Top-rated generator install pros.

Get matched with top generator install pros in Denville, NJ

There are 9 highly-rated local generator install pros.

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    Average homeowner rating
  • Verified reviews icon34
    Verified generator installs reviews

Find Generator install pros in Denville

Avatar for Pipe Works Services Inc

Pipe Works Services Inc

33 River Rd
4.43(
175
)
Approved Pro

Pipe Works Services Inc

33 River Rd
4.43(
175
)
Approved Pro
Customers say: Quick response
313 local quotes requested
25 years of experience

Since 2000, we have built our reputation as one of Northern New Jersey’s most trusted experts for home comfort and efficiency. Improving the overall comfort and energy efficiency of your home is our #1 priority, and we believe we are the best. What sets us apart from other home energy contractors is that our team undergoes continuous extensive training that is unmatched by anyone in the industry. You can rest assured that we will perform the job right the first time around! With over 75 years of combined service experience, Pipe Works Services Inc. is a New Jersey Plumbing, Heating, Air Conditioning, Water Conditioning, Insulation, Electrical, Installation, Drain Cleaning, Maintenance, Replacement company located in Morris County. Pipe Works will send you only the best technician or specialist to fix, replace or install your needs.

"Brian was a gem. Great service from Pipeworks as always."

Marian M on October 2025

Since 2000, we have built our reputation as one of Northern New Jersey’s most trusted experts for home comfort and efficiency. Improving the overall comfort and energy efficiency of your home is our #1 priority, and we believe we are the best. What sets us apart from other home energy contractors is that our team undergoes continuous extensive training that is unmatched by anyone in the industry. You can rest assured that we will perform the job right the first time around! With over 75 years of combined service experience, Pipe Works Services Inc. is a New Jersey Plumbing, Heating, Air Conditioning, Water Conditioning, Insulation, Electrical, Installation, Drain Cleaning, Maintenance, Replacement company located in Morris County. Pipe Works will send you only the best technician or specialist to fix, replace or install your needs.

"Brian was a gem. Great service from Pipeworks as always."

Marian M on October 2025


Avatar for Best Dressed Electric

Best Dressed Electric

16 Hilltop Rd
5.00(
30
)
Approved Pro

Best Dressed Electric

16 Hilltop Rd
5.00(
30
)
Approved Pro
Super Service Award
Customers say: True professional
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
3 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


Avatar for Hank's Electrical Contracting LLC

Hank's Electrical Contracting LLC

206 Hurd St
4.96(
27
)
Approved Pro

Hank's Electrical Contracting LLC

206 Hurd St
4.96(
27
)
Approved Pro
Customers say: Quick response
27 local quotes requested
2 years of experience

Hank's Electrical Contracting LLC is dedicated to providing our customers with the best quality and craftsmanship. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. We look forward to working with you!

"Hank, Completely the job efficiently and was very professional. I would recommend him to anyone who needs electrical work."

Charley K on August 2025

Hank's Electrical Contracting LLC is dedicated to providing our customers with the best quality and craftsmanship. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. We look forward to working with you!

"Hank, Completely the job efficiently and was very professional. I would recommend him to anyone who needs electrical work."

Charley K on August 2025


Avatar for RPM Electrical & Lighting, LLC

RPM Electrical & Lighting, LLC

45 Prospect Road
5.00(
1
)
Approved Pro

RPM Electrical & Lighting, LLC

45 Prospect Road
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


NM Electric

386 Watchung Avenue
5.00(
1
)
Approved Pro

NM Electric

386 Watchung Avenue
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 Harrison Avenue
4.81(
67
)
Approved Pro

MDL Electric, LLC

4 Harrison Avenue
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


7 Builders, LLC

497 South 11th Street, Apt. 1
New on AngiNew on Angi
Approved Pro

7 Builders, LLC

497 South 11th Street, Apt. 1
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.

465 W Main St
New on AngiNew on Angi
Approved Pro

Control Electrical Contractor L.L.C.

465 W Main St
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!


OBEZ Electrical Contractors, LLC

208 W Chrystal St
4.94(
25
)
Approved Pro

OBEZ Electrical Contractors, LLC

208 W Chrystal St
4.94(
25
)
Approved Pro
Customers say: Quick response
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
10 years of experience

We are a locally owned and operated company. We take on a wide range of electrical projects to include full installation for additions and remodels as well as wiring and panel upgrades and a variety of other jobs. We're committed to providing a personalized service for each individual project we take on & look forward to building strong, long-term relationships with our clients and guarantee your satisfaction.

"I needed assorted areas addressed due to a building assessment review before a sale. It was wonderful to work with someone who gave a fast and honest appraisal of the work that needed to be done. There was an outlet that was flagged as not working, but that was found to be lightswitch. There was a broken light fixture, replaced quickly. A loose outlet box tightened. The list was significant, but handled quickly and professionally. Charged 1.75 hours plus materials. HIGHLY recommended."

Roger B on August 2016

We are a locally owned and operated company. We take on a wide range of electrical projects to include full installation for additions and remodels as well as wiring and panel upgrades and a variety of other jobs. We're committed to providing a personalized service for each individual project we take on & look forward to building strong, long-term relationships with our clients and guarantee your satisfaction.

"I needed assorted areas addressed due to a building assessment review before a sale. It was wonderful to work with someone who gave a fast and honest appraisal of the work that needed to be done. There was an outlet that was flagged as not working, but that was found to be lightswitch. There was a broken light fixture, replaced quickly. A loose outlet box tightened. The list was significant, but handled quickly and professionally. Charged 1.75 hours plus materials. HIGHLY recommended."

Roger B on August 2016


Diverse Electrical Contracting, Inc.

11 Faber Road
5.00(
4
)
Approved Pro

Diverse Electrical Contracting, Inc.

11 Faber Road
5.00(
4
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
34 years of experience

Serving New Jersey with quality service for nearly 15 years, Diverse Electrical Contracting Inc. are the experts you need for your commercial property. We pride ourselves on customer service and getting the job done right the first time. Give us a call today for your free estimate!

"They solved my lighting issue for my business in time for evening visitation. It was my emergency and they made it theirs. So happy to have a business that goes above and beyond expectations."

Stephen C on December 2020

Serving New Jersey with quality service for nearly 15 years, Diverse Electrical Contracting Inc. are the experts you need for your commercial property. We pride ourselves on customer service and getting the job done right the first time. Give us a call today for your free estimate!

"They solved my lighting issue for my business in time for evening visitation. It was my emergency and they made it theirs. So happy to have a business that goes above and beyond expectations."

Stephen C on December 2020

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Generator Install questions, answered by experts

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.

Many services include assembling the unit and securing it in the window. Confirm with your provider.

Setting up utilities on a vacant property usually takes at least a few months, or between 6 weeks to 16 weeks. This process requires working with the local planning and zoning department, hiring a building contractor or engineer to design the utility layout, securing permits, laying the lines, and connecting the utilities.

In many cases, yes. There are models called dual-fuel generators and fuel switches, but only between certain types of fuel. For example, with the right setup you can convert a generator from natural gas to propane. Some allow switching between diesel and gasoline. There are even tri-fuel generators available in some cases, which adds a large layer of security if you are worried about fuel availability in times of crisis. Always check your generator capabilities and manual instructions before trying to switch fuels. Some generators can use another fuel but may need a fuel conversion kit to prep them first.

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.

The Denville, NJ homeowners’ guide to generator installs

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

What do you need done? We’ll find top pros.
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