Get matched with top generator install pros in Harvard, MA

Q: Can I install a portable generator myself?

• <div><p>DIY is possible for basic setups. Professional installation ensures safe and proper electrical connections.</p></div>

Q: How do I know what size generator I need?

• <div><p>When <a href="https://www.angi.com/articles/what-size-generator-do-i-need.htm">choosing the right size generator</a> for your needs, consider a few items to help calculate the wattage you&rsquo;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:</p><ul><li><p>Refrigerator: 600 watts</p></li><li><p>Large dehumidifier: 700 watts</p></li><li><p>Large window air conditioner: 1,400 watts</p></li><li><p>Water heater: 3,000 watts</p></li></ul><p>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. </p></div>

Q: Do I really need a generator transfer switch?

• <div><p>Yes, in some locations, it is required by the National Electric Code (NEC) to have a transfer switch installed for <a href="https://www.angi.com/articles/what-is-an-electrical-emergency.htm">electrical emergencies</a>. 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. </p></div>

Q: What types of fuel do generators take?

• <div><p>Generators run on a variety of fuel types, ranging from natural gas to solar power. Keep in mind that fuel costs varying by type:</p><ul><li><p>Natural gas: $2,000&ndash;$21,000 per year </p></li><li><p>Liquid propane: $2,000&ndash;$21,000 per year</p></li><li><p>Diesel: $3,000&ndash;$20,000 per year</p></li><li><p>Gasoline: $500&ndash;$3,000 per year</p></li><li><p>Solar generator: $2,000&ndash;$25,000 per unit</p></li><li><p>Battery backup: $10,000&ndash;$25,000 per unit</p></li></ul><p></p></div>

Q: Do you need a permit to install a whole-house generator?

• <div><p>In many cases, you&rsquo;ll need a permit or basic inspection to install one of these large generators. Since they include significant alterations to your home electrical system and many produce exhaust fumes, local governments often require jumping through a few hoops for general safety purposes. Your installer may be able to help you with these permits.</p></div>

There are 11 highly-rated local generator install pros.

Verified Reviews for Generator Install pros in Harvard, MA

*The Angi rating for Generator Install companies in Harvard, 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 Harvard, 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 October 25, 2025

Reviewed in December 2024
Tito had done an amazing job maintaining our rental properties. He takes care of everything from general lawn care to tree/bush trimming. He is extremely responsive, prompt and always completes work on time.
Tito's Landscaping
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Reviewed in August 2024
Aaron is dependable, kind, generous, and an expert tree climber which enables him to remove debris high in the trees without needing a Bucket truck. He is also very reasonable and fair.
Hazard Tree Removal
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Reviewed in November 2023
After interviewing various home contractors, we hired AK General Services to turn our dilapidated porch into a four season room and also extend it. We are very happy with the work that was performed. We were kept in constant communication about timeframes and next steps and requirements. The...
AK General Services
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Reviewed in April 2023
Christian and his crew are experts when it comes to tile, paver stones and masonry. Our patio was installed 20 years ago. There were stones that had buckled and risen out of their orginial places and the general slope of the patio when it was originally installed was not allowing for natural...
Dicapi Construction
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Reviewed in September 2022
The two young men who performed the installation were informative, professional, cordial, and they left the scene spotless. There was a technical problem with the engine on the generator itself, which they weren't able to help with, because they weren't licensed to work on the specific brand of...
T K Lyden Electric & Generator, Inc.
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Reviewed in October 2021
North Hill Development has done a great job of installing our resistance pool and creating a spa house/structure to go over it. This project required North Hill to coordinate with our spa vendor for a crane delivery, our town's conservation committee for clearance, and our architect for some...
North Hill Development Inc
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Reviewed in February 2018
Overall we are satisfied with the end results. Our cabinet installer sub contracted with this company last minute in an effort to get our kitchen done on schedule, and so that we could actually go see the granite before it was installed. The initial installers were prompt, and pleasant, but when...
CONTINENTAL STONE MARBLE GRANITE
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Reviewed in December 2014
Mr Frankselio Dasilva, the owner of Vallcher Construction, is very knowledgeable, and very professional. He is highly recommended for most any general contractor project.
Promax Builder Inc
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Reviewed in November 2014
Jean was very punctual and extremely professional. He evaluated the integrity of the tile flooring on his hands and knees, checking for loosening grout, cracked tiles, general safety issues. He found the flooring installation was not secure and some tiles were already cracked. Jean was very...
Century Carpet & Creative Floors Inc
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Reviewed in February 2013
Electricians arrived in very cold weaqther and upgraded ouytside service, which included moving meter from inside to exterior as required. ran into a problem and had National Grid come and replace main service line into home. no extra charge. Then they removed three old fuse based boxes and...
Dennis Capurso Electric
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