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    Verified generator installs reviews

Top-Rated Generator install pros in Princeton Junction - Updated Nov 2026

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

Serving Princeton Junction, 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%
9 neighbors recently requested a quote
Avatar for Raynor Services - Electrical/Generators
Raynor Services - Electrical/Generators
4.5(
163
)
Fixed Generator - InstallFixed Generator - RepairPortable Generator - Install+1 more

Serving Princeton Junction, NJ and surrounding areas

Approved

In business since 1993

Free estimates

Credit card accepted

In 1993, Tom Raynor began taking on electrical construction and service jobs across southern New Jersey. With just one assistant and one beat-up truck, Tom crisscrossed the state, building a reputation for his small outfit as one that offered professional, hands-on service and reliable, high-quality results. By 1994, it was official—Raynor Services was born! \n \nSince then, that red pick-up has been upgraded to a fleet of ten fully stocked trucks. We are now a “one-stop shop” service company, specializing in electric, heating, cooling, and generator services. Raynor Services has never lost the spirit of professional, hands-on service that it was founded on. Family-owned and operated, we combine small-business service with big-business expertise. \n \nRaynor technicians are among the best in the industry. Each must complete a rigorous hiring process – including a background check, a drug test, and an HVAC or electrical proficiency examination.

Raynor Services
Raynor Services
Raynor Services
Raynor Services
Raynor Services

+15

4 neighbors recently requested a quote
Recommended by86%of homeowners
Avatar for Spotlight Solar, LLC
Spotlight Solar, LLC
4.7(
150
)
Portable Generator - Install

Serving Princeton Junction, NJ and surrounding areas

Approved

In business since 1987

Free estimates

Emergency services offered

"the job was complicated because another installer had left connections from heated floor tiles in the wrong place Chris and Joe and Anthony had to do a lot of adapting to get connections made I felt that they did an excellent,difficult job."
Response time1 day
535 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for Star Bright Electric
Star Bright Electric
5.0(
39
)
Portable Generator - Install

Serving Princeton Junction, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 2015

Free estimates

Emergency services offered

"We had a top experience with Star Bright Electric and would highly recommend them. From start to finish, they were professional, polite, and easy to work with. They communicated clearly, showed up prepared, and took the time to clarify any questions before moving forward with the work. The job was completed efficiently and everything was done well. We appreciated that they were respectful of the home, careful with the details, and made sure the work was completed properly. It can be hard to find contractors who are both skilled and pleasant to work with, but Star Bright Electric checked all the boxes. Overall, we were very happy with the experience and plan to use them again for any future electrical work."
Our Trucks
Response time11 hrs
Response rate99%
1 neighbors recently requested a quote
Avatar for A Shore Thing Electric, LLC
A Shore Thing Electric, LLC
4.7(
51
)
Portable Generator - Install

Serving Princeton Junction, 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
1 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Cardinal LLC
Cardinal LLC
5.0(
5
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving Princeton Junction, NJ and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

Cardinal Electric is a full-service electrical contractor based in Sayreville, NJ, serving homeowners across Middlesex, Monmouth, and surrounding counties. We specialize in the projects that protect your home and raise its value: electrical panel replacements, 200A+ service upgrades, whole-home standby generator installations, Level 2 EV chargers, and electrical for kitchen, bath, basement, and addition renovations.\nOur licensed electricians handle everything from permits and utility coordination to inspection and cleanup, so you get a code-compliant installation and a single point of contact from estimate to final sign-off. We give clear, written pricing up front, show up when we say we will, and leave your home cleaner than we found it.\nWith commercial and industrial divisions behind us, we bring that same engineering discipline and safety standard to residential work. If you want it done right the first time by a team that stands behind its work, request a quote today.

24 neighbors recently requested a quote
Avatar for Current Electric Contracting, LLC
Current Electric Contracting, LLC
4.1(
44
)
Generator - Install - For Business

Serving Princeton Junction, 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 FAQs, answered by experts

While the rating will tell you how many watts the refrigerator needs at the peak of its cycle, it requires additional wattage to start. At the bare minimum, you’ll need a 1,500-watt generator to get the fridge up and running after a blackout. A 2,000-watt generator should be sufficient for most home refrigerators.

Here’s what you can run with different wattages and types of generators:

Portable generator:

  • 2,000 watts can handle a large appliance like a freezer or refrigerator, plus a few smaller items like phones or computer chargers. 

  • 4,000 watts will keep two large appliances operating and a few smaller devices.

  • 8,000 watts should power most essential appliances and other devices, including a sump pump, well pump, or your dishwasher.

Partial to whole-house generator:

  • 20,000 watts and above will make it seem like your home’s power is still on.

To reduce AC startup power for a whole-house generator, install a soft start kit or hard start capacitor, which lowers the initial surge by gradually ramping up the compressor. Using a smart load manager can also help by staggering startup loads, preventing a system overload and future costly repairs.

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. 

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. 

The Princeton Junction, NJ homeowners’ guide to generator installs

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