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    Verified generator installs reviews

Verified Reviews for Generator Install pros in Centerville, MA

*The Angi rating for Generator Install companies in Centerville, 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 Centerville, 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 November 26, 2025

Find Generator install pros in Centerville

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
Customers say: Super punctual
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
1948 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 Groundworks

Groundworks

3.72(
218
)
•Approved Pro

Groundworks

3.72(
218
)
•Approved Pro
Customers say: Super punctual
1984 years of experience
Free onsite estimate

Groundworks, previously Busy Dog Basement Technologies, specializes in helping homeowners with their waterproofing, foundation repair, crawl space, and remodeling needs. Our top priority is providing high-quality home repair solutions and personalized service across Massachusetts and Rhode Island. With fully trained technicians, industry-leading products, and nationally backed warranties, Groundworks is here to restore your foundation or basement. MA HIC 164895

"I had the annual maintenance on our Water Grabber system performed today by service technician Archie Boone. Archie as always great customer service, communication and professionalism. It is always a pleasure to see him. He has been servicing our system the past several years. I highly recommend Groundworks and Archie for their services."

Mike S on October 2025

Groundworks, previously Busy Dog Basement Technologies, specializes in helping homeowners with their waterproofing, foundation repair, crawl space, and remodeling needs. Our top priority is providing high-quality home repair solutions and personalized service across Massachusetts and Rhode Island. With fully trained technicians, industry-leading products, and nationally backed warranties, Groundworks is here to restore your foundation or basement. MA HIC 164895

"I had the annual maintenance on our Water Grabber system performed today by service technician Archie Boone. Archie as always great customer service, communication and professionalism. It is always a pleasure to see him. He has been servicing our system the past several years. I highly recommend Groundworks and Archie for their services."

Mike S on October 2025

Avatar for Steven Tullock Electrical Contractor

Steven Tullock Electrical Contractor

4.99(
74
)

Steven Tullock Electrical Contractor

4.99(
74
)
Customers say: True professional
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Welcome to Steve Tullock Electrical. We are a fully licensed and insured electrical company based in Harwich, Massachusetts. With over twenty years in the field, we specialize in a wide array of residential and light commercial electrical construction across all of Cape Cod. Don't be left without power! We are an authorized Briggs & Stratton home generator systems dealer, specializing in new installations as well as maintenance of existing systems. By having your generator cleaned and tested yearly, you can count on it to run smoothly when the power goes out.

"Absolutely fantastic! Would highly recommend! He came out to the house and surveyed the site, put together options and was back the following work week to complete the project. Prompt, excellent communication, fantastic work! Can’t recommend his services enough"

Charles B on August 2025

Welcome to Steve Tullock Electrical. We are a fully licensed and insured electrical company based in Harwich, Massachusetts. With over twenty years in the field, we specialize in a wide array of residential and light commercial electrical construction across all of Cape Cod. Don't be left without power! We are an authorized Briggs & Stratton home generator systems dealer, specializing in new installations as well as maintenance of existing systems. By having your generator cleaned and tested yearly, you can count on it to run smoothly when the power goes out.

"Absolutely fantastic! Would highly recommend! He came out to the house and surveyed the site, put together options and was back the following work week to complete the project. Prompt, excellent communication, fantastic work! Can’t recommend his services enough"

Charles B on August 2025

Avatar for Seaside Gas Service Inc

Seaside Gas Service Inc

4.98(
59
)

Seaside Gas Service Inc

4.98(
59
)
Customers say: Quick response
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers

**BARNSTABLE to BREWSTER area**: Natural gas heating, hot water, Generac Guardian generators. Air conditioning - central, and ductless mini-splits. And indoor air quality/humidity control. Installation, maintenance, service. When contacting us via Angie's, kindly include address, phone, email - as they do not appear automatically. THANK YOU.

"All of the staff at Seaside Gas are courteous and dependable. Each time we’ve used their services they contacted us right away and explained the work that needed to be done in a way that is understandable. This is one of the most dependable services we have ever used. Their work is high quality and we would recommend them to anyone we know that needs someone for their heating repairs!"

Deirdre A on April 2023

**BARNSTABLE to BREWSTER area**: Natural gas heating, hot water, Generac Guardian generators. Air conditioning - central, and ductless mini-splits. And indoor air quality/humidity control. Installation, maintenance, service. When contacting us via Angie's, kindly include address, phone, email - as they do not appear automatically. THANK YOU.

"All of the staff at Seaside Gas are courteous and dependable. Each time we’ve used their services they contacted us right away and explained the work that needed to be done in a way that is understandable. This is one of the most dependable services we have ever used. Their work is high quality and we would recommend them to anyone we know that needs someone for their heating repairs!"

Deirdre A on April 2023

Avatar for Paul Dunn Electrical Contractor

Paul Dunn Electrical Contractor

4.85(
60
)

Paul Dunn Electrical Contractor

4.85(
60
)
Customers say: Super punctual
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers

When it comes to electrical services, no one provides more prompt, courteous, and friendly service than the expert crew at Paul Dunn Electrical.

"Paul was knowledgeable and efficient. Took the time to explain how to run our generator after installing a switch on our electric box. Came back to try it out after we bought gasoline for it. He was most helpful and told us how best to maintain the generator as well. Will hire again."

Linda R on October 2022

When it comes to electrical services, no one provides more prompt, courteous, and friendly service than the expert crew at Paul Dunn Electrical.

"Paul was knowledgeable and efficient. Took the time to explain how to run our generator after installing a switch on our electric box. Came back to try it out after we bought gasoline for it. He was most helpful and told us how best to maintain the generator as well. Will hire again."

Linda R on October 2022

Avatar for Premier Generator by Paul Foley Electric

Premier Generator by Paul Foley Electric

4.95(
42
)

Premier Generator by Paul Foley Electric

4.95(
42
)
Customers say: Quick response
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers

All Premier Generator installations include a manufacturer backed 10-Year Warranty; this includes parts, labor and travel! Premier Generator was founded with the intent of serving the customer- first and foremost. This trend started with Paul Foley Electric, established in 1991. While generator installation and service are our primary direction, we are open to all electric tasks. With an unmatched eye for detail; Premier Generator treats every install as a custom project. The goal is always to be not only safe and code compliant, but also create a space that is aesthetically pleasing. No matter the degree of difficulty, nor time of year, Premier Generator is up to the task. Services Offered: Generator Installation; Electrical wiring for new, additions, & remodels; Panel upgrades, Electrical lighting, Fire protection systems (hardwire), AC Electrical, Pool Electrical, Hot Tubs Electrical, Switches, Outlets Please feel free to run your project by us! Not Offered: Home Theater wiring, Computer Wiring, Telephone Wiring, Electric baseboard or wall heaters, Thermostat, Surround Sound, Antennas, Satellite Dish, Security Systems, Pet fence, and Surveillance. To learn more, please visit our website: www.premiergenerator.com

"Premier Generator gave me a great experience with my whole house generator installation. Professional, punctual, friendly, and very meticulous, the team at Premier gets high marks from me. To top it all off, they had the best price by a substantial margin. I would highly recommend Premier Generator. Mark, Franklin, Ma"

Mark B on April 2021

All Premier Generator installations include a manufacturer backed 10-Year Warranty; this includes parts, labor and travel! Premier Generator was founded with the intent of serving the customer- first and foremost. This trend started with Paul Foley Electric, established in 1991. While generator installation and service are our primary direction, we are open to all electric tasks. With an unmatched eye for detail; Premier Generator treats every install as a custom project. The goal is always to be not only safe and code compliant, but also create a space that is aesthetically pleasing. No matter the degree of difficulty, nor time of year, Premier Generator is up to the task. Services Offered: Generator Installation; Electrical wiring for new, additions, & remodels; Panel upgrades, Electrical lighting, Fire protection systems (hardwire), AC Electrical, Pool Electrical, Hot Tubs Electrical, Switches, Outlets Please feel free to run your project by us! Not Offered: Home Theater wiring, Computer Wiring, Telephone Wiring, Electric baseboard or wall heaters, Thermostat, Surround Sound, Antennas, Satellite Dish, Security Systems, Pet fence, and Surveillance. To learn more, please visit our website: www.premiergenerator.com

"Premier Generator gave me a great experience with my whole house generator installation. Professional, punctual, friendly, and very meticulous, the team at Premier gets high marks from me. To top it all off, they had the best price by a substantial margin. I would highly recommend Premier Generator. Mark, Franklin, Ma"

Mark B on April 2021

Avatar for E.F. Winslow Plumbing & Heating

E.F. Winslow Plumbing & Heating

4.65(
127
)

E.F. Winslow Plumbing & Heating

4.65(
127
)
Customers say: Super punctual
1971 years of experience

Founded in 1971 by Freeman Winslow, E.F. Winslow began as a small plumbing company. Today, E.F. Winslow has proven itself as Cape Cod's most reliable service company for plumbing, heating, air conditioning, electrical, septic, oil delivery, central vacuum, remodeling and kitchen and bath design.

"Unresponsive and Unprofessional. Workers didn't show when they said they would. They did not finish the job, but told me they did. Left trash everywhere. They also installed an outdoors unit on my neighbor's property and want me to pay $7,500 to move it. This would have just been a simple fix, but they have been making it extremely difficult leaving me no choice but to file a complaint against their license and their bond."

Tonn C on February 2024

Founded in 1971 by Freeman Winslow, E.F. Winslow began as a small plumbing company. Today, E.F. Winslow has proven itself as Cape Cod's most reliable service company for plumbing, heating, air conditioning, electrical, septic, oil delivery, central vacuum, remodeling and kitchen and bath design.

"Unresponsive and Unprofessional. Workers didn't show when they said they would. They did not finish the job, but told me they did. Left trash everywhere. They also installed an outdoors unit on my neighbor's property and want me to pay $7,500 to move it. This would have just been a simple fix, but they have been making it extremely difficult leaving me no choice but to file a complaint against their license and their bond."

Tonn C on February 2024

A&L Heating, Cooling & Home Improvements

4.88(
48
)

A&L Heating, Cooling & Home Improvements

4.88(
48
)
Customers say: Quality work
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers

The premier sales and installation HVAC contractor. We believe in prompt, professional, high quality service and performance & extremely competitive pricing. Call us for a free estimate.

"Smooth process. On time, knowledgeable, professional, friendly. No mess at all. System works perfectly - cooling and heating. Best price. The company advised about generous rebates and took care of paper work. Highly recommend."

George C on June 2020

The premier sales and installation HVAC contractor. We believe in prompt, professional, high quality service and performance & extremely competitive pricing. Call us for a free estimate.

"Smooth process. On time, knowledgeable, professional, friendly. No mess at all. System works perfectly - cooling and heating. Best price. The company advised about generous rebates and took care of paper work. Highly recommend."

George C on June 2020

Avatar for Robies Heating and Cooling

Robies Heating and Cooling

4.84(
25
)

Robies Heating and Cooling

4.84(
25
)
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Robies is a full-service heating, air conditioning, and generator company serving Cape Cod. We repair and install gas furnaces, boilers, and radiant heat systems, as well as central cooling and ductless cooling systems. Robies also installs and services Generac automatic emergency stand-by generators. We are specialists in air quality and purification systems. All Robies technicians are factory-trained and NATE-certified. We serve both homes and businesses.

"We have had great experiences with Robies. Most recently, they replaced two ductless split AC units in our home. It was a big job and it involved both installation work and electrical work. Even though we called them in the heat of summer, when they are incredibly busy, they were relatively prompt in visiting our home to assess our needs. They were also prompt in in sending an estimate for the job and in scheduling the work. The installers and electricians who completed the work were terrific. Good people who were obviously skilled in their work. They arrived on time, did an excellent job in putting the units in place, handled the electrical issues without a glitch, and were very helpful in explaining everything to us. We greatly appreciated their professionalism and sterling service. And the price they charged was in line with others that we have received. An easy 5 stars."

H E on August 2024

Robies is a full-service heating, air conditioning, and generator company serving Cape Cod. We repair and install gas furnaces, boilers, and radiant heat systems, as well as central cooling and ductless cooling systems. Robies also installs and services Generac automatic emergency stand-by generators. We are specialists in air quality and purification systems. All Robies technicians are factory-trained and NATE-certified. We serve both homes and businesses.

"We have had great experiences with Robies. Most recently, they replaced two ductless split AC units in our home. It was a big job and it involved both installation work and electrical work. Even though we called them in the heat of summer, when they are incredibly busy, they were relatively prompt in visiting our home to assess our needs. They were also prompt in in sending an estimate for the job and in scheduling the work. The installers and electricians who completed the work were terrific. Good people who were obviously skilled in their work. They arrived on time, did an excellent job in putting the units in place, handled the electrical issues without a glitch, and were very helpful in explaining everything to us. We greatly appreciated their professionalism and sterling service. And the price they charged was in line with others that we have received. An easy 5 stars."

H E on August 2024

Avatar for All Phases Mechanical

All Phases Mechanical

4.63(
65
)

All Phases Mechanical

4.63(
65
)
Customers say: Quality work
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers

All Phases Mechanical has been providing and servicing heating and air conditioning to South Shore residents and businesses for over twenty five years. We service everything we sell (and those we don't sell) and all of our service technicians are seasoned veterans with training AND experience. ***** CONTACT US TODAY! 508-566-6777 *****

"They were very quick to review the site and see if the old unit could be salvaged. Once we determined to replace it and expend new zones, the work went as fast as possible. The crew was respectful and professional."

Chris N on November 2021

All Phases Mechanical has been providing and servicing heating and air conditioning to South Shore residents and businesses for over twenty five years. We service everything we sell (and those we don't sell) and all of our service technicians are seasoned veterans with training AND experience. ***** CONTACT US TODAY! 508-566-6777 *****

"They were very quick to review the site and see if the old unit could be salvaged. Once we determined to replace it and expend new zones, the work went as fast as possible. The crew was respectful and professional."

Chris N on November 2021

Showing 1-10 of 44
Generator Install questions, answered by experts

Setting up utilities on a vacant property usually takes at least a few months, or between 6 weeks to 16 weeks. This process requires working with the local planning and zoning department, hiring a building contractor or engineer to design the utility layout, securing permits, laying the lines, and connecting the utilities.

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 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.

Whole-house generators need to be installed on level ground several feet away from walls and other objects. Because they tap into the electrical system directly, they usually need to be close to your home electrical panel for a transfer switch installation. It also helps with installation if they are near to a gas line or propane tank installation.

You can determine what size generator you need by listing the various appliances it will power during an outage. Write down the start-up watt usage, and then add them all together. 

A 7,500-watt generator will run your refrigerator, freezer, well pump, and lighting circuits without a problem. However, you’ll need an extra 3,000 to 4,500 watts to run your water heater and another 5,000 to 25,000 watts to run your electric furnace. In these instances, a whole-home generator is your best bet for running your critical equipment.

The Centerville, 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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