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    Average homeowner rating
  • Verified reviews icon10
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Verified Reviews for Generator Install pros in Belleville, NJ

*The Angi rating for Generator Install companies in Belleville, 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 Belleville, 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 May 23, 2025

Find Generator install pros in Belleville

Avatar for A Team Electrical Contractors Corp.
A Team Electrical Contractors Corp.
4.6(
65
)
Fixed Generator - InstallFixed Generator - Repair

Serving Belleville, NJ and surrounding areas

Approved

In business since 2010

Free estimates

Emergency services offered

"It was an excellent experience and has now become my generator guy."
Service Upgrade
Generator
Service Upgrade
Generator
Service Upgrade

+141

Response time1 day
6 neighbors recently requested a quote
Recommended by100%of homeowners
Request Quote
Avatar for Current Electric Contracting, LLC
Current Electric Contracting, LLC
4.1(
44
)
Generator - Install - For Business

Serving Belleville, NJ and surrounding areas

Approved

In business since 2002

Free estimates

Emergency services offered

"awesome! respectful, and knowledgeable. looking forward to seeing them again."
Arisol Job
Pack and Rent
Hillsborough Medical Offices
Starray Facility
Response time1 day
Recommended by73%of homeowners
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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
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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

"Over the phone I scheduled an afternoon slot, but the technician showed up at 9 am. It wasn’t his fault, it seems there was an error on the administrative side. Despite this, the work was done well and he was very friendly."
Team Meeting
Evin in Warehouse
Department Meeting
HVAC Talk
Group Project

+10

Response time2 days
Response rate100%
26 neighbors recently requested a quote
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Paul Dischler Electrical Contractor
New to Angi
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+1 more

Serving Belleville, NJ and surrounding areas

Approved

In business since 1992

Free estimates

Paul is an electrical contractor with over 40 years of experience installing and repairing everything electrical. Paul will do anything for your home or business electrical needs working out of Lyndhurst, New Jersey. Paul can also take on jobs in New York as he is very close to the border. Call Paul today, he does it all!

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Generator Install questions, answered by experts

To determine the right size generator for your house, you should calculate the total wattage of the appliances and devices you want to power during an outage. List all essential items, note their start-up wattages, and add them together.

Here are some typical wattage requirements for common appliances:

  • Refrigerator: 600 watts

  • Large dehumidifier: 700 watts

  • Large window air conditioner: 1,400 watts

  • Water heater: 3,000 to 4,500 watts

  • Electric furnace: 5,000 to 25,000 watts

A 7,500-watt generator might be sufficient for essentials like a refrigerator, freezer, well pump, and lighting circuits. However, for high-demand items like a water heater or furnace, a whole-home generator is a better choice. A portable generator may be enough if you only need to power a few critical items.

While home square footage can offer a rough estimate, it is not always a reliable indicator. For reference, here are some typical generator sizes based on square footage:

  • 1,000 sq ft: 6–9 kW

  • 1,500 sq ft: 7–10 kW

  • 2,000 sq ft: 10–14 kW

  • 2,500 sq ft: 12–16 kW

  • 3,000 sq ft: 16–20 kW+

For the most accurate sizing, consult a professional who can calculate your home's peak and average power consumption and recommend the optimal generator.

Generally, you’ll want to keep between 60 and 70 feet between the generator and the transfer switch. There are a few reasons for this, including:

  • The distance reduces the noise coming from the generator into your home.

  • It increases efficiency because you won’t have a voltage drop from this short of a distance.

  • Prevents carbon monoxide poisoning: keep at least 15 feet between your generator and an open window. 

It’s usually better to repair your generator if it isn’t working properly, as it will typically be much more affordable and should yield similar results. Generator repairs cost around $300 on average, while installing a new whole-house generator costs around $5,000 on average. The only exception is if you know your generator is reaching the end of its useful life, usually between 30 and 40 years. If you have an older generator, you could face multiple repairs in the coming years, which might mean that a full replacement will be more cost-effective over time.

Sizing a generator is a careful process that requires calculating the electrical load of your entire house. You have to take into account every device you want to use and their wattage requirements, plus the wattage needed to start them, and look for a generator that can safely run all that at around 80% capacity.

In more practical terms, a small home can run on a 10,000-watt generator (and if you only want to power a few key appliances, much less than that). A mid-sized home may need something between 15,000 and 22,000 watts. Larger homes require 25,000 watts or more. 

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.

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.

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