Top-rated generator install pros.

Get matched with top generator install pros in Madison, NJ

There are 9 highly-rated local generator install pros.

TRUSTED BY MADISON, NJ HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon25
    Verified generator installs reviews

Find Generator install pros in Madison

Avatar for Arctic Air Conditioning

Arctic Air Conditioning

4.84(
828
)
Approved Pro

Arctic Air Conditioning

4.84(
828
)
Approved Pro
Super Service Award
Customers say: Quality work
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
673 local quotes requested

Arctic Air Conditioning is a family run business that has served New Jersey since 1977. We specialize in residential and commercial Air Conditioning, Heating, Humidification, and indoor air quality. Our other services include Plumbing, Electrical, and Garage Doors. Our philosophy is to provide top of the line equipment with the best installation and service available in the industry. We are an award winning Lennox Dealer and Home Depot Service Provider.

"Great!! Would hire again"

Erik A on May 2025

Arctic Air Conditioning is a family run business that has served New Jersey since 1977. We specialize in residential and commercial Air Conditioning, Heating, Humidification, and indoor air quality. Our other services include Plumbing, Electrical, and Garage Doors. Our philosophy is to provide top of the line equipment with the best installation and service available in the industry. We are an award winning Lennox Dealer and Home Depot Service Provider.

"Great!! Would hire again"

Erik A on May 2025


Avatar for Endrite Electrical LLC

Endrite Electrical LLC

5.00(
8
)
Approved Pro

Endrite Electrical LLC

5.00(
8
)
Approved Pro
1 years of experience

Endrite Electrical LLC is a trusted electrical services company that specializes in providing comprehensive electrical solutions for residential, commercial, and industrial clients. Known for their professionalism and reliability, Endrite Electrical offers a wide range of services, including electrical installations, repairs, upgrades, and maintenance. The company's team of licensed electricians is highly skilled and experienced, ensuring that all work is completed safely, efficiently, and in compliance with the latest codes and regulations. Whether it's rewiring a home, installing energy-efficient lighting, or handling complex electrical systems for businesses, Endrite Electrical LLC is committed to delivering quality workmanship and customer satisfaction. Their focus on precision, timely service, and cost-effective solutions has made them a reputable name in the electrical industry.

"Did a wonderful job. Dario is very helpful and explains every step of the process clearly."

Adam R on August 2025

Endrite Electrical LLC is a trusted electrical services company that specializes in providing comprehensive electrical solutions for residential, commercial, and industrial clients. Known for their professionalism and reliability, Endrite Electrical offers a wide range of services, including electrical installations, repairs, upgrades, and maintenance. The company's team of licensed electricians is highly skilled and experienced, ensuring that all work is completed safely, efficiently, and in compliance with the latest codes and regulations. Whether it's rewiring a home, installing energy-efficient lighting, or handling complex electrical systems for businesses, Endrite Electrical LLC is committed to delivering quality workmanship and customer satisfaction. Their focus on precision, timely service, and cost-effective solutions has made them a reputable name in the electrical industry.

"Did a wonderful job. Dario is very helpful and explains every step of the process clearly."

Adam R on August 2025


Avatar for RPM Electrical & Lighting, LLC

RPM Electrical & Lighting, LLC

5.00(
1
)
Approved Pro

RPM Electrical & Lighting, LLC

5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
9 years of experience

With over 12 years of experience, RPM Electrical & Lighting is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business. Call us today!

"He is amazing Ralphie did some led lighting work for me and did all the led conversions as well. He did nearly 30 jobs for me and is super responsive. I recommend his company to anyone."

Sam R on October 2022

With over 12 years of experience, RPM Electrical & Lighting is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business. Call us today!

"He is amazing Ralphie did some led lighting work for me and did all the led conversions as well. He did nearly 30 jobs for me and is super responsive. I recommend his company to anyone."

Sam R on October 2022


Gabriel's Electric

New on AngiNew on Angi
Approved Pro

Gabriel's Electric

New on AngiNew on Angi
Approved Pro
5 years of experience
Free onsite estimate

We are owner operated, and believe in building long-term relationships with our clients by delivering exceptional work through close attention to detail. We pride our company on reliability, great communication, integrity, and customer service. We are experts in our trade and will do our best to keep you as educated as we can on your particular project. We work for our customers on their schedule, as to make it as convenient as possible for you! We look forward to working with you!

We are owner operated, and believe in building long-term relationships with our clients by delivering exceptional work through close attention to detail. We pride our company on reliability, great communication, integrity, and customer service. We are experts in our trade and will do our best to keep you as educated as we can on your particular project. We work for our customers on their schedule, as to make it as convenient as possible for you! We look forward to working with you!


NM Electric

5.00(
1
)
Approved Pro

NM Electric

5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
22 years of experience

We offer over 30 years of experience in the electrical industry. We take on a wide range of electrical projects to include full installation for additions and remodels as well as generator installs, wiring and panel upgrades, and a variety of other jobs. We take pride in our quality of work and our commitment to outstanding results. We're committed to providing a personalized service for each individual project we take on. We look forward to building strong, long-term relationships with our clients and guarantee your satisfaction.

"Very professional always arrive on time and excellent work."

Latoya S on August 2021

We offer over 30 years of experience in the electrical industry. We take on a wide range of electrical projects to include full installation for additions and remodels as well as generator installs, wiring and panel upgrades, and a variety of other jobs. We take pride in our quality of work and our commitment to outstanding results. We're committed to providing a personalized service for each individual project we take on. We look forward to building strong, long-term relationships with our clients and guarantee your satisfaction.

"Very professional always arrive on time and excellent work."

Latoya S on August 2021


Avatar for MDL Electric, LLC

MDL Electric, LLC

4.81(
67
)
Approved Pro

MDL Electric, LLC

4.81(
67
)
Approved Pro
Customers say: Quick response
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
10 years of experience

is committed to excellence every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business

"They did a good job replacing the 220v outlet to 120v. Good pricing too."

Maria R on May 2024

is committed to excellence every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business

"They did a good job replacing the 220v outlet to 120v. Good pricing too."

Maria R on May 2024


Alfa Octopus

New on AngiNew on Angi
Approved Pro

Alfa Octopus

New on AngiNew on Angi
Approved Pro
16 years of experience
Free onsite estimate

Alfa Octopus is committed to excellence every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and responsibility in all of our jobs. We are a locally owned and operated business with more than 10 years of experience serving Orange, NJ and surrounding areas. There is no job too big, or too small for our team. Call today and let us put our experience to work for you!

Alfa Octopus is committed to excellence every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and responsibility in all of our jobs. We are a locally owned and operated business with more than 10 years of experience serving Orange, NJ and surrounding areas. There is no job too big, or too small for our team. Call today and let us put our experience to work for you!


Dorrman Electric, LLC

4.90(
5
)
Approved Pro

Dorrman Electric, LLC

4.90(
5
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
15 years of experience

As a 4th generation electrician, with over 15 years of experience, Dorrman Electric, LLC, has the knowledge and experience that you would expect from your trusted electrician. Specializing in generator work and panel upgrades, we will handle your project with the utmost care. Give us a call today for a free estimate!

"Good"

Sunith R on April 2021

As a 4th generation electrician, with over 15 years of experience, Dorrman Electric, LLC, has the knowledge and experience that you would expect from your trusted electrician. Specializing in generator work and panel upgrades, we will handle your project with the utmost care. Give us a call today for a free estimate!

"Good"

Sunith R on April 2021


7 Builders, LLC

New on AngiNew on Angi
Approved Pro

7 Builders, LLC

New on AngiNew on Angi
Approved Pro
22 years of experience
Free onsite estimate

7 Electric is your top choice for electrical projects for the last 13 years. Electrical is what we specialize in and we're ready to bring the spark back to your home. Call us today for your next electrical project!

7 Electric is your top choice for electrical projects for the last 13 years. Electrical is what we specialize in and we're ready to bring the spark back to your home. Call us today for your next electrical project!


Control Electrical Contractor L.L.C.

New on AngiNew on Angi
Approved Pro

Control Electrical Contractor L.L.C.

New on AngiNew on Angi
Approved Pro
2 years of experience

Control Electrical Contractor is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have over 20 years of hands on experience, to provide innovative ideas and suggestions tailored to your projects. Our services are customized to your individual needs, paying close attention to the details of each project that we are involved with. Please feel free to contact us today!

Control Electrical Contractor is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have over 20 years of hands on experience, to provide innovative ideas and suggestions tailored to your projects. Our services are customized to your individual needs, paying close attention to the details of each project that we are involved with. Please feel free to contact us today!

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Generator Install questions, answered by experts

You may need a permit for a portable generator if you’ll be installing a transfer switch for your primary residence or similar work. Otherwise, a permit for other uses may not be necessary. Check your local building codes or ask a local generator installer for more information about your local regulations.

You can expect a diesel generator to last for up to 30,000 hours of use, which works out to 20 to 25 years with the proper maintenance, of course. That depends on how much you use it, so a diesel generator used for emergencies a couple of times a year will last a lot longer than a generator that takes over for a faulty electrical grid every month for a day or two. 

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.

Here’s what you can run with different wattages and types of generators:

Portable generator:

  • 2,000 watts can handle a large appliance like a freezer or refrigerator, plus a few smaller items like phones or computer chargers. 

  • 4,000 watts will keep two large appliances operating and a few smaller devices.

  • 8,000 watts should power most essential appliances and other devices, including a sump pump, well pump, or your dishwasher.

Partial to whole-house generator:

  • 20,000 watts and above will make it seem like your home’s power is still on.

While the rating will tell you how many watts the refrigerator needs at the peak of its cycle, it requires additional wattage to start. At the bare minimum, you’ll need a 1,500-watt generator to get the fridge up and running after a blackout. A 2,000-watt generator should be sufficient for most home refrigerators.

The Madison, NJ homeowners’ guide to generator installs

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