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TRUSTED BY MAMARONECK, NY HOMEOWNERS

  • Average homeowner rating star icon3.9
    Average homeowner rating
  • Verified reviews icon25
    Verified generator installs reviews

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

Avatar for Frank's Generator Sales Service & Repair
Frank's Generator Sales Service & Repair
5.0(
22
)
Fixed Generator - InstallFixed Generator - RepairPortable Generator - Repair+4 more

Serving Mamaroneck, NY and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Free estimates

Emergency services offered

"I recently had my generator serviced by Franks Generator Sales and Service. Frank arrived on time was very knowledgeable and a pleasure to work with. I will definitely use Frank from now on and recommend him and Angie to my friends."
Generator emergency service call
Generator Project
Generator Service
Generator emergency service call
Generator Project

+29

Response time2 days
Response rate98%
10 neighbors recently requested a quote
Avatar for Tri-Cat Electric
Tri-Cat Electric
4.8(
11
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+2 more

Serving Mamaroneck, NY and surrounding areas

Approved

In business since 1999

Free estimates

Emergency services offered

"TriCat is very professional, clean, and prompt. Angelo is great and knows exactly what needs to be done. Their prices are also fair and comparable to other electricians in my area. The job was done on time. This is very important when trying to keep the renovations on schedule. I would definitely recommend them to a family or friend, and use them again myself."
Response time11 hrs
1 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for GenShield LLC
GenShield LLC
5.0(
7
)
Fixed Generator - RepairFixed Generator - InstallGenerator - Repair - For Business

Serving Mamaroneck, 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

10 neighbors recently requested a quote
Avatar for Haney Services
Haney Services
5.0(
12
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+3 more

Serving Mamaroneck, NY and surrounding areas

Approved

In business since 2014

Emergency services offered

Small jobs welcome

"Kevin was a fantastic elextrician-highly recommend! He completely tested all of our outlets and made them GFCI protected. He helped install water protector covers on the outdoor outlets. He also gave us advice on other things we could fix in our home. Kevin is reliable, trustworthy, kind, and passionate about his work! Will definitely be calling him in the future for more work!"
75" TV
Mounting TVs and outlets
Mounting TVs and outlets
Light & Exhaust fan
Light & Exhaust fan

+4

Avatar for Star Electric
Star Electric
4.2(
125
)
Fixed Generator - InstallFixed Generator - Repair

Serving Mamaroneck, 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."
52 neighbors recently requested a quote
Recommended by81%of homeowners
Avatar for JAB Electrical Services LLC
JAB Electrical Services LLC
5.0(
5
)
Fixed Generator - RepairGenerator - Repair - For Business

Serving Mamaroneck, NY and surrounding areas

Approved

In business since 2025

Emergency services offered

Small jobs welcome

"I had a great experience with Albert. He was extremely professional and easy to communicate with throughout the entire job. He clearly explained what needed to be done, kept me informed, and made sure everything was completed properly. He installed several outlets and fixtures in my home. He was careful, clean, and respectful of my space, leaving everything neat when the job was finished. I highly recommend Albert and this company for anyone looking for reliable, professional electrical work."
Recessed lighting
Recessed lighting
26 neighbors recently requested a quote
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Generator Install FAQs, answered by experts

Yes, in some locations, it is required by the National Electric Code (NEC) to have a transfer switch installed for electrical emergencies. In addition to following electrical code, generator transfer switches ensure your home is fully protected during a power outage. By switching the power from the main breaker to the generator breaker, you can seamlessly operate your HVAC, lights, appliances, devices, and more during an emergency. 

A 1,500 square foot home will likely need a 15kW to 20kW generator. When deciding on whole-house generator size, add up the total wattage of the devices that you’d like to continue running during a power outage. That way, you can ensure you purchase a generator that can power your necessary appliances or medical equipment during an electrical emergency.

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.

These advanced generators use a key fob or a smartphone app to remotely start, which is ideal for getting power back on immediately without venturing outside. This feature is more common on whole home generators, but you may be able to find it on large portable generators, too.

You can expect a diesel generator to last for up to 30,000 hours of use, which works out to 20 to 25 years with the proper maintenance, of course. That depends on how much you use it, so a diesel generator used for emergencies a couple of times a year will last a lot longer than a generator that takes over for a faulty electrical grid every month for a day or two. 

The Mamaroneck, NY homeowners’ guide to generator installs

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