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Find Generator install pros in Caldwell

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

Serving Caldwell, NJ and surrounding areas

Approved

In business since 1984

Free estimates

Emergency services offered

"Outstanding. Prompt, courteous, knowledgeable, reliable, informative and neat. Concerned about functionality and aesthetics of all items installed. Aware of the newest products - in my instance a beautiful Decora type timer and unobtrusive vent cover for a bathroom exhaust. All at a price that is very reasonable."
Response time2 hrs
Response rate93%
Recommended by90%of homeowners
Schweiger Electrical Contracting, LLC
4.7(
78
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving Caldwell, NJ and surrounding areas

Approved

In business since 2015

Free estimates

Customers say: Quality work

"Frank and his team did a fantastic job upgrading our electrical panel and wiring for our generator. He even came out to help us during off hours when we needed help with starting the generator! He is quick to get back and does above and beyond. I highly recommend and will use his company again and again!"
Response time5 hrs
Response rate87%
Recommended by94%of homeowners
Avatar for Hank's Electrical Contracting LLC
Hank's Electrical Contracting LLC
5.0(
40
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving Caldwell, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Free estimates

Emergency services offered

"Living in Shongum Lake Area in Randolph, there are a lot of down trees/wiring, I wanted to install a backup mixed fuel generator to use during emergencies, installed a new light in my office and updated the drop ceiling lights to energy efficient lighting. Hank's Electrical Contracting updated our electrical panel installed a switch and connected our generator. Showed me how to make the switched and manage the main panel to go to generator mode. Hank's Electrical Contracting providing me and my family the safety we needed during emergency times. Pricing was fair and the service was professional. I highly recommend them for all electrical services."
Response time4 hrs
Response rate87%
1 neighbors recently requested a quote
Avatar for Anzalone Electric & Lighting, LLC
Anzalone Electric & Lighting, LLC
4.9(
113
)
Portable Generator - Install

Serving Caldwell, NJ and surrounding areas

Approved

In business since 2008

Free estimates

Small jobs welcome

"Scott did a great job in upgrading my service panel (100 to 200 amps) in a day as promised. He does quality work at a reasonable price. Even the town inspector says he does good work which means he does it right the first time."
Finished panel
Electric Tie in
installing breakers
The old mast
Response time8 hrs
Response rate87%
11 neighbors recently requested a quote
Michael Bianchi LLC
4.7(
44
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+3 more

Serving Caldwell, NJ and surrounding areas

Approved

In business since 2011

Free estimates

Emergency services offered

We offer over 15 years of experience in the industry. At M Bianchi LLC, we combine technical expertise with a customer-first approach. Our company provides complete electrical services—from upgrades and rewiring to lighting design, smart-home integrations, and commercial installations. We pride ourselves on honesty, craftsmanship, and fast, reliable service. Whether it's a small repair or a large project, you can count on us for safe, efficient, and high-quality electrical work.

Response time12 hrs
Response rate100%
12 neighbors recently requested a quote
Avatar for Pipe Works Services Inc
Pipe Works Services Inc
4.4(
204
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Caldwell, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 2000

Free estimates

Emergency services offered

"I have used Pipe Works on numerous occasions as of this date and find them to provide excellent service at competitive prices. Their associates are great to work with and their prices are competitive. The work is always completed on time, as promised and the work area is left clean. I appreciate that they point out things that need repair in the not so distant future. It was great to wake up the other day with power coming from my new Kohler Generator"
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+93

16 neighbors recently requested a quote
Recommended by78%of homeowners
Avatar for First Wave Electrical
First Wave Electrical
4.7(
55
)
Portable Generator - Install

Serving Caldwell, NJ and surrounding areas

Approved

In business since 2006

Free estimates

Emergency services offered

"A+ for being prompt, accurate on time and on the scope of work. I did request to install needed equipment to run the generator and my house had some non-standard situations. I love that all challenges were solved in the right way, not the fast way. The electrician was very open-minded for debating on the possible approaches to an unexpected situations, etc. I love the work, very rational pricing and I would hire again."
Response time6 hrs
Recommended by96%of homeowners
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Showing 1-10 of 165
Generator Install questions, answered by experts

Natural gas generators are designed to run for extended periods of time, such as power outages during a natural disaster. Since there’s no limit to the supply of natural gas, they don’t need to stop for refills. However, generators do need maintenance, including pauses to check and add oil. Constantly running them will also cause a lot more wear and tear, leading to a shorter lifespan.

Carbon monoxide emissions aren’t only dangerous to human life, but they also harm our planet. While natural gas generators emit lower levels of CO than other fuel sources, there are still ways to reduce emission levels. For example, shop around for an eco-friendly generator that complies with current emission standards. Also, make sure your generator is serviced regularly to avoid CO buildup. 

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.

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.

If you’re wondering if you can use your electric vehicle as a backup battery, it depends on whether your EV is compatible with bidirectional charging. This technology allows energy to flow both ways, enabling vehicle-to-home (V2H) backup power, vehicle-to-load (V2L) for appliances and camping, and vehicle-to-grid (V2G) to support the power grid. Compatible EVs convert stored DC energy into usable AC power, helping reduce energy costs and enhance grid stability while providing emergency backup power.

The Caldwell, NJ homeowners’ guide to generator installs

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