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Find Generator install pros in Chappaqua

Avatar for Spirelli Electric Inc
Spirelli Electric Inc
4.9(
233
)
Fixed Generator - InstallPortable Generator - RepairFixed Generator - Repair+4 more

Serving Chappaqua, NY and surrounding areas

Approved

In business since 1985

Free estimates

Warranties offered

"We needed a subpanel installed to our electrical system and wiring extended into our garage for the installation of a Tesla wall charger. Wilfredo & Dennis did the job for Spirelli. They were prompt, polite, COVID-safe, and did a great 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%
6 neighbors recently requested a quote
Avatar for GenShield LLC
GenShield LLC
5.0(
7
)
Fixed Generator - Repair

Serving Chappaqua, 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 Haney Services
Haney Services
5.0(
12
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+3 more

Serving Chappaqua, NY and surrounding areas

Approved

In business since 2014

Emergency services offered

Small jobs welcome

"Haney Services were a joy to work with. They were responsive, showed up on time, were professional, and did a fantastic clean install. They installed a dimmer light switch, and checked out my circuit breaker and hot water heater electrical wiring. Everything works perfectly, looks great, and were very reasonably priced. Would highly recommend!"
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(
122
)
Fixed Generator - InstallFixed Generator - Repair

Serving Chappaqua, NY and surrounding areas

Approved

In business since 2015

Free estimates

Credit card accepted

"i recently had a tesla charger installed, and i am extremely satisfied with the service. the electrician did an outstanding job he was professional, knowledgeable, and completed the installation much faster than i expected while maintaining excellent quality. the work was clean, efficient, and everything was installed perfectly. on top of that, his pricing was very reasonable compared to other estimates i received. it’s not often you find someone who delivers great workmanship, works efficiently, and offers affordable rates. i highly recommend him to anyone needing electrical work or an ev charger installation."
44 neighbors recently requested a quote
Recommended by83%of homeowners
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Generator Install questions, answered by experts

If you have a transfer switch properly installed, the generator and main electrical power cannot feed the system at the same time. However, you should still shut off the power at your main circuit breaker panel before activating the generator. If you do that, you’ll simply need to shut off the generator and reset your circuit breaker once the local power comes back on.

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.

Energy output depends on turbine size, average wind speed at your site, and system efficiency. A 5 kW turbine in a good wind location can generate 8,000 to 12,000 kilowatt-hours per year, which may cover a large portion of an average home’s needs. Accurate output estimates require a professional wind assessment and a review of your household’s energy usage patterns.

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.

Whole-house generators need to be installed on level ground several feet away from walls and other objects. Because they tap into the electrical system directly, they usually need to be close to your home electrical panel for a transfer switch installation. It also helps with installation if they are near to a gas line or propane tank installation.

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.