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TRUSTED BY CHAPPAQUA, NY HOMEOWNERS

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  • Verified reviews icon37
    Verified generator installs reviews

Find Generator install pros in Chappaqua

Avatar for Frank's Generator Sales Service & Repair
Frank's Generator Sales Service & Repair
5.0(
21
)
Fixed Generator - InstallPortable Generator - InstallFixed Generator - Repair+4 more

Serving Chappaqua, 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%
18 neighbors recently requested a quote
Avatar for Spirelli Electric Inc
Spirelli Electric Inc
4.9(
233
)
Fixed Generator - InstallFixed Generator - RepairPortable Generator - Repair+4 more

Serving Chappaqua, NY and surrounding areas

Approved

In business since 1985

Free estimates

Warranties offered

"Our electrician, Jeff Uffer, repaired the sockets and the switch and went over the rest of the job with us. He scheduled a second visit to complete the installations because we had not ordered all of the correct detectors for the job."
New recessed lighting
New electric baseboard heat
New lighting in closet
Replacement of switches and outlets
Additional Photos

+21

Response time1 day
Response rate100%
9 neighbors recently requested a quote
Avatar for Star Electric
Star Electric
4.1(
119
)
Fixed Generator - InstallFixed Generator - Repair

Serving Chappaqua, 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."
59 neighbors recently requested a quote
Recommended by85%of homeowners
Nilaj General Construction
5.0(
6
)
Fixed Generator - InstallPortable Generator - Install

Serving Chappaqua, NY and surrounding areas

Approved

In business since 2011

Free estimates

Nilaj General Construction proudly serves its customers with pride, integrity and attention to the details that matter most to you. This is one of the many things that sets us apart from the rest. We are locally owned and operated. Give us a call today!

Response time20 mins
Response rate92%
1 neighbors recently requested a quote
Avatar for JAB Electrical Services LLC
JAB Electrical Services LLC
5.0(
5
)
Fixed Generator - RepairGenerator - Repair - For Business

Serving Chappaqua, NY and surrounding areas

Approved

In business since 2025

Credit card accepted

Offers commercial services

"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
30 neighbors recently requested a quote
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Generator Install questions, answered by experts

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.

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.

In many cases, yes. There are models called dual-fuel generators and fuel switches, but only between certain types of fuel. For example, with the right setup you can convert a generator from natural gas to propane. Some allow switching between diesel and gasoline. There are even tri-fuel generators available in some cases, which adds a large layer of security if you are worried about fuel availability in times of crisis. Always check your generator capabilities and manual instructions before trying to switch fuels. Some generators can use another fuel but may need a fuel conversion kit to prep them first.

While diesel is relatively stable, it won’t last nearly as long as propane and you may have to replace it if it sits unused for too long. Diesel can sometimes struggle to work efficiently or start engines during especially cold weather, so it’s not the best choice for every climate. Compared to fuels like propane and natural gas, diesel generators tend to be noisier and create more exhaust, which isn’t always ideal for home use.

You can determine what size generator you need for a transfer switch by matching the switch to the largest outlet on your generator. Larger generators can power up to 10 circuits, while most 5,000-watt generators can provide power to six circuits. So, if your generator’s largest outlet is 30 amps, you’ll need a 30-amp transfer switch.

The Chappaqua, NY homeowners’ guide to generator installs

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