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  • Average homeowner rating star icon4.9
    Average homeowner rating
  • Verified reviews icon12
    Verified generator installs reviews

Find Generator install pros in Medfield

Paul W Chace

4.96(
123
)
Approved Pro

Paul W Chace

4.96(
123
)
Approved Pro
Super Service Award
Customers say: True professional
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
53 years of experience

Livnik Investments, LLC is your number one electrical expert in Sudbury! Our passion and experience shine through on every job, big or small. We pride ourselves on attention to detail and building long-lasting business relationships with our clients. Call today for a free estimate!

"Paul was fantastic! He did an excellent job installing 4 ceiling fans for us. He kept me updated on what steps were needed in each location (e.g., removing existing track lighting, installing a fan box, extending the wiring, etc.) and worked efficiently. Paul was also kind enough to explain things to me, which I really appreciated. He has been in the field for a long time and is a wealth of knowledge. I will definitely reach out to Paul for future projects involving electrical!"

Chelsea F on August 2025

Livnik Investments, LLC is your number one electrical expert in Sudbury! Our passion and experience shine through on every job, big or small. We pride ourselves on attention to detail and building long-lasting business relationships with our clients. Call today for a free estimate!

"Paul was fantastic! He did an excellent job installing 4 ceiling fans for us. He kept me updated on what steps were needed in each location (e.g., removing existing track lighting, installing a fan box, extending the wiring, etc.) and worked efficiently. Paul was also kind enough to explain things to me, which I really appreciated. He has been in the field for a long time and is a wealth of knowledge. I will definitely reach out to Paul for future projects involving electrical!"

Chelsea F on August 2025


Avatar for Wired Electrical Contractors, Inc.

Wired Electrical Contractors, Inc.

4.91(
196
)
Approved Pro

Wired Electrical Contractors, Inc.

4.91(
196
)
Approved Pro
Customers say: Quality work
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
20 years of experience

At WIRED Electrical Contractors, we’re pursuing excellence: from your initial consultation to our superior warranties and follow-through. Owned and operated by master electrician Paul Crowley, our team of trained and certified master electricians provide MetroWest MA homeowners with quality craftsmanship, upfront pricing, and attentive responsiveness throughout every project phase. Our focus on quality has earned us the Angi Super Service Award for ten years running. We are a full service residential electrical contractor. We specialize in home EV charging installations and are Tesla trained and certified. We are also certified installers with Qmerit, Chargepoint, and ClipperCreek.

"Same day service! Electrician was very friendly and knowledgeable. Would recommend."

Sydney S on July 2024

At WIRED Electrical Contractors, we’re pursuing excellence: from your initial consultation to our superior warranties and follow-through. Owned and operated by master electrician Paul Crowley, our team of trained and certified master electricians provide MetroWest MA homeowners with quality craftsmanship, upfront pricing, and attentive responsiveness throughout every project phase. Our focus on quality has earned us the Angi Super Service Award for ten years running. We are a full service residential electrical contractor. We specialize in home EV charging installations and are Tesla trained and certified. We are also certified installers with Qmerit, Chargepoint, and ClipperCreek.

"Same day service! Electrician was very friendly and knowledgeable. Would recommend."

Sydney S on July 2024


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


Avatar for Joseph Jackson

Joseph Jackson

5.00(
54
)
Approved Pro

Joseph Jackson

5.00(
54
)
Approved Pro
Customers say: True professional
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
4 years of experience

With over three decades of experience, I am dedicated to delivering exceptional service in every aspect of my business. My unique distinction is in the quality of service I provide to my customers and my communications throughout the project. Above all, I prioritize the well-being and satisfaction of my customers.

"Extremely responsive, explained everything clearly and understandably, did the work in a timely fashion and left the work site spotless. Would use him again in a heartbeat. "

Asher T on November 2025

With over three decades of experience, I am dedicated to delivering exceptional service in every aspect of my business. My unique distinction is in the quality of service I provide to my customers and my communications throughout the project. Above all, I prioritize the well-being and satisfaction of my customers.

"Extremely responsive, explained everything clearly and understandably, did the work in a timely fashion and left the work site spotless. Would use him again in a heartbeat. "

Asher T on November 2025


"The team kept me well informed on the progress of the work until the job was completed. Very professional - I will definitely call VMA again in the future. Thank you!"

Nicole E on October 2025

Medium size Electrical Company based out of Metrowest Area. Currently have 9 licensed employees. Always free estimates. All pricing is based on specific work.

"The team kept me well informed on the progress of the work until the job was completed. Very professional - I will definitely call VMA again in the future. Thank you!"

Nicole E on October 2025


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 CL Electric Inc

CL Electric Inc

4.94(
25
)
Approved Pro

CL Electric Inc

4.94(
25
)
Approved Pro
Customers say: True professional
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
11 years of experience

Hi my name is Chris Lafferty, Owner of CL Electric Inc. I pride myself on reliability, great communication, integrity, and quality work. I strongly believe in giving my absolute best in all of the projects no matter how big or small. I am an expert in my trade and will always keep you educated on your particular task or project. I look forward to earning your business!

"CL Electric responded quickly and was great with communication throughout. Highly professional and did a great job with our 240 V outlet installation. Very fair pricing and a quick turnaround. Will use again if we have electrical work and highly recommend to anyone in the area."

Eric D on December 2024

Hi my name is Chris Lafferty, Owner of CL Electric Inc. I pride myself on reliability, great communication, integrity, and quality work. I strongly believe in giving my absolute best in all of the projects no matter how big or small. I am an expert in my trade and will always keep you educated on your particular task or project. I look forward to earning your business!

"CL Electric responded quickly and was great with communication throughout. Highly professional and did a great job with our 240 V outlet installation. Very fair pricing and a quick turnaround. Will use again if we have electrical work and highly recommend to anyone in the area."

Eric D on December 2024


Avatar for NETR Inc

NETR Inc

4.79(
76
)
Approved Pro

NETR Inc

4.79(
76
)
Approved Pro
Customers say: Super punctual
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

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Generator Install questions, answered by experts

A portable generator can supply power to selected appliances and circuits in a home, but it's generally not designed to handle the entire household's electrical needs simultaneously. Portable generators have limited wattage capacity, so they are only designed to power essential devices and electronics temporarily until local power is restored. If your power needs outweigh the capabilities of a portable generator, consider installing a whole-home generator instead.

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.

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. 

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.

To reduce AC startup power for a whole-house generator, install a soft start kit or hard start capacitor, which lowers the initial surge by gradually ramping up the compressor. Using a smart load manager can also help by staggering startup loads, preventing a system overload and future costly repairs.

The Medfield, MA homeowners’ guide to generator installs

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