Standby Generator Installation in New Jersey

Load calculation, transfer switch or interlock, pad, gas coordination and local permits.

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Serving ​Bergen, Ocean, Monmouth & All of New Jersey

Integrated Electrical Solutions installs and services whole-home standby generators across New Jersey. Most 14–24 kW air-cooled installs with a transfer switch and pad cost $7,500–$16,000 and take 1–2 days once permits are issued. Licensed NJ electrical contractor, License #34EB01852700, based in Jackson Township and serving Ocean, Monmouth, Middlesex, Mercer and Bergen Counties.

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Our Generator Services 

We install top brands including Generac, Kohler, Cummins and Briggs & Stratton.

Standby Generator is not a portable with a fancy name

A standby unit sits on a pad, runs on natural gas or propane, and an automatic transfer switch (ATS) moves the house off the utility the moment JCP&L or PSE&G drops. A portable generator plus a panel interlock is legal backup for selected circuits, but you start it, fuel it and keep it outside. 

The Consumer Product Safety Commission warns that portable generator exhaust can kill in minutes, so never run one in a garage, basement or near a window, even with the door open.

Size off the panel, not the brochure

14–22 kW covers most Ocean and Monmouth ranches with 200A service and a wish list of HVAC, well or sump pump, kitchen and a few lights. A 22 kW air-cooled unit on a 100A panel is a waste: the service is the limit. Heat pump plus dryer plus EV plus whole-house AC often means 24 kW+ liquid-cooled or a load-shed module. We run a load calculation. Square footage alone is not a size.

Fuel: who has to approve the gas

Natural gas runs as long as the street has gas, but the meter and pipe have to carry the extra load. A ½-inch branch will starve a 22 kW unit. In most of Monmouth and Ocean, the gas utility is New Jersey Natural Gas, which reviews every standby generator request before the unit can be connected. That review can take up to 15 business days, and NJNG may charge to upgrade the meter or service. In PSE&G gas territory, homeowners must apply to add gas service for a generator too. We file that request early so it doesn't hold up your install.Propane works where there's no gas main. Tank size sets runtime: a 500-gallon tank lasts days, not weeks, if you're also heating with it. We coordinate a licensed gas fitter when new pipe is needed. Our electrical license doesn't cover the gas line, and we won't pretend it does.

Where the generator can go

Placement is set by code and the manufacturer, not by looks. Under NFPA 37, a generator generally needs 5 feet from windows, doors and other openings. Generac's clearance guidance allows 18 inches from the back to a wall only for units marked as tested by SwRI, and 5 feet of open space above. That rules out "tucked behind the AC" and "under the deck" for most homes. We confirm the spot on the site visit, before you buy.

Permits and inspection

Every standby install in New Jersey needs an electrical permit for the transfer switch, feeder and grounding, plus a gas permit when we touch the meter or run new pipe. The forms come from the New Jersey Department of Community Affairs and are filed with your township, which also sets zoning setbacks. Permit wait is the long pole: 1–3 weeks depending on the town. If you have an HOA, get its approval before we file.

Service Day

Pad (concrete or composite), set the unit, ATS at the panel or in its own enclosure, gas tie-in, start-up and exercise timer. Power blinks while the ATS is landed. A clean overhead 200A house takes 1–2 days after permits. Someone needs to be home.

Typical Service Costs (Ocean / Monmouth, 2026)

JobExpected Cost
Panel interlock + customer portable​  $400–$1,200 electrical (unit extra)
14–18 kW air-cooled standby + ATS + pad $7,500–$12,000
20–24 kW whole-home, short gas run $10,000–$16,000
Liquid-cooled, long gas run, tight setbacks or 400A $16,000–$22,000+

A gas line from the street and a new 200A service are not in the generator price. If your panel needs upgrading first, see our panel upgrade page. Annual service is a separate ticket.

Frequently Asked Questions

How much does a whole-home generator cost in New Jersey? 

Most air-cooled installs with a transfer switch and pad cost $7,500–$16,000, depending on size and gas run. Liquid-cooled systems run $16,000–$22,000+. We give free quotes.

Do I need a permit to install a generator in NJ? 

Yes. An electrical permit is always required, plus a gas permit if the meter or piping changes. We file both.

How long does the gas company take?

NJNG reviews generator requests within 15 business days. We submit it early so it runs alongside the permit.

What size generator do I need?

We do a free load calculation. Most NJ homes land between 16 and 22 kW.

Can a generator run my central air?

Yes, when it's sized for it. We design systems that carry AC, well pumps and more.

How often should a generator be serviced?

Once a year. Low oil alone can shut a unit down in an outage, as our Morristown case shows.

Propane or natural gas?

Natural gas if it's at the street: no tank, no refills. Propane if there's no gas main.

Our Professional Generator Installation Process 

 ​Site visit and load calculation: 
We check your panel, your gas or propane, and where the unit can legally sit.

 Written Quote: 
Generator size, fuel, transfer switch type and anything code requires, itemized.

Permits and gas request:
We file with your township and with NJNG or PSE&G.

 Installation: 
Pad, unit, transfer switch and gas tie-in, usually 1–2 days.

Inspection and start-up: 
The town inspects, we run a simulated outage, and we show you how it works.

Your Home or Businesses Safety and Enjoyment Is Our Top Priority.

With ​​​​us, it's easy as 1-2-3!

Step 1

You Call

Describe what your issue or service needed.

Step 2

Schedule Appointment

Book your appointment.

Step 3

We Fix It

Receive scheduled service.

Licensed & Insured.

IES holds New Jersey electrical license #34EB01852700 and is insured. Read our customer reviews to learn about other customers' experiences with our electrical services.

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Generator Cost Guide – New Jersey 2026

Generator Type SizeInstalled Cost RangeIdeal For
Portable (Manual)
7–12 kW
$800 – $2,500 Occasional use
Standby (Automatic)
14–22 kW $6,500 – $12,000 Most homes
Whole-Home Premium
24–48 kW
$12,000 – $22,000+
Large homes

Financing options available — make your generator affordable with low monthly payments.

Ready for Reliable Power During Storm Outages?

Don’t wait until the next outage. Protect your home and family with a professional generator system.

Call (609) 752-6074 today for a free consultation and quote.
Integrated Electrical Solutions
Your Local Generator Experts in New Jersey.