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TRUSTED BY CENTRAL ISLIP, NY HOMEOWNERS

  • Average homeowner rating star icon4.3
    Average homeowner rating
  • Verified reviews icon15
    Verified generator installs reviews

Find Generator install pros in Central Islip

CPT Electric
5.0(
62
)
Fixed Generator - InstallPortable Generator - Install

Serving Central Islip, NY and surrounding areas

Approved

Super Service Award Winner

In business since 2020

Small jobs welcome

Customers say: Quality work

"Cole was very professional, installed a kitchen ceiling fan, a bathroom fixture, high hats in the living room, and installed 2 outlets and moved my plate for my landline. He cleaned up and there was nothing for me to do after he left except admire his work."
Response time9 hrs
Response rate93%
Recommended by79%of homeowners
Avatar for Morris Electric
Morris Electric
4.9(
30
)
Portable Generator - Install

Serving Central Islip, NY and surrounding areas

Approved

In business since 2000

Free estimates

Customers say: Quick response

"He made room in my electrical panel by installing double circuit-breakers to accommodate my home. Based on the work and how they presented themselves, I would recommend them. Very clean and professional, and I would hire them again in a heartbeat. Their price was reasonable, the work was great, and it was an overall pleasant experience."
Lake Ronkonkoma House
Lake Ronkonkoma House
200amp upgrade
200amp upgrade
200amp upgrade

+3

Response time2 hrs
3 neighbors recently requested a quote
Recommended by93%of homeowners
Leone & Sons Electric
4.8(
56
)
Fixed Generator - InstallPortable Generator - Install

Serving Central Islip, NY and surrounding areas

Approved

In business since 2016

Credit card accepted

Customers say: Quality work

"Vinny was an excellent electrician. From start to finish, he was easy to deal with and we had clear communication throughout the entire process. He provided great service at a fair price and did a very good job installing light fixtures, repairing broken outlets, and installing a 40amp outlet so I can charge my electric car. I would recommend him and do business with him again."
Response time12 hrs
5 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for GenShield LLC
GenShield LLC
5.0(
6
)
Fixed Generator - Repair

Serving Central Islip, 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

7 neighbors recently requested a quote
Wilburforce Electric LLC
5.0(
8
)
Portable Generator - Install

Serving Central Islip, NY and surrounding areas

Approved

In business since 2012

Free estimates

Credit card accepted

"They were extremely honest, courteous, need and fair. We had them install all of the electric for my pool equipment, lights etc. and run electric to the dock for boat power. They were so good, we had them come back and re run all the electrical in the downstairs of our house including new outlets, lights etc. we also had them upgrade our panel to a 200 amp. I can not say enough about how clean and easy they were to work withâ ¦.I would recommend them 100%!"
Response time3 hrs
Recommended by100%of homeowners
Avatar for A/C Performance Power, Inc.
A/C Performance Power, Inc.
5.0(
4
)
Generator - Repair - For Business

Serving Central 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 Mister Sparky
Mister Sparky
5.0(
6
)
Portable Generator - Install

Serving Central Islip, NY and surrounding areas

Approved

Free estimates

Credit card accepted

As the owner of our local Mister Sparky franchise, I want to personally thank you for considering us for your electrical needs. My team and I are dedicated to providing top-notch service because we believe that every customer deserves the best.\n\nThank you for putting your trust in us.

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Generator Install questions, 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.

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.

Yes, installing a generator usually increases your property value because buyers are getting the added peace of mind knowing they’ll be able to maintain power through blackouts. In most cases, you should see close to a 100% return on investment (ROI). Keep in mind that home generators usually need a permanent foundation, and installing a concrete slab will likely raise your property taxes slightly.

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.

Natural gas generators are designed to run for extended periods of time, such as power outages during a natural disaster. Since there’s no limit to the supply of natural gas, they don’t need to stop for refills. However, generators do need maintenance, including pauses to check and add oil. Constantly running them will also cause a lot more wear and tear, leading to a shorter lifespan.

The Central Islip, NY homeowners’ guide to generator installs

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