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Avatar for All Phases Mechanical
All Phases Mechanical
4.5(
75
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

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
Avatar for Big D Energy Solutions
Big D Energy Solutions
5.0(
12
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

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
Cape Cod Independent Power
3.5(
13
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Nantucket, MA and surrounding areas

In business since 2005

Free estimates

Emergency services offered

"If I could give this company an A+++ I would. From the beginning, the entire job was explained over the phone, very detailed and 100% transparent. No surprises. The work was scheduled immediately an ended up being completed 3 weeks ahead of schedule- which is key when you're entering winter and you need a generator for blackouts in stormy weather. The installers showed up on time on every single occasion. They were quick, reliable, NICE, clean, and steadfast. The management kept me informed by telephone each time they were coming by my property and explained exactly what they were completing that day. The entire job was completed in roughly 8 days including permits. I have also contacted Cape Cod Independent Power post install and they respond 100% of the time in an extremely quick manor. I've been dealing with contractors for over 20 years and this team is one of the best I have ever dealt with. A true pleasure to work with."
Recommended by75%of homeowners
Avatar for LifeCycle Transitions
LifeCycle Transitions
3.8(
175
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

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!
"
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+49

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

Costs range from $500 to $2,500, depending on generator type and installation complexity.

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.

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. 

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.

While standby generators provide essential backup power, they can fail when you need them most due to lack of maintenance, fuel supply issues, dead batteries, electrical problems, or improper installation. To avoid costly failures, professional installation and regular maintenance are crucial. Licensed technicians ensure safety, uphold warranty requirements, comply with regulations, and provide expert servicing.

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.