Top-rated generator install pros.

Best generator install pros near Colonia, NJ

Enter your zip and get matched with up to 5 pros

Need a pro for your generator install project in Colonia, NJ?

Select your specific project to find the pro for you.

TRUSTED BY COLONIA, NJ HOMEOWNERS

  • Average homeowner rating star icon4.8
    Average homeowner rating
  • Verified reviews icon28
    Verified generator installs reviews

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

Approved

In business since 2010

Free estimates

Warranties offered

"Glen and his team were prompt and professional during both installation and annual maintenance. We lost power during the last hurricane and the generator worked perfectly. Pricing was very good and Glen was even able to get me an extended warranty (promo from Generac). I would recommend Green Sun."
Ruisi
Oceanport
Additional Photos
Additional Photos
Additional Photos

+55

Response time5 days
Response rate100%
8 neighbors recently requested a quote
Avatar for Princeton Electrical Makeover LLC
Princeton Electrical Makeover LLC
4.5(
210
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+2 more

Serving Colonia, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 2008

Free estimates

Emergency services offered

"This afternoon Trevor came to my house to repair an outlet. He was knowledgeable, and explained how he would proceed with the repair. He worked quickly and efficiently, and it should be noted he cleaned up upon completion. I would highly recommend Princeton Electrical in the future. Trevor was excellent."
Tesla in charging status
Wiring Tesla Wall Connector
Full installation
Connection in the panel
Additional Photos

+26

Response time2 days
21 neighbors recently requested a quote
Recommended by86%of homeowners
Avatar for Spotlight Solar, LLC
Spotlight Solar, LLC
4.7(
150
)
Portable Generator - Install

Serving Colonia, 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
516 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for Spartan Home Pros
Spartan Home Pros
5.0(
31
)
Portable Generator - InstallGenerator - Install - For BusinessGenerator - Repair - For Business

Serving Colonia, NJ and surrounding areas

Approved

In business since 2023

Emergency services offered

Credit card accepted

"We recently hired Spartan Home Pros for a multi-zone mini split installation, and they did an outstanding job from start to finish. A special shoutout to the lead technician, Charles—he was incredibly diligent, meticulous, and dedicated throughout the entire installation. ​Charles took the time to ensure every line was run cleanly, all wiring and line-hide covers were neat, and all manufacturer clearances and specs were strictly followed. They handled a tight installation spot upstairs with total professionalism and made sure everything was done right the first time. The team left the job site completely spotless, and having the system up and running with both heating and cooling working flawlessly is an amazing upgrade for our home. If you want true craftsmanship and honest, reliable work, I highly recommend Spartan Home Pros!"
Service upgrades
Service upgrades
EV Charger Installation
Landscape lighting
Landscape lighting

+16

10 neighbors recently requested a quote
Recommended by52%of homeowners
Avatar for A Shore Thing Electric, LLC
A Shore Thing Electric, LLC
4.7(
51
)
Portable Generator - Install

Serving Colonia, NJ and surrounding areas

Approved

In business since 2016

Free estimates

Small jobs welcome

"Communicated with Michael through email without any issues. Signed an agreement for work to be done and pricing. Michael scheduled a day and time and arrived exactly at the time he said. He installed two new lights on the front of my house in about an hour. Nice guy! Highly recommend!"
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 Cardinal LLC
Cardinal LLC
5.0(
5
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving Colonia, 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
...
Showing 1-10 of 140
Generator Install FAQs, answered by experts

DIY is possible for basic setups. Professional installation ensures safe and proper electrical connections.

It might seem counterintuitive, but installing a generator transfer switch will save you money in the long run. While you’ll have to pay between $400 and $2,500 to have the transfer switch installed, you’ll recoup that amount later on when you don’t have to pay for expensive repairs to your appliances, devices, and electrical system that may have burned out, overloaded, or stopped working due to a sudden loss of power or an incorrect hook up of a generator to your home. 

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.

The amount of time a standby generator can run continuously is around 3,000 hours on average. However, standby generators can generally run indefinitely as long as they have a continuous fuel supply. Generators hooked up to a home’s natural gas supply are the best option for extended usage, as these won’t rely on a finite fuel supply based on how much you have in storage. Generators running on liquid propane or diesel won’t last as long, as these require fuel storage and regular refueling to stay running.

In most municipalities, you will need a permit to install a permanent home generator, including emergency backup, partial-home, and whole-home generators. A permit for a generator usually costs between $50 and $250, depending on where you live. Your electrician or certified generator installer will usually pull the permit for you—and might be required to do so by your building department—but you’ll be on the hook for the cost of the permit. You should ask your installer before agreeing to any work if they will pull the necessary permits for your project.

The Colonia, NJ homeowners’ guide to generator installs

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