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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

"Roy is really a prof. He installed two overhead fans and a hanging lamp. The fans had a complicated control system but he was able to get them to work flawlessly. Bonus: he is really a nice person and he cleaned up too! I would recommend his work to anyone."
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 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
Avatar for B-TEC Electric Company, LLC
B-TEC Electric Company, LLC
4.9(
85
)
Portable Generator - Install

Serving Washington, NJ and surrounding areas

In business since 1993

Free estimates

Emergency services offered

"Very fast response time. The guys that came out were efficient and answered all questions. They adjusted one of our attic fans and replaced the other all in less than 3 hours! We will be hiring them for additional work installing fans!"
mast service
neatness counts
recessed lighting
swimming pools
hot tubs

+112

Response time8 hrs
Recommended by98%of homeowners
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Generator Install FAQs, answered by experts

You can determine what size generator you need for a transfer switch by matching the switch to the largest outlet on your generator. Larger generators can power up to 10 circuits, while most 5,000-watt generators can provide power to six circuits. So, if your generator’s largest outlet is 30 amps, you’ll need a 30-amp transfer switch.

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.

Whole-house generators can run continuously for extended periods, even for weeks at a time (around 400 to 500 hours), as long as they have a sufficient fuel supply. However, this type of extensive use will increase wear and tear and can shorten the generator's overall lifespan. During long periods of operation, it's important to check and refill the engine oil as needed, potentially as frequently as daily depending on the model. If your generator uses a fuel tank, ensure it is kept full to prevent unexpected shutdowns.

The cost to install a whole-house generator averages $5,200, with a typical price range of $1,500 to $8,900. However, total costs can vary from $400 for a small portable unit to over $18,000 for a large-capacity system. The most significant cost factor is the generator's size and capacity, but other variables include the brand, fuel type, and labor for assembly and installation.

Generator costs can be broken down by type:

  • Portable or Emergency Backup Generators (1kW–7.5kW): $500 to $2,000

  • Partial-Home Generators (9kW–20kW): $2,000 to $6,500

  • Whole-House Generators (22kW–48kW): $5,000 to $18,000

To avoid paying for more power than you need, consider hiring an electrician to calculate the electrical load for your essential appliances. It is also recommended to get at least three quotes to find the best deal for your specific needs and budget.

A home that is 2,500 square feet will likely need a 20kW to 25kW generator. Consult your local generator installer to confirm the generator size needed to power your home before purchasing a new one. Be sure to consider how much power your necessary devices need to run.

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.