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Top-Rated Generator install pros in Hewlett - Updated Nov 2026

Avatar for A/C Performance Power, Inc.
A/C Performance Power, Inc.
5.0(
4
)
Generator - Repair - For Business

Serving Hewlett, NY and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"Jim, the Owner provided timely, Expert generator repair, to get a 15 year old 30KW generator that hadnâ  t run in years operational in 30 minutes. We were fortunate to find him, and appreciate his skill, integrity...truly a consummate Professional ! 5+ Star recommendation"
Generator repair
Generator repair
Generator repair
Generator repair
Generator repair

+27

Response time9 hrs
Recommended by100%of homeowners
Avatar for Mr. Wonderful's Electric, Inc.
Mr. Wonderful's Electric, Inc.
4.7(
14
)
Portable Generator - Install

Serving Hewlett, NY and surrounding areas

Approved

In business since 2000

Free estimates

Credit card accepted

"Quick response; courteous and professional. Would definitely recommend this company for any electrical. I would definitely call Mr. wonderful Electrical for future electrical needs."
200 amp 2 meter service
200 amp PVC service
Chandelier
LED hi hats
200 amp panel

+5

Response time4 hrs
Response rate94%
2 neighbors recently requested a quote
Avatar for Star Electric
Star Electric
4.2(
125
)
Fixed Generator - InstallFixed Generator - Repair

Serving Hewlett, NY and surrounding areas

Approved

In business since 2015

Free estimates

Credit card accepted

"i recently had a tesla charger installed, and i am extremely satisfied with the service. the electrician did an outstanding job he was professional, knowledgeable, and completed the installation much faster than i expected while maintaining excellent quality. the work was clean, efficient, and everything was installed perfectly. on top of that, his pricing was very reasonable compared to other estimates i received. it’s not often you find someone who delivers great workmanship, works efficiently, and offers affordable rates. i highly recommend him to anyone needing electrical work or an ev charger installation."
49 neighbors recently requested a quote
Recommended by81%of homeowners
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Generator Install FAQs, answered by experts

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.

A 10,000-watt generator can run a small to mid-sized central AC unit (typically up to 3 tons or 36,000 BTU) along with a few other appliances. However, larger AC units or additional loads will require a bigger generator. Consult a local generator installer to ensure you add the correct size generator to your home.

Potential benefits of using a natural gas generator include reducing your carbon footprint, lower likelihood of carbon monoxide exposure, budget-friendly operating costs, and low-maintenance, continuous fuel supply. Some possible drawbacks, though, include higher initial installation costs, dependency on a natural gas supply, and installation complexity. Keep in mind that pros and cons will vary based on the type and brand of natural gas generator. 

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.

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. 

The Hewlett, NY homeowners’ guide to generator installs

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