Get matched with top generator installers in Woodbury, NY
There are 9 highly-rated local generator installers.
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TRUSTED BY HOMEOWNERS
4.5 
22 Generator installers in Woodbury
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.
"We used Generation Green to install a dedicated new line/outlet receptacle for a refrigerator, install a generator transfer switch for a portable generator, replace 2 light fixtures, and perform a service upgrade involving a new breaker panel installation. John and Dave were great to work with - they explained everything fully (options, functionality, recommendations) and performed quality work. We were extremely pleased with their final work, and they were a pleasure to work with. I will definitely will have them back for my future electrical projects and heartily recommend them to others."
Rich S on August 2020
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.
"We used Generation Green to install a dedicated new line/outlet receptacle for a refrigerator, install a generator transfer switch for a portable generator, replace 2 light fixtures, and perform a service upgrade involving a new breaker panel installation. John and Dave were great to work with - they explained everything fully (options, functionality, recommendations) and performed quality work. We were extremely pleased with their final work, and they were a pleasure to work with. I will definitely will have them back for my future electrical projects and heartily recommend them to others."
Rich S on August 2020
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
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
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.
"He came yesterday and finished the whole thing. He was five minutes early and he didn't take any breaks and he didn't stop for lunch and he worked 6 hours straight. He was great. He was really pleasant and really easy to work with. I would highly recommend it and would definitely use them again."
Linda B on April 2025
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.
"He came yesterday and finished the whole thing. He was five minutes early and he didn't take any breaks and he didn't stop for lunch and he worked 6 hours straight. He was great. He was really pleasant and really easy to work with. I would highly recommend it and would definitely use them again."
Linda B on April 2025
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
** '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
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
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!
"Another terrific team just left my home after summer a/c service at our home Always respectful and on time Answered all my questions and will advise us on contractor for vent cleaning Glad we use this terrific company"
John B on April 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!
"Another terrific team just left my home after summer a/c service at our home Always respectful and on time Answered all my questions and will advise us on contractor for vent cleaning Glad we use this terrific company"
John B on April 2025
GT Dynamics Electric Inc. is a New York City licensed and insured company that provides prompt, precise, and efficient electrical installation services. We specialize in residential, commercial, and industrial electrical work. Our team of experienced electricians is dedicated to meeting the needs of our customers. Ranging from an outlet to any size service, troubleshooting an existing electrical problem to name a few.
"Great and professional. Very clean and neat . All the lights , switches are working perfectly well. He is a great master electrician . He works with you . Very reasonable price"
Macdonald e on November 2024
GT Dynamics Electric Inc. is a New York City licensed and insured company that provides prompt, precise, and efficient electrical installation services. We specialize in residential, commercial, and industrial electrical work. Our team of experienced electricians is dedicated to meeting the needs of our customers. Ranging from an outlet to any size service, troubleshooting an existing electrical problem to name a few.
"Great and professional. Very clean and neat . All the lights , switches are working perfectly well. He is a great master electrician . He works with you . Very reasonable price"
Macdonald e on November 2024
We're a family owned & operated electrical services company specializing in residential jobs in the Five Boroughs, Nassau & Suffolk Counties. At Duffy Electric, we’re dedicated to illuminating lives and empowering businesses with top-tier electrical solutions with over a decade of experience. Based in Nassau & Suffolk Counties and extending our expertise across the coast. We specialize in a wide range of electrical services tailored to meet the unique needs of our community. Our Mission: To provide reliable, efficient, and innovative electrical services that ensure safety, enhance convenience, and support the growth of local homes and businesses. Our Services: Residential Electrical Installations: From new construction wiring to smart home upgrades, our certified electricians bring light and comfort to your living space. Commercial Electrical Solutions: We power your business success with custom electrical designs, energy-efficient lighting, and preventive maintenance programs. Why Choose Duffy Electric? Local Expertise: As residents of Nassau & Suffolk Counties, we have a personal stake in the well-being of our neighborhoods and the success of local enterprises. Quality Craftsmanship: Our work reflects our commitment to excellence, with every project completed to the highest industry standards. Customer-Centric Approach: We listen, we understand, and we deliver electrical services that align with your vision and requirements. Safety & Sustainability: Safety is our top priority. We adhere to strict safety protocols and stay abreast of the latest eco-friendly practices to promote a sustainable future. Get Connected: Ready to experience the Duffy Electric difference? Contact us for a consultation and let’s energize your electrical projects!
"Very professional! Would definitely hire again. Highly recommended!!!"
Adriana C on November 2024
We're a family owned & operated electrical services company specializing in residential jobs in the Five Boroughs, Nassau & Suffolk Counties. At Duffy Electric, we’re dedicated to illuminating lives and empowering businesses with top-tier electrical solutions with over a decade of experience. Based in Nassau & Suffolk Counties and extending our expertise across the coast. We specialize in a wide range of electrical services tailored to meet the unique needs of our community. Our Mission: To provide reliable, efficient, and innovative electrical services that ensure safety, enhance convenience, and support the growth of local homes and businesses. Our Services: Residential Electrical Installations: From new construction wiring to smart home upgrades, our certified electricians bring light and comfort to your living space. Commercial Electrical Solutions: We power your business success with custom electrical designs, energy-efficient lighting, and preventive maintenance programs. Why Choose Duffy Electric? Local Expertise: As residents of Nassau & Suffolk Counties, we have a personal stake in the well-being of our neighborhoods and the success of local enterprises. Quality Craftsmanship: Our work reflects our commitment to excellence, with every project completed to the highest industry standards. Customer-Centric Approach: We listen, we understand, and we deliver electrical services that align with your vision and requirements. Safety & Sustainability: Safety is our top priority. We adhere to strict safety protocols and stay abreast of the latest eco-friendly practices to promote a sustainable future. Get Connected: Ready to experience the Duffy Electric difference? Contact us for a consultation and let’s energize your electrical projects!
"Very professional! Would definitely hire again. Highly recommended!!!"
Adriana C on November 2024
Verified Reviews for Generator Installation pros in Woodbury, NY
*The Angi rating for Generator Installation companies in Woodbury, NY is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Generator Installation needs.
*The HomeAdvisor rating for Generator Installation companies in Woodbury, NY is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Generator Installation needs.
Last update on April 18, 2025
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
- Syosset
- Plainview
- Melville
- Hicksville
- Cold Spring Harbor
- Jericho
- East Norwich
- Huntington Station
- Old Bethpage
- Oyster Bay
- Huntington
- Lloyd Harbor
- Huntington Bay
- Dix Hills
- Bethpage
- Farmingdale
- Greenlawn
- Levittown
- Mill Neck
- Wyandanch
- Old Westbury
- Westbury
- Centerport
- Brookville
- Bayville
- East Meadow
- Deer Park
- Greenvale
- East Northport
- Locust Valley
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