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Verified Reviews for Generator Install pros in Vineyard Haven, MA

*The Angi rating for Generator Install companies in Vineyard Haven, 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 Vineyard Haven, 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 29, 2025

Find Generator install pros in Vineyard Haven

Avatar for EIGHT ELECTRIC LLC
EIGHT ELECTRIC LLC
5.0(
22
)

Serving Vineyard Haven, MA and surrounding areas

Approved

In business since 1996

Free estimates

Warranties offered

"Extremely satisfied with Andy and Kyle. They are both professional, knowledgeable and personable. They installed a new motor in the attic for our bathroom exhaust fans. A previous electrician had told us it would take maybe a few weeks to a month or more before he could secure a new motor. Andy got us one within a day! He also was able to diagnose and fix a crazy mess left from that previous electrician with wiring our old timer unit. We are so thankful we finally found a decent, caring electrician and would hire them again in an instant. We put our trust in them and were not disappointed. We highly recommend Belcastro Electric."
Ashburnham Solar
Kitchen Lighting
Chatham Fishing Dock
Lynn Seaport Marina
Rocky Point Fishing Pier

+168

2 neighbors recently requested a quote
Recommended by70%of homeowners
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Avatar for Services & More LLC
Services & More LLC
4.7(
27
)

Serving Vineyard Haven, MA and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

"I hired this company for spring cleanup, and when they got here they were able to do so much more They edged all my beds. They mulched everything. They filled my new raised beds with loam. They cleaned my two ponds. They went way over and above what I expected, I would recommend them highly to anyone. They .were professional. They were courteous. They left nothing behind. It was absolutely the best experience I’ve had hiring someone in a long time. I couldn’t be happier. I would highly recommend them to anyone for any projects."
Furniture Assembly
Bathroom Remodel
Bathroom Remodel
Bathroom Remodel
Bathroom Remodel

+4

135 neighbors recently requested a quote
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Avatar for Welles Electric, LLC
Welles Electric, LLC
4.6(
70
)

Serving Vineyard Haven, MA and surrounding areas

In business since 2004

Free estimates

Emergency services offered

"An outlet wasn't working.  Called and he said he'd be there that day or the next.  Arrived as promised the following day.  Pleasant, efficient and got the outlet working.  Would definitely use him again."
Shockingly Great Service
Additional Photos
Additional Photos
Additional Photos
14Kw Generator

+6

Recommended by95%of homeowners
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Avatar for Big D Energy Solutions
Big D Energy Solutions
5.0(
12
)

Serving Vineyard Haven, 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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Generator Install questions, answered by experts

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.

In most municipalities, you will need a permit to install a permanent home generator, including emergency backup, partial-home, and whole-home generators. A permit for a generator usually costs between $50 and $250, depending on where you live. Your electrician or certified generator installer will usually pull the permit for you—and might be required to do so by your building department—but you’ll be on the hook for the cost of the permit. You should ask your installer before agreeing to any work if they will pull the necessary permits for your project.

Sizing a generator is a careful process that requires calculating the electrical load of your entire house. You have to take into account every device you want to use and their wattage requirements, plus the wattage needed to start them, and look for a generator that can safely run all that at around 80% capacity.

In more practical terms, a small home can run on a 10,000-watt generator (and if you only want to power a few key appliances, much less than that). A mid-sized home may need something between 15,000 and 22,000 watts. Larger homes require 25,000 watts or more. 

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. 

You can determine what size generator you need for a transfer switch by matching the switch to the largest outlet on your generator. Larger generators can power up to 10 circuits, while most 5,000-watt generators can provide power to six circuits. So, if your generator’s largest outlet is 30 amps, you’ll need a 30-amp transfer switch.

The Vineyard Haven, 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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