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TRUSTED BY MIDDLE ISLAND, NY HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon21
    Verified generator installs reviews

Find Generator install pros in Middle Island

Avatar for Dependable Electrical

Dependable Electrical

92 Westminster Drive
5.00(
22
)
Approved Pro

Dependable Electrical

92 Westminster Drive
5.00(
22
)
Approved Pro
Customers say: Quality work
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
64 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.

"Awesome…could not praise the work and the help enough. Very thorough and diligent and caring. I would be happy to talk with anyone who needs a review about this company…you could give them my phone number. I will be using this company from now on and recommending them to everyone."

Katie P on September 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.

"Awesome…could not praise the work and the help enough. Very thorough and diligent and caring. I would be happy to talk with anyone who needs a review about this company…you could give them my phone number. I will be using this company from now on and recommending them to everyone."

Katie P on September 2025


"Great job done. Arrived on time, got the job done in a timely manner. Very professional and knowledgeable. Would definitely use again and highly recommend him. Thanks Anthony!"

Gean M on August 2025

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

"Great job done. Arrived on time, got the job done in a timely manner. Very professional and knowledgeable. Would definitely use again and highly recommend him. Thanks Anthony!"

Gean M on August 2025


Avatar for Ryder Electric

Ryder Electric

810 Deer Park Rd
5.00(
3
)
Approved Pro

Ryder Electric

810 Deer Park Rd
5.00(
3
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
45 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!

"Great;however I never received a receipt via e-mail for my payment"

Ralph C on September 2025

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!

"Great;however I never received a receipt via e-mail for my payment"

Ralph C on September 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
32 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 GenReady, Inc.

GenReady, Inc.

128 Pulaski Rd
4.65(
17
)
Approved Pro

GenReady, Inc.

128 Pulaski Rd
4.65(
17
)
Approved Pro
Customers say: Quality work
39 local quotes requested
46 years of experience

Gen Ready, Inc., was established in 1979 to service the surrounding area and provide residents with all their standby electric power solutions. Our staff of knowledgeable and dedicated professionals take pride in providing outstanding, personalized service to our customers and our community. All of our techs are factory trained and certified for warranty repair and maintenance. Call us today and become one of our many satisfied customers. You can visit us online at www.getgenready.com

"After getting several quotes, last year we hired GenReady to install a house generator. Ed, the owner of the company impressed us from the start. He was knowledgeable and patiently explained the process as well as answering our questions. We knew right away that GenReady was the company for us. Lindsay kept us up to date as we moved along in the process. Our generator was installed last July. Andrew and his team installed the generator with expertise and efficiency. They took care to leave our house and yard spotless. Lindsay and Andrew were always happy to answer my questions and address me concerns. We’ve needed the generator only once (thank goodness) when our power went out due to a necessary power line repair after a car crashed into a utility pole on our street. When the power went out, our generator turned on within seconds. Our house was up and running for the four hours the line repair took, and if it weren’t for the blink of lights, we never would have known our generator was running. Every other week, our generator self tests for a few minutes giving us peace mind that it will be here for us if and when we need it. Just like the generator, GenReady is a company that runs efficiently and seamlessly. Just today, Lindsay called to tell me someone would be coming tomorrow to change the oil which reminded me that I am long overdue in submitting this well deserved rave review. Thank you to the entire GenReady team (and to Great White Propane) for all you’ve done to help us know we can weather any power outage."

Nancy A on July 2020

Gen Ready, Inc., was established in 1979 to service the surrounding area and provide residents with all their standby electric power solutions. Our staff of knowledgeable and dedicated professionals take pride in providing outstanding, personalized service to our customers and our community. All of our techs are factory trained and certified for warranty repair and maintenance. Call us today and become one of our many satisfied customers. You can visit us online at www.getgenready.com

"After getting several quotes, last year we hired GenReady to install a house generator. Ed, the owner of the company impressed us from the start. He was knowledgeable and patiently explained the process as well as answering our questions. We knew right away that GenReady was the company for us. Lindsay kept us up to date as we moved along in the process. Our generator was installed last July. Andrew and his team installed the generator with expertise and efficiency. They took care to leave our house and yard spotless. Lindsay and Andrew were always happy to answer my questions and address me concerns. We’ve needed the generator only once (thank goodness) when our power went out due to a necessary power line repair after a car crashed into a utility pole on our street. When the power went out, our generator turned on within seconds. Our house was up and running for the four hours the line repair took, and if it weren’t for the blink of lights, we never would have known our generator was running. Every other week, our generator self tests for a few minutes giving us peace mind that it will be here for us if and when we need it. Just like the generator, GenReady is a company that runs efficiently and seamlessly. Just today, Lindsay called to tell me someone would be coming tomorrow to change the oil which reminded me that I am long overdue in submitting this well deserved rave review. Thank you to the entire GenReady team (and to Great White Propane) for all you’ve done to help us know we can weather any power outage."

Nancy A on July 2020


J.A. WOOD ELECTRICAL CONTRACTORS INC.

31 Circle Dr
New on AngiNew on Angi
Approved Pro

J.A. WOOD ELECTRICAL CONTRACTORS INC.

31 Circle Dr
New on AngiNew on Angi
Approved Pro
5 years of experience

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.

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.


Avatar for A/C Performance Power, Inc.

A/C Performance Power, Inc.

151 Plitt Avenue
5.00(
4
)
Approved Pro

A/C Performance Power, Inc.

151 Plitt Avenue
5.00(
4
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
8 years of experience

A/C Performance Power, Inc., offers 20 years of experience in the generator industry. We specialize in residential, marine and commercial generator service and repair. We offer ,Sales service contracts and installations. We work on all makes ,models and sizes .We are Natural Gas and Diesel engine Specialists.We're committed to providing a personalized service for each individual project we take on & look forward to building strong, long-term relationships with our clients and guarantee your satisfaction.

"I just had my generator repaired by Jim Birch, owner of AC Performance Power. This is the company to use. He actually answers your texts, and He takes your call. He shows up when he tells you. Whether it's 6 am or 10 pm. He or one of his guys (blade the Man) will be there. Not only does he do the job, you know he does it right. It's the busiest season, so Jim and his team work long days to finish the job. I had a really difficult short in my generator, and in the end, Jim needed to field-fix my PC board. I am back up and running. 5 stars to Jim and his crew."

Robert C on July 2023

A/C Performance Power, Inc., offers 20 years of experience in the generator industry. We specialize in residential, marine and commercial generator service and repair. We offer ,Sales service contracts and installations. We work on all makes ,models and sizes .We are Natural Gas and Diesel engine Specialists.We're committed to providing a personalized service for each individual project we take on & look forward to building strong, long-term relationships with our clients and guarantee your satisfaction.

"I just had my generator repaired by Jim Birch, owner of AC Performance Power. This is the company to use. He actually answers your texts, and He takes your call. He shows up when he tells you. Whether it's 6 am or 10 pm. He or one of his guys (blade the Man) will be there. Not only does he do the job, you know he does it right. It's the busiest season, so Jim and his team work long days to finish the job. I had a really difficult short in my generator, and in the end, Jim needed to field-fix my PC board. I am back up and running. 5 stars to Jim and his crew."

Robert C on July 2023


Avatar for OptimizedVoIP

OptimizedVoIP

107-45 Union Hall Street
5.00(
13
)
Approved Pro

OptimizedVoIP

107-45 Union Hall Street
5.00(
13
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
10 years of experience

Call 212-779-4188 & talk with an Engineer. We provide complete phone service (on-premise phone system, toll-free and local number, fax, phone line, data/voice wiring, etc...).Through our innovative communication solutions, you're able to stay connected anywhere, anytime. Designed specifically to meet your small business needs. We believe in upfront honesty and of course, our estimates are free of charge.

"Iâ m very happy I found this company to do business with. They were able to diagnose and solve my problem. Very knowledgeable and professional. Highly recommended."

Joe N on July 2022

Call 212-779-4188 & talk with an Engineer. We provide complete phone service (on-premise phone system, toll-free and local number, fax, phone line, data/voice wiring, etc...).Through our innovative communication solutions, you're able to stay connected anywhere, anytime. Designed specifically to meet your small business needs. We believe in upfront honesty and of course, our estimates are free of charge.

"Iâ m very happy I found this company to do business with. They were able to diagnose and solve my problem. Very knowledgeable and professional. Highly recommended."

Joe N on July 2022


Avatar for AvenueBits

AvenueBits

3330 Veterans Memorial Highway, Suite 1
5.00(
3
)
Approved Pro

AvenueBits

3330 Veterans Memorial Highway, Suite 1
5.00(
3
)
Approved Pro
Customers say: Quick response
10 years of experience
Free onsite estimate

AvenueBITS provides quality and professional Computer Networks and Telephone Systems services for Bohemia, NY, and surrounding areas. We can handle any project and look forward to working with you. Don't hesitate to give us a call, schedule an installation or service, and leave a review to let us know how we did.

"Gustavo was professional,knowledgeable and efficient. The work was done in a timely manner and he gave me some ideas on how to improve my business while saving money."

Geoff H on May 2020

AvenueBITS provides quality and professional Computer Networks and Telephone Systems services for Bohemia, NY, and surrounding areas. We can handle any project and look forward to working with you. Don't hesitate to give us a call, schedule an installation or service, and leave a review to let us know how we did.

"Gustavo was professional,knowledgeable and efficient. The work was done in a timely manner and he gave me some ideas on how to improve my business while saving money."

Geoff H on May 2020


Avatar for Techsonduty

Techsonduty

1155 Slabey Avenue
4.50(
12
)
Approved Pro

Techsonduty

1155 Slabey Avenue
4.50(
12
)
Approved Pro
Customers say: Quality work
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
14 years of experience

Techsonduty covers Long Island and specializes in many areas of IT services such as computer repair, laptop repair, apple repairs, macbook repairs, laptop screen repair, computer virus/malware removal, website design, SEO, computer/network wiring, and security camera system installations. We support both homes and businesses across Nassau county and Long Island. Techsonduty was founded to be the market leader delivering Technology-as-a-Service to small and medium businesses and residential homes near the Long Island NY area. Our purpose is to make technology work for business by radically improving their technology and providing solutions to move them into the future. Our portfolio of computer services includes network security, all computer services, structured cabling, VOIP phone systems, on-site engineer services, internet, email, remote data back-up & restore, business continuity & disaster recovery, telecommunications and infrastructure supply & support.

"Steve is absolutely first-rate. Extremely knowledgeable, helpful, and enthusiastic about really getting it right. Takes time and care with the project. Highest recommendation."

P D on March 2019

Techsonduty covers Long Island and specializes in many areas of IT services such as computer repair, laptop repair, apple repairs, macbook repairs, laptop screen repair, computer virus/malware removal, website design, SEO, computer/network wiring, and security camera system installations. We support both homes and businesses across Nassau county and Long Island. Techsonduty was founded to be the market leader delivering Technology-as-a-Service to small and medium businesses and residential homes near the Long Island NY area. Our purpose is to make technology work for business by radically improving their technology and providing solutions to move them into the future. Our portfolio of computer services includes network security, all computer services, structured cabling, VOIP phone systems, on-site engineer services, internet, email, remote data back-up & restore, business continuity & disaster recovery, telecommunications and infrastructure supply & support.

"Steve is absolutely first-rate. Extremely knowledgeable, helpful, and enthusiastic about really getting it right. Takes time and care with the project. Highest recommendation."

P D on March 2019

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Generator Install questions, answered by experts

Generators run on a variety of fuel types, ranging from natural gas to solar power. Keep in mind that fuel costs varying by type:

  • Natural gas: $2,000–$21,000 per year 

  • Liquid propane: $2,000–$21,000 per year

  • Diesel: $3,000–$20,000 per year

  • Gasoline: $500–$3,000 per year

  • Solar generator: $2,000–$25,000 per unit

  • Battery backup: $10,000–$25,000 per unit

Sizing a generator is a careful process that requires calculating the electrical load of your entire house. You have to take into account every device you want to use and their wattage requirements, plus the wattage needed to start them, and look for a generator that can safely run all that at around 80% capacity.

In more practical terms, a small home can run on a 10,000-watt generator (and if you only want to power a few key appliances, much less than that). A mid-sized home may need something between 15,000 and 22,000 watts. Larger homes require 25,000 watts or more. 

Energy output depends on turbine size, average wind speed at your site, and system efficiency. A 5 kW turbine in a good wind location can generate 8,000 to 12,000 kilowatt-hours per year, which may cover a large portion of an average home’s needs. Accurate output estimates require a professional wind assessment and a review of your household’s energy usage patterns.

It might seem counterintuitive, but installing a generator transfer switch will save you money in the long run. While you’ll have to pay between $400 and $2,500 to have the transfer switch installed, you’ll recoup that amount later on when you don’t have to pay for expensive repairs to your appliances, devices, and electrical system that may have burned out, overloaded, or stopped working due to a sudden loss of power or an incorrect hook up of a generator to your home

The amount of time a standby generator can run continuously is around 3,000 hours on average. However, standby generators can generally run indefinitely as long as they have a continuous fuel supply. Generators hooked up to a home’s natural gas supply are the best option for extended usage, as these won’t rely on a finite fuel supply based on how much you have in storage. Generators running on liquid propane or diesel won’t last as long, as these require fuel storage and regular refueling to stay running.

The Middle Island, NY homeowners’ guide to generator installs

From average costs to expert advice, get all the answers you need to get your job done.