Top-rated generator installers.

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There are 14 highly-rated local generator installers.

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Generator installers in Wilmette

Avatar for Blazer Electric Co
Blazer Electric Co
2929 Farner Ct
4.69(
359
)
Approved Pro
Blazer Electric Co
2929 Farner Ct
4.69(
359
)
Approved Pro
Customers say: Quality work
384 local quotes requested
38 years of experience

We offer complete electrical service for residential and commercial properties. We will help you to add something new, or improve your existing system. With over 27 years of experience in the industry, we offer thorough practical and theoretical knowledge of electrical systems. Expert trouble-shooting and repairs. 4 employees. No subs. Cost is determined by the job. No travel charges. No after hours charges. Award winning.

"Needed ceiling fan installed plus connected to electrical source. He also assembled fan for us. Job was done well and all works perfect. Fee reasonable too."

Nancy A on May 2025

We offer complete electrical service for residential and commercial properties. We will help you to add something new, or improve your existing system. With over 27 years of experience in the industry, we offer thorough practical and theoretical knowledge of electrical systems. Expert trouble-shooting and repairs. 4 employees. No subs. Cost is determined by the job. No travel charges. No after hours charges. Award winning.

"Needed ceiling fan installed plus connected to electrical source. He also assembled fan for us. Job was done well and all works perfect. Fee reasonable too."

Nancy A on May 2025


Avatar for Replay Electrical Systems
Replay Electrical Systems
5310 N Chester Ave, Chicago IL 60656
5.00(
5
)
Approved Pro
Replay Electrical Systems
5310 N Chester Ave, Chicago IL 60656
5.00(
5
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
46 local quotes requested

We guarantee your satisfaction and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out our services offered and call or click to schedule a free estimate today.

"We had Replay Electrical Systems replace a lot of old wiring, add some lights, receptacles and switches. Milos did a great job. Started and finished as promised. Kept work area clean and checked in with us as he progressed through the job. I definitely would recommend!!"

Richard A on November 2024

We guarantee your satisfaction and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out our services offered and call or click to schedule a free estimate today.

"We had Replay Electrical Systems replace a lot of old wiring, add some lights, receptacles and switches. Milos did a great job. Started and finished as promised. Kept work area clean and checked in with us as he progressed through the job. I definitely would recommend!!"

Richard A on November 2024


Avatar for Toptec Heating, Cooling, Plumbing & Electrical, Inc.
Toptec Heating, Cooling, Plumbing & Electrical, Inc.
510 North AVE
4.39(
588
)
Approved Pro
Toptec Heating, Cooling, Plumbing & Electrical, Inc.
510 North AVE
4.39(
588
)
Approved Pro
Customers say: Super punctual
153 local quotes requested
32 years of experience

TOPTEC Heating, Cooling, Plumbing & Electrical, Inc. is a family-owned Home Comfort Services company since 1993 servicing the northern suburbs with locations in Libertyville and McHenry, IL. TOPTEC integrates TOP quality, ethical practices and skillsets with expertise in today’s TEChnology to service and sell solutions designed in mind with comfort, reliability and performance. Products and Services Services available from TOPTEC include all plumbing, hot water, sewer & drain service needs, heating and air conditioning design and installation including forced air, boilers and ductless systems, HVAC servicing of all types of equipment, electrical services, duct & dryer vent cleaning and maintenance agreements for peace of mind. Our Plumbing & Sewer division provides camera inspections, rodding, hydrojetting, sewer repairs, water heaters, sump & ejector pumps, and servicing of all pipes and plumbing fixtures Our HVAC division provides installation and servicing of Furnaces, Air Conditioners, Heat Pumps, Boilers, ductless systems, Humidifiers, Air Cleaners, dehumidification and fresh air solutions. Our Electrical division installs and services electrical distribution panels, EV chargers, backup generators, electrical rewiring, switches, outlets and lighting fixtures. Specialized expertise includes endless hot water systems, geothermal energy savings solutions, ventilation & airflow analysis along with balancing/zoning, condo and apartment multi-building heating/cooling systems installation and services, and comprehensive indoor air quality solutions for residential and commercial customers.

"Great service. Fast and affordable."

Garcia D on November 2024

TOPTEC Heating, Cooling, Plumbing & Electrical, Inc. is a family-owned Home Comfort Services company since 1993 servicing the northern suburbs with locations in Libertyville and McHenry, IL. TOPTEC integrates TOP quality, ethical practices and skillsets with expertise in today’s TEChnology to service and sell solutions designed in mind with comfort, reliability and performance. Products and Services Services available from TOPTEC include all plumbing, hot water, sewer & drain service needs, heating and air conditioning design and installation including forced air, boilers and ductless systems, HVAC servicing of all types of equipment, electrical services, duct & dryer vent cleaning and maintenance agreements for peace of mind. Our Plumbing & Sewer division provides camera inspections, rodding, hydrojetting, sewer repairs, water heaters, sump & ejector pumps, and servicing of all pipes and plumbing fixtures Our HVAC division provides installation and servicing of Furnaces, Air Conditioners, Heat Pumps, Boilers, ductless systems, Humidifiers, Air Cleaners, dehumidification and fresh air solutions. Our Electrical division installs and services electrical distribution panels, EV chargers, backup generators, electrical rewiring, switches, outlets and lighting fixtures. Specialized expertise includes endless hot water systems, geothermal energy savings solutions, ventilation & airflow analysis along with balancing/zoning, condo and apartment multi-building heating/cooling systems installation and services, and comprehensive indoor air quality solutions for residential and commercial customers.

"Great service. Fast and affordable."

Garcia D on November 2024


Avatar for Four Seasons Heating & Air Conditioning
Four Seasons Heating & Air Conditioning
5701 W 73rd St
4.42(
3,052
)
Approved Pro
Four Seasons Heating & Air Conditioning
5701 W 73rd St
4.42(
3,052
)
Approved Pro
Customers say: Super punctual
913 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.

"After 20 Years of having 4 Seasons install our entire system (AC,Furnace,Hot water heater) and 20 Years of twice a year maintenance at $89.95 per visit, this last AC tune up yesterday was a scam! I always defended 4 Seasons to all my neighbors and clients/friends when they would say how terrible 4 seasons was at telling them they needed unwarranted repairs or replacement. I never felt that 4 seasons was scamming me until yesterday. The tech told me that I needed 2 parts that were failing, but when I asked him to show me, he couldn't tell me why the parts were failing. He didn't know that I know my stuff and knew that the parts in question were just replaced and were just fine. So when I called the tech on it, he said that 4 seasons is asking their techs to find stuff wrong with their units to cover their as**es for the "No Breakdown Guarantee" that they offer customer for 1 year. So if something was wrong with their system, 4 seasons would not be liable since they "supposedly" found something wrong with the unit. They quote outrageous prices for the repairs to make you actually buy a new unit. This is not the ethical treatment I was used to for 20 Years. Very disappointed and now considering switching my loyalty to another company. Might consider staying with them if they extend my warranty as discussed privately."

Aki K on May 2025

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.

"After 20 Years of having 4 Seasons install our entire system (AC,Furnace,Hot water heater) and 20 Years of twice a year maintenance at $89.95 per visit, this last AC tune up yesterday was a scam! I always defended 4 Seasons to all my neighbors and clients/friends when they would say how terrible 4 seasons was at telling them they needed unwarranted repairs or replacement. I never felt that 4 seasons was scamming me until yesterday. The tech told me that I needed 2 parts that were failing, but when I asked him to show me, he couldn't tell me why the parts were failing. He didn't know that I know my stuff and knew that the parts in question were just replaced and were just fine. So when I called the tech on it, he said that 4 seasons is asking their techs to find stuff wrong with their units to cover their as**es for the "No Breakdown Guarantee" that they offer customer for 1 year. So if something was wrong with their system, 4 seasons would not be liable since they "supposedly" found something wrong with the unit. They quote outrageous prices for the repairs to make you actually buy a new unit. This is not the ethical treatment I was used to for 20 Years. Very disappointed and now considering switching my loyalty to another company. Might consider staying with them if they extend my warranty as discussed privately."

Aki K on May 2025


Avatar for Barrington Electric
Barrington Electric
777 N Lake Zurich Rd #125B
4.93(
7
)
Approved Pro
Barrington Electric
777 N Lake Zurich Rd #125B
4.93(
7
)
Approved Pro
Customers say: Quick response
12 years of experience
Free onsite estimate

Barrington Electric is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals has over 12 years of hands-on experience, providing innovative ideas and suggestions tailored to your projects. Our services are customized to your individual needs, with close attention to the details of each project we undertake. Please feel free to contact us today!!

"The technicians with Barrington were fantastic. Very pleased with process and will use again."

Julie G on February 2025

Barrington Electric is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals has over 12 years of hands-on experience, providing innovative ideas and suggestions tailored to your projects. Our services are customized to your individual needs, with close attention to the details of each project we undertake. Please feel free to contact us today!!

"The technicians with Barrington were fantastic. Very pleased with process and will use again."

Julie G on February 2025


Avatar for A-Phase Electric, Inc.
A-Phase Electric, Inc.
2556 Essex Drive
4.96(
12
)
Approved Pro
A-Phase Electric, Inc.
2556 Essex Drive
4.96(
12
)
Approved Pro
Customers say: Quick response
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
18 years of experience

With over 15 years of experience in the electrical industry, we are the experts you need to take care of your home or business. We handle everything from panel upgrades to outlets and fixtures. We will treat your home, as we would treat our own. Give A-Phase Electric, a chance.

"They installed a vehicle charging station..."

Wayne W on December 2022

With over 15 years of experience in the electrical industry, we are the experts you need to take care of your home or business. We handle everything from panel upgrades to outlets and fixtures. We will treat your home, as we would treat our own. Give A-Phase Electric, a chance.

"They installed a vehicle charging station..."

Wayne W on December 2022


Hristo Brambarov
911 South Roosevelt Ave
5.00(
41
)
Approved Pro
Hristo Brambarov
911 South Roosevelt Ave
5.00(
41
)
Approved Pro
Super Service Award
Customers say: True professional
12 local quotes requested
13 years of experience

At Hristo Brambarov we pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

"The install needed new wiring in the attic since the rooms did not have an electrical box up there. Nice clean work and profesional attitude. Had excellent communication during the planning phase and during since it needed multiple days in the attic. I plan to call him for other projects."

Nikhilesh N on May 2025

At Hristo Brambarov we pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

"The install needed new wiring in the attic since the rooms did not have an electrical box up there. Nice clean work and profesional attitude. Had excellent communication during the planning phase and during since it needed multiple days in the attic. I plan to call him for other projects."

Nikhilesh N on May 2025


Amp Electric & Power, LLC
7222 W Crain St
4.98(
29
)
Approved Pro
Amp Electric & Power, LLC
7222 W Crain St
4.98(
29
)
Approved Pro
Customers say: True professional
6 years of experience
Free onsite estimate

At AMP Electric & Power LLC, we pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! Book with us online or feel free to give us a call today!

"Amp Electric & Power were great!! We had a bunch of things that needed to be done including moving the riser for the incoming power line, replacing the old 100amp electric panel with a 200amp panel (line to the house was already 200amp-capable), installing new power outlets and a fan box on our deck, and pulling new wire in rooms to support a dual switch for separate light/fan functionality from the switch. They were very efficient, friendly, listened, provided suggestions, and got the job done right. I will absolutely be using Amp Electric & Power again when I need it!!!"

Jeremy F on December 2024

At AMP Electric & Power LLC, we pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! Book with us online or feel free to give us a call today!

"Amp Electric & Power were great!! We had a bunch of things that needed to be done including moving the riser for the incoming power line, replacing the old 100amp electric panel with a 200amp panel (line to the house was already 200amp-capable), installing new power outlets and a fan box on our deck, and pulling new wire in rooms to support a dual switch for separate light/fan functionality from the switch. They were very efficient, friendly, listened, provided suggestions, and got the job done right. I will absolutely be using Amp Electric & Power again when I need it!!!"

Jeremy F on December 2024


Centro Development
1800 West Cermak Road
New on HomeAdvisorNew on Angi
Approved Pro
Centro Development
1800 West Cermak Road
New on AngiNew on HomeAdvisor
Approved Pro
33 years of experience
Free onsite estimate

It can be a daunting task looking for only the right contractor for your job but also the right contractor for you. We completely understand what you're going through. We know every customer has different desires, different needs and different schedules. We're only here to turn your ideas into reality but to make it a memorable experience every step of the way. Call us right now, no matter where you are in the planning process.

It can be a daunting task looking for only the right contractor for your job but also the right contractor for you. We completely understand what you're going through. We know every customer has different desires, different needs and different schedules. We're only here to turn your ideas into reality but to make it a memorable experience every step of the way. Call us right now, no matter where you are in the planning process.


All Service Calls, LLC
9059 O'Neill Drive
4.98(
33
)
Approved Pro
All Service Calls, LLC
9059 O'Neill Drive
4.98(
33
)
Approved Pro
Customers say: Quick response
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
22 years of experience

Here at All Service Calls LLC, we pride our company on reliability, great communication, integrity and quality work. We strongly believe in giving our absolute best in all of our projects, no matter how big or small. We are experts in our trade and will always keep you educated on your particular task or project. We look forward to earning your business!

"Timely and professional. Responsive and completed the job faster than expected with cleanup. "

Collin C on January 2025

Here at All Service Calls LLC, we pride our company on reliability, great communication, integrity and quality work. We strongly believe in giving our absolute best in all of our projects, no matter how big or small. We are experts in our trade and will always keep you educated on your particular task or project. We look forward to earning your business!

"Timely and professional. Responsive and completed the job faster than expected with cleanup. "

Collin C 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.
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