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Verified Reviews for Generator Install pros in Harrison, NJ

*The Angi rating for Generator Install companies in Harrison, 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 Harrison, 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 December 11, 2025

Find Generator install pros in Harrison

Avatar for Current Electric Contracting, LLC
Current Electric Contracting, LLC
4.1(
44
)

Serving Harrison, NJ and surrounding areas

Approved

In business since 2002

Free estimates

Emergency services offered

"Converted my fluorescent to LED bulbs in all my light fixtures. They handled the job very quickly and did a great job. I have 4 shops. I will use them again."
Arisol Job
Pack and Rent
Hillsborough Medical Offices
Starray Facility
Response time1 day
Recommended by73%of homeowners
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Avatar for Triton Electrical Inc.
Triton Electrical Inc.
5.0(
9
)

Serving Harrison, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 2017

Free estimates

Emergency services offered

"I had an excellent experience with Triton Electrical! From start to finish, their staff was professional, knowledgeable, and incredibly friendly. The team handled the wiring work with great attention to detail and made sure everything was done safely and efficiently. They took the time to explain the process, answer all my questions, and left the space spotless when the job was done. I highly recommend Triton Electrical to anyone looking for reliable electrical work and a team that goes above and beyond."
KFC NANUET, NY
KFC NANUET, NY
POPEYE'S HAVERSTRAW, NY
POPEYE'S HAVERSTRAW, NY
SADDLE HILL WINERY

+7

Response time2 days
Response rate86%
1 neighbors recently requested a quote
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Gabriel's Electric
New to Angi

Serving Harrison, NJ and surrounding areas

Approved

In business since 2020

Free estimates

Credit card accepted

We are owner operated, and believe in building long-term relationships with our clients by delivering exceptional work through close attention to detail. We pride our company on reliability, great communication, integrity, and customer service. We are experts in our trade and will do our best to keep you as educated as we can on your particular project. We work for our customers on their schedule, as to make it as convenient as possible for you! We look forward to working with you!

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Generator Install questions, 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.

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.

You may need a permit for a portable generator if you’ll be installing a transfer switch for your primary residence or similar work. Otherwise, a permit for other uses may not be necessary. Check your local building codes or ask a local generator installer for more information about your local regulations.

You can expect a diesel generator to last for up to 30,000 hours of use, which works out to 20 to 25 years with the proper maintenance, of course. That depends on how much you use it, so a diesel generator used for emergencies a couple of times a year will last a lot longer than a generator that takes over for a faulty electrical grid every month for a day or two. 

An undersized whole-house generator has the potential to overheat and shut down when you try to run a central AC system. This scenario can not only damage the whole-house generator, but can also trip your home’s breakers or cause electrical damage. To avoid this situation, hire a local generator installer to correctly size your whole-house generator.

The Harrison, 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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