Top-rated generator installers.

Get matched with top generator installers in Oakwood Hills, IL

There are 7 highly-rated local generator installers.

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Verified generator installations reviews

Generator installers in Oakwood Hills

Avatar for D Best Electric
D Best Electric
420 Walnut Ave Apt 1
5.00(
8
)
Approved Pro
D Best Electric
420 Walnut Ave Apt 1
5.00(
8
)
Approved Pro
Customers say: True professional
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
41 local quotes requested

We offer the best quality electrical work, we strive into quality work. Very responsible on our schedule. We offer a clean environment, leave the project cleaned and strive on making the project go smooth as possible and avoid hassles and drama for homeowners.

"D Best did a great job on a large commercial project for us, Bridgewater Construction Management,Inc."

Frank H on April 2025

We offer the best quality electrical work, we strive into quality work. Very responsible on our schedule. We offer a clean environment, leave the project cleaned and strive on making the project go smooth as possible and avoid hassles and drama for homeowners.

"D Best did a great job on a large commercial project for us, Bridgewater Construction Management,Inc."

Frank H on April 2025


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
967 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 DMT Unlimited, Inc.
DMT Unlimited, Inc.
905 Pingree Road, Suite E
4.97(
39
)
Approved Pro
DMT Unlimited, Inc.
905 Pingree Road, Suite E
4.97(
39
)
Approved Pro
Customers say: Quick response
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
9 years of experience

We can take on a wide range of residential and commercial low voltage / electrical projects which might include the design and installation of a high end home theater system or just helping set up your new wireless home network. We take pride in the quality of our work and our commitment to outstanding results. We look forward to building strong, long-term relationships with our clients and always guarantee your satisfaction.

"They were very professional, knowledgeable, and patient for answering all my questions (even some random one that didn't involve the project). The TV wall mount installation was perfect!"

Briana B on May 2025

We can take on a wide range of residential and commercial low voltage / electrical projects which might include the design and installation of a high end home theater system or just helping set up your new wireless home network. We take pride in the quality of our work and our commitment to outstanding results. We look forward to building strong, long-term relationships with our clients and always guarantee your satisfaction.

"They were very professional, knowledgeable, and patient for answering all my questions (even some random one that didn't involve the project). The TV wall mount installation was perfect!"

Briana B on May 2025


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 M&D Heating&Cooling
M&D Heating&Cooling
671 Cooper Ave
4.94(
9
)
Approved Pro
M&D Heating&Cooling
671 Cooper Ave
4.94(
9
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
14 local quotes requested

We here at M and D Heating and Cooling take great pride in our expertise, quality and customer service that we provide.  We exceed the consumer’s expectations. 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 our time to 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.

"Exceptional and timely completion of service by Daniel.My yard is looking lovely!"

GAYATHRI N on May 2025

We here at M and D Heating and Cooling take great pride in our expertise, quality and customer service that we provide.  We exceed the consumer’s expectations. 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 our time to 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.

"Exceptional and timely completion of service by Daniel.My yard is looking lovely!"

GAYATHRI N on May 2025


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


Avatar for Rhodium Contractors
Rhodium Contractors
2600 W. 35th St
4.17(
6
)
Approved Pro
Rhodium Contractors
2600 W. 35th St
4.17(
6
)
Approved Pro
Customers say: Quality work
11 years of experience
Free onsite estimate

At Rhodium Contractors we specialize in indoor & outdoor home renovation, as well as general handymen work. We are strongly committed to providing high-quality work and customer service. We offer free estimates and will work with you side by side on every aspect along the way. We uphold a high standard of integrity bound by fairness, honesty, and responsibility in all of our jobs. There is no job too big, or too small for our team. Call in today and let us put our experience to work for you!

"did a good job"

Alicia J on May 2024

At Rhodium Contractors we specialize in indoor & outdoor home renovation, as well as general handymen work. We are strongly committed to providing high-quality work and customer service. We offer free estimates and will work with you side by side on every aspect along the way. We uphold a high standard of integrity bound by fairness, honesty, and responsibility in all of our jobs. There is no job too big, or too small for our team. Call in today and let us put our experience to work for you!

"did a good job"

Alicia J on May 2024


Avatar for Northern Lights and Power, Inc.
Northern Lights and Power, Inc.
512 Belmont Parkway
4.98(
31
)
Approved Pro
Northern Lights and Power, Inc.
512 Belmont Parkway
4.98(
31
)
Approved Pro
Super Service Award
Customers say: True professional
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
13 years of experience

Best Prices Guaranteed. We pride our self on using the highest quality material and paying great attention to detail. With over 15 years of experience in the lighting industry, we are the experts you need to take care of your outdoor lighting needs.. We handle everything from low-voltage outdoor lighting to installation of post lights, mailbox lights, and new this year DOCK LIGHTING! . We will treat your home as we would treat our own. Give, Northern Lights and Power, Inc., a call today, we look forward to working with you!

"Fast, honest, detailed work, all for a fair price"

matthew f on April 2024

Best Prices Guaranteed. We pride our self on using the highest quality material and paying great attention to detail. With over 15 years of experience in the lighting industry, we are the experts you need to take care of your outdoor lighting needs.. We handle everything from low-voltage outdoor lighting to installation of post lights, mailbox lights, and new this year DOCK LIGHTING! . We will treat your home as we would treat our own. Give, Northern Lights and Power, Inc., a call today, we look forward to working with you!

"Fast, honest, detailed work, all for a fair price"

matthew f on April 2024

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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.
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emergency power supply outside home
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