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Verified Reviews for Generator Install pros in Nassau, NY

*The Angi rating for Generator Install companies in Nassau, 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 Nassau, 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 June 20, 2026

Find Generator install pros in Nassau

S & S Electric of NY, LLC
5.0(
141
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving Nassau, NY and surrounding areas

Approved

Super Service Award Winner

In business since 1989

Free estimates

Emergency services offered

"Very responsive and easy to work with. High quality work, has extensive electrical experience. Also provided and installed whole house back up generator."
New 200 amp electrical service panel
Existing 100 amp electrical service meter & pa
Exiting 2 meter, 2 panel electrical service
New 2 family, 2 panel circuit breaker service
Response time1 day
1 neighbors recently requested a quote
Recommended by74%of homeowners
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Evolution Power and Development
4.8(
26
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving Nassau, NY and surrounding areas

Approved

Super Service Award Winner

In business since 2019

Offers commercial services

Customers say: Quick response

"Jesse completed the electrical work for our new above ground pool and also replaced our electrical panel. He was professional, timely and very reasonably priced. We will use him for all future electrical work at our home."
Response time9 hrs
Response rate97%
19 neighbors recently requested a quote
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Avatar for Rubino Electric
Rubino Electric
4.8(
27
)
Fixed Generator - InstallPortable Generator - Install

Serving Nassau, NY and surrounding areas

Approved

In business since 1999

Free estimates

Customers say: Terrific value

"Awesome service!!! Really did an outstanding job for install, planning, and cleanup. Needed a new wire run and circuit for a new over the range microwave. Again awesome job! Highly recommended!!"
Service upgrades
Response time10 hrs
Response rate93%
1 neighbors recently requested a quote
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Avatar for Crisafulli Bros. Home Services
Crisafulli Bros. Home Services
4.7(
72
)
Fixed Generator - InstallFixed Generator - Repair

Serving Nassau, NY and surrounding areas

Approved

In business since 1939

Credit card accepted

Offers commercial services

"Brandon came out this morning to assess the issue. He was very polite and professional. Maximus and Jon were my installers. They were professional, polite and got the job done timely. Great guys!"
Response time9 hrs
Response rate86%
48 neighbors recently requested a quote
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Avatar for Least Resistance Electrical Contracting LLC
Least Resistance Electrical Contracting LLC
5.0(
14
)
Fixed Generator - Install

Serving Nassau, NY and surrounding areas

Approved

In business since 2025

Emergency services offered

Warranties offered

"Installed a 220W plug in for my welder. Great work super nice guy! Definitely recommend. Went over everything with me, very detailed and takes pride in his work. Easy to contact and answers very quickly. Thanks Steve!"
Let There Be Light!
Sub Panel
Early Stages of Electrical Rough In.
4 Gang Switch Box
Sub Panel Service Entry

+17

5 neighbors recently requested a quote
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Avatar for CHIEF ELECTRIC LLC
CHIEF ELECTRIC LLC
5.0(
20
)
Portable Generator - Install

Serving Nassau, NY and surrounding areas

Approved

In business since 2008

Free estimates

Emergency services offered

"Excellent job installing our 120V outdoor generator outlet! The weatherproof box is securely mounted, ran the conduit neatly, and clearly labelled for emergency use. I truly appreciate the quick turnaround time and how efficient you got everything set up and tested. Highly recommend for any fast reliable electrical work!"
CHIEF ELECTRIC LLC
18 neighbors recently requested a quote
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Avatar for Andrus Power Solutions
Andrus Power Solutions
5.0(
1
)
Fixed Generator - InstallGenerator - Install - For Business

Serving Nassau, NY and surrounding areas

Approved

In business since 1991

Free estimates

Emergency services offered

"We had a great experience with Andrus. Tony came out before our Kohler generator installation to clean up our electrical panel and did an incredibly thorough job. Everything was left clean and organized. The generator installation itself went very smoothly. The team was professional, knowledgeable and respectful of our property, and everything was explained clearly along the way. We're very happy with the finished installation and feel much better knowing we're prepared for the next outage. Would definitely recommend Andrus!"
Generator Repair
Response time6 days
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Avatar for Troy Generator Service
Troy Generator Service
New to Angi
Fixed Generator - Repair

Serving Nassau, NY and surrounding areas

Approved

In business since 2015

Free estimates

Credit card accepted

Troy Generator Service LLC is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers interests, and make their concerns the basis of our business. 21 years experience.

Response time20 mins
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Avatar for Mac & Son Electric LLC
Mac & Son Electric LLC
New to Angi
Portable Generator - Repair

Serving Nassau, NY and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

Mac & Son Electric LLC is a company that specializes in panel and service upgrades, electrical remodeling, troubleshooting, interior and exterior lighting, commercial and residential, and any electrical projects or issues.

200-amp Service Upgrade
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Showing 1-10 of 36
Generator Install questions, answered by experts

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.

The amount of time a standby generator can run continuously is around 3,000 hours on average. However, standby generators can generally run indefinitely as long as they have a continuous fuel supply. Generators hooked up to a home’s natural gas supply are the best option for extended usage, as these won’t rely on a finite fuel supply based on how much you have in storage. Generators running on liquid propane or diesel won’t last as long, as these require fuel storage and regular refueling to stay running.

In some situations, yes. Never try to put biofuel into any home generator without checking the specifics first. If a generator has the ability to run on diesel, it can also run pure biofuel (the clear kind made from seed oils, for example). But if you are using biofuel made from animal fats or vegetable oils, the generator will need significant modifications before it can handle a sludgier type of biofuel.

Most homeowners won't be able to claim a home generator as a tax write-off. However, a whole-house generator may be tax-deductible in certain situations depending on its purpose. For instance, if it's needed to power essential medical equipment, it may qualify as a medical expense deduction. Also, in some cases, businesses can deduct a generator as a business expense if it supports operations. Always consult a tax professional to determine eligibility based on your specific circumstances and the applicable IRS regulations.

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 Nassau, 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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