Top-rated generator install pros.

Get matched with top generator install pros in Dennis, NJ

Enter your ZIP and get matched with up to 5 pros

Find Generator install pros in Dennis

Avatar for Ewing Electric Co

Ewing Electric Co

4.60(
10
)
Approved Pro

Ewing Electric Co

4.60(
10
)
Approved Pro
Customers say: Quality work
262 local quotes requested
10 years of experience

Charlotte Premier Electrical Contractor. No job too big or small. Let us help you find the right lighting solutions for your home or business. Car charging station installations. Stand by Generators. LED Lighting. Can Lights. Custom wiring

"Mo from Ewing did a very good job. All the work was cleanly done & very tidy & professional. He showed up the day after calling & gave a much more reasonable quote for all the electrical work then Roby Electric did. He was able to fit me in the schedule the next day. & did everything in about 6 hours. If i ever need more work i will definitely call Ewing & will recommend to my neighbors."

Ross G on October 2025

Charlotte Premier Electrical Contractor. No job too big or small. Let us help you find the right lighting solutions for your home or business. Car charging station installations. Stand by Generators. LED Lighting. Can Lights. Custom wiring

"Mo from Ewing did a very good job. All the work was cleanly done & very tidy & professional. He showed up the day after calling & gave a much more reasonable quote for all the electrical work then Roby Electric did. He was able to fit me in the schedule the next day. & did everything in about 6 hours. If i ever need more work i will definitely call Ewing & will recommend to my neighbors."

Ross G on October 2025


Avatar for Raynor Services- Electrical/HVAC/Generators/Solar

Raynor Services- Electrical/HVAC/Generators/Solar

4.74(
135
)
Approved Pro

Raynor Services- Electrical/HVAC/Generators/Solar

4.74(
135
)
Approved Pro
Customers say: Quick response
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
101 local quotes requested

We are a local Female & Family owned & operated contractor who has been serving the South Jersey area for over 30 years in all their Electrical, Heating, Cooling, & Generator needs. We perform both light commercial & residential installations, renovations & upgrades. We train our team to not just have the technical skills needed to do their jobs well, but how to help customers get to what they want for both comfort AND budget. Working with us you'll come to expect an amazing office staff to take your calls, address your needs & get the best technicians to complete the work you need done. Our technicians receive weekly training to stay on top of today's ever changing technology. They are all uniformed, background checked & drug tested. We also always give you an upfront price & get your approval before we start any work. We cannot wait to provide you "Service The Way It Used To Be"! Give us a call today!! We proudly hold an A+ Rating with the Better Business Bureau.

"Very well. Was very informative."

Shannon C on August 2024

We are a local Female & Family owned & operated contractor who has been serving the South Jersey area for over 30 years in all their Electrical, Heating, Cooling, & Generator needs. We perform both light commercial & residential installations, renovations & upgrades. We train our team to not just have the technical skills needed to do their jobs well, but how to help customers get to what they want for both comfort AND budget. Working with us you'll come to expect an amazing office staff to take your calls, address your needs & get the best technicians to complete the work you need done. Our technicians receive weekly training to stay on top of today's ever changing technology. They are all uniformed, background checked & drug tested. We also always give you an upfront price & get your approval before we start any work. We cannot wait to provide you "Service The Way It Used To Be"! Give us a call today!! We proudly hold an A+ Rating with the Better Business Bureau.

"Very well. Was very informative."

Shannon C on August 2024


Avatar for Mills Electric Company LLC

Mills Electric Company LLC

5.00(
8
)
Approved Pro

Mills Electric Company LLC

5.00(
8
)
Approved Pro
Customers say: Quick response
2 years of experience
Emergency services offered

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! 18 years of experience with electrical work.

"Installed a security doorbell. Great service, clean work, great prices!"

Evan H on July 2024

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! 18 years of experience with electrical work.

"Installed a security doorbell. Great service, clean work, great prices!"

Evan H on July 2024


J. N. Greene Electrical Contracting Inc.

5.00(
7
)
Approved Pro

J. N. Greene Electrical Contracting Inc.

5.00(
7
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
30 years of experience

I started as a Master Electrician in the early 90's and continued to provide superb services to surrounding communities. At company , our company is based on the belief that our customers' needs are of the utmost importance. Our team is committed to meeting those needs. We welcome the opportunity to earn your trust and deliver you the best service. No job is too big or too small for our experienced team. Call today for a quote.

"Tim and his team are top notch. Very professional, courteous and fair. Our new go-to electricians!"

Brian K on June 2023

I started as a Master Electrician in the early 90's and continued to provide superb services to surrounding communities. At company , our company is based on the belief that our customers' needs are of the utmost importance. Our team is committed to meeting those needs. We welcome the opportunity to earn your trust and deliver you the best service. No job is too big or too small for our experienced team. Call today for a quote.

"Tim and his team are top notch. Very professional, courteous and fair. Our new go-to electricians!"

Brian K on June 2023


Avatar for Ewing Electric Co.

Ewing Electric Co.

4.92(
18
)
Approved Pro

Ewing Electric Co.

4.92(
18
)
Approved Pro
Customers say: True professional
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
5 years of experience

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 the start to the 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.

"Excellent customer service and communication. Delivered services within the time promised. Have no reservations about using them again for any electrical services that I may need. Very appreciative of the level of service they provided."

Roy G on August 2024

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 the start to the 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.

"Excellent customer service and communication. Delivered services within the time promised. Have no reservations about using them again for any electrical services that I may need. Very appreciative of the level of service they provided."

Roy G on August 2024


Ready To Go

5.00(
1
)
Approved Pro

Ready To Go

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

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

"He was very professional, a nice guy and on time! I was very pleased with him!"

Tamika X on August 2021

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

"He was very professional, a nice guy and on time! I was very pleased with him!"

Tamika X on August 2021


DLB Electric Company

New on AngiNew on Angi
Approved Pro

DLB Electric Company

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

DLB Electric Company is your premier choice for electrical work and advise. We have provided high quality work and friendly customer service in Charlotte for years. Call today and let us take care of all electrical needs! We specialize in both residential and commercial projects.

DLB Electric Company is your premier choice for electrical work and advise. We have provided high quality work and friendly customer service in Charlotte for years. Call today and let us take care of all electrical needs! We specialize in both residential and commercial projects.


Avatar for EST Electrical

EST Electrical

4.76(
81
)
Approved Pro

EST Electrical

4.76(
81
)
Approved Pro
Customers say: True professional
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
10 years of experience

With years of experience serving the area, we are your solution for all your (PWC) needs. We take great pride in our extreme professionalism, timeliness and superior customer service on every job. We make sure to develop a lasting relationship so that the next time service is needed there will be no question on who to call. Check out our 5 star reviews from happy customers! Call us today so we can discuss your needs and make a plan that fits your budget. Satisfaction guaranteed!

"The service was excellent and professional job well done I’m very impressed and satisfied, very polite knowledgeable and skilled, thumbs up "

Leroy R on May 2025

With years of experience serving the area, we are your solution for all your (PWC) needs. We take great pride in our extreme professionalism, timeliness and superior customer service on every job. We make sure to develop a lasting relationship so that the next time service is needed there will be no question on who to call. Check out our 5 star reviews from happy customers! Call us today so we can discuss your needs and make a plan that fits your budget. Satisfaction guaranteed!

"The service was excellent and professional job well done I’m very impressed and satisfied, very polite knowledgeable and skilled, thumbs up "

Leroy R on May 2025


Avatar for W B Lightning Rods

W B Lightning Rods

4.93(
297
)
Approved Pro

W B Lightning Rods

4.93(
297
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
175 local quotes requested

WB Lightning Rods is a third-generation lightning protection contractor. Family Owned and operated for over 60 years. installing U.L. Listed Lightning protection systems, All Over the East coast, Midwest south east and south west regions of the U.S. Installations on Residential Homes, Estate Properties, Agricultural and Equestrian Properties. Lightning Protection for trees is also available. No job to big or small References upon Request. Contact us today for a no cost or obligation estimate. We look forward to working with you on your Lightning Protection Project. Thank you. **WE ARE NOT ELECTRICIANS** **WE ONLY INSTALL LIGHTNING PROTECTION SYSTEMS **

"Great company, they were fast, friendly, & accommodating. I would definitely use them again."

Jennifer B on October 2024

WB Lightning Rods is a third-generation lightning protection contractor. Family Owned and operated for over 60 years. installing U.L. Listed Lightning protection systems, All Over the East coast, Midwest south east and south west regions of the U.S. Installations on Residential Homes, Estate Properties, Agricultural and Equestrian Properties. Lightning Protection for trees is also available. No job to big or small References upon Request. Contact us today for a no cost or obligation estimate. We look forward to working with you on your Lightning Protection Project. Thank you. **WE ARE NOT ELECTRICIANS** **WE ONLY INSTALL LIGHTNING PROTECTION SYSTEMS **

"Great company, they were fast, friendly, & accommodating. I would definitely use them again."

Jennifer B on October 2024


Avatar for Harris Plumbing, Heating, Air & Electrical

Harris Plumbing, Heating, Air & Electrical

4.31(
27
)
Approved Pro

Harris Plumbing, Heating, Air & Electrical

4.31(
27
)
Approved Pro
Customers say: Quick response
568 local quotes requested
37 years of experience

Harris Plumbing, Heating, Air & Electrical is proud to be a locally owned and operated business that has been serving the community since 1988! With years of experience and unmatched expertise, we can help with any and all of your HVAC, Plumbing and Electrical needs. Since opening our doors we have built our business on providing our customers with the highest quality products and service at a fair price. From installations to service, you can count on our techs to be timely, tidy, and when the job is done, that you will be 100% satisfied with the work. Let us show you the Harris way, get in touch today!

"After inspecting the problem, the service man roamed around my house telling me all the things that needed to be fixed. He then showed me the tank was loose and tightened 2 bolts and caulked around the bottom. This visit wound up costing over $400, and could have been done in a matter of minutes. It took 4 phone calls to get a small refund, and cancelled contract."

JAMES R on November 2025

Harris Plumbing, Heating, Air & Electrical is proud to be a locally owned and operated business that has been serving the community since 1988! With years of experience and unmatched expertise, we can help with any and all of your HVAC, Plumbing and Electrical needs. Since opening our doors we have built our business on providing our customers with the highest quality products and service at a fair price. From installations to service, you can count on our techs to be timely, tidy, and when the job is done, that you will be 100% satisfied with the work. Let us show you the Harris way, get in touch today!

"After inspecting the problem, the service man roamed around my house telling me all the things that needed to be fixed. He then showed me the tank was loose and tightened 2 bolts and caulked around the bottom. This visit wound up costing over $400, and could have been done in a matter of minutes. It took 4 phone calls to get a small refund, and cancelled contract."

JAMES R on November 2025

...
Showing 1-10 of 89
Generator Install questions, answered by experts

Generator size requirements vary wildly among properties, but typical generator sizes are listed below based on home square footage:

  • 1,000 sq ft: 6–9 kW

  • 1,500 sq ft: 7–10 kW

  • 2,000 sq ft: 10–14kW

  • 2,500 sq ft: 12–16kW

  • 3,000 sq ft: 16–20kW+

Unfortunately, home square footage isn’t always a good indicator of generator size requirements. Instead, you should call in a professional to discuss which items in your home you’d like to run via your generator. They can calculate peak and average consumption for those items and then size your generator appropriately for optimal performance.

Sizing a generator is a careful process that requires calculating the electrical load of your entire house. You have to take into account every device you want to use and their wattage requirements, plus the wattage needed to start them, and look for a generator that can safely run all that at around 80% capacity.

In more practical terms, a small home can run on a 10,000-watt generator (and if you only want to power a few key appliances, much less than that). A mid-sized home may need something between 15,000 and 22,000 watts. Larger homes require 25,000 watts or more. 

Homeowners can often access federal tax credits, such as the Investment Tax Credit (ITC), which covers a percentage of installation costs. Many states and utilities offer additional rebates, grants, or performance-based incentives. These programs can significantly lower your upfront investment. Check the Database of State Incentives for Renewables and Efficiency (DSIRE) or contact your local energy office for current offers.

Energy output depends on turbine size, average wind speed at your site, and system efficiency. A 5 kW turbine in a good wind location can generate 8,000 to 12,000 kilowatt-hours per year, which may cover a large portion of an average home’s needs. Accurate output estimates require a professional wind assessment and a review of your household’s energy usage patterns.

When choosing the right size generator for your needs, consider a few items to help calculate the wattage you’ll need. Start by determining which household items and appliances you want to power, and then add the wattages together. Check out the wattage of these essential appliances:

  • Refrigerator: 600 watts

  • Large dehumidifier: 700 watts

  • Large window air conditioner: 1,400 watts

  • Water heater: 3,000 watts

Running home appliances like these requires a partial or whole-house generator. A portable generator may be enough to power your home if you only plan to keep a refrigerator and freezer running. 

The Dennis, NJ homeowners’ guide to generator installs

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