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  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon42
    Verified generator installs reviews

Find Generator install pros in Mendham

Avatar for B-Tec Electric Co LLC

B-Tec Electric Co LLC

4.98(
154
)
Approved Pro

B-Tec Electric Co LLC

4.98(
154
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
33 years of experience

B-Tec Electric Co LLC is an independent electrical contractor specializing in residential and light commercial electrical service and installations. We are fully licensed, bonded, and insured independent electrical contractors based in New Jersey. We are a family owned & operated business, servicing Morris County as well as Sussex County since 1993.

"They were a great company, honest, friendly, professional."

Carlos G on January 2026

B-Tec Electric Co LLC is an independent electrical contractor specializing in residential and light commercial electrical service and installations. We are fully licensed, bonded, and insured independent electrical contractors based in New Jersey. We are a family owned & operated business, servicing Morris County as well as Sussex County since 1993.

"They were a great company, honest, friendly, professional."

Carlos G on January 2026


Avatar for Green Sun Energy Services, LLC

Green Sun Energy Services, LLC

5.00(
68
)
Approved Pro

Green Sun Energy Services, LLC

5.00(
68
)
Approved Pro
Customers say: Quick response
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
16 years of experience

Founded in 2010, Green Sun Energy Services has helped thousands of New Jersey homeowners become more energy independent. We are a leading provider of solar panel installation programs, EV charging stations, GAF Timberline roofing systems, Generac generator installations and maintenance, as well as seasonal services like soft washing and professional Christmas light installation. Headquartered in Middletown, NJ, our local team proudly serves clients throughout Monmouth, Ocean, Middlesex, Somerset, Mercer, and Union counties.

"Generator failed to start. Karen was able to set up a service appointment the next day. Michael arrived and knew what the problem was before inspecting the generator. Generator running again 10 minutes later. GreenSun installed our Generator app.11 years ago and has been performing serrvicing yearly. Glen,Karen And the entire staff are the best. They really care."

J D on June 2025

Founded in 2010, Green Sun Energy Services has helped thousands of New Jersey homeowners become more energy independent. We are a leading provider of solar panel installation programs, EV charging stations, GAF Timberline roofing systems, Generac generator installations and maintenance, as well as seasonal services like soft washing and professional Christmas light installation. Headquartered in Middletown, NJ, our local team proudly serves clients throughout Monmouth, Ocean, Middlesex, Somerset, Mercer, and Union counties.

"Generator failed to start. Karen was able to set up a service appointment the next day. Michael arrived and knew what the problem was before inspecting the generator. Generator running again 10 minutes later. GreenSun installed our Generator app.11 years ago and has been performing serrvicing yearly. Glen,Karen And the entire staff are the best. They really care."

J D on June 2025


"They installed 2 ceiling fans and were on time, very professional, and I would highly recommend this company. They were done in under an hour and it was top notch service. Pricing was very reasonable and their responsiveness could not be better."

Dina D on July 2024

Anzalone Electric & Lighting has over 30 years experience. We provide prompt reliable service at competitive prices.

"They installed 2 ceiling fans and were on time, very professional, and I would highly recommend this company. They were done in under an hour and it was top notch service. Pricing was very reasonable and their responsiveness could not be better."

Dina D on July 2024


Avatar for MD Electrical Solutions, LLC

MD Electrical Solutions, LLC

4.91(
122
)
Approved Pro

MD Electrical Solutions, LLC

4.91(
122
)
Approved Pro
Customers say: True professional
Recommended by 99% of Angi customers
Recommended by 99% of HomeAdvisor customers
19 years of experience

MD Electrical Solutions, LLC is a locally owned and operated company that values honesty and integrity, and treats your home as if it were our own. We take pride in our work and strive for customer satisfaction. We care about our clientele and will work with you to achieve a final project that looks great and is within your budget. No job is too small. You will find us to be competitively priced, while still paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships. Give us a call today to get your project started!

"The job was done beautifully. I highly recommend this company. Very fair pricing more importantly highly knowledgeable."

Maurice S on March 2024

MD Electrical Solutions, LLC is a locally owned and operated company that values honesty and integrity, and treats your home as if it were our own. We take pride in our work and strive for customer satisfaction. We care about our clientele and will work with you to achieve a final project that looks great and is within your budget. No job is too small. You will find us to be competitively priced, while still paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships. Give us a call today to get your project started!

"The job was done beautifully. I highly recommend this company. Very fair pricing more importantly highly knowledgeable."

Maurice S on March 2024


Avatar for North Crest, LLC

North Crest, LLC

4.98(
45
)
Approved Pro

North Crest, LLC

4.98(
45
)
Approved Pro
Customers say: Quick response
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
6 years of experience

North Crest LLC is committed to excellence in every aspect of our electrical business. While we are relatively new in business, we have been doing many aspects of electrical work for over 30 years. 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 customer's interests, and make their concerns the basis of our business. Please call to set up an appointment and allow us to earn your business. North Crest, LLC is licensed and permitted in New Jersey. We are also Licensed in Rockland County, New York.

"Great job! Very professional and a pleasure to do business with. We’d definitely use his services again."

Aviv W on March 2025

North Crest LLC is committed to excellence in every aspect of our electrical business. While we are relatively new in business, we have been doing many aspects of electrical work for over 30 years. 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 customer's interests, and make their concerns the basis of our business. Please call to set up an appointment and allow us to earn your business. North Crest, LLC is licensed and permitted in New Jersey. We are also Licensed in Rockland County, New York.

"Great job! Very professional and a pleasure to do business with. We’d definitely use his services again."

Aviv W on March 2025


APOLLO ELECTRICAL CONTRACTORS LLC

5.00(
37
)
Approved Pro

APOLLO ELECTRICAL CONTRACTORS LLC

5.00(
37
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
27 years of experience

Over 37 years experience. Personalized service. Your satisfaction is very important to us, and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service at a reasonable price. Check out our services offered and call or click to schedule a free estimate today.

"great job, its done."

Christopher T on November 2025

Over 37 years experience. Personalized service. Your satisfaction is very important to us, and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service at a reasonable price. Check out our services offered and call or click to schedule a free estimate today.

"great job, its done."

Christopher T on November 2025


Avatar for Kope Electric LLC

Kope Electric LLC

4.95(
84
)
Approved Pro

Kope Electric LLC

4.95(
84
)
Approved Pro
Customers say: True professional
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
18 years of experience

Kope Electric, LLC, is your LOCAL NJ BASED and LICENSED electrical contractor. Proudly serving Hunterdon, Somerset, Morris and Warren counties since 2008, you can expect professional quality service, quick responses, prompt appointments, & industry expertise at a competitive cost. Our commitment to safety and customer satisfaction guarantees your job will be “done once & done right.” Don't risk your home and family by hiring a random contractor who is unqualified, unlicensed, and unresponsive! For all your residential to commercial electrical needs- Trust Kope Electric, 908-722-5673, the area's best electricians!

"They responded quickly to my request to install a whole house surge protector. I was able to email a picture of the work site and received a quote the following day. The work was scheduled within a week. The electrician arrived promptly and completed the project quickly. The cost quoted was the amount billed."

Charles B on July 2022

Kope Electric, LLC, is your LOCAL NJ BASED and LICENSED electrical contractor. Proudly serving Hunterdon, Somerset, Morris and Warren counties since 2008, you can expect professional quality service, quick responses, prompt appointments, & industry expertise at a competitive cost. Our commitment to safety and customer satisfaction guarantees your job will be “done once & done right.” Don't risk your home and family by hiring a random contractor who is unqualified, unlicensed, and unresponsive! For all your residential to commercial electrical needs- Trust Kope Electric, 908-722-5673, the area's best electricians!

"They responded quickly to my request to install a whole house surge protector. I was able to email a picture of the work site and received a quote the following day. The work was scheduled within a week. The electrician arrived promptly and completed the project quickly. The cost quoted was the amount billed."

Charles B on July 2022


Avatar for Best Dressed Electric

Best Dressed Electric

5.00(
31
)
Approved Pro

Best Dressed Electric

5.00(
31
)
Approved Pro
Customers say: True professional
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
4 years of experience

The replacement of any receptacle, switch, or lighting fixture, or part thereof. Receptacles in locations where ground-fault circuit interrupter protection, damp/wet, tamper-resistant are required. Repairs to any electrically operated equipment such as doorbells, communication systems, and any motor operated device. The installation of burglar alarms, security systems, or doorbells one and two family dwellings. Smoke and co detectors. Etc…,

"Jeremy was quick to respond, arrived right on time, and did a phenomenal job faster than most others would. He was very neat and professional and I highly recommend his services to anyone looking to have an electrical project completed."

Michael D on February 2025

The replacement of any receptacle, switch, or lighting fixture, or part thereof. Receptacles in locations where ground-fault circuit interrupter protection, damp/wet, tamper-resistant are required. Repairs to any electrically operated equipment such as doorbells, communication systems, and any motor operated device. The installation of burglar alarms, security systems, or doorbells one and two family dwellings. Smoke and co detectors. Etc…,

"Jeremy was quick to respond, arrived right on time, and did a phenomenal job faster than most others would. He was very neat and professional and I highly recommend his services to anyone looking to have an electrical project completed."

Michael D on February 2025


"He was exceptional, and he discussed the work with me at every stage."

Okey E on June 2023

On Time Communications, Inc., offers professional and timely service for all of your in-home communication needs. With close attention to the details, we'll make sure you're well connected in no time.

"He was exceptional, and he discussed the work with me at every stage."

Okey E on June 2023


Avatar for Guardian Electric, LLC

Guardian Electric, LLC

4.93(
36
)
Approved Pro

Guardian Electric, LLC

4.93(
36
)
Approved Pro
Customers say: Quick response
14 years of experience
Free onsite estimate

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work, and communicate, with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"Good service and great guys. Guardian has gone above and beyond to provide excellent service."

Robert O on August 2020

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work, and communicate, with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"Good service and great guys. Guardian has gone above and beyond to provide excellent service."

Robert O on August 2020

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Generator Install questions, answered by experts

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 last 20 to 40 years with normal operation and proper maintenance. If you look up the specifications for your generator, you may be able to find a lifespan rated in hours of operation. Life expectancy will vary depending on how often and for how long you use the generator each year. Choosing a fuel with low impact like natural gas or diesel can help generators last as long as possible.

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.

Generators run on a variety of fuel types, ranging from natural gas to solar power. Keep in mind that fuel costs varying by type:

  • Natural gas: $2,000–$21,000 per year 

  • Liquid propane: $2,000–$21,000 per year

  • Diesel: $3,000–$20,000 per year

  • Gasoline: $500–$3,000 per year

  • Solar generator: $2,000–$25,000 per unit

  • Battery backup: $10,000–$25,000 per unit

No, you shouldn’t use an extension cord to plug a generator directly into your home without using a transfer switch. That’s because systems like pumps and HVAC fans need a steady power source that might not be available directly from your generator alone. If you bypass the circuit breaker box, you risk damaging your electrical system, creating a risk of electrical fire or electrical shock to you or any workers repairing lines on your local electrical grid.

The Mendham, NJ homeowners’ guide to generator installs

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

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