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Find Generator install pros in East Dennis

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
956 local quotes requested

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 NAX Electrical Services, LLC

NAX Electrical Services, LLC

4.36(
7
)
Approved Pro

NAX Electrical Services, LLC

4.36(
7
)
Approved Pro
Customers say: Quick response
3 years of experience
Emergency services offered

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! Book with us online or feel free to give us a call today! 508-296-0552

"Great job done"

William B on August 2022

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! Book with us online or feel free to give us a call today! 508-296-0552

"Great job done"

William B on August 2022


Avatar for East West Associates, LLC

East West Associates, LLC

5.00(
3
)
Approved Pro

East West Associates, LLC

5.00(
3
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
10 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.

"A very nice young professional who knows his stuff and puts your mind at ease when dealing with sophisticated electronics. I highly recommend him for Seniors who just can t manage all this technology. Also,very polite!"

David W on June 2020

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.

"A very nice young professional who knows his stuff and puts your mind at ease when dealing with sophisticated electronics. I highly recommend him for Seniors who just can t manage all this technology. Also,very polite!"

David W on June 2020


Avatar for Digital City Technology, Inc.

Digital City Technology, Inc.

5.00(
5
)
Approved Pro

Digital City Technology, Inc.

5.00(
5
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
13 years of experience

Digital City Technology, Inc. (Digital City) is based in Ashland, MA, supporting greater Boston and New England since 2008. We are a Telecommunications, Network, Low Voltage and Fiber Optic professional service provider. Digital City installs VOIP Phone systems, LAN/WAN, IP Surveillance and Audio/Visual Systems. We specialize in Phone/Internet cutovers, Data Center installations, Network and System design, CAT 5 & 6 and Fiber Optic cabling, Structured Cabling and Wireless Internet implementation. Digital City has participated in Technology Roll-outs for Fortune 500 companies and performed Technology, Network and Wi-Fi deployments, VOIP installs etc. Our main goal is to provide cost-justifiable, top quality IT services designed to meet business, customer and user demands.

"Low voltage work was clean and labeled!"

Shane H on February 2020

Digital City Technology, Inc. (Digital City) is based in Ashland, MA, supporting greater Boston and New England since 2008. We are a Telecommunications, Network, Low Voltage and Fiber Optic professional service provider. Digital City installs VOIP Phone systems, LAN/WAN, IP Surveillance and Audio/Visual Systems. We specialize in Phone/Internet cutovers, Data Center installations, Network and System design, CAT 5 & 6 and Fiber Optic cabling, Structured Cabling and Wireless Internet implementation. Digital City has participated in Technology Roll-outs for Fortune 500 companies and performed Technology, Network and Wi-Fi deployments, VOIP installs etc. Our main goal is to provide cost-justifiable, top quality IT services designed to meet business, customer and user demands.

"Low voltage work was clean and labeled!"

Shane H on February 2020


Robert Greer

4.93(
21
)
Approved Pro

Robert Greer

4.93(
21
)
Approved Pro
Customers say: Quick response
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
40 local quotes requested

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!

"Great job New panel New wiring in workshop"

Bill G on May 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!

"Great job New panel New wiring in workshop"

Bill G on May 2025


Springer Electric, Inc.

5.00(
3
)
Approved Pro

Springer Electric, Inc.

5.00(
3
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
16 years of experience

We have over 15 years of experience serving Barnstable county with all of their electrical needs. We take on a wide range of electrical projects to include full installation for additions and remodels as well as generator installs, service change-outs and panel upgrades, and a variety of other jobs. We take pride in our quality of work and our commitment to outstanding results. Our services are customizable based on the specific project needs of each homeowner and business. We look forward to building strong, long-term relationships with all of our clients. Give us a call today to learn about how we can meet all of your electrical needs!

"Springer Electric team ( Dave, Nick, Zack) worked at my home doing full upgrade of all electrical on my basement. Additionally added outlets, fixed light fixtures and added over 7 smoke carbon alarms. They did a superior job! They show up on time and on schedule. They are all professional, respectful, efficient, knowledgeable and very experienced. They cover the floors and do a thorough cleanup too. I have had them do work on my home over the last 15 years. Nancy"

Nancy C on September 2024

We have over 15 years of experience serving Barnstable county with all of their electrical needs. We take on a wide range of electrical projects to include full installation for additions and remodels as well as generator installs, service change-outs and panel upgrades, and a variety of other jobs. We take pride in our quality of work and our commitment to outstanding results. Our services are customizable based on the specific project needs of each homeowner and business. We look forward to building strong, long-term relationships with all of our clients. Give us a call today to learn about how we can meet all of your electrical needs!

"Springer Electric team ( Dave, Nick, Zack) worked at my home doing full upgrade of all electrical on my basement. Additionally added outlets, fixed light fixtures and added over 7 smoke carbon alarms. They did a superior job! They show up on time and on schedule. They are all professional, respectful, efficient, knowledgeable and very experienced. They cover the floors and do a thorough cleanup too. I have had them do work on my home over the last 15 years. Nancy"

Nancy C on September 2024


Avatar for Paul Foley Electric Co., Inc.

Paul Foley Electric Co., Inc.

4.83(
74
)
Approved Pro

Paul Foley Electric Co., Inc.

4.83(
74
)
Approved Pro
Customers say: Quality work
135 local quotes requested
33 years of experience

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.

"Job was completed satisfactorily"

David F on March 2023

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.

"Job was completed satisfactorily"

David F on March 2023


Avatar for Mr Cape Electrician

Mr Cape Electrician

4.63(
8
)
Approved Pro

Mr Cape Electrician

4.63(
8
)
Approved Pro
Customers say: Quick response
58 local quotes requested
5 years of experience

Mr Cape Electrician: Your Trusted Electrical Expert For years, Mr Cape Electrician has been the leading electrical service provider in the region, offering a unique blend of comprehensive expertise, cutting-edge solutions, and a commitment to quality. As a family-owned business, we've built a reputation on precision, reliability, and putting the customer first. Whether you're exploring the benefits of smart home systems, need a quick outlet replacement, or embarking on a major commercial rewiring project, our team has the skill and dedication to light up your world. Our portfolio boasts a wide range of services, including residential wiring, advanced smart home solutions, electric car charger setups, and commercial electrical solutions. Each member of our crew is trained to be detail-oriented, ensuring every project meets the highest safety and quality standards. And while our expertise stands out, it's our approach to customer service that truly sets us apart. We believe in transparent flat-rate prices, always ensuring our customers know what to expect. We understand the changing dynamics of the electrical world and pride ourselves on staying ahead of the curve. Our commitment doesn't end when the job is done – with our yearly subscription service plans, we offer a lifetime warranty on labor, ensuring you have peace of mind for years to come. Choose Mr Cape Electrician for a brighter, safer, and smarter tomorrow. Reach out today and experience the difference!

"The crew left without finishing the project which admittedly was a large scope of complicated mess left by the previous contractor who had drinking problems, but they knew that coming in. The main thing I asked the folks to do was to make sure heating works, that was priority #1, this is what they left in October when disappeared: - Heating main room, the first floor, only one radiator out of 3 working. - Heating second floor living room - none of the radiators were working, - They spend time running new wire to the first floor radiators because they thought the old wire was nicked, apparently nothing was nicked and the new wire wasn't needed at all as well as three 6" holes that they left in ceilings and walls , one of the original wires were just mis-labled that was the reason why heat didn't work - but instead of double checking they went for brute force - lets rewire the thing and didn't even finish that correctly. - Left one room completely without power to the outlets, to add more to that the switch in that same room was wired, but the wire wasn't screwed in at all, it was just taped to the terminal using electrical tape!!! It was shorting when I was moving it around! This is after the crew of 4 people spend 2 days checking all outlets and switches for code compliance. And then there is a ton of small stuff: - 3 way switch weren't wired correctly - closet light not wired Did I try contacting them? Oh yes, - Left 4 emails, 2 voicemails over the course of 6-7 weeks. What did I get back? One email that someone will contact me shortly... of course no-one did contact me shortly not after 1 day, 3 days, 3 weeks. Why am I leaving 2 starts and not one star ? Because the crew did do a lot and a lot of things they did were fine, like they installed CO2/Smokedetectros throughout the house, installed thermostats everywhere, so for small projects they may be great, but nothing that requires time or patience to figure out more complex electrical problems as I guess there is no money to be made in solving complex problems."

Anatoliy I on December 2022

Mr Cape Electrician: Your Trusted Electrical Expert For years, Mr Cape Electrician has been the leading electrical service provider in the region, offering a unique blend of comprehensive expertise, cutting-edge solutions, and a commitment to quality. As a family-owned business, we've built a reputation on precision, reliability, and putting the customer first. Whether you're exploring the benefits of smart home systems, need a quick outlet replacement, or embarking on a major commercial rewiring project, our team has the skill and dedication to light up your world. Our portfolio boasts a wide range of services, including residential wiring, advanced smart home solutions, electric car charger setups, and commercial electrical solutions. Each member of our crew is trained to be detail-oriented, ensuring every project meets the highest safety and quality standards. And while our expertise stands out, it's our approach to customer service that truly sets us apart. We believe in transparent flat-rate prices, always ensuring our customers know what to expect. We understand the changing dynamics of the electrical world and pride ourselves on staying ahead of the curve. Our commitment doesn't end when the job is done – with our yearly subscription service plans, we offer a lifetime warranty on labor, ensuring you have peace of mind for years to come. Choose Mr Cape Electrician for a brighter, safer, and smarter tomorrow. Reach out today and experience the difference!

"The crew left without finishing the project which admittedly was a large scope of complicated mess left by the previous contractor who had drinking problems, but they knew that coming in. The main thing I asked the folks to do was to make sure heating works, that was priority #1, this is what they left in October when disappeared: - Heating main room, the first floor, only one radiator out of 3 working. - Heating second floor living room - none of the radiators were working, - They spend time running new wire to the first floor radiators because they thought the old wire was nicked, apparently nothing was nicked and the new wire wasn't needed at all as well as three 6" holes that they left in ceilings and walls , one of the original wires were just mis-labled that was the reason why heat didn't work - but instead of double checking they went for brute force - lets rewire the thing and didn't even finish that correctly. - Left one room completely without power to the outlets, to add more to that the switch in that same room was wired, but the wire wasn't screwed in at all, it was just taped to the terminal using electrical tape!!! It was shorting when I was moving it around! This is after the crew of 4 people spend 2 days checking all outlets and switches for code compliance. And then there is a ton of small stuff: - 3 way switch weren't wired correctly - closet light not wired Did I try contacting them? Oh yes, - Left 4 emails, 2 voicemails over the course of 6-7 weeks. What did I get back? One email that someone will contact me shortly... of course no-one did contact me shortly not after 1 day, 3 days, 3 weeks. Why am I leaving 2 starts and not one star ? Because the crew did do a lot and a lot of things they did were fine, like they installed CO2/Smokedetectros throughout the house, installed thermostats everywhere, so for small projects they may be great, but nothing that requires time or patience to figure out more complex electrical problems as I guess there is no money to be made in solving complex problems."

Anatoliy I on December 2022


Avatar for Champion Electrical Services Inc

Champion Electrical Services Inc

5.00(
23
)
Approved Pro

Champion Electrical Services Inc

5.00(
23
)
Approved Pro
Customers say: Quick response
792 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]

"The office reached out to me quickly as soon as I placed my service request for an electrician through Angi app. The lady was so nice to give me an appointment the following day. I needed a licensed electrician to certify my lighting fixtures before upgrading my attic insulation. Mike came with courteous smile😊"

Mila G 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]

"The office reached out to me quickly as soon as I placed my service request for an electrician through Angi app. The lady was so nice to give me an appointment the following day. I needed a licensed electrician to certify my lighting fixtures before upgrading my attic insulation. Mike came with courteous smile😊"

Mila G on November 2025


Avatar for Marcelo R. Soares Electrician

Marcelo R. Soares Electrician

5.00(
8
)
Approved Pro

Marcelo R. Soares Electrician

5.00(
8
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
35 local quotes requested

I offer a variety of electrical services. We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality of work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule an estimate today!

"Marcelo was fantastic. Responsive, knowledgeable, very friendly and punctual. He diagnosed the problem right away, fixed it on the spot with minimal cost. I would highly recommend him for any job!!"

Donald T on June 2025

I offer a variety of electrical services. We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality of work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule an estimate today!

"Marcelo was fantastic. Responsive, knowledgeable, very friendly and punctual. He diagnosed the problem right away, fixed it on the spot with minimal cost. I would highly recommend him for any job!!"

Donald T on June 2025

Showing 1-10 of 47
Generator Install questions, answered by experts

Yes, whole-house generators run constantly for extended periods. Whole-house generators can run for longer periods of time than portable generators, but be careful. First, they may need regular applications of engine oil (as frequently as daily), depending on the engine design. Second, running constantly for several days will increase the wear and tear on the generator and shorten its lifespan.

Generally, you’ll want to keep between 60 and 70 feet between the generator and the transfer switch. There are a few reasons for this, including:

  • The distance reduces the noise coming from the generator into your home.

  • It increases efficiency because you won’t have a voltage drop from this short of a distance.

  • Prevents carbon monoxide poisoning: keep at least 15 feet between your generator and an open window. 

Generators are usually sized by running watts and starting watts. Ideally, you’ll want a generator that can offer both the necessary running watts and starting watts for everything you need to power without going beyond 90% of its capacity. Calculate your home’s electrical load based on the breakers in your home or adding up the appliance and lighting needs of connected rooms.

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.

Yes, in some locations, it is required by the National Electric Code (NEC) to have a transfer switch installed for electrical emergencies. In addition to following electrical code, generator transfer switches ensure your home is fully protected during a power outage. By switching the power from the main breaker to the generator breaker, you can seamlessly operate your HVAC, lights, appliances, devices, and more during an emergency. 

The East Dennis, 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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