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

Avatar for RAP Electric Co., Inc.
RAP Electric Co., Inc.
4.6(
137
)
Portable Generator - Install

Serving Belleville, NJ and surrounding areas

Approved

In business since 1984

Free estimates

Emergency services offered

"Roy is really a prof. He installed two overhead fans and a hanging lamp. The fans had a complicated control system but he was able to get them to work flawlessly. Bonus: he is really a nice person and he cleaned up too! I would recommend his work to anyone."
Response time2 hrs
Response rate93%
Recommended by90%of homeowners
Gold Medal Service, LLC (NY)
3.7(
419
)
Fixed Generator - InstallFixed Generator - Repair

Serving Belleville, NJ and surrounding areas

Approved

In business since 1978

Free estimates

Emergency services offered

Plumbing, HVAC, and electrical systems make your house livable. One minor issue with any of these systems can put your home at a standstill. In case you find yourself in this unfortunate situation, know that you can count on Gold Medal Service. For over 24 years, our company has been based out of East Brunswick and taking care of the homes of New Jersey residents through our top-quality plumbing, HVAC, and electrical services. We are available 24 hours a day, 7 days a week to address even the most mind-boggling issues of your in-home equipment. From repairs, installations, and upgrades, our technicians are known for getting the job done right every time. We also provide upfront pricing with a full description of the service before commencing work to avoid any surprises down the line. \n

1 neighbors recently requested a quote
Recommended by85%of homeowners
Avatar for Service Professionals
Service Professionals
4.5(
12
)
Fixed Generator - Install

Serving Belleville, NJ and surrounding areas

Approved (Corporate)

In business since 1980

Emergency services offered

Warranties offered

Service Professionals was built on a simple idea: homeowners deserve dependable, professional service they can trust.\n\n\nOur founder learned the trade hands-on, working alongside his father and later becoming a licensed plumber. That experience shaped how we operate today—show up prepared, communicate clearly, and do the job right the first time.\n\nProfessionalism is non-negotiable. Our technicians arrive in uniform, drive clean and fully stocked trucks, and treat every home with care and respect. If something isn’t right, we fix it. No shortcuts. No runaround.\n\n\nWith over 30 years of experience, Service Professionals provides Plumbing, Heating & Cooling, and Electrical services across New Jersey. Our thumbs-up logo stands for honest work, clear expectations, and solutions that last.\n\nFrom urgent repairs to long-term system care, homeowners choose us because we show up, follow through, and stand behind our work—every visit, every time.

Team Meeting
Evin in Warehouse
Department Meeting
HVAC Talk
Group Project

+10

Response time2 days
Response rate100%
18 neighbors recently requested a quote
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Generator Install FAQs, answered by experts

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.

You can determine what size generator you need for a transfer switch by matching the switch to the largest outlet on your generator. Larger generators can power up to 10 circuits, while most 5,000-watt generators can provide power to six circuits. So, if your generator’s largest outlet is 30 amps, you’ll need a 30-amp transfer switch.

Natural gas and electricity rates vary significantly based on location, and pricing can change over time, too. It’s possible that in locations where natural gas is particularly inexpensive, it will cost less than grid-based electricity will. However, you should also factor in the generator’s initial costs and maintenance needs, as well as its noise level and if it can comfortably power all your home appliances.

These advanced generators use a key fob or a smartphone app to remotely start, which is ideal for getting power back on immediately without venturing outside. This feature is more common on whole home generators, but you may be able to find it on large portable generators, too.

A portable generator can supply power to selected appliances and circuits in a home, but it's generally not designed to handle the entire household's electrical needs simultaneously. Portable generators have limited wattage capacity, so they are only designed to power essential devices and electronics temporarily until local power is restored. If your power needs outweigh the capabilities of a portable generator, consider installing a whole-home generator instead.

The Belleville, NJ homeowners’ guide to generator installs

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