Top-rated generator install pros.

Get matched with top generator install pros in Greenwich, NJ

There are 4 highly-rated local generator install pros.

Find Generator install pros in Greenwich

Avatar for Spotlight Solar, LLC

Spotlight Solar, LLC

1111 Park Drive
4.86(
134
)
Approved Pro

Spotlight Solar, LLC

1111 Park Drive
4.86(
134
)
Approved Pro
Customers say: Quick response
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
143 local quotes requested

Since 1987, Spotlight Energy Solutions (formerly Spotlight Electric) has provided an array of custom commercial and residential electrical services to customers throughout New Jersey, Pennsylvania, and Delaware. We continuously work hard to uphold our reputation of high-quality services, while simultaneously establishing a goal of building a greener future through renewable energy solutions. We're shaping your greener tomorrow through our quality connections today.

"1234"

Michael C on October 2023

Since 1987, Spotlight Energy Solutions (formerly Spotlight Electric) has provided an array of custom commercial and residential electrical services to customers throughout New Jersey, Pennsylvania, and Delaware. We continuously work hard to uphold our reputation of high-quality services, while simultaneously establishing a goal of building a greener future through renewable energy solutions. We're shaping your greener tomorrow through our quality connections today.

"1234"

Michael C on October 2023


Avatar for W B Lightning Rods

W B Lightning Rods

560 Peoples Plaza Unit 234
4.93(
297
)
Approved Pro

W B Lightning Rods

560 Peoples Plaza Unit 234
4.93(
297
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
257 local quotes requested

WB Lightning Rods is a third-generation lightning protection contractor. Family Owned and operated for over 60 years. installing U.L. Listed Lightning protection systems, All Over the East coast, Midwest south east and south west regions of the U.S. Installations on Residential Homes, Estate Properties, Agricultural and Equestrian Properties. Lightning Protection for trees is also available. No job to big or small References upon Request. Contact us today for a no cost or obligation estimate. We look forward to working with you on your Lightning Protection Project. Thank you. **WE ARE NOT ELECTRICIANS** **WE ONLY INSTALL LIGHTNING PROTECTION SYSTEMS **

"Great company, they were fast, friendly, & accommodating. I would definitely use them again."

Jennifer B on October 2024

WB Lightning Rods is a third-generation lightning protection contractor. Family Owned and operated for over 60 years. installing U.L. Listed Lightning protection systems, All Over the East coast, Midwest south east and south west regions of the U.S. Installations on Residential Homes, Estate Properties, Agricultural and Equestrian Properties. Lightning Protection for trees is also available. No job to big or small References upon Request. Contact us today for a no cost or obligation estimate. We look forward to working with you on your Lightning Protection Project. Thank you. **WE ARE NOT ELECTRICIANS** **WE ONLY INSTALL LIGHTNING PROTECTION SYSTEMS **

"Great company, they were fast, friendly, & accommodating. I would definitely use them again."

Jennifer B on October 2024


Avatar for Residential Generator Service LLC

Residential Generator Service LLC

204 CREEK RD
No reviews yet

Residential Generator Service LLC

204 CREEK RD
No reviews yet
3 years of experience

Residential Generator Service LLC is dedicated to the maintenance and repair of home standby generators. Similar to a car, generators require regular maintenance to function properly. We offer annual maintenance plans to keep your backup generator performing as intended. Our certified technicians are also available 24/7 for emergency service. Proudly serving NJ and eastern PA. RGS is a woman owned and operated company.

Residential Generator Service LLC is dedicated to the maintenance and repair of home standby generators. Similar to a car, generators require regular maintenance to function properly. We offer annual maintenance plans to keep your backup generator performing as intended. Our certified technicians are also available 24/7 for emergency service. Proudly serving NJ and eastern PA. RGS is a woman owned and operated company.



Avatar for Colonial Generators

Colonial Generators

473 South Henderson Rd
5.00(
1
)

Colonial Generators

473 South Henderson Rd
5.00(
1
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

We only carry the top brands with the best manufacturer warranties. Each generator is installed and serviced by our expert Colonial Generator installer team. Our focus is on providing the “best in class” generators with excellence in installation, service and maintenance. Our engineers go through rigorous training and each installation is backed by our service guarantee and the manufacturers warranty. From 7kW to 150kW we carry, install, service and monitor any size generator for home or business.

"Separate unit of Colonial Home Services locates in King of Prussia. 2 day installation, professional, thorough. Provide after install manintenance such as oil change (have not needed that yet)."

A B on June 2020

We only carry the top brands with the best manufacturer warranties. Each generator is installed and serviced by our expert Colonial Generator installer team. Our focus is on providing the “best in class” generators with excellence in installation, service and maintenance. Our engineers go through rigorous training and each installation is backed by our service guarantee and the manufacturers warranty. From 7kW to 150kW we carry, install, service and monitor any size generator for home or business.

"Separate unit of Colonial Home Services locates in King of Prussia. 2 day installation, professional, thorough. Provide after install manintenance such as oil change (have not needed that yet)."

A B on June 2020


Avatar for Horizon Services

Horizon Services

17 Roland Avenue
4.42(
76
)

Horizon Services

17 Roland Avenue
4.42(
76
)
Customers say: Super punctual
747 local quotes requested

Horizon Services is the region’s largest and most well respected plumbing, heating and air conditioning company, with nearly 600 employees serving tens of thousands of homeowners throughout Delaware, Southeastern Pennsylvania, Southern New Jersey, and Northeastern Maryland. After a quarter of a century in business, Horizon Services remains fully committed to setting the industry standard for customer service, installation, and focusing on things that are important to busy homeowners: respect for their time, their home and their property; up-front pricing, and an unconditional 100% money back guarantee.

"Peter was exceptional at his job, very knowledgeable. Inform me each step of the way during the process, very professional."

Keisha W on August 2025

Horizon Services is the region’s largest and most well respected plumbing, heating and air conditioning company, with nearly 600 employees serving tens of thousands of homeowners throughout Delaware, Southeastern Pennsylvania, Southern New Jersey, and Northeastern Maryland. After a quarter of a century in business, Horizon Services remains fully committed to setting the industry standard for customer service, installation, and focusing on things that are important to busy homeowners: respect for their time, their home and their property; up-front pricing, and an unconditional 100% money back guarantee.

"Peter was exceptional at his job, very knowledgeable. Inform me each step of the way during the process, very professional."

Keisha W on August 2025



Advanced Power Generation, LLC

950 Ridge Road
No reviews yet

Advanced Power Generation, LLC

950 Ridge Road
No reviews yet
9 years of experience

Sales, Service, Installation and Maintenance/Maintenance Contracts, Safety Inspections. With 25 Years experience and a commitment to continuing education and training, clean modern service fleet stocked with common repair and maintenance parts to keep you equipment up and running or getting it running in the event it does fail. we offer 24 HR service to our customers. see website for details.

Sales, Service, Installation and Maintenance/Maintenance Contracts, Safety Inspections. With 25 Years experience and a commitment to continuing education and training, clean modern service fleet stocked with common repair and maintenance parts to keep you equipment up and running or getting it running in the event it does fail. we offer 24 HR service to our customers. see website for details.



"Rod, the owner, and Scott came to my house to install lighting in my kitchen. They arrived on time and were very professional, personable and friendly. They were great. They were thorough and asked my opinion each step of the way as they updated the lighting during the install. They cleaned up after the install and it looked as they hadn't been there at all. They even went an extra step and replaced a bulb in one of my ceiling cans in the living room after the project was complete. These guys were amazing and I will call on them again for any of my electrical needs."

Christina W on December 2019

Residential and light commercial electrician.

"Rod, the owner, and Scott came to my house to install lighting in my kitchen. They arrived on time and were very professional, personable and friendly. They were great. They were thorough and asked my opinion each step of the way as they updated the lighting during the install. They cleaned up after the install and it looked as they hadn't been there at all. They even went an extra step and replaced a bulb in one of my ceiling cans in the living room after the project was complete. These guys were amazing and I will call on them again for any of my electrical needs."

Christina W on December 2019

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Generator Install questions, answered by experts

A 10,000-watt generator can run a small to mid-sized central AC unit (typically up to 3 tons or 36,000 BTU) along with a few other appliances. However, larger AC units or additional loads will require a bigger generator. Consult a local generator installer to ensure you add the correct size generator to your home.

You can determine what size generator you need by listing the various appliances it will power during an outage. Write down the start-up watt usage, and then add them all together. 

A 7,500-watt generator will run your refrigerator, freezer, well pump, and lighting circuits without a problem. However, you’ll need an extra 3,000 to 4,500 watts to run your water heater and another 5,000 to 25,000 watts to run your electric furnace. In these instances, a whole-home generator is your best bet for running your critical equipment.

As a safety measure, you should always turn off the main breaker while operating your generator’s backup breaker. In addition, you should also switch off all appliance breakers so you don't have a power surge when the main breaker turns back on. And finally, turning off the main breaker prevents back-feeding, which endangers utility workers with the risk of electrocution. Back-feeding could also destroy the electrical circuits of your neighbors if they use the same power network.

Costs range from $500 to $2,500, depending on generator type and installation complexity.

While standby generators provide essential backup power, they can fail when you need them most due to lack of maintenance, fuel supply issues, dead batteries, electrical problems, or improper installation. To avoid costly failures, professional installation and regular maintenance are crucial. Licensed technicians ensure safety, uphold warranty requirements, comply with regulations, and provide expert servicing.

The Greenwich, NJ 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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