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  • Average homeowner rating star icon4.8
    Average homeowner rating
  • Verified reviews icon21
    Verified generator installs reviews

Top-Rated Generator install pros in West Islip - Updated Nov 2026

Avatar for Fielack Electric Corp.
Fielack Electric Corp.
4.5(
84
)
Fixed Generator - Install

Serving West Islip, NY and surrounding areas

Approved

In business since 1988

Free estimates

Warranties offered

"Wow, they just left and I am so beyond impressed with everything, from start to finish. Adam helped with our estimate and was a pleasure to work with. He came next day for our estimate and from there, went above and beyond to answer every single question and concern of mine, he was fair in his pricing, very timely in his responses and even remembered the layout of our home when I called a month later. They were even able to schedule the job next day due to the inclement weather. Jim and Matt arrived early and were so courteous and pleasant to work with (they were even extremely considerate of my infant's nap schedule). We had them install two new outlets for ac's and electronics and they had to snake the wires in impossible places. Jim listened to every single one of my concerns and came up with excellent solutions and they left everything in better condition than they found it. When I asked if there was another way to get the job done, he listened and offered to change his plan. It was so nice having a contractor actually listen to you and work with you. I will definitely be hiring them again - I am so glad I finally found an electrician that is respectful of an older home. Thank you Adam, Jim & Matt! You guys rock!"
Electrical Work
Response time1 day
2 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for C.R. Electrical Contracting
C.R. Electrical Contracting
4.3(
159
)
Portable Generator - Install

Serving West Islip, NY and surrounding areas

Approved

In business since 2000

Free estimates

Offers commercial services

"Chris did a great job and worked around my schedule. Upgraded the service to 200 amps with an additional sub panel. Removed all the old equipment and mast as well. Very clean install, would highly recommend C/R Electrical."
Response time40 mins
Recommended by84%of homeowners
Avatar for J&A Electrical Construction LLC
J&A Electrical Construction LLC
5.0(
19
)
Fixed Generator - InstallPortable Generator - Install

Serving West Islip, NY and surrounding areas

Approved

In business since 2016

Free estimates

Emergency services offered

"John is a very professional electrician and is very knowledgeable about what he does. Him and his crew have many years of experience doing this kind of work and it really shows. I just had them install a new car charger for me and I couldn’t be any happier with the results!"
Hex lights
West islip
West islip
West islip
Brand new house rough in

+43

18 neighbors recently requested a quote
Avatar for Call Me Electric, Inc.
Call Me Electric, Inc.
4.7(
34
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving West Islip, NY and surrounding areas

Approved

In business since 1985

Free estimates

Warranties offered

"I used Call Me Electric because they were highly reviewed on angie's list, and after using them their reviews are right on. they are amazing at what they do, and very prompt and professional. i had a light post installed outside, a light fixture installed at my front door and back door, electrical outlets repaired outside, light fixture installed in my office, and had my basement lights replaced with led lights. All the work was done just the way we wanted it. I want to think Ralph, John, Andrew, and Nick for being very professional and doing a great job. i highly recommend them for all your electric work and i will be using them in the future. thanks again."
GARDEN LIGHTING
APARTMENTS
AC
CORD REELS
LIGHTING

+22

Response time8 hrs
Response rate93%
Recommended by100%of homeowners
DEPENDABLE RENOVATIONS LLC
5.0(
23
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving West Islip, NY and surrounding areas

Approved

In business since 2025

Free estimates

Credit card accepted

"They showed up on time and went above and beyond the official work estimate making sure the new installed highhats were adjusted to for the brightness we wanted taking the extra time was appreciated"
2 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for A/C Performance Power, Inc.
A/C Performance Power, Inc.
5.0(
4
)
Generator - Repair - For Business

Serving West Islip, NY and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"Jim, the Owner provided timely, Expert generator repair, to get a 15 year old 30KW generator that hadnâ  t run in years operational in 30 minutes. We were fortunate to find him, and appreciate his skill, integrity...truly a consummate Professional ! 5+ Star recommendation"
Generator repair
Generator repair
Generator repair
Generator repair
Generator repair

+27

Response time9 hrs
Recommended by100%of homeowners
Avatar for Patience HVAC, LLC
Patience HVAC, LLC
4.9(
30
)
Fixed Generator - Repair

Serving West Islip, NY and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

"Anthony came to perform a cleaning and inspection of our old furnace. Immediately after he was done I felt a difference in air flow and fresher smelling air through the vents. He checked the furnace for any issues and didn't try to push any extra services. I did ask a bunch of questions and he answered them patiently! I look forward to calling him when its time to install Central Air and replace our furnace. Thank you!"
Peerless
Peerless Boiler with Hot Water
Annual Service
Response time4 hrs
Recommended by100%of homeowners
Avatar for J-TECH SURFACE SOLUTIONS, LLC
J-TECH SURFACE SOLUTIONS, LLC
New to Angi
Fixed Generator - RepairFixed Generator - InstallGenerator - Install - For Business+1 more

Serving West Islip, NY and surrounding areas

Approved

In business since 2014

Free estimates

Warranties offered

J-TECH SURFACE SOLUTIONS, LLC Authorized Generac generator independent dealer. Providing sales, service and install on Generac generators only. 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!

Fixed Generator Install
5 neighbors recently requested a quote
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Generator Install FAQs, answered by experts

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. 

Setting up utilities on a vacant property usually takes at least a few months, or between 6 weeks to 16 weeks. This process requires working with the local planning and zoning department, hiring a building contractor or engineer to design the utility layout, securing permits, laying the lines, and connecting the utilities.

Yes. You can connect your home back-up battery to a generator with its designated charger. Be sure that the output of the generator matches the input requirements for the battery for best results.

Here’s what you can run with different wattages and types of generators:

Portable generator:

  • 2,000 watts can handle a large appliance like a freezer or refrigerator, plus a few smaller items like phones or computer chargers. 

  • 4,000 watts will keep two large appliances operating and a few smaller devices.

  • 8,000 watts should power most essential appliances and other devices, including a sump pump, well pump, or your dishwasher.

Partial to whole-house generator:

  • 20,000 watts and above will make it seem like your home’s power is still on.

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.

The West Islip, NY homeowners’ guide to generator installs

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