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Best generator install pros near Middletown, NJ

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    Verified generator installs reviews

Top-Rated Generator install pros in Middletown - 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 Middletown, 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%
9 neighbors recently requested a quote
Avatar for Kingdom Electric
Kingdom Electric
4.7(
258
)
Fixed Generator - InstallPortable Generator - InstallFixed Generator - Repair+4 more

Serving Middletown, NJ and surrounding areas

Approved

In business since 2012

Free estimates

Emergency services offered

"The initial estimate was very reasonable. Nick showed up, on time, and got right to work relocating several ceiling fans, installing new light fixtures, rewiring outlets, and adding a new outlet. In the end, we were billed less than the original estimate because Nick determined there was a less expensive way to perform some of these services and did not charge us the extra costs. We will definitely be calling Kingdom Electric for any future services we need."
Additional Photos
Response time11 hrs
11 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for ILL Electrical Services
ILL Electrical Services
5.0(
10
)
Fixed Generator - InstallGenerator - InstallGenerator - Install - For Business+2 more

Serving Middletown, NJ and surrounding areas

Approved

In business since 2024

Free estimates

Emergency services offered

"Renaldo was professional, came on time and did a great job. He installed 2 ceiling fans , installed multiple gfi outlets and upgraded wiring to the panel box. Wonderful service! He thoroughly explained the job and I will definitely call him again."
100 amp meter replacement
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+3

Response time7 hrs
Response rate91%
5 neighbors recently requested a quote
Avatar for A Shore Thing Electric, LLC
A Shore Thing Electric, LLC
4.7(
51
)
Portable Generator - Install

Serving Middletown, 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 Middletown, 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
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Generator Install FAQs, answered by experts

If you have a transfer switch properly installed, the generator and main electrical power cannot feed the system at the same time. However, you should still shut off the power at your main circuit breaker panel before activating the generator. If you do that, you’ll simply need to shut off the generator and reset your circuit breaker once the local power comes back on.

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.

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.

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

Yes, installing a generator usually increases your property value because buyers are getting the added peace of mind knowing they’ll be able to maintain power through blackouts. In most cases, you should see close to a 100% return on investment (ROI). Keep in mind that home generators usually need a permanent foundation, and installing a concrete slab will likely raise your property taxes slightly.

The Middletown, NJ homeowners’ guide to generator installs

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