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TRUSTED BY HOMEOWNERS

Average homeowner rating star icon4.5
Average homeowner rating
Verified reviews icon22
Verified generator installations reviews

Generator installers in Centerport

Avatar for Unity Electrical Company
Unity Electrical Company
5.00(
12
)
Approved Pro
Unity Electrical Company
5.00(
12
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
23 local quotes requested

We specialize in electrical services, repairs, installs, lighting, panel upgrades, ceiling fans, and more! 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 all the services we offer below and call -or- click to schedule a free estimate today!

"Excellent!"

Patricia G on January 2024

We specialize in electrical services, repairs, installs, lighting, panel upgrades, ceiling fans, and more! 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 all the services we offer below and call -or- click to schedule a free estimate today!

"Excellent!"

Patricia G on January 2024


Avatar for J.T. Rose Electric
J.T. Rose Electric
5.00(
11
)
Approved Pro
J.T. Rose Electric
5.00(
11
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
56 local quotes requested

With over 20 years of electrical experience, we are here to help you with all your electrical needs. Licensed and insured, we can tackle anything from smart home networking and landscape lighting to service upgrades and Generators

"Anthony is a life saver. He has great prices and works with you. Next day service and he replaced my meter box. I recommend him to anyone who needs an electrician. Thank you Anthony"

Peter L on July 2024

With over 20 years of electrical experience, we are here to help you with all your electrical needs. Licensed and insured, we can tackle anything from smart home networking and landscape lighting to service upgrades and Generators

"Anthony is a life saver. He has great prices and works with you. Next day service and he replaced my meter box. I recommend him to anyone who needs an electrician. Thank you Anthony"

Peter L on July 2024


Avatar for RJD Electrical
RJD Electrical
154 6th St
4.23(
22
)
Approved Pro
RJD Electrical
154 6th St
4.23(
22
)
Approved Pro
Customers say: Quality work
52 local quotes requested
12 years of experience

Our mission at RJD Electrical is to continue the growth of our business by doing right by all of our clients. We love seeing that one of a kind smile on a home owners face, at the end of a project! RJD Electrical, stacks up with the competition, and surpasses it with competitive prices, second to none workmanship, and a prompt/responsive team. We give you quality that you can measure, and a finished product that will enhance your home forever. Licensed and Insured! Call us today!

"Excellent work! Reed and Cole did a good job installing my EV charger. Took less than the 2 hours they thought. And a great price! I will use them for future work and will refer my friends to them. Professional and nice people."

Edmund L on January 2025

Our mission at RJD Electrical is to continue the growth of our business by doing right by all of our clients. We love seeing that one of a kind smile on a home owners face, at the end of a project! RJD Electrical, stacks up with the competition, and surpasses it with competitive prices, second to none workmanship, and a prompt/responsive team. We give you quality that you can measure, and a finished product that will enhance your home forever. Licensed and Insured! Call us today!

"Excellent work! Reed and Cole did a good job installing my EV charger. Took less than the 2 hours they thought. And a great price! I will use them for future work and will refer my friends to them. Professional and nice people."

Edmund L on January 2025


Generation Green Electric, Inc
264 Park Ave
5.00(
39
)
Approved Pro
Generation Green Electric, Inc
264 Park Ave
5.00(
39
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
44 local quotes requested

Specializing in wiring of commercial buildings, new homes, remodels, extensions, dormers, services, generators, swimming pool, LED lighting and all aspects of electrical wiring. We are an owner/operator company and have been serving Long Island since 1995. We offer quality, professional service at a competitive price.

"John was excellent, very reliable efficient and responsive when it came to getting the job done. You’re getting professional work for a great price. I will definitely use again in the future"

Joe D on December 2024

Specializing in wiring of commercial buildings, new homes, remodels, extensions, dormers, services, generators, swimming pool, LED lighting and all aspects of electrical wiring. We are an owner/operator company and have been serving Long Island since 1995. We offer quality, professional service at a competitive price.

"John was excellent, very reliable efficient and responsive when it came to getting the job done. You’re getting professional work for a great price. I will definitely use again in the future"

Joe D on December 2024


Avatar for Dependable Electrical
Dependable Electrical
92 Westminster Drive
5.00(
20
)
Approved Pro
Dependable Electrical
92 Westminster Drive
5.00(
20
)
Approved Pro
Customers say: Quality work
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
56 local quotes requested

At Dependable Electrical, we offer a wide range of services for all residential homes and commercial businesses. Specializing in service changes and upgrades, panel swaps and upgrades, Electrical Vehicle charging stations and more. Safety and efficiency are our standards. Dependable Electrical is Licensed and Insured, operating throughout the Suffolk County area.

"Went great 👍. Steve, Mark and Samory were all very professional. Thanks for handling all our electrical issues. A special shout out to Samory for staying late just to finish up and make sure he left this place spotless! Fantastic electrician with a very positive attitude. Super friendly!"

Annette D on February 2025

At Dependable Electrical, we offer a wide range of services for all residential homes and commercial businesses. Specializing in service changes and upgrades, panel swaps and upgrades, Electrical Vehicle charging stations and more. Safety and efficiency are our standards. Dependable Electrical is Licensed and Insured, operating throughout the Suffolk County area.

"Went great 👍. Steve, Mark and Samory were all very professional. Thanks for handling all our electrical issues. A special shout out to Samory for staying late just to finish up and make sure he left this place spotless! Fantastic electrician with a very positive attitude. Super friendly!"

Annette D on February 2025


Avatar for TFC ELECTRIC, INC.
TFC ELECTRIC, INC.
Serving SUFFOLK COUNTY
4.98(
201
)
Approved Pro
TFC ELECTRIC, INC.
Serving SUFFOLK COUNTY
4.98(
201
)
Approved Pro
Customers say: Super punctual
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
25 local quotes requested

5-Star Excellence at TFC Electric Inc. We pride ourselves on achieving a 5-STAR rating on GOOGLE because customer satisfaction is more than just a goal – it's a core commitment. We invite you to explore our reviews and discover what our esteemed customers have to say about their experiences. Services include: New Construction: Bring your vision to life with our expert electrical wiring and installation services for new constructions. • Electrical Repairs • Electrical Inspections • Generator Installation • Electrical Service Panel Upgrades: Upgrade your electrical system for increased safety and efficiency. 100Amp, 200Amp panel upgrades • Meter installations or replacements • Landscape and Outdoor Lighting • Troubleshooting Power Outages: We identify and address electrical issues promptly to restore power to your home. • Pool/Hot Tub Connections • Circuit Breakers: Installation, repair, and maintenance • Electrical Wiring and Repairs • Lighting indoor/outdoor • Appliance connections • Undercounter lighting: • EV charge stations: Contact TFC Electric Inc. for Free estimates at 631-589-2800

"Great product install"

Andy S on July 2024

5-Star Excellence at TFC Electric Inc. We pride ourselves on achieving a 5-STAR rating on GOOGLE because customer satisfaction is more than just a goal – it's a core commitment. We invite you to explore our reviews and discover what our esteemed customers have to say about their experiences. Services include: New Construction: Bring your vision to life with our expert electrical wiring and installation services for new constructions. • Electrical Repairs • Electrical Inspections • Generator Installation • Electrical Service Panel Upgrades: Upgrade your electrical system for increased safety and efficiency. 100Amp, 200Amp panel upgrades • Meter installations or replacements • Landscape and Outdoor Lighting • Troubleshooting Power Outages: We identify and address electrical issues promptly to restore power to your home. • Pool/Hot Tub Connections • Circuit Breakers: Installation, repair, and maintenance • Electrical Wiring and Repairs • Lighting indoor/outdoor • Appliance connections • Undercounter lighting: • EV charge stations: Contact TFC Electric Inc. for Free estimates at 631-589-2800

"Great product install"

Andy S on July 2024


Avatar for Good Light Electrical Service
Good Light Electrical Service
62 Crossbar Road
5.00(
3
)
Approved Pro
Good Light Electrical Service
62 Crossbar Road
5.00(
3
)
Approved Pro
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
27 local quotes requested

I'm licensed in Suffolk County NY, and have plenty of experience - 20+ years. I never cut corners. My goal is to make sure my customers are 100% satisfied.

"Andrew was great he came over at the time he said he would. wiped his feet before coming in. He replaced a few outlets and added a new outlet to my hallway. After every job he cleaned up after. I would recommend and use Andrew again."

Jeff S on June 2024

I'm licensed in Suffolk County NY, and have plenty of experience - 20+ years. I never cut corners. My goal is to make sure my customers are 100% satisfied.

"Andrew was great he came over at the time he said he would. wiped his feet before coming in. He replaced a few outlets and added a new outlet to my hallway. After every job he cleaned up after. I would recommend and use Andrew again."

Jeff S on June 2024


American Electrical Standard
9219 State Highway 357
4.98(
81
)
Approved Pro
American Electrical Standard
9219 State Highway 357
4.98(
81
)
Approved Pro
Customers say: True professional
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
36 local quotes requested

We are a licensed and insured Veteran owned and operated business. We do all phases of electrical work. From installing an outlet, light, ceiling fan, changing out a panel, pools, kitchen remodels, extensions, new builds and commercial projects. We look forward to providing you the highest quality of electrical work at a competitive price.

"Mr. Baumart was very prompt to my call. He is genuine, great work ethic, and honest. work he did for us: Rerun garage/basement lighting circuitry and hardwire lighting by removing old receptacle and plug configuration. Install 3 way switch at garage door entry and base of basement stairs. Relocate existing light fixtures to evenly spread light throughout, box and safe off all existing open splices and remove all extension cords feeding light fixtures. Disconnect furnace feeding basement and pool room. Relocate thermostat for pool room heat. Troubleshoot gfci protection throughout kitchen receptacles and bathroom. Replace breakers that feed bathroom and kitchen receptacles with gfci breakers. Install single gang old work box for switch controlled receptacle in living room. Remove indoor wiring outside on deck and reinstall pvc conduit with outdoor rated box with gfci receptacle. Replace t-12 lamps with led bypass lamp"

Henry C on July 2024

We are a licensed and insured Veteran owned and operated business. We do all phases of electrical work. From installing an outlet, light, ceiling fan, changing out a panel, pools, kitchen remodels, extensions, new builds and commercial projects. We look forward to providing you the highest quality of electrical work at a competitive price.

"Mr. Baumart was very prompt to my call. He is genuine, great work ethic, and honest. work he did for us: Rerun garage/basement lighting circuitry and hardwire lighting by removing old receptacle and plug configuration. Install 3 way switch at garage door entry and base of basement stairs. Relocate existing light fixtures to evenly spread light throughout, box and safe off all existing open splices and remove all extension cords feeding light fixtures. Disconnect furnace feeding basement and pool room. Relocate thermostat for pool room heat. Troubleshoot gfci protection throughout kitchen receptacles and bathroom. Replace breakers that feed bathroom and kitchen receptacles with gfci breakers. Install single gang old work box for switch controlled receptacle in living room. Remove indoor wiring outside on deck and reinstall pvc conduit with outdoor rated box with gfci receptacle. Replace t-12 lamps with led bypass lamp"

Henry C on July 2024


Stone Electric
994 Fulton Street
4.76(
17
)
Approved Pro
Stone Electric
994 Fulton Street
4.76(
17
)
Approved Pro
Customers say: Quality work
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
42 local quotes requested

We guarantee your satisfaction and we won’t leave until the job it 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.

"Shaun and his guys worked at my house for over a 6 month time period due to a large leak that caused my 2 bathrooms, kitchen and basement to be ripped out. Throughout the entire process he made sure to show up with his guys and walk both my husband and I through what we wanted done and how they were going to do the work. All of the guys that he had work for him were respectful and cleaned up after themselves. They were always on time and also they were very good with my German Shepard puppy who it was not always to keep in contained areas. Throughout the project we kept adding more things on and the whole team was absolutely amazing and always doubled checked with us for all the changes we would make and make sure it was to our satisfaction. I would highly highly recommend this company to anyone and everyone. If you want someone that will answer the phone and be there when things are rough this is the company for you! I don't know what we would have done without Shauns guidance and help throughout this entire process."

cynthia M on February 2022

We guarantee your satisfaction and we won’t leave until the job it 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.

"Shaun and his guys worked at my house for over a 6 month time period due to a large leak that caused my 2 bathrooms, kitchen and basement to be ripped out. Throughout the entire process he made sure to show up with his guys and walk both my husband and I through what we wanted done and how they were going to do the work. All of the guys that he had work for him were respectful and cleaned up after themselves. They were always on time and also they were very good with my German Shepard puppy who it was not always to keep in contained areas. Throughout the project we kept adding more things on and the whole team was absolutely amazing and always doubled checked with us for all the changes we would make and make sure it was to our satisfaction. I would highly highly recommend this company to anyone and everyone. If you want someone that will answer the phone and be there when things are rough this is the company for you! I don't know what we would have done without Shauns guidance and help throughout this entire process."

cynthia M on February 2022


Ryder Electric
810 Deer Park Rd
5.00(
2
)
Approved Pro
Ryder Electric
810 Deer Park Rd
5.00(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
49 local quotes requested

Our team of Electricians is skilled, professional, and conscientious with years of experience dealing with the unforeseeable circumstances the commercial and residential Industries present. In addition, we partner with teams of architects, engineers, contractors, manufacturers and suppliers to further, strengthen our foundation in the industry. Each new customer that we work with is welcomed with a lifelong commitment to brighten their lives along the way. We care about what we do and it shows!

"It went very well. Derick was prompted, knowledgeable, and friendly."

Felix V on August 2024

Our team of Electricians is skilled, professional, and conscientious with years of experience dealing with the unforeseeable circumstances the commercial and residential Industries present. In addition, we partner with teams of architects, engineers, contractors, manufacturers and suppliers to further, strengthen our foundation in the industry. Each new customer that we work with is welcomed with a lifelong commitment to brighten their lives along the way. We care about what we do and it shows!

"It went very well. Derick was prompted, knowledgeable, and friendly."

Felix V on August 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.
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.
Boy and girl jumping on the couch sofa
Apr 1, 2025
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A whole house generator can keep your home running during a power outage, but can it handle the energy demands of an air conditioner? Here’s what to consider.
A natural gas generator outside a house
Apr 1, 2025
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Natural gas generators emit carbon monoxide, a harmful gas. Learn about what carbon monoxide is and tips to operate your generator safely.
A house generator in the backyard of a house
Apr 1, 2025
Apr 1, 2025
Is a whole-house generator worth it? Discover the key factors influencing ROI and whether it's the right choice for your home.
outdoor diesel power generator
Apr 1, 2025
Apr 1, 2025
Diesel remains a popular fuel option for a variety of home generators, but you will need to plan your maintenance carefully. Here’s how it works.
emergency power supply outside home
Apr 4, 2025
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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.