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Verified Reviews for Generator Install pros in Nantucket, MA

*The Angi rating for Generator Install companies in Nantucket, 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 Nantucket, 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 September 16, 2025

Find Generator install pros in Nantucket

Avatar for Champion Electrical Services Inc
Champion Electrical Services Inc
5.0(
20
)

Serving Nantucket, MA and surrounding areas

In business since 2025

Free estimates

Emergency services offered

"Jason, has been an important resource for us over the last 7 years as we have renovated 2 old homes. Panel upgrades, wiring, appliance installation, stand by generator installation, electrical inspections etc. etc. He and his firm are very trustworthy, professional and skilled."
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Avatar for All Phases Mechanical
All Phases Mechanical
4.5(
75
)

Serving Nantucket, MA and surrounding areas

In business since 1983

Free estimates

Emergency services offered

"Carl and Henry were fantastic to deal with. Up front and honest. The turn around time from first call to install was beyond fast. The guys removed my old system and installed new. Up and running same day. Friendly courteous guys and cleaned up ! Highly recommended"
Additional Photos
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+6

Recommended by90%of homeowners
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Avatar for Big D Energy Solutions
Big D Energy Solutions
5.0(
12
)

Serving Nantucket, MA and surrounding areas

In business since 2024

Free estimates

Emergency services offered

"Punctual and professional. All of the work was completed right on schedule. They upgraded my entire home and replaced electrical panel. Definitely hiring again; I have them scheduled to repair the sprinkler system electrical work and the fans in both my bathrooms. The cost was surprisingly affordable! I cannot recommend enough."
Electrical Project
Electrical Project
Electrical wiring upgrade
Electrical Project
Electrical Project

+74

Recommended by100%of homeowners
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Avatar for Keding Electric
Keding Electric
4.9(
10
)

Serving Nantucket, MA and surrounding areas

In business since 2024

Free estimates

Emergency services offered

"I have hired Keding electrical on many projects on my home and the quality, consistency and timing of each project has been too notch. I look forward to working with Keding electrical for many more projects."
Response time1 day
Recommended by40%of homeowners
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Cape Cod Independent Power
3.5(
13
)

Serving Nantucket, MA and surrounding areas

In business since 2005

Free estimates

Emergency services offered

"I have only good things to say about the good staff Patrick and James and Anthony and Jean in the office. The problem was with the Generac trickle charger for the battery which starts the generator when the power goes off. Patrick tracked the cause of the problem and Anthony fixed it in short order after a small delay in getting a new part. Jean in the office kept me informed and is very pleasant to deal with. This group all seem eager to please.
"
Recommended by75%of homeowners
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Avatar for LifeCycle Transitions
LifeCycle Transitions
3.8(
175
)

Serving Nantucket, MA and surrounding areas

In business since 2007

Free estimates

Emergency services offered

"He was on-time, but was frustrated that there was no parking due to all the snow.  He was going to cancel, but we were able to find him a spot.  Initially he seemed a little annoyed with the circumstances, but ended up being really nice and helpful.  He had never installed a microwave before, so he was going through the directions along with me, but we got it up.  He patched up a hole we had, then a few shelves.  We ended up getting along really well, and he was kind enough to split his time within two visits, since we didn't have one of the items that we initially thought we would have. 
Overall it was a really good experience.  It was a rocky start, but after we got over the parking situation, he was professional, and really helpful with everything we needed from his end.
We were very happy with their service, thank you!
"
Additional Photos
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+49

Recommended by77%of homeowners
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Generator Install questions, answered by experts

Carbon monoxide emissions aren’t only dangerous to human life, but they also harm our planet. While natural gas generators emit lower levels of CO than other fuel sources, there are still ways to reduce emission levels. For example, shop around for an eco-friendly generator that complies with current emission standards. Also, make sure your generator is serviced regularly to avoid CO buildup. 

Generally, you’ll want to keep between 60 and 70 feet between the generator and the transfer switch. There are a few reasons for this, including:

  • The distance reduces the noise coming from the generator into your home.

  • It increases efficiency because you won’t have a voltage drop from this short of a distance.

  • Prevents carbon monoxide poisoning: keep at least 15 feet between your generator and an open window. 

While natural gas generators are costly, they’re a great option for standby power due to the reliability of natural gas as a fuel source. Unlike other fuels, natural gas is delivered through underground pipes, making outages extremely rare and less likely to be affected by the elements. As long as the area isn’t prone to earthquakes, they offer an unlimited supply of natural gas that doesn’t degrade over time or require storage in tanks.

You can expect a diesel generator to last for up to 30,000 hours of use, which works out to 20 to 25 years with the proper maintenance, of course. That depends on how much you use it, so a diesel generator used for emergencies a couple of times a year will last a lot longer than a generator that takes over for a faulty electrical grid every month for a day or two. 

Generators are usually sized by running watts and starting watts. Ideally, you’ll want a generator that can offer both the necessary running watts and starting watts for everything you need to power without going beyond 90% of its capacity. Calculate your home’s electrical load based on the breakers in your home or adding up the appliance and lighting needs of connected rooms.

The Nantucket, MA homeowners’ guide to generator installs

From average costs to expert advice, get all the answers you need to get your job done.

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