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Verified Reviews for Generator Install pros in Hillside, NJ

*The Angi rating for Generator Install companies in Hillside, NJ 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 Hillside, NJ 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 September 30, 2026

Top-Rated Generator install pros in Hillside - Updated Nov 2026

Avatar for Green Sun Energy Services, LLC
Green Sun Energy Services, LLC
5.0(
73
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+2 more

Serving Hillside, NJ and surrounding areas

Approved

In business since 2010

Free estimates

Warranties offered

"A wonderful experience for a complicated project! I would use Green Sun Energy again for any service they provide. They made the generator install as easy and painless as possible. The crew was kind and efficient. Lots to do for an install such as this but they did it quickly, efficiently and were extremely organized. Just how I like it! Thank you so much!! We feel protected for whatever comes our way."
Ruisi
Oceanport
Additional Photos
Additional Photos
Additional Photos

+55

Response time5 days
Response rate100%
9 neighbors recently requested a quote
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Avatar for Endrite Electrical LLC
Endrite Electrical LLC
5.0(
8
)
Fixed Generator - InstallGenerator - Install - For BusinessGenerator - Repair - For Business

Serving Hillside, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Offers commercial services

"I cannot stress enough how impressed I am with their commitment to customers. After the installation of an outlet for an EV charger and an upgrade to my panel, I had a minor issue. Within an hour of me reaching out to inform them of the issue, I received a call with an offer from Endrite to come by later in the day to take a look. The repair was done at my convenience with no additional charge. They were thorough and went beyond what was probably needed to ensure the problem did not re occur."
Response time2 hrs
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Avatar for Cardinal LLC
Cardinal LLC
5.0(
5
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving Hillside, NJ and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

Cardinal Electric is a full-service electrical contractor based in Sayreville, NJ, serving homeowners across Middlesex, Monmouth, and surrounding counties. We specialize in the projects that protect your home and raise its value: electrical panel replacements, 200A+ service upgrades, whole-home standby generator installations, Level 2 EV chargers, and electrical for kitchen, bath, basement, and addition renovations.\nOur licensed electricians handle everything from permits and utility coordination to inspection and cleanup, so you get a code-compliant installation and a single point of contact from estimate to final sign-off. We give clear, written pricing up front, show up when we say we will, and leave your home cleaner than we found it.\nWith commercial and industrial divisions behind us, we bring that same engineering discipline and safety standard to residential work. If you want it done right the first time by a team that stands behind its work, request a quote today.

24 neighbors recently requested a quote
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Avatar for Current Electric Contracting, LLC
Current Electric Contracting, LLC
4.1(
44
)
Generator - Install - For Business

Serving Hillside, NJ and surrounding areas

Approved

In business since 2002

Free estimates

Emergency services offered

"These folks were great. They came on time, removed and installed new lights,and clean up! I would definately call them again! They charged a fair price as well."
Arisol Job
Pack and Rent
Hillsborough Medical Offices
Starray Facility
Response time1 day
Recommended by73%of homeowners
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Avatar for Gold Medal Service, LLC (South)
Gold Medal Service, LLC (South)
3.7(
421
)
Fixed Generator - InstallFixed Generator - Repair

Serving Hillside, NJ and surrounding areas

Approved

In business since 1978

Free estimates

Emergency services offered

"Everything went well with my outlet install. The gentleman was nice and did exactly what I needed him to do."
Before - Exterior Electric Box
After - Exterior Electric Box
7 neighbors recently requested a quote
Recommended by85%of homeowners
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Generator Install FAQs, answered by experts

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.

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

Yes, in some locations, it is required by the National Electric Code (NEC) to have a transfer switch installed for electrical emergencies. In addition to following electrical code, generator transfer switches ensure your home is fully protected during a power outage. By switching the power from the main breaker to the generator breaker, you can seamlessly operate your HVAC, lights, appliances, devices, and more during an emergency. 

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.

While diesel is relatively stable, it won’t last nearly as long as propane and you may have to replace it if it sits unused for too long. Diesel can sometimes struggle to work efficiently or start engines during especially cold weather, so it’s not the best choice for every climate. Compared to fuels like propane and natural gas, diesel generators tend to be noisier and create more exhaust, which isn’t always ideal for home use.

The Hillside, 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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