Get matched with top generator installers in Newton, NH
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28 Verified Reviews for Generator Installation pros in Newton, NH
*The Angi rating for Generator Installation companies in Newton, NH is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Generator Installation needs.
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Last update on April 11, 2025
Generator installers in Newton
Heritage Home Service is a premier home service provider operating in New Hampshire, Massachusetts and Maine – bringing all the perks that come with having a large team while maintaining a strong focus on family-oriented service.
"Ryan Boulanger was quite professional and comfortable to work with as he did the annual maintenance review of my Alpine burner. He explained the work he needed to do and what he did with knowledge and understanding and helped me to understand. Thanks for your work, Ryan."
David H on May 2023
Heritage Home Service is a premier home service provider operating in New Hampshire, Massachusetts and Maine – bringing all the perks that come with having a large team while maintaining a strong focus on family-oriented service.
"Ryan Boulanger was quite professional and comfortable to work with as he did the annual maintenance review of my Alpine burner. He explained the work he needed to do and what he did with knowledge and understanding and helped me to understand. Thanks for your work, Ryan."
David H on May 2023
We’re Your Local Plumbers, Heating and AC Technicians, and Electricians. Get prompt and professional plumbing, heating, air conditioning, and electrical services. Our quality staff of licensed and local plumbers and electricians have been providing local plumbing, heating, air conditioning, and electric services in the New Hampshire area since our beginnings in 1986. At our heart, Heritage is a family company with a longstanding reputation for providing quality service for a fair price. People tell us that they see our service trucks everywhere in the area, which is true since there’s a good chance that one of our technicians is also your neighbor. This makes it easy for us to be at your home promptly to help you solve your household plumbing, heating, AC, and electrical problems. It also makes it easy for us to do all that we can to maintain our reputation for quality service. One way we continue to improve the quality of our work is through regular training and certification for our great attendants who are behind the scenes making the magic happen. So whether you are struggling with a clogged drain or a noisy furnace, or you need an installation of an appliance, you’ll see the results of our devotion in the service you receive. If you’re experiencing a problem with your plumbing, heating, AC, or electricity at home, then you should give us a call and see what we mean by quality service that’s guaranteed. From clogged drains to AC installation to electrician’s work, we offer a variety of quality services and products at fair prices to NH residents and northern MA residents—guaranteed!
"Paul, our service technician, was timely, knowledgeable, and efficient. I can highly recommend Heritage Home service on this account. However I am extremely unhappy with the company's new service plan offered. I will explore other providers for this reason, and may not use Heritage Home Service in the future."
Craig V on November 2024
We’re Your Local Plumbers, Heating and AC Technicians, and Electricians. Get prompt and professional plumbing, heating, air conditioning, and electrical services. Our quality staff of licensed and local plumbers and electricians have been providing local plumbing, heating, air conditioning, and electric services in the New Hampshire area since our beginnings in 1986. At our heart, Heritage is a family company with a longstanding reputation for providing quality service for a fair price. People tell us that they see our service trucks everywhere in the area, which is true since there’s a good chance that one of our technicians is also your neighbor. This makes it easy for us to be at your home promptly to help you solve your household plumbing, heating, AC, and electrical problems. It also makes it easy for us to do all that we can to maintain our reputation for quality service. One way we continue to improve the quality of our work is through regular training and certification for our great attendants who are behind the scenes making the magic happen. So whether you are struggling with a clogged drain or a noisy furnace, or you need an installation of an appliance, you’ll see the results of our devotion in the service you receive. If you’re experiencing a problem with your plumbing, heating, AC, or electricity at home, then you should give us a call and see what we mean by quality service that’s guaranteed. From clogged drains to AC installation to electrician’s work, we offer a variety of quality services and products at fair prices to NH residents and northern MA residents—guaranteed!
"Paul, our service technician, was timely, knowledgeable, and efficient. I can highly recommend Heritage Home service on this account. However I am extremely unhappy with the company's new service plan offered. I will explore other providers for this reason, and may not use Heritage Home Service in the future."
Craig V on November 2024
At Generator Supercenter, we are committed to securing your home and peace of mind with back up power solutions. When bad weather hits or an electrical circuit malfunctions, a power outage is likely. When that happens, you can recover quickly if you own a reliable home backup generator. Once your generator is installed, you’ll need reliable technicians available 24/7 and capable of providing quick services. Generator Supercenter of New Hampshire provides experienced technicians for generator installation, repair, and maintenance. Benefits of working with our team: Full-service – Whether you need a new generator, or your current one is malfunctioning, we won’t leave until your generator is up and running as it should be. Convenience – If something goes wrong with your generator, you don’t have to worry about going out to buy a new one or to replace parts. We will come to your home or business and take care of it for you. Free on-site estimate – When you call us, you’re not committed to a service—our estimates are free, so you can meet with a member of our team to learn about your options with no strings attached! Unfortunately we do not do anything with portable generators or any brands not manufactured by Generac. We are also not a parts distributor.
"Matt Sanford and the team at Generator Supercenter were professional, knowledgeable and efficient when surveying my property. They spent quality time educating me on their generator product line and monitoring services. If you're looking for a superior product, company, and team to support you throughout our long New England winters, look no further!"
Chad F on March 2022
At Generator Supercenter, we are committed to securing your home and peace of mind with back up power solutions. When bad weather hits or an electrical circuit malfunctions, a power outage is likely. When that happens, you can recover quickly if you own a reliable home backup generator. Once your generator is installed, you’ll need reliable technicians available 24/7 and capable of providing quick services. Generator Supercenter of New Hampshire provides experienced technicians for generator installation, repair, and maintenance. Benefits of working with our team: Full-service – Whether you need a new generator, or your current one is malfunctioning, we won’t leave until your generator is up and running as it should be. Convenience – If something goes wrong with your generator, you don’t have to worry about going out to buy a new one or to replace parts. We will come to your home or business and take care of it for you. Free on-site estimate – When you call us, you’re not committed to a service—our estimates are free, so you can meet with a member of our team to learn about your options with no strings attached! Unfortunately we do not do anything with portable generators or any brands not manufactured by Generac. We are also not a parts distributor.
"Matt Sanford and the team at Generator Supercenter were professional, knowledgeable and efficient when surveying my property. They spent quality time educating me on their generator product line and monitoring services. If you're looking for a superior product, company, and team to support you throughout our long New England winters, look no further!"
Chad F on March 2022
Garneau Electric is a local family owned company that provides residential and commercial electrical services to the Southern, Nh area. We strive to satisfy all of our customers and try to go above and beyond to make sure you are completely satisfied. If you're looking for a company that provides top notch service, look no further than Garneau Electric and give us a call today!
"Responded quickly and completed work well and in a timely way"
Terri L on September 2024
Garneau Electric is a local family owned company that provides residential and commercial electrical services to the Southern, Nh area. We strive to satisfy all of our customers and try to go above and beyond to make sure you are completely satisfied. If you're looking for a company that provides top notch service, look no further than Garneau Electric and give us a call today!
"Responded quickly and completed work well and in a timely way"
Terri L on September 2024
Offering residential and commercial electrician services in and around New Hampshire.
"Professional service with exceptional care. The communication from start to finish was top notch. I will be hiring this team for all electrical needs for my home."
Liz L on April 2025
Offering residential and commercial electrician services in and around New Hampshire.
"Professional service with exceptional care. The communication from start to finish was top notch. I will be hiring this team for all electrical needs for my home."
Liz L on April 2025
I provide all of my customers with Prompt professional service. My 20 years of experience in the industry will be able to guide you in the right direction with any project
"We would recommend hiring Moses Electric to ANYBODY. Very respectful, knowledgeable, on time and friendly. Got the job done in timely fashion and was very neat We could not have asked for more."
Kim B on October 2024
I provide all of my customers with Prompt professional service. My 20 years of experience in the industry will be able to guide you in the right direction with any project
"We would recommend hiring Moses Electric to ANYBODY. Very respectful, knowledgeable, on time and friendly. Got the job done in timely fashion and was very neat We could not have asked for more."
Kim B on October 2024
Martin Robert Electric Service is a family owned, full-service, electrical systems installation & repair company. With over 30 years of experience in both the electrical and communications fields, we have the expertise to take on your next new construction, remodeling project, or emergency call. As an authorized Generac generator dealer, consult with us when considering emergency back-up power for your home or business facility. Include us as a member of your team of select contractors for updating your kitchen, attic, basement level ling space, or your entire home. We also perform wiring projects in support your ever increasing personal/business computing needs, ie., computer, phone, cable TV. Customer care is of the highest priority, we see satisfied customers as the "engine" driving our future success. Maintaining good communications with you is our guarantee. Recent customer submitted reviews can be accessed through the "Testimonials" page at our website. Martin Robert Electric Service looks forward to working with you and promises competitive pricing on your next project. NH Lic. #8409M, Maine Lic. # MS60018611
"Marty was kind, professional, and fair with pricing. We would definitely recommend using him!"
Juliet P on September 2024
Martin Robert Electric Service is a family owned, full-service, electrical systems installation & repair company. With over 30 years of experience in both the electrical and communications fields, we have the expertise to take on your next new construction, remodeling project, or emergency call. As an authorized Generac generator dealer, consult with us when considering emergency back-up power for your home or business facility. Include us as a member of your team of select contractors for updating your kitchen, attic, basement level ling space, or your entire home. We also perform wiring projects in support your ever increasing personal/business computing needs, ie., computer, phone, cable TV. Customer care is of the highest priority, we see satisfied customers as the "engine" driving our future success. Maintaining good communications with you is our guarantee. Recent customer submitted reviews can be accessed through the "Testimonials" page at our website. Martin Robert Electric Service looks forward to working with you and promises competitive pricing on your next project. NH Lic. #8409M, Maine Lic. # MS60018611
"Marty was kind, professional, and fair with pricing. We would definitely recommend using him!"
Juliet P on September 2024
Granite State Solar creates resilient energy systems for homes and businesses throughout New Hampshire. We meet your energy needs with custom generator, battery backup and solar panel installations.
Granite State Solar creates resilient energy systems for homes and businesses throughout New Hampshire. We meet your energy needs with custom generator, battery backup and solar panel installations.
We pride ourselves on the quality work we provide, while delivering great customer service. Check out our services offered and call or click to schedule an estimate today!
"Matt and all his team are top notch. I have Preferred Electrical perform work for both my business and home, they are trustworthy and provide a high quality service and final installation. All electrical wires and locations are clearly marked thoroughly and complete, with the utmost organization."
Earl D on May 2024
We pride ourselves on the quality work we provide, while delivering great customer service. Check out our services offered and call or click to schedule an estimate today!
"Matt and all his team are top notch. I have Preferred Electrical perform work for both my business and home, they are trustworthy and provide a high quality service and final installation. All electrical wires and locations are clearly marked thoroughly and complete, with the utmost organization."
Earl D on May 2024
New construction/ Remodels Kitchen and Bathrooms Pools and Spas Heating and cooling systems Whole House and Portable Generators Service upgrades and Panels changes Solar and Battery Systems EV Car Chargers
"Jerry was very communicative and explained everything very clearly. He arrived on time, completed the work quickly, and was affordable. Overall we are very happy with his service!"
Abbygail Z on January 2025
New construction/ Remodels Kitchen and Bathrooms Pools and Spas Heating and cooling systems Whole House and Portable Generators Service upgrades and Panels changes Solar and Battery Systems EV Car Chargers
"Jerry was very communicative and explained everything very clearly. He arrived on time, completed the work quickly, and was affordable. Overall we are very happy with his service!"
Abbygail Z on January 2025
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
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