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Best generator install pros near Greenwich, NY

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

Avatar for Mr. Electric of Queensbury
Mr. Electric of Queensbury
4.7(
62
)
Portable Generator - Install

Serving Greenwich, NY and surrounding areas

Approved

In business since 2017

Emergency services offered

Credit card accepted

"From our initial request for an estimate to install of a Generac generator to the completion of the work, our experience exceeded our expectations. The estimate was detailed and professional. The technician, Bryan who did the work was knowledgeable, very organized, explained the job thoroughly and the end result clearly demonstrated his abilities through his excellent quality of work. The overall customer service of all the staff involved was commendable. We would highly recommend Sean, Jeanne and their excellent team."
LED Flood Lights to illuminate new Sisn
Ran new circuit to attic
LED Wall Pack installed
New Fan where nothing existed previously
Attic Receptacles

+14

Response time1 day
Recommended by96%of homeowners
Avatar for Crisafulli Bros. Home Services
Crisafulli Bros. Home Services
4.6(
67
)
Fixed Generator - InstallFixed Generator - Repair

Serving Greenwich, NY and surrounding areas

Approved

In business since 1939

Credit card accepted

Offers commercial services

For over 80 years, Crisafulli Bros. Plumbing & Heating Contractors, Inc. has provided plumbing, sewer and drain, heating and cooling design, installation, service, scheduled maintenance, and electrical services to our clientele. Founded in 1939, our company now spans three generations combining the pride and craftsmanship you expect from a locally owned and operated family business with the resources and knowledge available from a large national company. \n \nWith a growing workforce and a fleet of vehicles driving around every upstate NY neighborhood, Crisafulli Bros. is one of the largest mechanical contracting companies in the Capital Region. Our vast resources and commitment to quality led to us being recognized as the Best of the Capital Region for over 16 straight years and named a Top Work Place. We have set the standard for plumbing, heating, cooling, and electrical craftsmanship in the region.

Response time1 day
34 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Kriz General Services, LLC
Kriz General Services, LLC
4.2(
5
)
Fixed Generator - Install

Serving Greenwich, NY and surrounding areas

Approved

In business since 2000

Free estimates

Small jobs welcome

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 services that are customization 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!

Response time1 day
Recommended by100%of homeowners
Avatar for Knickerbocker enterprises
Knickerbocker enterprises
New to Angi
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+3 more

Serving Greenwich, NY and surrounding areas

Approved

Small jobs welcome

Credit card accepted

Self employed since 2007. excavation and land clearing. dumpster rental and clean outs. boulder retaining walls and hardscaping. underground electrical services. willing to deliver small and large quantities of sand, gravel and topsoil.

Tennis court
Tennis court
Tennis court
Tennis court
Court and garden

+9

1 neighbors recently requested a quote
Showing 1-10 of 34
Generator Install FAQs, answered by experts

A 10,000-watt generator can run a small to mid-sized central AC unit (typically up to 3 tons or 36,000 BTU) along with a few other appliances. However, larger AC units or additional loads will require a bigger generator. Consult a local generator installer to ensure you add the correct size generator to your home.

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.

A portable generator can supply power to selected appliances and circuits in a home, but it's generally not designed to handle the entire household's electrical needs simultaneously. Portable generators have limited wattage capacity, so they are only designed to power essential devices and electronics temporarily until local power is restored. If your power needs outweigh the capabilities of a portable generator, consider installing a whole-home generator instead.

The cost to install a whole-house generator averages $5,200, with a typical price range of $1,500 to $8,900. However, total costs can vary from $400 for a small portable unit to over $18,000 for a large-capacity system. The most significant cost factor is the generator's size and capacity, but other variables include the brand, fuel type, and labor for assembly and installation.

Generator costs can be broken down by type:

  • Portable or Emergency Backup Generators (1kW–7.5kW): $500 to $2,000

  • Partial-Home Generators (9kW–20kW): $2,000 to $6,500

  • Whole-House Generators (22kW–48kW): $5,000 to $18,000

To avoid paying for more power than you need, consider hiring an electrician to calculate the electrical load for your essential appliances. It is also recommended to get at least three quotes to find the best deal for your specific needs and budget.

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.

The Greenwich, NY homeowners’ guide to generator installs

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