Get matched with top generator installers in Holbrook, MA
There are 12 highly-rated local generator installers.
Verified Reviews for Generator Installation pros in Holbrook, MA
*The Angi rating for Generator Installation companies in Holbrook, MA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Generator Installation needs.
*The HomeAdvisor rating for Generator Installation companies in Holbrook, MA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Generator Installation needs.
Last update on May 21, 2025
Generator installers in Holbrook
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.
"The electrician, Mr. Jason Thompson, did an excellent job."
Armen S on April 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.
"The electrician, Mr. Jason Thompson, did an excellent job."
Armen S on April 2025
With over 25years of professional, licensed electrical experience, our team of certified electricians is prepared to handle a wide range of electrical needs with precision and care. From installing new lighting fixtures and outlets to performing intricate electrical panel upgrades, we ensure every job meets the highest safety and quality standards. We also offer troubleshooting and installation services for modern smart home technologies, helping you integrate cutting-edge solutions into your home or business seamlessly. Contact us today for a free estimate, we look forward to serving you!
"Excellent! So quick, efficient & polite! Would definitely recommend! 🙌🏻"
Kim W on March 2025
With over 25years of professional, licensed electrical experience, our team of certified electricians is prepared to handle a wide range of electrical needs with precision and care. From installing new lighting fixtures and outlets to performing intricate electrical panel upgrades, we ensure every job meets the highest safety and quality standards. We also offer troubleshooting and installation services for modern smart home technologies, helping you integrate cutting-edge solutions into your home or business seamlessly. Contact us today for a free estimate, we look forward to serving you!
"Excellent! So quick, efficient & polite! Would definitely recommend! 🙌🏻"
Kim W on March 2025
Hello from advanced electrical. We have been in business for 5 years and are evolving as one of top contractors in Quincy We take pride in the work we do and have very skilled workers to perform are day to day tasks. The technology advances every day and we advance with it. Thank you for choosing advanced electrical
"Unbelievable service. They arrived 20 minutes after I called with the monitors and installed four of them in 10 min. Very professional. I would hire them again!"
Elizabeth M on June 2018
Hello from advanced electrical. We have been in business for 5 years and are evolving as one of top contractors in Quincy We take pride in the work we do and have very skilled workers to perform are day to day tasks. The technology advances every day and we advance with it. Thank you for choosing advanced electrical
"Unbelievable service. They arrived 20 minutes after I called with the monitors and installed four of them in 10 min. Very professional. I would hire them again!"
Elizabeth M on June 2018
electrical installation, all job matters. - Electrical - Generator - Over 10 years experience -
electrical installation, all job matters. - Electrical - Generator - Over 10 years experience -
We are a full-service home generator provider offering turnkey residential installations, service contracts, and emergency response. Family owned and operated, we have sold, installed and serviced generators for over 40 years! Our history is working with commercial generators, so we know the importance of reliability! Reliability is our product which is why we sell Fortress, an exclusive Briggs and Stratton brand of home generators. We can even save you money on a smaller generator with the Symphony II Home Power Management System! FM Generator - Keeping Families Powered for over 40 years! **Fully installed automatic home power system packages starting at $7,500**
"Outstanding and hassle free from quote to completion. Their associates were on time and completed the installation in a shorter than expected time frame. Once they arrived at my home to start the process of adding the internal electrical panel and wiring, we felt very comfortable that each technician had facial masks and kept distance as a precaution. It was a great relief leaving the worry behind when their electrician completed the installation and tested the system. WOW, after they shut the power off,in the house, the generator kicked in after 35 seconds and powered all of our home. Each Saturday at Noon, the system automatically triggers the generator to start and perform a test and routine diagnosis of the unit and can add any needed updated from the cloud.. Originally, I had placed several calls to other local vendors and most did not even return my inquiry.. FM Generator promptly called me back to set up an appointment to discuss our energy needs for our home and sent me an estimate a few days later. Given this covid virus situation, I thought that I would never get a call back and a complete installation shortly there after. Julie, FM Generator's Installation Manager always returned my calls promptly and answered all my many questions. If you are seeking a quality vendor to purchase a generator and complete an install, please give FM Generator a cal 781-828-0026. I had many choices to select from but I had known of their local company and very glad I had. Very satisfied customer. Howard Koffman [email protected] 781-341-3531"
Howard K on July 2020
We are a full-service home generator provider offering turnkey residential installations, service contracts, and emergency response. Family owned and operated, we have sold, installed and serviced generators for over 40 years! Our history is working with commercial generators, so we know the importance of reliability! Reliability is our product which is why we sell Fortress, an exclusive Briggs and Stratton brand of home generators. We can even save you money on a smaller generator with the Symphony II Home Power Management System! FM Generator - Keeping Families Powered for over 40 years! **Fully installed automatic home power system packages starting at $7,500**
"Outstanding and hassle free from quote to completion. Their associates were on time and completed the installation in a shorter than expected time frame. Once they arrived at my home to start the process of adding the internal electrical panel and wiring, we felt very comfortable that each technician had facial masks and kept distance as a precaution. It was a great relief leaving the worry behind when their electrician completed the installation and tested the system. WOW, after they shut the power off,in the house, the generator kicked in after 35 seconds and powered all of our home. Each Saturday at Noon, the system automatically triggers the generator to start and perform a test and routine diagnosis of the unit and can add any needed updated from the cloud.. Originally, I had placed several calls to other local vendors and most did not even return my inquiry.. FM Generator promptly called me back to set up an appointment to discuss our energy needs for our home and sent me an estimate a few days later. Given this covid virus situation, I thought that I would never get a call back and a complete installation shortly there after. Julie, FM Generator's Installation Manager always returned my calls promptly and answered all my many questions. If you are seeking a quality vendor to purchase a generator and complete an install, please give FM Generator a cal 781-828-0026. I had many choices to select from but I had known of their local company and very glad I had. Very satisfied customer. Howard Koffman [email protected] 781-341-3531"
Howard K on July 2020
With 8+ years experience, 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!
"Jon is professional, knowlegable and reliable. He provided expert insight on design and functionality before installing electrical and lighting components on several complex home improvement projects. Will continue to rely on his expertise and quality of work in the future."
Steve C on March 2024
With 8+ years experience, 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!
"Jon is professional, knowlegable and reliable. He provided expert insight on design and functionality before installing electrical and lighting components on several complex home improvement projects. Will continue to rely on his expertise and quality of work in the future."
Steve C on March 2024
Henry Sy Electrician is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customer's interests, and make their concerns the basis of our business.
"Great value, great pricing. He was willing to come out and provide us with the estimate and did a wonderful job."
Smey S on March 2023
Henry Sy Electrician is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customer's interests, and make their concerns the basis of our business.
"Great value, great pricing. He was willing to come out and provide us with the estimate and did a wonderful job."
Smey S on March 2023
Wetterberg Electric is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.
Wetterberg Electric is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.
Leveraging our expertise and strong tech background, HTS aims to help you create an integrated, comprehensive IT plan and achieve digital transformation while meeting all your organizational goals. Our experts will show you how to implement the latest technologies to boost your productivity levels, revenue and business growth. With our IT consulting services, get ready to digitalize your business systems, optimize your software portfolio, and benefit from modern technologies. From careful planning to successful implementation of an effective IT strategy, we’ll make sure your digital transformation journey is seamless, profitable, and risk-free.
"Harris was outstanding in responding to my computer issues. He is patient, pleasant, a great communicator, and knows the computer business. This is an Exceptional company taking pride in the work that they do. You'll feel at ease with this tech team, so don't hesitate to give them a call, you surely won't regret,,,,,,,,and be sure to tell all of your friends"
Michele B on October 2024
Leveraging our expertise and strong tech background, HTS aims to help you create an integrated, comprehensive IT plan and achieve digital transformation while meeting all your organizational goals. Our experts will show you how to implement the latest technologies to boost your productivity levels, revenue and business growth. With our IT consulting services, get ready to digitalize your business systems, optimize your software portfolio, and benefit from modern technologies. From careful planning to successful implementation of an effective IT strategy, we’ll make sure your digital transformation journey is seamless, profitable, and risk-free.
"Harris was outstanding in responding to my computer issues. He is patient, pleasant, a great communicator, and knows the computer business. This is an Exceptional company taking pride in the work that they do. You'll feel at ease with this tech team, so don't hesitate to give them a call, you surely won't regret,,,,,,,,and be sure to tell all of your friends"
Michele B on October 2024
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.
Generator installations FAQs
Installing a whole-house generator costs about $5,000 on average. Prices range from $1,550 to $8,500, depending on size, brand, fuel type, and assembly. The size of your whole-house generator is the most significant cost factor, with large homes with high energy demands costing the most to power. Types of whole-home generators include:
Portable generators with 1kW–7.5kW capacity: $500–$2,000
Partial generators with 9kW–20kW capacity: $2,000–$6,300
Whole-house generators with 22kW–48kW: $5,000–$18,000
When maintained properly, a whole-house generator can last up to 20 years. Costs to maintain and repair generators vary by location and type of generator, but you can expect to pay about $150 to $300 per year for annual generator maintenance checks. An experienced generator service technician will inspect your generator’s engine filter, starting mechanism, fuel, lubrication, and coolant levels to keep your generator in good working condition for as long as possible.
When choosing the right size generator for your needs, consider a few items to help calculate the wattage you’ll need. Start by determining which household items and appliances you want to power, and then add the wattages together. Check out the wattage of these essential appliances:
Refrigerator: 600 watts
Large dehumidifier: 700 watts
Large window air conditioner: 1,400 watts
Water heater: 3,000 watts
Running home appliances like these requires a partial or whole-house generator. A portable generator may be enough to power your home if you only plan to keep a refrigerator and freezer running.
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.
The value of installing a whole-house generator is that your home has guaranteed power, even if the power grid in your area is down. Whether a whole-house generator is worth installing in your home depends on how often you use it, your home’s location, and your lifestyle. For example, installing a whole-house generator is likely worth it if you:
Experience frequent or prolonged power outages
Work from home
Store a lot of cold food
Have a sump pump
Have a pump for well water
Use electronic medical devices
Live in a climate requiring heating or cooling
Get our Angi-powered app
