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There are 3 highly-rated local generator install pros.

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  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon22
    Verified generator installs reviews

Verified Reviews for Generator Install pros in East Williston, NY

*The Angi rating for Generator Install companies in East Williston, NY is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Generator Install needs.

*The HomeAdvisor rating for Generator Install companies in East Williston, NY is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Generator Install needs.

Last update on October 04, 2025

Find Generator install pros in East Williston

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
33 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

Avatar for BQ Electric Inc

BQ Electric Inc

21 Holman Boulevard
4.90(
392
)
•Approved Pro

BQ Electric Inc

21 Holman Boulevard
4.90(
392
)
•Approved Pro
Customers say: Quality work
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
69 local quotes requested

** '13, '14, '15, '16, '17 & '18 SUPER SERVICE AWARD WINNER **. Named "Service Provider of the Year" by Angie's List, 2013. Welcome to "Long Island's most respected leader in electrical home improvements". Our team takes pride in our 110% customer satisfaction guarantee. We feel the best compliment you can get as a company is a recommendation to a satisfied customer's friend or family member. All our jobs start off with a written estimate and a visit to your home/job to review the details. We understand that your time is very valuable so all our appointments are confirmed the night before and again 15 minutes prior to our arrival. All of our work and material is warranted for 1 year. Give us the opportunity to impress you, and we won't let you down! So, please call us today and set up a free estimate for your next project.

"Was not a big job, but the work was done efficiently and staff was knowledgeable and responded to all questions. I would definitely call them in future."

Edward C on February 2023

** '13, '14, '15, '16, '17 & '18 SUPER SERVICE AWARD WINNER **. Named "Service Provider of the Year" by Angie's List, 2013. Welcome to "Long Island's most respected leader in electrical home improvements". Our team takes pride in our 110% customer satisfaction guarantee. We feel the best compliment you can get as a company is a recommendation to a satisfied customer's friend or family member. All our jobs start off with a written estimate and a visit to your home/job to review the details. We understand that your time is very valuable so all our appointments are confirmed the night before and again 15 minutes prior to our arrival. All of our work and material is warranted for 1 year. Give us the opportunity to impress you, and we won't let you down! So, please call us today and set up a free estimate for your next project.

"Was not a big job, but the work was done efficiently and staff was knowledgeable and responded to all questions. I would definitely call them in future."

Edward C on February 2023

Avatar for JDM Electric INC.

JDM Electric INC.

15A Rose Ave
4.86(
65
)
•Approved Pro

JDM Electric INC.

15A Rose Ave
4.86(
65
)
•Approved Pro
Customers say: Super punctual
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
50 local quotes requested

JDM Electric has been serving the community for 12 years! Located in Glen Cove, New York, our small organization primarily operates in the electrical work sector.

"We love JD Electric. John DiMiceli is extremely professional and fair. His team is top notch. We would use JD electric for all electrical work."

Stuart W on August 2020

JDM Electric has been serving the community for 12 years! Located in Glen Cove, New York, our small organization primarily operates in the electrical work sector.

"We love JD Electric. John DiMiceli is extremely professional and fair. His team is top notch. We would use JD electric for all electrical work."

Stuart W on August 2020

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
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!

"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 Newgrange Electric Inc.

Newgrange Electric Inc.

111F Roosevelt Ave
4.64(
69
)
•Approved Pro

Newgrange Electric Inc.

111F Roosevelt Ave
4.64(
69
)
•Approved Pro
Customers say: Super punctual
44 local quotes requested
17 years of experience

Owned & operated by Edward Byrne. Centrally located in NYC, we serve all of Long Island, the five boroughs (NYC, Brooklyn, Queens, Bronx and Staten Island) and Westchester. We offer 24-hour emergency service, free estimates, quick response times, reasonable rates on service calls and competitive pricing on larger jobs.

"They did a great job for me."

Michael D on December 2021

Owned & operated by Edward Byrne. Centrally located in NYC, we serve all of Long Island, the five boroughs (NYC, Brooklyn, Queens, Bronx and Staten Island) and Westchester. We offer 24-hour emergency service, free estimates, quick response times, reasonable rates on service calls and competitive pricing on larger jobs.

"They did a great job for me."

Michael D on December 2021

Avatar for Universe Home Services

Universe Home Services

3782 Merrick Rd
4.53(
444
)
•Approved Pro

Universe Home Services

3782 Merrick Rd
4.53(
444
)
•Approved Pro
Customers say: Super punctual
510 local quotes requested
71 years of experience

Since 1954, Universe Home Services has been proudly serving the Nassau County community and customers throughout the entire region. With Universe Home Services, one call solves it all! Their highly trained technicians offer everything from heating and air conditioning to plumbing to appliance repair and electrical services on Long Island and beyond. Whether you’re dealing with an inefficient heating system, a noisy air conditioner, clogged toilet, broken dishwasher, or outdated electrical service panel, you can get the fast, affordable service you need with Universe Home Services. They go above and beyond to ensure that you’re completely satisfied with the quality of their work, offering service guarantees and parts and labor guarantees on new HVAC installations. As a family owned and operated company, Universe Home Services believes in top-quality customer service. They always treat you and your property with respect, working quickly, cleanly, and efficiently to minimize your inconvenience and leave your home in pristine condition. With more than 60 years of experience under their belt, and a commitment to unmatched quality, honesty, and expertise, Universe Home Services is the trusted name for heating, air conditioning, electrical, plumbing, and appliance repair on Long Island and beyond! Call today!

"This was the worst experience i have ever had with a company. They came and damaged my house and kept us without AC for days. They admitted to the extensive damage and went weeks before attempting to repair it. The services were never fully completed and they were paid over 90% of the job. I disputed the last 10% and provided overwhelming evidence of their negligence. And after a year their last ditch effort was to send collections letters. Don't walk, RUN from this company. I will provide pics and my my experience to anyone who is planning on using this company. Used to be family owned and was amazing. Second they sold it went downhill fast."

Marshall R on June 2025

Since 1954, Universe Home Services has been proudly serving the Nassau County community and customers throughout the entire region. With Universe Home Services, one call solves it all! Their highly trained technicians offer everything from heating and air conditioning to plumbing to appliance repair and electrical services on Long Island and beyond. Whether you’re dealing with an inefficient heating system, a noisy air conditioner, clogged toilet, broken dishwasher, or outdated electrical service panel, you can get the fast, affordable service you need with Universe Home Services. They go above and beyond to ensure that you’re completely satisfied with the quality of their work, offering service guarantees and parts and labor guarantees on new HVAC installations. As a family owned and operated company, Universe Home Services believes in top-quality customer service. They always treat you and your property with respect, working quickly, cleanly, and efficiently to minimize your inconvenience and leave your home in pristine condition. With more than 60 years of experience under their belt, and a commitment to unmatched quality, honesty, and expertise, Universe Home Services is the trusted name for heating, air conditioning, electrical, plumbing, and appliance repair on Long Island and beyond! Call today!

"This was the worst experience i have ever had with a company. They came and damaged my house and kept us without AC for days. They admitted to the extensive damage and went weeks before attempting to repair it. The services were never fully completed and they were paid over 90% of the job. I disputed the last 10% and provided overwhelming evidence of their negligence. And after a year their last ditch effort was to send collections letters. Don't walk, RUN from this company. I will provide pics and my my experience to anyone who is planning on using this company. Used to be family owned and was amazing. Second they sold it went downhill fast."

Marshall R on June 2025

Ez Network Cabling, Inc

11550 175th St
5.00(
2
)
•Approved Pro

Ez Network Cabling, Inc

11550 175th St
5.00(
2
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
3 years of experience

We specialize in appliance repair for a variety of major brand appliances including, but not limited to, LG, Samsung, Maytag, Whirlpool, Viking, and Subzero. Our services are customized to the individual project, paying close attention to the details of each project that we're involved with. We look forward to building long-term relationships with our clients and guarantee your satisfaction! We offer a 24 HOUR EMERGENCY SERVICE as well as a ONE YEAR WARRANTY on our appliance repair services.

"Professional, knowledgeable and competent"

Christian B on September 2022

We specialize in appliance repair for a variety of major brand appliances including, but not limited to, LG, Samsung, Maytag, Whirlpool, Viking, and Subzero. Our services are customized to the individual project, paying close attention to the details of each project that we're involved with. We look forward to building long-term relationships with our clients and guarantee your satisfaction! We offer a 24 HOUR EMERGENCY SERVICE as well as a ONE YEAR WARRANTY on our appliance repair services.

"Professional, knowledgeable and competent"

Christian B on September 2022

Avatar for KM Communications NY

KM Communications NY

PO Box 856
5.00(
4
)
•Approved Pro

KM Communications NY

PO Box 856
5.00(
4
)
•Approved Pro
Customers say: Quick response
5 years of experience
Free onsite estimate

KM Communications is dedicated to providing our customers with the best quality and craftsmanship. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations.

"Kevin was a prompt communicator, the quality of his work was excellent and his fees were very reasonable."

Joe M on October 2022

KM Communications is dedicated to providing our customers with the best quality and craftsmanship. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations.

"Kevin was a prompt communicator, the quality of his work was excellent and his fees were very reasonable."

Joe M on October 2022

Avatar for JSK Plus Corp.

JSK Plus Corp.

5336 192nd Street, #1R
5.00(
7
)
•Approved Pro

JSK Plus Corp.

5336 192nd Street, #1R
5.00(
7
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
15 years of experience

Thank you for visiting JSK Plus, Inc. We are your locally owned and operated alarm and security systems specialists based in Fresh Meadows, NY. We are licensed and insured to service the entire NYC Metro area and all of Long Island. Contact us now for your free estimate--we look forward to working with you soon!

"Professional, fast and neat. I would highly recommend JSK interiors."

Joe Z on October 2020

Thank you for visiting JSK Plus, Inc. We are your locally owned and operated alarm and security systems specialists based in Fresh Meadows, NY. We are licensed and insured to service the entire NYC Metro area and all of Long Island. Contact us now for your free estimate--we look forward to working with you soon!

"Professional, fast and neat. I would highly recommend JSK interiors."

Joe Z on October 2020

Avatar for Hephaestus Renovation

Hephaestus Renovation

9432 46th Ave
5.00(
2
)
•Approved Pro

Hephaestus Renovation

9432 46th Ave
5.00(
2
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
8 years of experience

Hephaestus is your go-to service professionals for all residential and commercial areas. We provide services like Interior Painting, Cabinet Installation. Flooring Installation, Custom Closet Organization, and TV wall mount. We do it all and more! We have professional technicians that specialize in their fields so they can deliver the best craftsmanship and customer service to our clients! Contact us at [email protected] or call us! Visit our site for more info.

"Carlos was extremely attentive to what I needed for my closets and provided great recommendations as we were brainstorming different solutions for how to customize for my new condo. He was prompt in all of our correspondences and transparent about the entire process. I have a couple of oddly designed closet doors that we had to work around; but when the drawers I was hoping for weren't available, Carlos said that he would custom build to what I wanted! We hit a speedbump with me catching covid, but Carlos was very supportive and still came through to complete 2 out of the 3 closets I contracted him for while I stayed at the far opposite end of the condo. I was so grateful for the enthusiasm, professionalism, and straight up care Carlos and his partner put into this project. And I am LOVING the work that's been done so far! Can't wait to get better so that we could start back up on the master bedroom closet!"

Kissa F on January 2021

Hephaestus is your go-to service professionals for all residential and commercial areas. We provide services like Interior Painting, Cabinet Installation. Flooring Installation, Custom Closet Organization, and TV wall mount. We do it all and more! We have professional technicians that specialize in their fields so they can deliver the best craftsmanship and customer service to our clients! Contact us at [email protected] or call us! Visit our site for more info.

"Carlos was extremely attentive to what I needed for my closets and provided great recommendations as we were brainstorming different solutions for how to customize for my new condo. He was prompt in all of our correspondences and transparent about the entire process. I have a couple of oddly designed closet doors that we had to work around; but when the drawers I was hoping for weren't available, Carlos said that he would custom build to what I wanted! We hit a speedbump with me catching covid, but Carlos was very supportive and still came through to complete 2 out of the 3 closets I contracted him for while I stayed at the far opposite end of the condo. I was so grateful for the enthusiasm, professionalism, and straight up care Carlos and his partner put into this project. And I am LOVING the work that's been done so far! Can't wait to get better so that we could start back up on the master bedroom closet!"

Kissa F on January 2021

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Generator Install questions, answered by experts

Generator size requirements vary wildly among properties, but typical generator sizes are listed below based on home square footage:

  • 1,000 sq ft: 6–9 kW

  • 1,500 sq ft: 7–10 kW

  • 2,000 sq ft: 10–14kW

  • 2,500 sq ft: 12–16kW

  • 3,000 sq ft: 16–20kW+

Unfortunately, home square footage isn’t always a good indicator of generator size requirements. Instead, you should call in a professional to discuss which items in your home you’d like to run via your generator. They can calculate peak and average consumption for those items and then size your generator appropriately for optimal performance.

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. 

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.

The cost to install a whole-house generator averages at $5,200, but costs can range from $1,500 to $8,900, depending on the type and size of the generator, and the labor required to install it. To find the best deal while still ensuring the unit meets all the needs of your household, hire an electrician to calculate the electrical load of your must-have appliances and electronics beforehand so you don’t pay for more power than you need. As always, be sure to get at least three quotes to find the ideal fit for your needs and budget.

Generators are usually sized by running watts and starting watts. Ideally, you’ll want a generator that can offer both the necessary running watts and starting watts for everything you need to power without going beyond 90% of its capacity. Calculate your home’s electrical load based on the breakers in your home or adding up the appliance and lighting needs of connected rooms.

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The East Williston, NY homeowners’ guide to generator installs

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

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