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TRUSTED BY SELDEN, NY HOMEOWNERS

  • Average homeowner rating star icon4.9
    Average homeowner rating
  • Verified reviews icon10
    Verified generator installs reviews

Find Generator install pros in Selden

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

Serving Selden, NY and surrounding areas

Approved

Super Service Award Winner

In business since 2020

Small jobs welcome

Customers say: Quality work

"New to the area, I needed a hookup for an emergency generator and EV charger. Cole came to my home, took the time to discuss different options and answer questions, and provided a detailed, written estimate, all the same day as my initial inquiry. The project was completed within a few days. His price was very competitive and his work meticulous. A true professional."
Response time9 hrs
Response rate93%
1 neighbors recently requested a quote
Avatar for Morris Electric
Morris Electric
4.9(
30
)
Portable Generator - Install

Serving Selden, 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
5 neighbors recently requested a quote
Recommended by93%of homeowners
C.R. Electrical Contracting
4.3(
159
)
Portable Generator - Install

Serving Selden, NY and surrounding areas

Approved

In business since 2000

Free estimates

Credit card accepted

"Chris called and came over right away to give us an assessment of the project and the price for installing a new electrical panel. Fair price, superior work. He was flexible/accommodating to fit our job in quickly since we were going on vacation shortly. The day of the job, Chris stayed till late evening to complete the job. We are completely satisfied. His work is meticulous and neat. Chris is professional, experienced, excellent at his work, and very personable. Would not hesitate to recommend him to all."
Response time40 mins
Recommended by84%of homeowners
Avatar for DZ Electrical Contracting
DZ Electrical Contracting
4.8(
438
)
Generator - Install - For BusinessPortable Generator - Install

Serving Selden, NY and surrounding areas

Approved

In business since 1992

Free estimates

Emergency services offered

"Darren responded quickly to give an estimate, Rob installed new electrical panel, breakers and generator outlet outside. He showed up on time, we are very pleased with the job and very neat. We would recommend DZ and plan on using them in the future."
Response time5 hrs
Recommended by98%of homeowners
Avatar for A/C Performance Power, Inc.
A/C Performance Power, Inc.
5.0(
4
)
Generator - Repair - For Business

Serving Selden, 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 Selden, 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.

Gallery
43 neighbors recently requested a quote
Avatar for Pinnacle Power LLC
Pinnacle Power LLC
5.0(
8
)
Fixed Generator - InstallPortable Generator - Install

Serving Selden, NY and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

Full-service electrical company serving Long Island with reliability, professionalism, and precision for residential and commercial needs.\nSmartHomes, Generators, Renovations, New Construction, EV Chargers & More

Project Photos
Project Photos
Project Photos
Project Photos
Project Photos

+4

Response time5 hrs
Response rate98%
10 neighbors recently requested a quote
Avatar for R.C.K. Electric, Inc.
R.C.K. Electric, Inc.
4.3(
19
)
Portable Generator - Install

Serving Selden, NY and surrounding areas

Approved

In business since 2019

Free estimates

Emergency services offered

"Ryan is awesome! We needed to upgrade our garage electrical + smoke detectors & pool alarms @ our rental property in L.I. (Permit dept requirements) Ryan arrived right when he said he would & he stayed extra to help ADT solve a new thermostat issue. He texted us pics of each repair/replacement he did before he left the property. He gives good & honest advice, & is very easy to work with! Other electricians we contacted for this last minute project didnâ t even bother to get back to us! I highly recommend RCK Electric."
Response time5 hrs
Recommended by93%of homeowners
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Generator Install questions, answered by experts

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.

A 1,500 square foot home will likely need a 15kW to 20kW generator. When deciding on whole-house generator size, add up the total wattage of the devices that you’d like to continue running during a power outage. That way, you can ensure you purchase a generator that can power your necessary appliances or medical equipment during an electrical emergency.

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.

Generators run on a variety of fuel types, ranging from natural gas to solar power. Keep in mind that fuel costs varying by type:

  • Natural gas: $2,000–$21,000 per year 

  • Liquid propane: $2,000–$21,000 per year

  • Diesel: $3,000–$20,000 per year

  • Gasoline: $500–$3,000 per year

  • Solar generator: $2,000–$25,000 per unit

  • Battery backup: $10,000–$25,000 per unit

In some situations, yes. Never try to put biofuel into any home generator without checking the specifics first. If a generator has the ability to run on diesel, it can also run pure biofuel (the clear kind made from seed oils, for example). But if you are using biofuel made from animal fats or vegetable oils, the generator will need significant modifications before it can handle a sludgier type of biofuel.

The Selden, NY homeowners’ guide to generator installs

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