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Verified Reviews for Generator Install pros in Sewaren, NJ

*The Angi rating for Generator Install companies in Sewaren, 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 Sewaren, 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 November 30, 2025

Find Generator install pros in Sewaren

Avatar for Green Sun Energy Services, LLC
Green Sun Energy Services, LLC
5.0(
73
)

Serving Sewaren, 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 time4 days
6 neighbors recently requested a quote
Recommended by95%of homeowners
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Avatar for Spotlight Solar, LLC
Spotlight Solar, LLC
4.7(
150
)

Serving Sewaren, NJ and surrounding areas

Approved

In business since 1987

Free estimates

Emergency services offered

"Installed one light fixture and three pendant lights. Prompt, efficient, courteous and professional."
Response time1 day
428 neighbors recently requested a quote
Recommended by97%of homeowners
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Avatar for A Shore Thing Electric, LLC
A Shore Thing Electric, LLC
4.7(
51
)

Serving Sewaren, NJ and surrounding areas

Approved

In business since 2016

Free estimates

Small jobs welcome

"Michael was diligent, reliable and knowledgable. I hired him to install a charging station for my electric car. He did a great job running a line from the basement to the outside of the house. and installing the charging station. He was neat and clean. His pricing was reasonable. YOu should not hesitate to hire him. He knows his stuff."
Pharmecutical Cage Panel
Panel Change
125 Amp Panel
Tesla S/X/3 Car Charger
Remote Controlled Ceiling Fan

+22

Response time1 day
4 neighbors recently requested a quote
Recommended by93%of homeowners
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Avatar for Current Electric Contracting, LLC
Current Electric Contracting, LLC
4.1(
44
)

Serving Sewaren, NJ and surrounding areas

Approved

In business since 2002

Free estimates

Emergency services offered

"We had outlets installed. They wasted no time in getting the job done. They were Very Courteous, they new what they were doing and they were very clean! They put plastic around where ever they were drilling. Great Job!"
Arisol Job
Pack and Rent
Hillsborough Medical Offices
Starray Facility
Response time1 day
Recommended by73%of homeowners
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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.

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.

Yes. You can connect your home back-up battery to a generator with its designated charger. Be sure that the output of the generator matches the input requirements for the battery for best results.

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.

Portable generators provide backup power for essential appliances during outages and are easy to relocate.

The Sewaren, 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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