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TRUSTED BY PORTLAND, ME HOMEOWNERS

  • Average homeowner rating star icon4.8
    Average homeowner rating
  • Verified reviews icon13
    Verified generator installs reviews

Verified Reviews for Generator Install pros in Portland, ME

*The Angi rating for Generator Install companies in Portland, ME is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Generator Install needs.

*The HomeAdvisor rating for Generator Install companies in Portland, ME is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Generator Install needs.

Last update on December 05, 2025

Find Generator install pros in Portland

Avatar for residential Electrician

residential Electrician

5.00(
4
)
•Approved Pro

residential Electrician

5.00(
4
)
•Approved Pro
51 local quotes requested
Warranties offered

Well versed in a variety of residential electrical situations. Skilled at identifying and remedying issues in residential electrical systems.

"I hired Bill to change a 15amp outlet to a 20amp. The job was more in depth than I anticipated because of the distance from circuit breaker to outlet location and the need for new wiring. We discussed discussed other location possibilities, but Bill was confident he could complete the job as I had planned. He did so with absolute confidence and professionalism. Much appreciated!"

SHERYL F on November 2025

Well versed in a variety of residential electrical situations. Skilled at identifying and remedying issues in residential electrical systems.

"I hired Bill to change a 15amp outlet to a 20amp. The job was more in depth than I anticipated because of the distance from circuit breaker to outlet location and the need for new wiring. We discussed discussed other location possibilities, but Bill was confident he could complete the job as I had planned. He did so with absolute confidence and professionalism. Much appreciated!"

SHERYL F on November 2025

Avatar for Sellick Electric

Sellick Electric

5.00(
1
)
•Approved Pro

Sellick Electric

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

I pride myself on my professionalism, as well as my ability to complete every job to the homeowner's total satisfaction. I never leave a job unfinished, or a homeowner not 100% satisfied with my level of service - Call today!

"Sellick Electric is top notch! Chuck did an amazing job on the electrical service upgrade. He is meticulous about his work and really cares about the customer. He is reliable and honest. The quote I was provided is exactly what he said it would be with no surprises at the completion of the work. I can't wait to recommend him to my friends."

John H on November 2023

I pride myself on my professionalism, as well as my ability to complete every job to the homeowner's total satisfaction. I never leave a job unfinished, or a homeowner not 100% satisfied with my level of service - Call today!

"Sellick Electric is top notch! Chuck did an amazing job on the electrical service upgrade. He is meticulous about his work and really cares about the customer. He is reliable and honest. The quote I was provided is exactly what he said it would be with no surprises at the completion of the work. I can't wait to recommend him to my friends."

John H on November 2023

Avenergy Electric

4.76(
25
)
•Approved Pro

Avenergy Electric

4.76(
25
)
•Approved Pro
Customers say: Quality work
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
16 years of experience

With several years experience Avenergy Electric, works hard to bring each customer the best possible service and quality available. We background check, and pre-screen everybody we bring on board. We look forward to working with you on your next project. We welcome your questions, and thank you for your business!

"Josh is fair and very responsive with his crew of interchangeable professionals who are prompt and professional. My project was a huge undertaking across four apartments involving exterior panel installations and a complete rewiring of the entire building. I worked with about 6 of his crew members spanning months without any meaningful complaint and would depend on them for all my future electrical endeavors. His pricing is very fair for the quality of work you get."

Kingsley S on August 2020

With several years experience Avenergy Electric, works hard to bring each customer the best possible service and quality available. We background check, and pre-screen everybody we bring on board. We look forward to working with you on your next project. We welcome your questions, and thank you for your business!

"Josh is fair and very responsive with his crew of interchangeable professionals who are prompt and professional. My project was a huge undertaking across four apartments involving exterior panel installations and a complete rewiring of the entire building. I worked with about 6 of his crew members spanning months without any meaningful complaint and would depend on them for all my future electrical endeavors. His pricing is very fair for the quality of work you get."

Kingsley S on August 2020

Avatar for Beacon Electric, LLC

Beacon Electric, LLC

4.93(
7
)
•Approved Pro

Beacon Electric, LLC

4.93(
7
)
•Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
25 years of experience

Beacon Electric, LLC, offers fast, friendly, and courteous service. We use only the best products and are always eager to answer your questions and concerns. We have built our reputation on our commitment to providing quality service, which has earned us an impressive reputation with many valuable customers. We take pride in delivering value through top quality, dependable work with excellent price and reliable, honest service.

"Kevin was great to work with. He was flexible with our schedule. The work was excellent and he stayed on top of the project all the way through the power company activating the service."

Wayne P on November 2019

Beacon Electric, LLC, offers fast, friendly, and courteous service. We use only the best products and are always eager to answer your questions and concerns. We have built our reputation on our commitment to providing quality service, which has earned us an impressive reputation with many valuable customers. We take pride in delivering value through top quality, dependable work with excellent price and reliable, honest service.

"Kevin was great to work with. He was flexible with our schedule. The work was excellent and he stayed on top of the project all the way through the power company activating the service."

Wayne P on November 2019

Avatar for Generator Supercenter of New Hampshire

Generator Supercenter of New Hampshire

5.00(
10
)
•Approved Pro

Generator Supercenter of New Hampshire

5.00(
10
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
42 local quotes requested

At Generator Supercenter, we are committed to securing your home and peace of mind with back up power solutions. When bad weather hits or an electrical circuit malfunctions, a power outage is likely. When that happens, you can recover quickly if you own a reliable home backup generator. Once your generator is installed, you’ll need reliable technicians available 24/7 and capable of providing quick services. Generator Supercenter of New Hampshire provides experienced technicians for generator installation, repair, and maintenance. Benefits of working with our team: Full-service – Whether you need a new generator, or your current one is malfunctioning, we won’t leave until your generator is up and running as it should be. Convenience – If something goes wrong with your generator, you don’t have to worry about going out to buy a new one or to replace parts. We will come to your home or business and take care of it for you. Free on-site estimate – When you call us, you’re not committed to a service—our estimates are free, so you can meet with a member of our team to learn about your options with no strings attached! Unfortunately we do not do anything with portable generators or any brands not manufactured by Generac. We are also not a parts distributor.

"Matt Sanford and the team at Generator Supercenter were professional, knowledgeable and efficient when surveying my property. They spent quality time educating me on their generator product line and monitoring services. If you're looking for a superior product, company, and team to support you throughout our long New England winters, look no further!"

Chad F on March 2022

At Generator Supercenter, we are committed to securing your home and peace of mind with back up power solutions. When bad weather hits or an electrical circuit malfunctions, a power outage is likely. When that happens, you can recover quickly if you own a reliable home backup generator. Once your generator is installed, you’ll need reliable technicians available 24/7 and capable of providing quick services. Generator Supercenter of New Hampshire provides experienced technicians for generator installation, repair, and maintenance. Benefits of working with our team: Full-service – Whether you need a new generator, or your current one is malfunctioning, we won’t leave until your generator is up and running as it should be. Convenience – If something goes wrong with your generator, you don’t have to worry about going out to buy a new one or to replace parts. We will come to your home or business and take care of it for you. Free on-site estimate – When you call us, you’re not committed to a service—our estimates are free, so you can meet with a member of our team to learn about your options with no strings attached! Unfortunately we do not do anything with portable generators or any brands not manufactured by Generac. We are also not a parts distributor.

"Matt Sanford and the team at Generator Supercenter were professional, knowledgeable and efficient when surveying my property. They spent quality time educating me on their generator product line and monitoring services. If you're looking for a superior product, company, and team to support you throughout our long New England winters, look no further!"

Chad F on March 2022

Cam's Electrical Services

4.56(
16
)
•Approved Pro

Cam's Electrical Services

4.56(
16
)
•Approved Pro
Customers say: Quality work
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
14 years of experience

Cam's Electrical Services, has been providing quality work to homeowners in the Portland, ME area. We offer competitive prices, making sure our customers come first. We specialize in panel upgrades, new homes and additions electrical installations, bathroom remodels and more. We make sure our crew shows up on time, dependable and do the job right the first time. We know your time matters, so schedule an appointment and allow us to take care of the rest!

"Difficult to contact."

Lee T on January 2021

Cam's Electrical Services, has been providing quality work to homeowners in the Portland, ME area. We offer competitive prices, making sure our customers come first. We specialize in panel upgrades, new homes and additions electrical installations, bathroom remodels and more. We make sure our crew shows up on time, dependable and do the job right the first time. We know your time matters, so schedule an appointment and allow us to take care of the rest!

"Difficult to contact."

Lee T on January 2021

Avatar for Generator Supercenter of New Hampshire

Generator Supercenter of New Hampshire

4.93(
30
)
•Approved Pro

Generator Supercenter of New Hampshire

4.93(
30
)
•Approved Pro
Customers say: Quick response
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
83 local quotes requested

Generator Supercenter of New Hampshire 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. As a father and son-owned business, we’re committed to the best service. When you call us, our estimates are free, so you can meet with a member of our team to learn about your options with no strings attached!

"I want to thank the staff at the Stratham NH location. As a new customer, we got off to a bad start with a scheduling misunderstanding. After my earlier review, I want to acknowledge that they reached out to me to turn a negative experience into a positive one. It's nice to know that this company cares about their customers. I am very happy with the service they performed on my recent Generac generator. The customer service department and the technician were very professional and courteous. I would recommend this company for your generator needs."

Roger C on August 2024

Generator Supercenter of New Hampshire 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. As a father and son-owned business, we’re committed to the best service. When you call us, our estimates are free, so you can meet with a member of our team to learn about your options with no strings attached!

"I want to thank the staff at the Stratham NH location. As a new customer, we got off to a bad start with a scheduling misunderstanding. After my earlier review, I want to acknowledge that they reached out to me to turn a negative experience into a positive one. It's nice to know that this company cares about their customers. I am very happy with the service they performed on my recent Generac generator. The customer service department and the technician were very professional and courteous. I would recommend this company for your generator needs."

Roger C on August 2024

Avatar for Marsh River Electrical LLC

Marsh River Electrical LLC

4.96(
55
)
•Approved Pro

Marsh River Electrical LLC

4.96(
55
)
•Approved Pro
Super Service Award
Customers say: Quality work
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
31 local quotes requested

A Master Electrician with over 30 years experience with Industrial, Commercial, and Residential applications including installation, operation, and maintenance of electrical wiring systems and equipment. We do all work with maintenance and future expansion considerations as a priority. We use the National Electrical code as a minimum standard and usually exceed the code requirements with an installation that will provide years of safe and reliable operation with room to expand if necessary.

"Hank was generous with his time and expertise. Beyond the call of duty! Very helpful and professional."

Vaunie G on April 2025

A Master Electrician with over 30 years experience with Industrial, Commercial, and Residential applications including installation, operation, and maintenance of electrical wiring systems and equipment. We do all work with maintenance and future expansion considerations as a priority. We use the National Electrical code as a minimum standard and usually exceed the code requirements with an installation that will provide years of safe and reliable operation with room to expand if necessary.

"Hank was generous with his time and expertise. Beyond the call of duty! Very helpful and professional."

Vaunie G on April 2025

Avatar for Miracle Electric

Miracle Electric

5.00(
2
)
•Approved Pro

Miracle Electric

5.00(
2
)
•Approved Pro
68 local quotes requested
3 years of experience

Our focus is on families and existing homes. Call us and your home will be safer, brighter, and more comfortable. All jobs, big and small, from full home rewiring to fans and outlets, we’ve got you covered.

"They called immediately and were out within a week to do the work. They were very professional and had great communication. "

Lori Q on October 2025

Our focus is on families and existing homes. Call us and your home will be safer, brighter, and more comfortable. All jobs, big and small, from full home rewiring to fans and outlets, we’ve got you covered.

"They called immediately and were out within a week to do the work. They were very professional and had great communication. "

Lori Q on October 2025

Avatar for Callahan Electric

Callahan Electric

5.00(
5
)

Callahan Electric

5.00(
5
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

New construction/ Remodels Kitchen and Bathrooms Pools and Spas Heating and cooling systems Whole House and Portable Generators Service upgrades and Panels changes Solar and Battery Systems EV Car Chargers

"Jerry was very communicative and explained everything very clearly. He arrived on time, completed the work quickly, and was affordable. Overall we are very happy with his service!"

Abbygail Z on January 2025

New construction/ Remodels Kitchen and Bathrooms Pools and Spas Heating and cooling systems Whole House and Portable Generators Service upgrades and Panels changes Solar and Battery Systems EV Car Chargers

"Jerry was very communicative and explained everything very clearly. He arrived on time, completed the work quickly, and was affordable. Overall we are very happy with his service!"

Abbygail Z on January 2025

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Generator Install questions, answered by experts

As a safety measure, you should always turn off the main breaker while operating your generator’s backup breaker. In addition, you should also switch off all appliance breakers so you don't have a power surge when the main breaker turns back on. And finally, turning off the main breaker prevents back-feeding, which endangers utility workers with the risk of electrocution. Back-feeding could also destroy the electrical circuits of your neighbors if they use the same power network.

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 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.

When properly maintained, natural gas generators can last a long time, as much as 20 to 40 years. They have relatively few needs compared to generators with other fuel types. However, the generator’s lifespan ultimately depends on how often the generator is used and for how long it’s left running.

A 10,000-watt generator can run a small to mid-sized central AC unit (typically up to 3 tons or 36,000 BTU) along with a few other appliances. However, larger AC units or additional loads will require a bigger generator. Consult a local generator installer to ensure you add the correct size generator to your home.

The Portland, ME 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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