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TRUSTED BY HOLTSVILLE, NY HOMEOWNERS

  • Average homeowner rating star icon4.8
    Average homeowner rating
  • Verified reviews icon1.7k+
    Verified electrical services reviews

Top-Rated Electricians in Holtsville - Updated Nov 2026

Avatar for Shamrock Electric Co Inc
Shamrock Electric Co Inc
4.9(
327
)
Electric Vehicle Charging Station Installation - Materials Not ProvidedElectrical Wiring or Panel UpgradeElectric Vehicle Charging Station Installation+10 more

Serving Holtsville, NY and surrounding areas

Approved

Super Service Award Winner

In business since 1992

Free estimates

Emergency services offered

"Mike Connelly of Shamrock Electric Co. Coordinated the installation of my whole house Generac generator with PSEG long island and my plumber. He connected the automatic transfer switch and fully tested the system upon completion of the install. He has it set to run a test for 10 minutes once a week. My wife and I are extremely happy with the unit and the professional set-up by Shamrock Electric Company ."
Electrical Project
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+5

Response time6 hrs
2 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for PKJ Electrical
PKJ Electrical
5.0(
19
)
Electric Vehicle Charging Station Installation - Materials Not ProvidedElectrical Wiring or Panel UpgradeElectric Vehicle Charging Station Installation+10 more

Serving Holtsville, NY and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"Everything went great. PKJ electric did a great job. They even rewired my outdoor lights in a way that it isn’t going across my grass like It was before they took care of it! I would definitely recommend them and I would definitely use them again. Very professional."
Response time7 hrs
Response rate100%
2 neighbors recently requested a quote
Avatar for 144 ELECTRIC ENTERPRISES LLC
144 ELECTRIC ENTERPRISES LLC
5.0(
15
)
Electrical Switches, Outlets & Fixtures - Install or RepairCeiling Fan - Install

Serving Holtsville, NY and surrounding areas

Approved

In business since 2003

Free estimates

Credit card accepted

"This is one of the best service companies I have ever dealt with! I the age of trying to find a company that will do work efficiently and effectively, 144 Electric and Mike are a treasure! The work was not only done right, it also fixed all the previous problems and issues that existed before! We highly recommend him and will share this with our neighbors and friends! Thank you Mike!"
Al and Mel
Al and Mel
Al and Mel
Al and Mel
Al and Mel

+8

Response time9 hrs
Response rate86%
4 neighbors recently requested a quote
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Electrical FAQs, answered by experts

Natural gas and electricity rates vary significantly based on location, and pricing can change over time, too. It’s possible that in locations where natural gas is particularly inexpensive, it will cost less than grid-based electricity will. However, you should also factor in the generator’s initial costs and maintenance needs, as well as its noise level and if it can comfortably power all your home appliances.

Yes, you can daisy chain outlets, which involves connecting multiple outlets in series. However, ensuring the circuit can handle the additional load is important to avoid overloading and tripping the breaker. The total number of outlets on a single circuit should not exceed the recommended limit, typically eight on a 15-amp circuit. Hiring a licensed electrician is always advisable for complex installations or if you're unsure of what to do.

Just like apples in a bunch, one bad outlet can cause other outlets to stop working. This is especially true if the outlets are connected in a series on the same circuit. When one outlet develops a fault, it can spread to every outlet downstream of the original.

If your plug feels hot to the touch, it’s likely a sign of an electrical issue that needs immediate attention. Check for signs of melting or discoloration around the plug, as well as any burning smells or smoke. If you notice any of these signs, immediately unplug any devices and do not use the outlet again until it’s been inspected by a qualified electrician.

Short circuits can cause fires, electrical burns, and electrocution, which can lead to serious injury or even death. That’s why it’s important to take preventative measures to prevent short circuits, like getting annual electrical maintenance and an electrical inspection every two to five years, depending on the age of your home.

The Holtsville, NY homeowners’ guide to electrical services

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