Top-rated generator install pros.

Get matched with top generator install pros in Groton, MA

There are 4 highly-rated local generator install pros.

Verified Reviews for Generator Install pros in Groton, MA

*The Angi rating for Generator Install companies in Groton, MA 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 Groton, MA 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 04, 2025

Find Generator install pros in Groton

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
245 local quotes requested

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 Moises Sarante

Moises Sarante

5.00(
4
)
•Approved Pro

Moises Sarante

5.00(
4
)
•Approved Pro
13 years of experience

We pride ourselves on being the best Electrical company in the area. We've built an excellent reputation for customer satisfaction by providing quick estimates, a great attention to detail, and competitive pricing. Being a screened and approved professional gives you the peace of mind you need to allow us to give your home the attention it deserves. Call us today and let's get started!

"Excellent service, very professional, responsible and reliable "

Grissel G on January 2025

We pride ourselves on being the best Electrical company in the area. We've built an excellent reputation for customer satisfaction by providing quick estimates, a great attention to detail, and competitive pricing. Being a screened and approved professional gives you the peace of mind you need to allow us to give your home the attention it deserves. Call us today and let's get started!

"Excellent service, very professional, responsible and reliable "

Grissel G on January 2025

Avatar for JBJ Systems, Inc.

JBJ Systems, Inc.

New on AngiNew on Angi
•Approved Pro

JBJ Systems, Inc.

New on AngiNew on Angi
•Approved Pro
4 years of experience

JBJ SYSTEMS provides innovative security systems, including video surveillance and access control, as well as advanced structured cabling and network solutions. Our expert technicians bring together experience and knowledge with trusted solutions, delivering results on time and on budget.

JBJ SYSTEMS provides innovative security systems, including video surveillance and access control, as well as advanced structured cabling and network solutions. Our expert technicians bring together experience and knowledge with trusted solutions, delivering results on time and on budget.

Stella Electric

4.51(
140
)
•Approved Pro

Stella Electric

4.51(
140
)
•Approved Pro
Customers say: Quality work
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
24 years of experience

Stella Electric, Installs, troubleshoots and repairs all types of electrical items in Residential, Commercial and Industrial locations. I am Peter Stella and I have been doing electrical work in all capacities, Apprentice, Journeyman, Master Electricain and as a Senior Electrical Engineer for General Electric, American Power Conversion, Bechtel and Russelectric. I have been independently in business since 2001, have licenses in MA, NH and CA. Stella Electric has recently rebooted our operation and is waiting for you to call us

"Excellent job, professional, courteous and got the job done fast. Could not ask for better service, would highly recommend.y recommend Stella Electric."

David D on August 2025

Stella Electric, Installs, troubleshoots and repairs all types of electrical items in Residential, Commercial and Industrial locations. I am Peter Stella and I have been doing electrical work in all capacities, Apprentice, Journeyman, Master Electricain and as a Senior Electrical Engineer for General Electric, American Power Conversion, Bechtel and Russelectric. I have been independently in business since 2001, have licenses in MA, NH and CA. Stella Electric has recently rebooted our operation and is waiting for you to call us

"Excellent job, professional, courteous and got the job done fast. Could not ask for better service, would highly recommend.y recommend Stella Electric."

David D on August 2025

Avatar for Champion Electrical Services Inc

Champion Electrical Services Inc

5.00(
24
)
•Approved Pro

Champion Electrical Services Inc

5.00(
24
)
•Approved Pro
Super Service Award
Customers say: Quick response
746 local quotes requested
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]

"Mike was very professional. Explained what and why things needed to be done. Was on time and cleaned up after his work in our living room. I would highly recommend him."

Lew R on November 2025

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]

"Mike was very professional. Explained what and why things needed to be done. Was on time and cleaned up after his work in our living room. I would highly recommend him."

Lew R on November 2025

Avatar for Advanced Energy Concepts of Worcester, Inc.

Advanced Energy Concepts of Worcester, Inc.

4.45(
123
)
•Approved Pro

Advanced Energy Concepts of Worcester, Inc.

4.45(
123
)
•Approved Pro
Customers say: Quality work
43 local quotes requested
35 years of experience

Advanced Energy Concepts was established in your community in 1990. Our main focus is energy conservation. Advanced Energy concepts also does a variety of plumbing services for your residential home

"Top notch vikki had her guys here asap to check my old a/c unit out when the tech said it was gone that Monday the appraiser came out 2 days after that had quote and a week after that install in 1 day . Guys where awesome new what they where doing had it done in no time... highly recommend for any a/c our heating issues awesome people..thank you advance especially vikki she was awesome. "

Leo B on July 2025

Advanced Energy Concepts was established in your community in 1990. Our main focus is energy conservation. Advanced Energy concepts also does a variety of plumbing services for your residential home

"Top notch vikki had her guys here asap to check my old a/c unit out when the tech said it was gone that Monday the appraiser came out 2 days after that had quote and a week after that install in 1 day . Guys where awesome new what they where doing had it done in no time... highly recommend for any a/c our heating issues awesome people..thank you advance especially vikki she was awesome. "

Leo B on July 2025

Avatar for EvanTechs

EvanTechs

5.00(
13
)
•Approved Pro

EvanTechs

5.00(
13
)
•Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
25 years of experience

For over 10 years, Evantechs has been providing voice and data services for residential and commercial customers. Our services include: design, expansion, and relocation services of existing telcom data and surveillance systems. Our experience enables us to design and install systems that are cost effective and optimized to your specific requirements. Our team of highly skilled technicians is professional, timely, and sensitive to the needs of the client. We don't simply install equipment, we provide solutions. Give us a call today! .

"He was very helpful, quick to understand what I needed. Was able to diagnose the issue, and what I was looking for was not practical. Made another recommendation that ended up being much better. He even made time for us on a Saturday, without giving us the runaround. I appreciate his service very much."

Paul L on November 2022

For over 10 years, Evantechs has been providing voice and data services for residential and commercial customers. Our services include: design, expansion, and relocation services of existing telcom data and surveillance systems. Our experience enables us to design and install systems that are cost effective and optimized to your specific requirements. Our team of highly skilled technicians is professional, timely, and sensitive to the needs of the client. We don't simply install equipment, we provide solutions. Give us a call today! .

"He was very helpful, quick to understand what I needed. Was able to diagnose the issue, and what I was looking for was not practical. Made another recommendation that ended up being much better. He even made time for us on a Saturday, without giving us the runaround. I appreciate his service very much."

Paul L on November 2022

Avatar for Wilson Brothers Heating & Air Conditioning Inc

Wilson Brothers Heating & Air Conditioning Inc

4.75(
142
)
•Approved Pro

Wilson Brothers Heating & Air Conditioning Inc

4.75(
142
)
•Approved Pro
Customers say: Super punctual
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
68 local quotes requested

Family owned and operated since 1987, Wilson Brothers HVAC, Inc. has been a leader in the installation and repair of complete, custom-designed, heating and cooling systems for homeowners in Massachusetts and New Hampshire. Hot air, radiant, and hydro-air heating systems fired by either gas or oil, along with complete central air or ductless cooling systems. Trust your home comfort to Wilson Brothers, Your All-Season Comfort Specialists. We also service additional areas through our sister companies, Accurate Baker Elman and Murphy's.

"Very knowledgeable and professional"

Stephen S on September 2024

Family owned and operated since 1987, Wilson Brothers HVAC, Inc. has been a leader in the installation and repair of complete, custom-designed, heating and cooling systems for homeowners in Massachusetts and New Hampshire. Hot air, radiant, and hydro-air heating systems fired by either gas or oil, along with complete central air or ductless cooling systems. Trust your home comfort to Wilson Brothers, Your All-Season Comfort Specialists. We also service additional areas through our sister companies, Accurate Baker Elman and Murphy's.

"Very knowledgeable and professional"

Stephen S on September 2024

Harland Electric Inc

4.92(
129
)
•Approved Pro

Harland Electric Inc

4.92(
129
)
•Approved Pro
Customers say: True professional
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
53 local quotes requested

Family owned & operated. Additional e-mail - [email protected]. Additional contact name - William R Harland Jr. Award winning. Certified Generac Servicing Dealers.

"Ryan and Tom arrived promptly, performed an exceptional job on replacing my undercounter lighting, as-well as repairing a ceiling fixture. Cleaned up everything thoroughly and made sure to demonstrate the new lighting settings so I was comfortable with them. Terrific job all-around and would highly recommend."

John F on January 2023

Family owned & operated. Additional e-mail - [email protected]. Additional contact name - William R Harland Jr. Award winning. Certified Generac Servicing Dealers.

"Ryan and Tom arrived promptly, performed an exceptional job on replacing my undercounter lighting, as-well as repairing a ceiling fixture. Cleaned up everything thoroughly and made sure to demonstrate the new lighting settings so I was comfortable with them. Terrific job all-around and would highly recommend."

John F on January 2023

Malvern Furusa Electrician LLC

4.43(
14
)
•Approved Pro

Malvern Furusa Electrician LLC

4.43(
14
)
•Approved Pro
Customers say: Quick response
90 local quotes requested
16 years of experience

Our mission is to be a provider that brings back the personal touch with our customers. We will build a relationship that will last a lifetime after you see our quality work. As a locally owned and operated business we feel invested in our clients and constantly strive for customer satisfaction. We won't leave until the job is done right! Call or click to schedule an estimate today!

"Project was completed quickly and works great. I'd consult them again on future projects. "

Mike O on November 2025

Our mission is to be a provider that brings back the personal touch with our customers. We will build a relationship that will last a lifetime after you see our quality work. As a locally owned and operated business we feel invested in our clients and constantly strive for customer satisfaction. We won't leave until the job is done right! Call or click to schedule an estimate today!

"Project was completed quickly and works great. I'd consult them again on future projects. "

Mike O on November 2025

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Generator Install questions, answered by experts

The cost to install a whole-house generator averages at $5,200, but costs can range from $1,500 to $8,900, depending on the type and size of the generator, and the labor required to install it. To find the best deal while still ensuring the unit meets all the needs of your household, hire an electrician to calculate the electrical load of your must-have appliances and electronics beforehand so you don’t pay for more power than you need. As always, be sure to get at least three quotes to find the ideal fit for your needs and budget.

To power a central air system during a power outage, the whole-house generator will need to be at least 5,000 watts, and this number will significantly increase for larger units. Check the specific wattage requirements of your AC unit to choose the right generator size. Consider consulting a generator installer to ensure your whole-house generator meets your electrical load needs.

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.

Costs depend on generator type, labor, and additional wiring or transfer switch requirements.

A whole house generator can be worth the extra money for peace of mind if your home is prone to power outages for extended periods of time or if you have life-saving medical equipment that needs to maintain power at all times. These devices can also increase your home’s value, especially in areas prone to extreme weather and power outages.

The Groton, MA homeowners’ guide to generator installs

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

See all articles