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TRUSTED BY GREAT NECK, NY HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon11
    Verified generator installs reviews

Top-Rated Generator install pros in Great Neck - Updated Nov 2026

Avatar for JDM Electric INC.
JDM Electric INC.
4.8(
74
)
Fixed Generator - InstallGenerator - InstallGenerator - Install - For Business+1 more

Serving Great Neck, NY and surrounding areas

Approved

In business since 2006

Free estimates

Emergency services offered

"John and his team were excellent. Of the electricians I got quotes from, John was the only one who noticed that some existing breakers in my panel didn’t match the panel’s manufacturer and shouldn’t have been there. His team arrived on time, was thorough, and focused on solving the problem I brought them, with no upselling or scare tactics. On top of that, the price for my EV charger install was excellent. Highly recommend, and would work with again in a heartbeat."
Response time11 hrs
Response rate100%
2 neighbors recently requested a quote
Avatar for No Shorts Electric, Inc.
No Shorts Electric, Inc.
5.0(
99
)
Portable Generator - Install

Serving Great Neck, NY and surrounding areas

Approved

In business since 1984

Free estimates

Emergency services offered

"All I can say is that Luis and Eric are amazing! They installed my JuiceBox 40 amp electric car charger in an hour and half! Super professional, very clean work, and I appreciated that they wore boot covers so my house wouldnâ t get dirty. Since they ran the wire through my basement they had to remove my ceiling panels, after the install they cleaned the floors and installed the ceiling panels back like it never happened! All in all amazing company, super fair price compared to other companies, and their communication with us was beyond amazing. Dominic came by yesterday for an estimate and it was installed in less than 24 hours! I cannot say anymore amazing things about this company and will be a repeat customer for my other projects. 5/5 STARS! â­ ï¸ â­ ï¸ â­ ï¸ â­ ï¸ â­ ï¸ Summary: 1. Very Fair price compared to competitors 2. Highly skilled and professional work 3. Free Estimate 4. Will not leave you in the dark and will communicate with you throughout the process and any questions you may have. 5. Accepts Credit Cards"
old electrical meter and meter pan
Service Upgrade
Service Upgrade
old electrical meter and meter pan
old 100 amp fused electrical panel

+3

Response time2 hrs
Response rate96%
Recommended by97%of homeowners
Avatar for GenShield LLC
GenShield LLC
5.0(
7
)
Fixed Generator - RepairFixed Generator - InstallGenerator - Repair - For Business

Serving Great Neck, NY and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We specialize in generator service and repair and provide unmatched customer service! You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships and guarantee your satisfaction! \n

9 neighbors recently requested a quote
Avatar for Strong Island Electric, LLC
Strong Island Electric, LLC
4.7(
26
)
Fixed Generator - InstallGenerator - Install - For Business

Serving Great Neck, NY and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"I live in Queens and had Tom and Nick come by for a variety of electrical jobs, ranging from smaller items such as installing new switches throughout the house to rewiring of an electrical panel. They did an excellent job, and when my old electrical panel gave out, they were able to install a replacement pretty much on the spot."
Photos of our work
Photos of our work
Photos of our work
Photos of our work
Photos of our work

+10

Recommended by95%of homeowners
Avatar for A/C Performance Power, Inc.
A/C Performance Power, Inc.
5.0(
4
)
Generator - Repair - For Business

Serving Great Neck, 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 Real Power Electrical Contractors
Real Power Electrical Contractors
5.0(
6
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving Great Neck, NY and surrounding areas

Approved

In business since 2014

Credit card accepted

Offers commercial services

"They worked as a subcontractor for a commercial project I had with a county water station. Marty is very knowledgeable, on time, cooperative with other trades, neat. His crew is also the same. Great guy, I would hire him again."
Response time1 day
2 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Star Electric
Star Electric
4.2(
125
)
Fixed Generator - InstallFixed Generator - Repair

Serving Great Neck, NY and surrounding areas

Approved

In business since 2015

Free estimates

Credit card accepted

"Fast and super helpful. Gave me a proposal right away. Started work same week. If deviations were needed, was specific on what and why. Reasonable and fair pricing, and honest about their capabilities and areas of expertise. Professional team and went out the way to provide additional references for other concerns. I also appreciated the video Fabio took to show me the before and after, especially in areas I was unable to see."
49 neighbors recently requested a quote
Recommended by81%of homeowners
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Generator Install FAQs, answered by experts

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.

You may need a permit for a portable generator if you’ll be installing a transfer switch for your primary residence or similar work. Otherwise, a permit for other uses may not be necessary. Check your local building codes or ask a local generator installer for more information about your local regulations.

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.

In most cases, there are no tax credits available for home generators. However, that’s a general statement that applies to federal tax credits, so you might have access to state or local tax incentives. You can check the Database of State Incentives for Renewables & Efficiency (DSIRE) for more information about your area. If you hire a reliable home generator installer, they should also know if there are any state or local perks you can use to reduce your installation costs, including tax breaks and rebates.

To determine the right size generator for your house, you should calculate the total wattage of the appliances and devices you want to power during an outage. List all essential items, note their start-up wattages, and add them together.

Here are some typical wattage requirements for common appliances:

  • Refrigerator: 600 watts

  • Large dehumidifier: 700 watts

  • Large window air conditioner: 1,400 watts

  • Water heater: 3,000 to 4,500 watts

  • Electric furnace: 5,000 to 25,000 watts

A 7,500-watt generator might be sufficient for essentials like a refrigerator, freezer, well pump, and lighting circuits. However, for high-demand items like a water heater or furnace, a whole-home generator is a better choice. A portable generator may be enough if you only need to power a few critical items.

While home square footage can offer a rough estimate, it is not always a reliable indicator. For reference, here are some typical generator sizes based on square footage:

  • 1,000 sq ft: 6–9 kW

  • 1,500 sq ft: 7–10 kW

  • 2,000 sq ft: 10–14 kW

  • 2,500 sq ft: 12–16 kW

  • 3,000 sq ft: 16–20 kW+

For the most accurate sizing, consult a professional who can calculate your home's peak and average power consumption and recommend the optimal generator.

The Great Neck, NY homeowners’ guide to generator installs

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