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  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon19
    Verified generator installs reviews

Verified Reviews for Generator Install pros in Stony Brook, NY

*The Angi rating for Generator Install companies in Stony Brook, NY 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 Stony Brook, NY 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 19, 2024

Top-Rated Generator install pros in Stony Brook - Updated Nov 2026

CPT Electric
5.0(
62
)
Fixed Generator - InstallPortable Generator - Install

Serving Stony Brook, NY and surrounding areas

Approved

Super Service Award Winner

In business since 2020

Small jobs welcome

Customers say: Quality work

"New to the area, I needed a hookup for an emergency generator and EV charger. Cole came to my home, took the time to discuss different options and answer questions, and provided a detailed, written estimate, all the same day as my initial inquiry. The project was completed within a few days. His price was very competitive and his work meticulous. A true professional."
Response time9 hrs
Response rate93%
Recommended by79%of homeowners
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Avatar for C.R. Electrical Contracting
C.R. Electrical Contracting
4.3(
159
)
Portable Generator - Install

Serving Stony Brook, NY and surrounding areas

Approved

In business since 2000

Free estimates

Offers commercial services

"Chris did a great job and worked around my schedule. Upgraded the service to 200 amps with an additional sub panel. Removed all the old equipment and mast as well. Very clean install, would highly recommend C/R Electrical."
Response time40 mins
Recommended by84%of homeowners
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Avatar for DZ Electrical Contracting
DZ Electrical Contracting
4.8(
438
)
Generator - Install - For BusinessPortable Generator - Install

Serving Stony Brook, NY and surrounding areas

Approved

In business since 1992

Free estimates

Emergency services offered

"Darren responded quickly to give an estimate, Rob installed new electrical panel, breakers and generator outlet outside. He showed up on time, we are very pleased with the job and very neat. We would recommend DZ and plan on using them in the future."
Response time5 hrs
1 neighbors recently requested a quote
Recommended by98%of homeowners
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DEPENDABLE RENOVATIONS LLC
5.0(
23
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving Stony Brook, NY and surrounding areas

Approved

In business since 2025

Free estimates

Credit card accepted

"They showed up on time and went above and beyond the official work estimate making sure the new installed highhats were adjusted to for the brightness we wanted taking the extra time was appreciated"
3 neighbors recently requested a quote
Recommended by91%of homeowners
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Avatar for A/C Performance Power, Inc.
A/C Performance Power, Inc.
5.0(
4
)
Generator - Repair - For Business

Serving Stony Brook, 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
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Avatar for R.C.K. Electric, Inc.
R.C.K. Electric, Inc.
4.3(
19
)
Portable Generator - Install

Serving Stony Brook, NY and surrounding areas

Approved

In business since 2019

Free estimates

Emergency services offered

"Ryan is awesome! We needed to upgrade our garage electrical + smoke detectors & pool alarms @ our rental property in L.I. (Permit dept requirements) Ryan arrived right when he said he would & he stayed extra to help ADT solve a new thermostat issue. He texted us pics of each repair/replacement he did before he left the property. He gives good & honest advice, & is very easy to work with! Other electricians we contacted for this last minute project didnâ t even bother to get back to us! I highly recommend RCK Electric."
Response time5 hrs
Recommended by93%of homeowners
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Avatar for Mister Sparky
Mister Sparky
4.8(
8
)
Portable Generator - Install

Serving Stony Brook, NY and surrounding areas

Approved

Free estimates

Credit card accepted

As the owner of our local Mister Sparky franchise, I want to personally thank you for considering us for your electrical needs. My team and I are dedicated to providing top-notch service because we believe that every customer deserves the best. \n \nThank you for putting your trust in us.

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125 neighbors recently requested a quote
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Generator Install FAQs, answered by experts

As a safety measure, you should always turn off the main breaker while operating your generator’s backup breaker. In addition, you should also switch off all appliance breakers so you don't have a power surge when the main breaker turns back on. And finally, turning off the main breaker prevents back-feeding, which endangers utility workers with the risk of electrocution. Back-feeding could also destroy the electrical circuits of your neighbors if they use the same power network.

While the rating will tell you how many watts the refrigerator needs at the peak of its cycle, it requires additional wattage to start. At the bare minimum, you’ll need a 1,500-watt generator to get the fridge up and running after a blackout. A 2,000-watt generator should be sufficient for most home refrigerators.

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. 

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.

If you’re wondering if you can use your electric vehicle as a backup battery, it depends on whether your EV is compatible with bidirectional charging. This technology allows energy to flow both ways, enabling vehicle-to-home (V2H) backup power, vehicle-to-load (V2L) for appliances and camping, and vehicle-to-grid (V2G) to support the power grid. Compatible EVs convert stored DC energy into usable AC power, helping reduce energy costs and enhance grid stability while providing emergency backup power.

The Stony Brook, NY 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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