Get matched with top generator installers in Sandwich, NH
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Verified Reviews for Generator Installation pros in Sandwich, NH
*The Angi rating for Generator Installation companies in Sandwich, NH 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 Sandwich, NH 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 June 13, 2025
Generator installers in Sandwich
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.
Power Moves Electric, LLC focuses on being top notch for all electrical projects no matter how big or small. You will find that we provide a variety of services with our expert services ranging from a simple panel swap to wiring a brand new home here at Power Moves Electric we pride ourselves on providing quality work and showing up when we say we are going to! Give us a call today at 603-481-0480 and let our work speak for itself thank you!
"On time and fair price"
Jeremy C on June 2023
Power Moves Electric, LLC focuses on being top notch for all electrical projects no matter how big or small. You will find that we provide a variety of services with our expert services ranging from a simple panel swap to wiring a brand new home here at Power Moves Electric we pride ourselves on providing quality work and showing up when we say we are going to! Give us a call today at 603-481-0480 and let our work speak for itself thank you!
"On time and fair price"
Jeremy C on June 2023
Welcome to Plymouth Mountain Electric! Proudly servicing Grafton and the surrounding counties. Owner and operator, Alex, takes great pride in his professionalism and customer satisfaction. For fast, reliable, and efficient service give us a call today! You won't be disappointed.
"Good job I would call them again"
Melissa H on April 2019
Welcome to Plymouth Mountain Electric! Proudly servicing Grafton and the surrounding counties. Owner and operator, Alex, takes great pride in his professionalism and customer satisfaction. For fast, reliable, and efficient service give us a call today! You won't be disappointed.
"Good job I would call them again"
Melissa H on April 2019
My business is local to the lakes region of New Hampshire, built from the ground up by me and my wife Taryn. We care about you and your overall experience with us , and with our competence and good work ethic it will show ! Please give me the opportunity to meet with you , and have a discussion about what want or need . The honest price estimate I give you will be free of charge and calls returned in a timely manner. Thank you for considering David F. Flynn Electrician for your electrical needs. Our reputation is based on service, safety, and quality, regardless of how large or small the job.
"david came in and dropped everything and put the whole outside lines and the meter box out the next day."
Roger R on February 2019
My business is local to the lakes region of New Hampshire, built from the ground up by me and my wife Taryn. We care about you and your overall experience with us , and with our competence and good work ethic it will show ! Please give me the opportunity to meet with you , and have a discussion about what want or need . The honest price estimate I give you will be free of charge and calls returned in a timely manner. Thank you for considering David F. Flynn Electrician for your electrical needs. Our reputation is based on service, safety, and quality, regardless of how large or small the job.
"david came in and dropped everything and put the whole outside lines and the meter box out the next day."
Roger R on February 2019
Wardtelephone offers an affordable alternative for interior phone service. We can diagnosis problems quickly and save you money. You are not required to use you phone service provider to do interior phone line repairs. This includes copper, fiber optic or wireless systems.
"He answered all my questions and performed the needed work in a timely manner.Will use him again."
George M on November 2015
Wardtelephone offers an affordable alternative for interior phone service. We can diagnosis problems quickly and save you money. You are not required to use you phone service provider to do interior phone line repairs. This includes copper, fiber optic or wireless systems.
"He answered all my questions and performed the needed work in a timely manner.Will use him again."
George M on November 2015
tba
"Very Punctual, and Skillful."
fred m on April 2021
tba
"Very Punctual, and Skillful."
fred m on April 2021
Were a locally owned and operated company with 20+ years of industry experience. We value honesty and integrity, and stand behind our work. We specialize in all aspects of electrical work. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building long-term relationships with our clients and guarantee your satisfaction! jandmelectrical.com
"Exceptional job ! Honest..reliable...efficient!"
Steven B on December 2020
Were a locally owned and operated company with 20+ years of industry experience. We value honesty and integrity, and stand behind our work. We specialize in all aspects of electrical work. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building long-term relationships with our clients and guarantee your satisfaction! jandmelectrical.com
"Exceptional job ! Honest..reliable...efficient!"
Steven B on December 2020
WB Lightning Rods is a third-generation lightning protection contractor. Family Owned and operated for over 60 years. installing U.L. Listed Lightning protection systems, All Over the East coast, Midwest south east and south west regions of the U.S. Installations on Residential Homes, Estate Properties, Agricultural and Equestrian Properties. Lightning Protection for trees is also available. No job to big or small References upon Request. Contact us today for a no cost or obligation estimate. We look forward to working with you on your Lightning Protection Project. Thank you. **WE ARE NOT ELECTRICIANS** **WE ONLY INSTALL LIGHTNING PROTECTION SYSTEMS **
"Great company, they were fast, friendly, & accommodating. I would definitely use them again."
Jennifer B on October 2024
WB Lightning Rods is a third-generation lightning protection contractor. Family Owned and operated for over 60 years. installing U.L. Listed Lightning protection systems, All Over the East coast, Midwest south east and south west regions of the U.S. Installations on Residential Homes, Estate Properties, Agricultural and Equestrian Properties. Lightning Protection for trees is also available. No job to big or small References upon Request. Contact us today for a no cost or obligation estimate. We look forward to working with you on your Lightning Protection Project. Thank you. **WE ARE NOT ELECTRICIANS** **WE ONLY INSTALL LIGHTNING PROTECTION SYSTEMS **
"Great company, they were fast, friendly, & accommodating. I would definitely use them again."
Jennifer B on October 2024
We at JLC Electric, LLC, focus on quality over quantity. We use our years of experience and expertise to complete your project with perfection. Customer service and honesty are the most important aspects of our business and your satisfaction is guaranteed. Please call us today for an estimate. We look forward to working with you.
"Jim was very good and responsive to my calendar. On time and got the job done in a few hours. Good quality with all cabling nicely hidden. Would hire again!"
Jay N on May 2025
We at JLC Electric, LLC, focus on quality over quantity. We use our years of experience and expertise to complete your project with perfection. Customer service and honesty are the most important aspects of our business and your satisfaction is guaranteed. Please call us today for an estimate. We look forward to working with you.
"Jim was very good and responsive to my calendar. On time and got the job done in a few hours. Good quality with all cabling nicely hidden. Would hire again!"
Jay N on May 2025
Granite State Solar has served the energy needs of Granite Staters for over 17 years. We specialize in generator installs and solar panel installs as well as a wide range of electrical projects that include electrical vehicle charging stations and panel upgrades. We take pride in our quality of work and our commitment to outstanding results. We are committed to providing a personalized service for each individual project we take on. We look forward to building strong, long-term relationships with our clients and guarantee your satisfaction with our industry-leading warranty on generators.
Granite State Solar has served the energy needs of Granite Staters for over 17 years. We specialize in generator installs and solar panel installs as well as a wide range of electrical projects that include electrical vehicle charging stations and panel upgrades. We take pride in our quality of work and our commitment to outstanding results. We are committed to providing a personalized service for each individual project we take on. We look forward to building strong, long-term relationships with our clients and guarantee your satisfaction with our industry-leading warranty on generators.
FAQs for generator installation projects in Sandwich, NH
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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