Get matched with top generator install pros in Somerville, MA

Q: Is it better to repair or replace a malfunctioning generator?

• <div><p>It&rsquo;s usually better to repair your generator if it isn&rsquo;t working properly, as it will typically be much more affordable and should yield similar results. Generator repairs cost around <b>$300</b> on average, while <a href="https://www.angi.com/articles/how-much-does-it-cost-install-generator.htm">installing a new whole-house generator costs</a> around <b>$5,000 </b>on average. The only exception is if you know your generator is reaching the end of its useful life, usually between 30 and 40 years. If you have an older generator, you could face multiple repairs in the coming years, which might mean that a full replacement will be more cost-effective over time.</p></div>

Q: What size generator does my house need?

• <div><p>You can determine what size generator you need by listing the various appliances it will power during an outage. Write down the start-up watt usage, and then add them all together. </p><p>A 7,500-watt generator will run your refrigerator, freezer, well pump, and lighting circuits without a problem. However, you&rsquo;ll need an extra 3,000 to 4,500 watts to run your water heater and another 5,000 to 25,000 watts to run your electric furnace. In these instances, a whole-home generator is your best bet for running your critical equipment.</p></div>

Q: How does a generator transfer switch save me money?

• <div><p>It might seem counterintuitive, but installing a generator transfer switch will save you money in the long run. While you&rsquo;ll have to pay between <b>$400 and $2,500</b> to have the transfer switch installed, you&rsquo;ll recoup that amount later on when you don&rsquo;t have to pay for expensive repairs to your appliances, devices, and electrical system that may have burned out, overloaded, or stopped working due to a sudden loss of power or an incorrect <a href="https://www.angi.com/articles/how-to-hook-up-generator-to-house.htm">hook up of a generator to your home</a>. </p></div>

Q: What size whole house generator do I need to run central AC?

• <div><p>To power a central air system during a power outage, the whole-house generator will need to be at least 5,000 watts, and this number will significantly increase for larger units. Check the specific wattage requirements of your AC unit to choose the right <a href="https://www.angi.com/articles/whole-house-generator-sizing.htm">generator size</a>. Consider consulting a generator installer to ensure your whole-house generator meets your electrical load needs.</p></div>

Q: Can a natural gas generator work without electricity or in a power outage?

• <div><p>Yes, natural gas generators can work without electricity. Natural gas generators are a common type of backup or whole-house generator that operates when the electrical grid isn&rsquo;t working. The trick is using a <a href="https://www.angi.com/articles/cost-install-generator-transfer-switch.htm?entry_point_id=33797025">transfer switch</a> (which usually needs to be installed with the generator) that safely switches the home electrical system from the power grid to generator power when needed.</p></div>

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Verified Reviews for Generator Install pros in Somerville, MA

*The Angi rating for Generator Install companies in Somerville, 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 Somerville, 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 December 30, 2025

Reviewed in September 2024
I was referred by a close friend to contact Peter for my AC. I was able to communicate with him within an hour of reaching out to him. He was able to come and check out my AC the following day during our major heat wave this summer. My unit was up and running within a couple of hours. Pater was...
Cannon Sheet Metal
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Reviewed in August 2024
When I was selling my home, I had an urgent and unexpected need to relocate some smoke detectors to meet code. It looked like we might have to delay the sale. But when I explained the situation, 4th Generation made it happen and saved the day. My sale closed on time. It was professional, clean,...
4th Generation Electric, Inc.
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Reviewed in December 2023
Our project was a panel upgrade and generator install. From the first point of contact through point of completion Kevin's level of professionalism, customer service and follow through were beyond exceptional. He is very skilled and knowledgeable in the electrical field. He was able to...
Kevin Kelley Electrical LLC
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Reviewed in October 2022
Linwood and staff very friendly and courteous. Respectful of property. Cut down 6 trees in 2 days. Excellent clean -up. Reasonable price.
Linwood Tree
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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 September 2022
Discovered FB Electrical Serviced when getting our generator installed. They agreed to take on separate wiring jobs that others either refused or botched. The electricians were confident, competent and enthusiastic in solving our ancient wiring mysteries. Office staff, likewise, surpassed all...
FB Electrical Services Inc
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Reviewed in August 2022
Really liked the salesman, very personable. The sales pitch spends a little too much time talking about why their competitors' products don't work as well and are more expensive. Going into it the process I knew I like their design over others and was just looking for a quote, which I thought...
LeafFilter Gutter Protection
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Reviewed in March 2022
Great professional!! Great price. Nice people. Definitely hire them.
Hazardous Pro
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Reviewed in February 2021
Installed 10,000 kilowatt, back up generator, for a pool house.
Steven R. Berube, Electrician
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Reviewed in August 2020
This project was to have a solar battery installed -- I already have solar panels. I was looking into generators and someone from NEC Solar reached out with information and provided a quote. This was a much better option for me than a generator. The whole process was handled professionally,...
NEC Solar
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