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  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon48
    Verified generator installs reviews

Find Generator install pros in Berkeley Heights

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

Serving Berkeley Heights, 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%
6 neighbors recently requested a quote
Avatar for RAP Electric Co., Inc.
RAP Electric Co., Inc.
4.6(
137
)
Portable Generator - Install

Serving Berkeley Heights, NJ and surrounding areas

Approved

In business since 1984

Free estimates

Emergency services offered

"Did all we needed quickly and in one day. Friendly, enjoyed having him in my house. Very reasonable price, really thought it would be much more. I had others working in my house while he was here and he worked very well around and with them. Great overall electrician."
Response time2 hrs
Response rate93%
Recommended by90%of homeowners
Avatar for Plesh Electric, LLC
Plesh Electric, LLC
4.4(
111
)
Fixed Generator - Install

Serving Berkeley Heights, NJ and surrounding areas

Approved

In business since 1972

Free estimates

Emergency services offered

"Plesh electric did a fantastic job installing our whole house generator. We don’t have natural gas so we had to also had to have a propane tank installed. They did a great job organizing with the propane company and managing the township permits. I highly recommend them."
Outdoor Closed Panel Upgraded
Residential Generator
Outdoor Open Panel Upgraded
Residential Generator
Upgraded Panel Closed

+19

Response time2 days
16 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for North Crest, LLC
North Crest, LLC
5.0(
51
)
Portable Generator - Install

Serving Berkeley Heights, NJ and surrounding areas

Approved

In business since 2020

Free estimates

Warranties offered

"Ken installed recessed lighting in my living room. He provided full explanation of the wiring necessary for the project as well as specific lighting options. Ken was very professional throughout the project - he showed up on time and took extraordinary care during installation and provided this service at a very fair price. I would highly recommend him for all your electrical needs!"
Response time11 hrs
Response rate91%
Recommended by97%of homeowners
Michael Bianchi LLC
4.7(
44
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+3 more

Serving Berkeley Heights, NJ and surrounding areas

Approved

In business since 2011

Free estimates

Emergency services offered

We offer over 15 years of experience in the industry. At M Bianchi LLC, we combine technical expertise with a customer-first approach. Our company provides complete electrical services—from upgrades and rewiring to lighting design, smart-home integrations, and commercial installations. We pride ourselves on honesty, craftsmanship, and fast, reliable service. Whether it's a small repair or a large project, you can count on us for safe, efficient, and high-quality electrical work.

Response time12 hrs
Response rate100%
9 neighbors recently requested a quote
Avatar for Pipe Works Services Inc
Pipe Works Services Inc
4.4(
204
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Berkeley Heights, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 2000

Free estimates

Emergency services offered

"I have used Pipe Works on numerous occasions as of this date and find them to provide excellent service at competitive prices. Their associates are great to work with and their prices are competitive. The work is always completed on time, as promised and the work area is left clean. I appreciate that they point out things that need repair in the not so distant future. It was great to wake up the other day with power coming from my new Kohler Generator"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+93

13 neighbors recently requested a quote
Recommended by78%of homeowners
Avatar for JDP Electric, LLC
JDP Electric, LLC
5.0(
14
)
Portable Generator - Install

Serving Berkeley Heights, NJ and surrounding areas

Approved

In business since 2008

Emergency services offered

Warranties offered

"Jeff came out to to some repairs and install new outlets. While here he also installed a ceiling fan for me. Excellent work, reasonable price, cannot praise him or his work enough. Highly recommend!"
Chandelier
Recessed Lighting
Floor Lighting
Panel Upgrade
EV Car Charger

+11

Response time1 day
1 neighbors recently requested a quote
Recommended by100%of homeowners
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Generator Install questions, answered by experts

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. 

In some situations, yes. Never try to put biofuel into any home generator without checking the specifics first. If a generator has the ability to run on diesel, it can also run pure biofuel (the clear kind made from seed oils, for example). But if you are using biofuel made from animal fats or vegetable oils, the generator will need significant modifications before it can handle a sludgier type of biofuel.

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 average cost to install a home generator is $5,200, but total costs can range from $500 to $18,000 or more. The final price depends on several factors, including the generator's size, type, brand, fuel source, and the cost of labor and assembly. The generator's size is the most significant cost factor, as units that can power larger homes with higher energy demands cost more.

Cost breakdowns by generator type are typically as follows:

  • Portable or Emergency Backup Generators (1kW–7.5kW): $500–$2,000

  • Partial-Home Generators (9kW–20kW): $2,000–$6,500

  • Whole-House Generators (22kW–48kW): $5,000–$18,000

To ensure you get the right size unit for your needs without overpaying, consider hiring an electrician to calculate the electrical load of your essential appliances. It is also recommended to get at least three quotes from qualified installers to find the best fit for your budget.

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 Berkeley Heights, NJ homeowners’ guide to generator installs

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