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

Avatar for Shalkham Electric & Construction Co.
Shalkham Electric & Construction Co.
5.0(
6
)
Fixed Generator - InstallFixed Generator - RepairPortable Generator - Install

Serving Westfield, NY and surrounding areas

Approved

In business since 2023

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 offer a variety of Electrical and Construction services that are customizable to each individual project. 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!

14 neighbors recently requested a quote
GREINER ELECTRIC LLC
5.0(
1
)
Fixed Generator - Install

Serving Westfield, NY and surrounding areas

Approved

In business since 2023

Free estimates

Offers commercial services

GREINER ELECTRIC 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. \n \n

2 neighbors recently requested a quote
Recommended by100%of homeowners
Curt Mcrae Electric
0.5(
1
)
Generator - Install - For BusinessGenerator - Repair - For BusinessPortable Generator - Install+1 more

Serving Westfield, NY and surrounding areas

In business since 1991

Free estimates

With over 30 years of experience serving New York, Mcrae Electrical is your solution for all your electrical needs. We take great pride in our extreme professionalism, timeliness and superior customer service on every job. We make sure to develop a lasting relationship so that the next time service is needed there will be no question on who to call. Satisfaction guaranteed!

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Generator Install FAQs, answered by experts

Yes, natural gas generators can work without electricity. Natural gas generators are a common type of backup or whole-house generator that operates when the electrical grid isn’t working. The trick is using a transfer switch (which usually needs to be installed with the generator) that safely switches the home electrical system from the power grid to generator power when needed.

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.

With proper maintenance, a whole-house generator can last between 20 and 40 years. The specific lifespan depends on how often and for how long the generator is used, and some models may have their life expectancy rated in hours of operation. To maximize its lifespan, expect to spend around $150 to $300 per year for annual maintenance checks from a qualified technician. During these checks, a technician will inspect the engine filter, starting mechanism, fuel, lubrication, and coolant levels. Consulting your installer and choosing a low-impact fuel like natural gas or diesel can also help ensure your generator lasts as long as possible.

To power a central air system during a power outage, the whole-house generator will need to be at least 5,000 watts, and this number will significantly increase for larger units. Check the specific wattage requirements of your AC unit to choose the right generator size. Consider consulting a generator installer to ensure your whole-house generator meets your electrical load needs.

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. 

The Westfield, NY homeowners’ guide to generator installs

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