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  • Verified reviews icon845
    Verified electrical services reviews

Find Electricians in Islip

Avatar for TFC ELECTRIC, INC.
TFC ELECTRIC, INC.
5.0(
206
)
Electric Vehicle Charging Station InstallationElectric Vehicle Charging Station Installation - For BusinessElectrical Switches, Outlets & Fixtures - Install or Repair+8 more

Serving Islip, NY and surrounding areas

Approved

In business since 1994

Free estimates

Emergency services offered

"Great experience from start to finish. My wife and I needed to have 2 ceiling fans and light kits installed. The work was scheduled quickly and TFC Electrical Services was even able to do the job earlier than expected. Tom and Ralph arrived as scheduled, on time and we were given a fair price quote. They had to install electrical wiring and box in our bedroom ceiling prior to installing the fan and light. They took the time to protect our furniture and floors by covering everything with protective tarps. Additionally, the installed a fan and light kit in an adjacent staircase. The concern and respect that they showed for our home was admirable and appreciated. The installations were neat, clean and expertly completed. They completed all the work in about 3 hours. TFC Electrical Services should be a model for “ALL” other electrical contractors. Any future electrical work in my home will be offered to this company. Thank you Theresa, Tom and Ralph."
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+29

Response time2 days
Recommended by98%of homeowners
Avatar for Shamrock Electric Co Inc
Shamrock Electric Co Inc
4.9(
319
)
Electrical Switches, Outlets & Fixtures - Install or RepairElectric Vehicle Charging Station InstallationElectric Vehicle Charging Station Installation - For Business+10 more

Serving Islip, NY and surrounding areas

Approved

Super Service Award Winner

In business since 1992

Free estimates

Emergency services offered

"For the past 15 years Mike from Shamrock Electric has done extensive electrical work for two homes. He is personable, reliable, knowledgeable and fastidious. Recently he returned for a smaller job and completing a delicate onyx sconce installation with the same skill and expertise. I’m always confident that the job has been done right when Mike does my electrical work. I highly recommend him. He is a pro!"
Electrical Project
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+5

Response time9 hrs
1 neighbors recently requested a quote
Recommended by97%of homeowners
CDS Electrical, LLC
4.6(
44
)
Ceiling Fan - InstallElectrical Switches, Outlets & Fixtures - Install or RepairElectrical Switches, Outlets & Fixtures - Install or Repair - For Business+4 more

Serving Islip, NY and surrounding areas

Approved

In business since 2004

Free estimates

Customers say: Quick response

"Very easy to work with. Kept everything clean. And completed the work quicker than I would have thought. If I need an electrician in the future I will call them."
Response time9 hrs
Recommended by100%of homeowners
Avatar for PKJ Electrical
PKJ Electrical
5.0(
18
)
Electrical Wiring or Panel UpgradeElectric Vehicle Charging Station InstallationElectric Vehicle Charging Station Installation - For Business+10 more

Serving Islip, NY and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"PKJ Electrical is the most professional electrician's I have ever hired. They were on time, courteous and very knowledgeable. They replaced my breaker box. I have never before seen the wires so neat and organized as I did after he was finished with my job. I will only hire PKJ for all of my future electrical needs. Thank you again for such a wonderful experience."
Response time7 hrs
1 neighbors recently requested a quote
Recommended by100%of homeowners
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Electrical questions, answered by experts

Yes, but our analogy with the water hose doesn’t really work here. You see, electrical flow isn’t constant: It ebbs and flows like waves, coming in pulses of power. Hertz measures the rate of change in the flow of electricity, or how often it ebbs and flows. For example, 60Hz means that the electrons pulse through wiring 60 times per second. When they are pulsing, they’re in a brief retreat. Almost all United States equipment is rated for 60Hz.

It’s possible to distinguish a positive black wire from a negative black wire if you know what type of circuit the wires are in. If it’s an alternating current (AC), then black wires are positive. If it’s a direct current (DC), then black wires are negative. 

Sometimes, a circuit has two black wires. In that case, the positive black wire will be solid black while the negative black wire will have a white stripe on it. If you’re still unsure, you can use a multimeter to check.

If you need to run a wire from the meter to the breaker box, start by turning off the power using the main switch to avoid injury risks from live wires. Then, locate the ground wire from your meter and connect it to the ground bar of the breaker box. Connect the neutral wire using the same method to improve your circuit efficiency.

Next, locate the hot wires running from the main switch to the meter. To connect them to the correct terminals from meter to breaker, unscrew the nuts of the breaker hotwire terminals, insert the positive hotwire, and ensure it’s firmly attached. Finally, secure the wires with electrical tape and wire tie cables before re-securing your breaker box. Keep in mind that this process can be dangerous, so don’t hesitate to hire a local electrician.

A GFCI outlet can be 15A or 20A. The average American home power outlet is 15A.

First, check the current electrical code in your area to ensure spaces you’re considering meet the requirements. After that, your outlet’s location is up to you. If you’re moving it to hide wiring, you may want to move it in a spot that will also be hidden from view, such as behind a media center or table. As long as you meet the spacing guidelines set by electrical codes, you should be able to pick any spot in your home for an outlet. 

The Islip, NY homeowners’ guide to electrical services

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