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    Verified generator installs reviews

Find Generator install pros in Hanover

Avatar for T & G Electrical

T & G Electrical

4.94(
163
)
Approved Pro

T & G Electrical

4.94(
163
)
Approved Pro
Customers say: Super punctual
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
32 years of experience

• 2019 Super Service Award Winner - 7th Consecutive Year! • For Over 20 Years, We have been Proudly Serving clients in the Greater Boston Area! • We offer both Residential & Commercial Services • T & G Electrical is a Certified Master Licensed & Insured, Locally Owned & Family Operated Electrical Company • Our commitment to excellence has earned us an impeccable local reputation with clients which we will happily share with you through our references • If you have a project, call us! • We will work together to determine the scope of your project, your budget, and how we can work together to achieve your desired results within your scheduled time frame! • Our Professionalism, Accountability, & Open Client Communication will ensure we meet and exceed your expectations regardless of project size. We look forward to the opportunity to serve you • Call (617) 209-3895 to Schedule a FREE Estimate or Appointment Today!

"George and his team is very helpful. Their work was done fast and professionally. George gave me very seasonable price. I will hire them again if I need any electrical help."

Sherwin L on November 2024

• 2019 Super Service Award Winner - 7th Consecutive Year! • For Over 20 Years, We have been Proudly Serving clients in the Greater Boston Area! • We offer both Residential & Commercial Services • T & G Electrical is a Certified Master Licensed & Insured, Locally Owned & Family Operated Electrical Company • Our commitment to excellence has earned us an impeccable local reputation with clients which we will happily share with you through our references • If you have a project, call us! • We will work together to determine the scope of your project, your budget, and how we can work together to achieve your desired results within your scheduled time frame! • Our Professionalism, Accountability, & Open Client Communication will ensure we meet and exceed your expectations regardless of project size. We look forward to the opportunity to serve you • Call (617) 209-3895 to Schedule a FREE Estimate or Appointment Today!

"George and his team is very helpful. Their work was done fast and professionally. George gave me very seasonable price. I will hire them again if I need any electrical help."

Sherwin L on November 2024


Dever Electric

4.97(
51
)
Approved Pro

Dever Electric

4.97(
51
)
Approved Pro
Customers say: True professional
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
18 years of experience

We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We offer a variety of electrical services that are customizable to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships and guarantee your satisfaction!

"Fast and thorough"

Bradford H on April 2025

We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We offer a variety of electrical services that are customizable to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships and guarantee your satisfaction!

"Fast and thorough"

Bradford H on April 2025


Avatar for Cote Electric, LLC

Cote Electric, LLC

4.95(
43
)
Approved Pro

Cote Electric, LLC

4.95(
43
)
Approved Pro
Super Service Award
39 years of experience
Free onsite estimate

Cote Electric, LLC is a Manchester, New Hampshire-based electrical contractor specializing in residential, commercial, and industrial services. Established in 1987, the company has over 30 years of experience providing integrated electrical solutions throughout Northern New England.

"Emilio was quiet at first but I soon realized he was concentrating on diagnosing issues with my generator. He thoroughly went thru the system and then went about doing the repairs needed all the while being a personable and respectful person. Absolutely would recommend the company again"

Joseph A on October 2025

Cote Electric, LLC is a Manchester, New Hampshire-based electrical contractor specializing in residential, commercial, and industrial services. Established in 1987, the company has over 30 years of experience providing integrated electrical solutions throughout Northern New England.

"Emilio was quiet at first but I soon realized he was concentrating on diagnosing issues with my generator. He thoroughly went thru the system and then went about doing the repairs needed all the while being a personable and respectful person. Absolutely would recommend the company again"

Joseph A on October 2025


Avatar for NETR Inc

NETR Inc

4.79(
72
)
Approved Pro

NETR Inc

4.79(
72
)
Approved Pro
Customers say: Quality work
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
37 years of experience

For emergency services, please call 781-933-6387. N.E.T.R., Inc. is here to help homeowners install the best heating and cooling systems that fits their needs. Since 1989, we’ve installed heating and cooling systems in Boston and its surrounding areas, tackling tough problems that our clients face. Our goal is to ensure our clients have energy efficient, quiet, reliable systems so they can live their lives to the fullest both at home and at work. Our dedication to our customers’ needs is what drives us each and every day. Our approach to temperature control and comfort has helped us become one of the most respected names in heating, cooling, and refrigeration in New England

"Before installing a mini-split, the sales person told me that I'd need to cut down an interior shelf to a specific height. I paid a handyman $400 to do exactly what the sales person instructed. Later on, N.E.T.R. came and did the installation; however, AFTER the installation, a technician told me that they hadn't accounted for the vent opening and closing and that the shelf would need to be further cut down. As you can imagine, this type of service is rather ridiculous. If they knew that the shelf would need further cutting, they should have NOT installed the unit. I have called N.E.T.R. six (6) times in three weeks, and no one has called me back about this issue. After paying for the unit and for a handyman, it's ridiculous that I have AC that is compromised because no one with the company thought to properly measure the space so that the work by the handyman could be done once. At this point, I'd like for N.E.T.R. to take care of this for me."

Linda O on June 2025

For emergency services, please call 781-933-6387. N.E.T.R., Inc. is here to help homeowners install the best heating and cooling systems that fits their needs. Since 1989, we’ve installed heating and cooling systems in Boston and its surrounding areas, tackling tough problems that our clients face. Our goal is to ensure our clients have energy efficient, quiet, reliable systems so they can live their lives to the fullest both at home and at work. Our dedication to our customers’ needs is what drives us each and every day. Our approach to temperature control and comfort has helped us become one of the most respected names in heating, cooling, and refrigeration in New England

"Before installing a mini-split, the sales person told me that I'd need to cut down an interior shelf to a specific height. I paid a handyman $400 to do exactly what the sales person instructed. Later on, N.E.T.R. came and did the installation; however, AFTER the installation, a technician told me that they hadn't accounted for the vent opening and closing and that the shelf would need to be further cut down. As you can imagine, this type of service is rather ridiculous. If they knew that the shelf would need further cutting, they should have NOT installed the unit. I have called N.E.T.R. six (6) times in three weeks, and no one has called me back about this issue. After paying for the unit and for a handyman, it's ridiculous that I have AC that is compromised because no one with the company thought to properly measure the space so that the work by the handyman could be done once. At this point, I'd like for N.E.T.R. to take care of this for me."

Linda O on June 2025


Avatar for Paul Foley Electric Co., Inc.

Paul Foley Electric Co., Inc.

4.83(
75
)
Approved Pro

Paul Foley Electric Co., Inc.

4.83(
75
)
Approved Pro
Customers say: Quality work
34 years of experience
Free onsite estimate

Reliable Power. Exceptional Service. Total Peace of Mind. At Premier Energy Solutions, your comfort and safety come first. We take pride in protecting your home or business with turnkey, worry-free generator installations that deliver unmatched reliability and value. Every installation is handled with care by our team of licensed professionals using the best installation practices available today. From start to finish, we make the process seamless, professional, and built to last. Since 1992, Premier Energy Solutions has been a name homeowners and businesses trust. What started as a licensed electrical contracting company has grown into a full-service power solutions provider. We don’t just install generators — we provide a complete, turnkey experience that includes design, permitting, installation, testing, and long-term support. Our reputation is built on quality craftsmanship, attention to detail, and genuine care for our customers and their property.

"I have been looking for someone to come in and service my standby generator for quite some time. I finally decide to check with Angi's for recommendations. Premier Energy Solutions responded to my query within minutes of my posting. After discussing my system, they informed me that they had a technician who was currently in my area and could come in the same afternoon. Nate showed up early in the afternoon and was able to get my generator functioning within a few hours. He took the time to keep me informed during the process and we discussed my options for going forward with a maintenance schedule."

Bayla F on December 2025

Reliable Power. Exceptional Service. Total Peace of Mind. At Premier Energy Solutions, your comfort and safety come first. We take pride in protecting your home or business with turnkey, worry-free generator installations that deliver unmatched reliability and value. Every installation is handled with care by our team of licensed professionals using the best installation practices available today. From start to finish, we make the process seamless, professional, and built to last. Since 1992, Premier Energy Solutions has been a name homeowners and businesses trust. What started as a licensed electrical contracting company has grown into a full-service power solutions provider. We don’t just install generators — we provide a complete, turnkey experience that includes design, permitting, installation, testing, and long-term support. Our reputation is built on quality craftsmanship, attention to detail, and genuine care for our customers and their property.

"I have been looking for someone to come in and service my standby generator for quite some time. I finally decide to check with Angi's for recommendations. Premier Energy Solutions responded to my query within minutes of my posting. After discussing my system, they informed me that they had a technician who was currently in my area and could come in the same afternoon. Nate showed up early in the afternoon and was able to get my generator functioning within a few hours. He took the time to keep me informed during the process and we discussed my options for going forward with a maintenance schedule."

Bayla F on December 2025


Avatar for Champion Electrical Services Inc

Champion Electrical Services Inc

5.00(
26
)
Approved Pro

Champion Electrical Services Inc

5.00(
26
)
Approved Pro
Super Service Award
Customers say: Quick response
1 years of experience
Free onsite estimate

At Champion Electrical Services, we believe homeowners deserve better. No more no-shows, rushed work, or upsells you don't need. We built this company to do things right?with respect, craftsmanship, and pride. Every job gets treated like it's our own home: clean, code-compliant, and built to last. Whether you need a panel upgrade, EV charger, generator, or quick repair, we show up when it counts and earn your trust every time. Licensed, insured, and proudly serving MA & RI. When the lights go out, don't call just anyone? Call the Champ. ? (774) 331-3500 | ? CalltheChamp.com | ? [email protected]

"Dan King was the wonderful electrician who did our electrical project. He installed new -above and below -cabinet lighting in our kitchen - which included rewiring, etc. He was kind, competent, efficient and very hard working! Highly recommended!!!! The lighting effect is beautiful and we are very thrilled with the result! "

Gail T on January 2026

At Champion Electrical Services, we believe homeowners deserve better. No more no-shows, rushed work, or upsells you don't need. We built this company to do things right?with respect, craftsmanship, and pride. Every job gets treated like it's our own home: clean, code-compliant, and built to last. Whether you need a panel upgrade, EV charger, generator, or quick repair, we show up when it counts and earn your trust every time. Licensed, insured, and proudly serving MA & RI. When the lights go out, don't call just anyone? Call the Champ. ? (774) 331-3500 | ? CalltheChamp.com | ? [email protected]

"Dan King was the wonderful electrician who did our electrical project. He installed new -above and below -cabinet lighting in our kitchen - which included rewiring, etc. He was kind, competent, efficient and very hard working! Highly recommended!!!! The lighting effect is beautiful and we are very thrilled with the result! "

Gail T on January 2026


Avatar for Andrew Bronske

Andrew Bronske

4.94(
33
)
Approved Pro

Andrew Bronske

4.94(
33
)
Approved Pro
Customers say: Quick response
26 years of experience
Free onsite estimate

South Shore Power Solutions is committed to serving clients with a professional approach to all electrical and power needs. With 20 years experience in the electrical trade, we understand that it is crucial to stay informed and educated on the ever-changing technologies that are constantly being incorporated into various aspects of the electrical trade. With both residential and commercial projects under our belt, we provide a versatile resume to meet your electrical needs.

"Great communication, friendly, efficient. "

Mike M on December 2025

South Shore Power Solutions is committed to serving clients with a professional approach to all electrical and power needs. With 20 years experience in the electrical trade, we understand that it is crucial to stay informed and educated on the ever-changing technologies that are constantly being incorporated into various aspects of the electrical trade. With both residential and commercial projects under our belt, we provide a versatile resume to meet your electrical needs.

"Great communication, friendly, efficient. "

Mike M on December 2025


Avatar for Cotti-Johnson Heating-Cooling-Electrical

Cotti-Johnson Heating-Cooling-Electrical

4.68(
155
)
Approved Pro

Cotti-Johnson Heating-Cooling-Electrical

4.68(
155
)
Approved Pro
Super Service Award
Customers say: Super punctual
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
78 years of experience

Experiencing issues with your heating, air conditioning, plumbing, or electrical systems? Cotti-Johnson is your reliable one-stop shop for all home comfort needs. From simple fixes to large-scale projects, our professional team handles everything with honesty and expertise. We offer 24/7 emergency services and specialized design services for landscape and indoor lighting. Trust us for top-notch, efficient, and transparent service. Visit our website at callcotti.com or call us at (833) 826-8844 to see how we can improve your home's comfort and efficiency.

"Happy with the work, and the customer service. Will definitely call on them for future work."

Fran P on June 2025

Experiencing issues with your heating, air conditioning, plumbing, or electrical systems? Cotti-Johnson is your reliable one-stop shop for all home comfort needs. From simple fixes to large-scale projects, our professional team handles everything with honesty and expertise. We offer 24/7 emergency services and specialized design services for landscape and indoor lighting. Trust us for top-notch, efficient, and transparent service. Visit our website at callcotti.com or call us at (833) 826-8844 to see how we can improve your home's comfort and efficiency.

"Happy with the work, and the customer service. Will definitely call on them for future work."

Fran P on June 2025


Avatar for Michael Patterson Electric

Michael Patterson Electric

4.92(
43
)
Approved Pro

Michael Patterson Electric

4.92(
43
)
Approved Pro
Super Service Award
Customers say: True professional
4 years of experience
Free onsite estimate

MPE 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 are a leader in providing our customers with the highest quality products and craftsmanship in an honest, efficient, and professional way. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations. We look forward to working with you!

"Terrific customer service. A difficult job that Mike was able to find a solution and completed as promised. "

Matt S on January 2026

MPE 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 are a leader in providing our customers with the highest quality products and craftsmanship in an honest, efficient, and professional way. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations. We look forward to working with you!

"Terrific customer service. A difficult job that Mike was able to find a solution and completed as promised. "

Matt S on January 2026


Avatar for Zimbone Electrical Services

Zimbone Electrical Services

5.00(
16
)
Approved Pro

Zimbone Electrical Services

5.00(
16
)
Approved Pro
Customers say: Quality work
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
12 years of experience

We pride our company on reliability, great communication, integrity, and quality work. We strongly believe in giving our absolute best in all of our projects no matter how big or small. We are experts in our trade and will always keep you educated on your particular task or project. We look forward to earning your business!

"Did an Amazing job!"

Deb A on July 2025

We pride our company on reliability, great communication, integrity, and quality work. We strongly believe in giving our absolute best in all of our projects no matter how big or small. We are experts in our trade and will always keep you educated on your particular task or project. We look forward to earning your business!

"Did an Amazing job!"

Deb A on July 2025

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Generator Install questions, answered by experts

As long as your generator is used as recommended by the manufacturer, it’s safe to use for auxiliary power. Make sure that fuel powered generators are used outdoors and that the fumes dissipate away from your home. A professional generator installer will ensure your generator’s placement and set-up meets safety standards when installing or repairing your back-up power source.

Most homeowners won't be able to claim a home generator as a tax write-off. However, a whole-house generator may be tax-deductible in certain situations depending on its purpose. For instance, if it's needed to power essential medical equipment, it may qualify as a medical expense deduction. Also, in some cases, businesses can deduct a generator as a business expense if it supports operations. Always consult a tax professional to determine eligibility based on your specific circumstances and the applicable IRS regulations.

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.

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.

In many cases, you’ll need a permit or basic inspection to install one of these large generators. Since they include significant alterations to your home electrical system and many produce exhaust fumes, local governments often require jumping through a few hoops for general safety purposes. Your installer may be able to help you with these permits.

The Hanover, MA 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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