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  • Average homeowner rating star icon4.8
    Average homeowner rating
  • Verified reviews icon27
    Verified generator installs reviews

Top-Rated Generator install pros in Princeton - 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, NJ and surrounding areas

Approved

In business since 2010

Free estimates

Warranties offered

"Since I am working at home it was needed. Glen and Chris were awesome to deal with as they walked us through the process step by step and every time they said someone would be here that person was. It was seamless and very easy to work with them and I would Highly recommend them if you are looking for a generator install."
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, 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

5 neighbors recently requested a quote
Recommended by86%of homeowners
Avatar for Plesh Electric, LLC
Plesh Electric, LLC
4.4(
111
)
Fixed Generator - Install

Serving Princeton, 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
17 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for A Shore Thing Electric, LLC
A Shore Thing Electric, LLC
4.7(
51
)
Portable Generator - Install

Serving Princeton, 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
Recommended by93%of homeowners
Avatar for Mr. Electric of Monroe
Mr. Electric of Monroe
5.0(
14
)
Portable Generator - Install

Serving Princeton, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 1994

Free estimates

Emergency services offered

Welcome to Mr. Electric of Monroe Township, a Veteran-owned Small Business, focused on providing safe, efficient, and premium electrical solutions while prioritizing customer service! We currently service many of the surrounding towns in Middlesex, Mercer, Monmouth and Ocean Counties. Trey, the owner/operator, is a retired Veteran and Commanding Officer, who served over 21 years in the U.S. Navy as a Special Operator, now brings his dedication to service, quality, and integrity to the electrical trade.

Foyer Chandelier
Living Room - vaulted ceiling
Response time6 hrs
Response rate100%
Recommended by35%of homeowners
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Generator Install FAQs, answered by experts

Potential benefits of using a natural gas generator include reducing your carbon footprint, lower likelihood of carbon monoxide exposure, budget-friendly operating costs, and low-maintenance, continuous fuel supply. Some possible drawbacks, though, include higher initial installation costs, dependency on a natural gas supply, and installation complexity. Keep in mind that pros and cons will vary based on the type and brand of natural gas generator. 

To power a central air system during a power outage, the whole-house generator will need to be at least 5,000 watts, and this number will significantly increase for larger units. Check the specific wattage requirements of your AC unit to choose the right generator size. Consider consulting a generator installer to ensure your whole-house generator meets your electrical load needs.

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.

Whole-house generators can run continuously for extended periods, even for weeks at a time (around 400 to 500 hours), as long as they have a sufficient fuel supply. However, this type of extensive use will increase wear and tear and can shorten the generator's overall lifespan. During long periods of operation, it's important to check and refill the engine oil as needed, potentially as frequently as daily depending on the model. If your generator uses a fuel tank, ensure it is kept full to prevent unexpected shutdowns.

Costs range from $500 to $2,500, depending on generator type and installation complexity.

The Princeton, NJ homeowners’ guide to generator installs

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