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Verified Reviews for Generator Install pros in Dennis Port, MA

*The Angi rating for Generator Install companies in Dennis Port, 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 Dennis Port, 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 25, 2025

Find Generator install pros in Dennis Port

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 MacFarlane Energy

MacFarlane Energy

4.62(
133
)

MacFarlane Energy

4.62(
133
)
Customers say: Super punctual
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers

Customer convenience is a top priority at MacFarlane Energy. We simplify our customers' lives by serving as a one-stop shop for heating, air conditioning and home comfort. In addition to delivering heating oil and maintaining the equipment in your home or business, we provide virtually every related service: indoor air quality, duct cleaning, conservation advice, home energy audits, replacing water heaters and oil tanks, installation of high-efficiency equipment, plus more. We also install radiant heat, snow-melt systems, pool heaters, solar hot water systems, and geothermal systems.

"Review for Thomas Coolberth on July 5, 2025. Had another leak on the master board of my OB 2000. Thomas installed half a board until the master board could be replaced. There is antifreeze in the water which has to be replaced. Thomas was very friendly, explaining the problem in layman’s terms and; quickly offered a temporary fix of the problem during July 4 th weekend. Highly recommend his service."

Carl G on July 2025

Customer convenience is a top priority at MacFarlane Energy. We simplify our customers' lives by serving as a one-stop shop for heating, air conditioning and home comfort. In addition to delivering heating oil and maintaining the equipment in your home or business, we provide virtually every related service: indoor air quality, duct cleaning, conservation advice, home energy audits, replacing water heaters and oil tanks, installation of high-efficiency equipment, plus more. We also install radiant heat, snow-melt systems, pool heaters, solar hot water systems, and geothermal systems.

"Review for Thomas Coolberth on July 5, 2025. Had another leak on the master board of my OB 2000. Thomas installed half a board until the master board could be replaced. There is antifreeze in the water which has to be replaced. Thomas was very friendly, explaining the problem in layman’s terms and; quickly offered a temporary fix of the problem during July 4 th weekend. Highly recommend his service."

Carl G on July 2025

J.B. Jones Electric

5.00(
8
)

J.B. Jones Electric

5.00(
8
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Young upstart company. 10 years of experience. Associates degree in electrical technology. Fully licensed and insured (MA license 12351-b)

"Great Brad was on time, knowledgeable and very nice to work with A+"

Bill G on February 2024

Young upstart company. 10 years of experience. Associates degree in electrical technology. Fully licensed and insured (MA license 12351-b)

"Great Brad was on time, knowledgeable and very nice to work with A+"

Bill G on February 2024

Avatar for Petro Home Services

Petro Home Services

4.12(
146
)

Petro Home Services

4.12(
146
)
Customers say: Super punctual
1903 years of experience

We're America’s #1 local home heating oil and total home comfort services provider (heating, cooling, plumbing, & chimney). With over 100 years experience, we know how to keep you comfortable, safe and help you save on energy costs. Our local 24/7 customer service and support means automatic heating oil deliveries and our service response is always fast. We never run out of heating oil plus our pricing and payment plans are designed to help you manage your costs all year round. Experience the Petro difference today!

"Our heater stopped functioning on Nov 27, 2023 and we called Petro who had done the maintenance on it before and replaced a motor two years ago. They were responsive and a technician came two days later. He worked for 3 hours without explaining what the problem was. Then said he needed to replace the motor. He fixed the problem and left without much explanation. Two days later a bill of $2500 came via email. No explanation, no break-down. I called 4 times over the last 20 days, spoke to 4 different reps and was promised that a supervisor will contact me with the bill details. Nothing happened. Irresponsible customer service and unprofessional behavior. They show all the symptoms of big, bureaucratic, and indifferent service company. I would not recommend Petro if you have options of more personalized services."

Nasser R on December 2023

We're America’s #1 local home heating oil and total home comfort services provider (heating, cooling, plumbing, & chimney). With over 100 years experience, we know how to keep you comfortable, safe and help you save on energy costs. Our local 24/7 customer service and support means automatic heating oil deliveries and our service response is always fast. We never run out of heating oil plus our pricing and payment plans are designed to help you manage your costs all year round. Experience the Petro difference today!

"Our heater stopped functioning on Nov 27, 2023 and we called Petro who had done the maintenance on it before and replaced a motor two years ago. They were responsive and a technician came two days later. He worked for 3 hours without explaining what the problem was. Then said he needed to replace the motor. He fixed the problem and left without much explanation. Two days later a bill of $2500 came via email. No explanation, no break-down. I called 4 times over the last 20 days, spoke to 4 different reps and was promised that a supervisor will contact me with the bill details. Nothing happened. Irresponsible customer service and unprofessional behavior. They show all the symptoms of big, bureaucratic, and indifferent service company. I would not recommend Petro if you have options of more personalized services."

Nasser R on December 2023

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Generator Install questions, answered by experts

Homeowners can often access federal tax credits, such as the Investment Tax Credit (ITC), which covers a percentage of installation costs. Many states and utilities offer additional rebates, grants, or performance-based incentives. These programs can significantly lower your upfront investment. Check the Database of State Incentives for Renewables and Efficiency (DSIRE) or contact your local energy office for current offers.

If you’re wondering whether gas generators produce carbon monoxide, know that natural gas generators do not produce carbon monoxide if they are functioning properly, as natural gas burns cleanly. However, if the generator malfunctions and the gas does not burn completely, there is potential for carbon dioxide to be produced. To prevent malfunctions, it's crucial to perform regular maintenance, including running the generator weekly and scheduling professional inspections every 6 to 12 months. Also, be sure to test your carbon monoxide detectors regularly to ensure they function in the rare case of the generator producing carbon monoxide.

Here’s what you can run with different wattages and types of generators:

Portable generator:

  • 2,000 watts can handle a large appliance like a freezer or refrigerator, plus a few smaller items like phones or computer chargers. 

  • 4,000 watts will keep two large appliances operating and a few smaller devices.

  • 8,000 watts should power most essential appliances and other devices, including a sump pump, well pump, or your dishwasher.

Partial to whole-house generator:

  • 20,000 watts and above will make it seem like your home’s power is still on.

Costs range from $500 to $2,500, depending on generator type and installation complexity.

It is safe to run a generator continuously, but you must follow safety protocols to ensure personal and home safety. Read the manufacturer’s instructions for specific recommendations, but the general recommendation is to turn generators off overnight or when you’re away from the house. Overworked generators can pose a fire hazard and if your generator is not in a well-ventilated area, running it continuously could lead to carbon monoxide poisoning.

The Dennis Port, 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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