700 Grand Canyon St
4.45(
10
)
Approved Pro
Customers say: True professional
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
8 years of experience

Spark 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 customer's interests, and make their concerns the basis of our business. Services offered by the company : - Electrical - Plumbing - Welding - Bathroom remodeling - Tile installation - Kitchen remodeling - All kind of Handyman services

"Was extremely professional , perform the task of replacement of gas mantle ,"

Victor T on August 2024

Spark 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 customer's interests, and make their concerns the basis of our business. Services offered by the company : - Electrical - Plumbing - Welding - Bathroom remodeling - Tile installation - Kitchen remodeling - All kind of Handyman services

"Was extremely professional , perform the task of replacement of gas mantle ,"

Victor T on August 2024


Avatar for AIT Communication Group LLC
AIT Communication Group LLC
60 Joey Drive
5.00(
8
)
Approved Pro
AIT Communication Group LLC
60 Joey Drive
5.00(
8
)
Approved Pro
Customers say: Quick response
2 years of experience
Free onsite estimate

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer’s needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"I had previously gotten a quote from *****busters that was 3x the amount that AIT quoted. I felt better about going with AIT though because of the service - Artur and his team were confident in their service and the products they sell and they guaranteed that they would stand by me until my home networking issues were resolved. Months later, my entire 4500 sqft home receives flawlessly smooth internet/streaming without anymore blank spots. I cannot recommend AIT enough to those looking for affordable and quality residential networking diagnosis/installation."

Tiffani H on November 2024

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer’s needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"I had previously gotten a quote from *****busters that was 3x the amount that AIT quoted. I felt better about going with AIT though because of the service - Artur and his team were confident in their service and the products they sell and they guaranteed that they would stand by me until my home networking issues were resolved. Months later, my entire 4500 sqft home receives flawlessly smooth internet/streaming without anymore blank spots. I cannot recommend AIT enough to those looking for affordable and quality residential networking diagnosis/installation."

Tiffani H on November 2024


Avatar for O'Carroll Electrical Contracting
O'Carroll Electrical Contracting
347 Sola Dr
5.00(
1
)
Approved Pro
O'Carroll Electrical Contracting
347 Sola Dr
5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
31 years of experience

Chicagoland Union Electrical Contractor with over 100 years combined experience in the commercial and industrial sectors. O'Carroll Electrical Contracting is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have years of hands on experience, to provide innovative ideas and suggestions tailored to your projects. Our services are customized to your individual needs, paying close attention to the details of each project that we are involved with. Please feel free to contact us today! ocarrollelectric.com

"They did a very good job. They are a great company."

Ryan F on August 2021

Chicagoland Union Electrical Contractor with over 100 years combined experience in the commercial and industrial sectors. O'Carroll Electrical Contracting is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have years of hands on experience, to provide innovative ideas and suggestions tailored to your projects. Our services are customized to your individual needs, paying close attention to the details of each project that we are involved with. Please feel free to contact us today! ocarrollelectric.com

"They did a very good job. They are a great company."

Ryan F on August 2021


Nighthawk Electric
4421 Poplar Leaf Drive
New on HomeAdvisorNew on Angi
Approved Pro
Nighthawk Electric
4421 Poplar Leaf Drive
New on AngiNew on HomeAdvisor
Approved Pro
8 years of experience
Free onsite estimate

Nighthawk Electric Inc 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.

Nighthawk Electric Inc 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.


Avatar for M & K Contractors Inc.
M & K Contractors Inc.
1873 Hicks Rd Ste C
5.00(
1
)
Approved Pro
M & K Contractors Inc.
1873 Hicks Rd Ste C
5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
14 years of experience

M&K Contractors is a Chicago area company providing commercial general contracting construction, project management and design build services to both private and public clients. We have maintained a solid record of quality, reliability and customer service in a very competitive and complex marketplace. We specialize in commercial build-outs & remodel projects and focus on meeting client expectations and bringing in projects on time and within budget. Our sweet spot is a small or medium-sized interior commercial project from a few thousand square feet to several floors. We do not build the building we finish the inside to meet demanding customer requirements.

"My best experience with any contractor"

TJ S on May 2022

M&K Contractors is a Chicago area company providing commercial general contracting construction, project management and design build services to both private and public clients. We have maintained a solid record of quality, reliability and customer service in a very competitive and complex marketplace. We specialize in commercial build-outs & remodel projects and focus on meeting client expectations and bringing in projects on time and within budget. Our sweet spot is a small or medium-sized interior commercial project from a few thousand square feet to several floors. We do not build the building we finish the inside to meet demanding customer requirements.

"My best experience with any contractor"

TJ S on May 2022


Avatar for Accent Tel USA
Accent Tel USA
3501 Bessie Coleman Blvd, Suite 25203
4.88(
8
)
Approved Pro
Accent Tel USA
3501 Bessie Coleman Blvd, Suite 25203
4.88(
8
)
Approved Pro
Customers say: Quick response
17 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.

"Joe, Mark, and Their Team did a Splendid Job for Us on this Business Phone Line Install. There are Very Knowledgeable and provided the Needed Assessment and "Fix" in a Very Timely Manner. I Highly Recommend Accent Tel USA! God Bless You! Philippians 1:3-6! Have a Wonderful Day in the Neighborhood & "Stay on the Nice List"! :)"

Buck B on August 2024

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.

"Joe, Mark, and Their Team did a Splendid Job for Us on this Business Phone Line Install. There are Very Knowledgeable and provided the Needed Assessment and "Fix" in a Very Timely Manner. I Highly Recommend Accent Tel USA! God Bless You! Philippians 1:3-6! Have a Wonderful Day in the Neighborhood & "Stay on the Nice List"! :)"

Buck B on August 2024


Avatar for Flowing Through Connections, Inc.
Flowing Through Connections, Inc.
6351 W. Montrose Ave. # 233
4.91(
23
)
Approved Pro
Flowing Through Connections, Inc.
6351 W. Montrose Ave. # 233
4.91(
23
)
Approved Pro
Customers say: Quick response
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
25 years of experience

Flowing Through Connections, Inc., sends a commitment to our clients with a signature that says, Telecommunications Experience you can trust. We are a Telecommunications Services provider designed to meet your business needs. Minimum Charge: $175.00 per hour x 2. Give us a call today! . . V E T E R A N -- O W N E D PLEASE NOTE THAT WE ARE A BUSINESS-TO-BUSINESS COMPANY ONLY. We DO NOT service RESIDENTIAL customers.

"Not only did they connect my sound system, but they helped me with an existing Ring security system and a built-in espresso machine that I had no manuals for and unable to figure out how to use them. They were friendly and knew exactly what I needed so that I’m fully functional and safe. I will hire them again and recommend them to anyone that needs help with anything related to electronics. Great team."

Linda B on April 2025

Flowing Through Connections, Inc., sends a commitment to our clients with a signature that says, Telecommunications Experience you can trust. We are a Telecommunications Services provider designed to meet your business needs. Minimum Charge: $175.00 per hour x 2. Give us a call today! . . V E T E R A N -- O W N E D PLEASE NOTE THAT WE ARE A BUSINESS-TO-BUSINESS COMPANY ONLY. We DO NOT service RESIDENTIAL customers.

"Not only did they connect my sound system, but they helped me with an existing Ring security system and a built-in espresso machine that I had no manuals for and unable to figure out how to use them. They were friendly and knew exactly what I needed so that I’m fully functional and safe. I will hire them again and recommend them to anyone that needs help with anything related to electronics. Great team."

Linda B on April 2025


Avatar for Kapital Electric Company, Inc.
Kapital Electric Company, Inc.
1270 Mark Street
4.62(
216
)
Approved Pro
Kapital Electric Company, Inc.
1270 Mark Street
4.62(
216
)
Approved Pro
Super Service Award
Customers say: True professional
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
158 local quotes requested

Specializing in the design and installations of PV Solar Energy and Energy Storage Systems, EV Charging Stations, Natural Gas Generators and Whole House and Attic Fans.

"EXCEPTIONAL SERVICE & EXPERIENCE FROM START TO FINISH. Let me start with the fact that I had no idea as to what I was getting into when I purchased an EV. The team at Kapital Electric helped to set me up with a home charger (at no cost to me). Donald at Kapital Electric met with me to discuss to process and provided me all the necessary paperwork to get the ball rolling. In no time, the charger was being installed. The staff who came to install were professional, work was neat and completed in the specified time. If you're looking for exceptional service & experience from start to finish, give Kapital Electric a call!"

Mark D on January 2025

Specializing in the design and installations of PV Solar Energy and Energy Storage Systems, EV Charging Stations, Natural Gas Generators and Whole House and Attic Fans.

"EXCEPTIONAL SERVICE & EXPERIENCE FROM START TO FINISH. Let me start with the fact that I had no idea as to what I was getting into when I purchased an EV. The team at Kapital Electric helped to set me up with a home charger (at no cost to me). Donald at Kapital Electric met with me to discuss to process and provided me all the necessary paperwork to get the ball rolling. In no time, the charger was being installed. The staff who came to install were professional, work was neat and completed in the specified time. If you're looking for exceptional service & experience from start to finish, give Kapital Electric a call!"

Mark D on January 2025

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Generator installations FAQs

Installing a whole-house generator costs about $5,000 on average. Prices range from $1,550 to $8,500, depending on size, brand, fuel type, and assembly. The size of your whole-house generator is the most significant cost factor, with large homes with high energy demands costing the most to power. Types of whole-home generators include:

  • Portable generators with 1kW–7.5kW capacity: $500–$2,000

  • Partial generators with 9kW–20kW capacity: $2,000–$6,300

  • Whole-house generators with 22kW–48kW: $5,000–$18,000

When maintained properly, a whole-house generator can last up to 20 years. Costs to maintain and repair generators vary by location and type of generator, but you can expect to pay about $150 to $300 per year for annual generator maintenance checks. An experienced generator service technician will inspect your generator’s engine filter, starting mechanism, fuel, lubrication, and coolant levels to keep your generator in good working condition for as long as possible.

When choosing the right size generator for your needs, consider a few items to help calculate the wattage you’ll need. Start by determining which household items and appliances you want to power, and then add the wattages together. Check out the wattage of these essential appliances:

  • Refrigerator: 600 watts

  • Large dehumidifier: 700 watts

  • Large window air conditioner: 1,400 watts

  • Water heater: 3,000 watts

Running home appliances like these requires a partial or whole-house generator. A portable generator may be enough to power your home if you only plan to keep a refrigerator and freezer running. 

Here’s what you can run with different wattages and types of generators:

Portable generator:

  • 2,000 watts can handle a large appliance like a freezer or refrigerator, plus a few smaller items like phones or computer chargers. 

  • 4,000 watts will keep two large appliances operating and a few smaller devices.

  • 8,000 watts should power most essential appliances and other devices, including a sump pump, well pump, or your dishwasher.

Partial to whole-house generator:

  • 20,000 watts and above will make it seem like your home’s power is still on.

The value of installing a whole-house generator is that your home has guaranteed power, even if the power grid in your area is down. Whether a whole-house generator is worth installing in your home depends on how often you use it, your home’s location, and your lifestyle. For example, installing a whole-house generator is likely worth it if you:

  • Experience frequent or prolonged power outages

  • Work from home

  • Store a lot of cold food

  • Have a sump pump

  • Have a pump for well water

  • Use electronic medical devices

  • Live in a climate requiring heating or cooling

The homeowners guide to generator installations
From average costs to expert advice, get all the answers you need to get your job done.
A portable inverter generator
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The average cost of a whole-house generator falls between $5,000 and $25,000. Keep reading to learn how much you can expect to spend.
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outdoor diesel power generator
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emergency power supply outside home
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How much does it cost to run a standby generator? The answer varies based on the type and size of the generator. Find out more.
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