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Best generator install pros near Washington, NJ

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Top-Rated Generator install pros in Washington - Updated Nov 2026

Avatar for RAP Electric Co., Inc.
RAP Electric Co., Inc.
4.6(
137
)
Portable Generator - Install

Serving Washington, NJ and surrounding areas

Approved

In business since 1984

Free estimates

Emergency services offered

"Did all we needed quickly and in one day. Friendly, enjoyed having him in my house. Very reasonable price, really thought it would be much more. I had others working in my house while he was here and he worked very well around and with them. Great overall electrician."
Response time2 hrs
Response rate93%
Recommended by90%of homeowners
Avatar for Current Electric Contracting, LLC
Current Electric Contracting, LLC
4.1(
44
)
Generator - Install - For Business

Serving Washington, NJ and surrounding areas

Approved

In business since 2002

Free estimates

Emergency services offered

"We had outlets installed. They wasted no time in getting the job done. They were Very Courteous, they new what they were doing and they were very clean! They put plastic around where ever they were drilling. Great Job!"
Arisol Job
Pack and Rent
Hillsborough Medical Offices
Starray Facility
Response time1 day
Recommended by73%of homeowners
Avatar for Mr. Electric of Hunterdon
Mr. Electric of Hunterdon
4.8(
16
)
Portable Generator - InstallPortable Generator - Repair

Serving Washington, NJ and surrounding areas

Approved

In business since 2024

Free estimates

Emergency services offered

"I have no complaints about Mr. Electric. In fact, the technician went above and beyond and was excellent. He couldn't make it on the day of installation, which was unexpected, but his stand in honored his commitments. The only reason to not give 5 stars was that it seemed excessively expensive. I wouldn't pay that again for what it was. I'd do it myself. Even Angi gave me a reasonable quote. They charge six times that reasonable quote for a simple outlet transfer... 10/10 for customer service. I guess you'd have to be though, for all that money."
New ceiling fan
Tesla
Light fixture before
Charge Point
Light fixture before

+60

Response time3 hrs
Response rate98%
1 neighbors recently requested a quote
Avatar for Simmz Electrical
Simmz Electrical
5.0(
1
)
Portable Generator - Repair

Serving Washington, NJ and surrounding areas

Approved

Emergency services offered

Small jobs welcome

"Joe from Simmz Electrical was very skilled, charged a fair price and was great to work with. He did a wonderful job, worked very carefully and was very neat. He communicated with us quickly; is very reliable and prompt. We felt comfortable with him in our home; he is now our go to guy for anything electrical. Lucky find"
Lombardo Electrical Contracting LLC
New to Angi
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving Washington, NJ and surrounding areas

Approved

In business since 2024

Free estimates

Credit card accepted

We have a single mission: Complete Customer Satisfaction! We have consistently focused on the needs of our customers, providing personalized attention and a stress-free experience. \nYou will find us to be competitively priced with close attention to the details. \nOur reputation is based on service, safety, and quality, regardless of how large or small the job.

Response time20 mins
Response rate100%
4 neighbors recently requested a quote
Schultz Bros Electric
4.7(
96
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Washington, NJ and surrounding areas

In business since 1989

Free estimates

"The estimate for the new circuit installation was done promptly and on-time. The work was performed on the date scheduled. John Schultz was professional, courteous and thorough.
Getting anything scheduled and completed the week of the Christmas holiday can be challenging if not impossible no matter what the task may be, but the work was completed without delay or complication at a very fair price. Not only would I not hesitate to hire Schultz Bros Electric for future electrical work, but my wife and I already plan on just that for other projects this Spring.

Our thanks to John for the prompt and thorough work performed!
"
Recommended by98%of homeowners
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Generator Install FAQs, answered by experts

If you’re wondering whether gas generators produce carbon monoxide, know that natural gas generators do not produce carbon monoxide if they are functioning properly, as natural gas burns cleanly. However, if the generator malfunctions and the gas does not burn completely, there is potential for carbon dioxide to be produced. To prevent malfunctions, it's crucial to perform regular maintenance, including running the generator weekly and scheduling professional inspections every 6 to 12 months. Also, be sure to test your carbon monoxide detectors regularly to ensure they function in the rare case of the generator producing carbon monoxide.

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.

Yes. You can connect your home back-up battery to a generator with its designated charger. Be sure that the output of the generator matches the input requirements for the battery for best results.

As a safety measure, you should always turn off the main breaker while operating your generator’s backup breaker. In addition, you should also switch off all appliance breakers so you don't have a power surge when the main breaker turns back on. And finally, turning off the main breaker prevents back-feeding, which endangers utility workers with the risk of electrocution. Back-feeding could also destroy the electrical circuits of your neighbors if they use the same power network.

To determine the right size generator for your house, you should calculate the total wattage of the appliances and devices you want to power during an outage. List all essential items, note their start-up wattages, and add them together.

Here are some typical wattage requirements for common appliances:

  • Refrigerator: 600 watts

  • Large dehumidifier: 700 watts

  • Large window air conditioner: 1,400 watts

  • Water heater: 3,000 to 4,500 watts

  • Electric furnace: 5,000 to 25,000 watts

A 7,500-watt generator might be sufficient for essentials like a refrigerator, freezer, well pump, and lighting circuits. However, for high-demand items like a water heater or furnace, a whole-home generator is a better choice. A portable generator may be enough if you only need to power a few critical items.

While home square footage can offer a rough estimate, it is not always a reliable indicator. For reference, here are some typical generator sizes based on square footage:

  • 1,000 sq ft: 6–9 kW

  • 1,500 sq ft: 7–10 kW

  • 2,000 sq ft: 10–14 kW

  • 2,500 sq ft: 12–16 kW

  • 3,000 sq ft: 16–20 kW+

For the most accurate sizing, consult a professional who can calculate your home's peak and average power consumption and recommend the optimal generator.

The Washington, NJ homeowners’ guide to generator installs

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