The Hunterdon Scoop / Hire

Generator installers in Hunterdon County

Rural roads, big trees, and a grid that gives up in every ice storm: this is a generator county. The electrical permit and the factory dealer claim are the two things that get exaggerated in this trade, and the two things worth checking yourself before hiring.

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What it costs

A Generac whole-home standby generator installed in New Jersey runs $8,500 to $18,000 all-in in 2026. By size: a 10kW unit for essential circuits runs about $8,500 to $11,000 installed; 14 to 18kW runs $11,000 to $14,500; and a 24 to 26kW unit for full whole-home coverage runs $14,000 to $18,000 (grounded-electric.com NJ pricing guide, 2026). Add $2,800 to $4,500 if your electrical panel needs an upgrade first, and $350 to $650 for the electrical and gas permits together. A complete installation includes the generator, a concrete or composite pad, an automatic transfer switch, and the fuel connection, either a natural gas tap or a new propane tank and line.

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Before you sign anything

  1. Ask for the 34EB electrical business permit number and check it at newjersey.mylicense.com (Business Search). Generator installation is electrical work in New Jersey; it requires a licensed electrical contractor, not a general handyman.
  2. Verify the 'factory dealer' claim on the manufacturer's own locator (Generac and Kohler both run one). Factory-trained dealer and 'we install those' are different things, and the difference matters for warranty support later.
  3. A real installation needs an electrical permit and almost always a gas or propane permit too. New Jersey allows a licensed electrical contractor with the right continuing education to run the gas piping for the generator itself, without a separate plumbing license, so ask who's doing that piece and whether they're certified for it.
  4. Get the transfer switch type in writing: full whole-house coverage versus a subset of circuits. That decision drives both the generator size and the price by thousands of dollars.
  5. Never pay in full before the inspection passes. The permit sign-off, electrical and gas both, is your leverage on a five-figure job.

Standby generator installation is electrical work, so it requires a licensed electrical contracting business (34EB permit) and a licensed electrician (34EI), from the same board that licenses electricians. A gas or propane permit is usually required too.

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The local picture

Most companies working this category are electrical contractors who added generators as a specialty, not standalone generator companies. That's normal for this trade; the factory-dealer status and the permit are what actually separate a real install shop from a reseller.

Questions neighbors actually ask

Does installing a generator require a licensed electrician in New Jersey?

Yes. Generator installation is electrical work: it ties into your panel and requires an automatic transfer switch, and New Jersey requires a licensed electrical contracting business (34EB) and licensed electrician (34EI) to do it. It's checkable at newjersey.mylicense.com, use the Business Search for the 34EB permit.

Do I need a permit for a whole-house generator?

Yes, an electrical permit at minimum, and a gas or propane permit if the unit runs on gas, which most do. Every town in New Jersey handles the paperwork a little differently, but skipping permits on a project this size, one that involves a fuel line and a transfer switch tied to your main panel, is not a corner worth cutting.

Who can run the gas line to my generator?

New Jersey allows a licensed electrical contractor who has completed the required continuing education in gas piping for generators to install that piping themselves, without a separate plumbing license. Ask the company directly whether they hold that certification or subcontract the gas work, either is fine, but you want a straight answer.

How big a generator do I actually need?

It depends on whether you want to run the whole house (roughly 20kW-plus for a typical home, more for larger homes with well pumps and central air) or just the essentials (10 to 14kW covers a fridge, some lights, a well pump, and maybe one zone of heat or AC). A contractor should size it off your actual electrical panel and circuit list, not a generic recommendation, before you commit to a number.

16 businesses filed under Electrical in the county directory, A–Z

Everything filed under Electrical in the county directory, alphabetically. It is a broad category, so it takes in neighboring lines of work as well as generator installers. No ordering, no ranking, no picks.

Names, towns and numbers come from The Hunterdon Scoop business directory, pulled July 28, 2026. Want this list narrowed to your town? Browse Electrical by town. A business appearing here is not a recommendation, and no business pays to be on it.

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