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Top-Rated Electrical wiring or panel upgrade pros in East Islip - Updated Nov 2026

Avatar for TFC ELECTRIC, INC.
TFC ELECTRIC, INC.
5.0(
206
)
Electrical Wiring or Panel Upgrade

Serving East Islip, NY and surrounding areas

Approved

In business since 1994

Free estimates

Emergency services offered

"Tom is excellent. I had him install three ceiling fans in my vacation home two years ago and the work was perfect. He pays attention to detail and the house is spotless when he leaves. This time I upgraded the electrical work in this home. Tom added outlets, repaired ballasts, replaced outdoor outlet covers and added GFI outlets as needed. I also requested outlets into the living room floor and this was done perfectly. Tom noted what electrical work was necessary and completed everything. As usual, the house was spotless."
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+29

Response time2 days
Recommended by98%of homeowners
Avatar for Shamrock Electric Co Inc
Shamrock Electric Co Inc
4.9(
327
)
Electrical Wiring or Panel Upgrade

Serving East Islip, NY and surrounding areas

Approved

Super Service Award Winner

In business since 1992

Free estimates

Emergency services offered

"This summer my wife and I put an addition on our home. We used Shamrock Electric for the electrical portion of the job, and we are so glad we did. From the fist time we spoke and throughout the entirety of the job, Mike was always a pleasure to deal with. Mike took the time to listen to what we wanted and how we would be using the new space that we were building. He offered great suggestions and shared Insight from his experience on how to best achieve what we were trying to accomplish. He suggested electric baseboard heat for the new bathroom that ended up being a great money saving alternative to running an extra loop of plumbing in the foundation. We had some delays in the job due to other parts of the construction process, but Mike was always able to adjust his schedule and get to us for the next step when we needed him. That was a huge relief which we appreciated greatly. With all the crews of workers that we had throughout home over the few months the project took, Mike really left the most lasting impression. That’s why we are taking the time to write this review, he made us feel like our job was important to him. All of his work came out great, the recessed lighting, sub-panel, fans, fixtures, HVAC wiring, security lights and even future circuits for landscape lighting all work well and look clean and neat. We would whole heartedly recommend Shamrock Electric, and if we need any more electrical work will will certainly be reaching out to them again."
Electrical Project
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+5

Response time6 hrs
2 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for BQ Electric Inc
BQ Electric Inc
4.8(
425
)
Electrical Wiring or Panel Upgrade

Serving East Islip, NY and surrounding areas

Approved

In business since 2013

Free estimates

Emergency services offered

"Excellent work by Joe D. and Jorge C. on a recent home renovation. 80% of the old light fixtures were swapped for new ones. The guys arrived at the home within the time window quoted. They installed the new light fixtures carefully and in a reasonable amount of time. Many were ceiling fixtures, requiring ladders to complete the job. The ladders were placed safely and respectful of the recently painted walls and ceilings. The completed job was absolutely outstanding! Major props to Joe and Jorge for doing a phenomenal job! I will definitely call on BQ Electric again for any future electrical work."
2 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for Big Ant Electric, Inc.
Big Ant Electric, Inc.
4.5(
40
)
Electrical Wiring or Panel Upgrade

Serving East Islip, NY and surrounding areas

Approved

In business since 2000

Free estimates

Emergency services offered

"Came to my house the same day and completed the job. Mike the electrician was a nice guy and did a good job. $200 the first hour and $100 each additional hour. Changed existing ceiling fan, switches and outlets. I already had the parts, took 3+ hours, cost almost $500 with tax. Not sure if this is standard. I called them after another electrician who was supposed to come that day canceled."
Response time8 hrs
Response rate100%
Recommended by74%of homeowners
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FAQs for electrical wiring or panel upgrade projects in East Islip, NY

Yes, a licensed electrician is essential for this project. Running an electrical service from the road to your house involves connecting to utility power lines, complying with national and local electrical codes, and safely handling high-voltage systems. 

Licensed professionals understand proper wire sizing, grounding requirements, and voltage drop calculations needed for safe installation. Most jurisdictions require permits and inspections that only certified professionals can obtain. The safety risks and potential for property damage make this project inappropriate for DIY attempts.

Overhead installations are less expensive than underground options. For a 1000-foot run, overhead service costs between $8,000 and $15,000, while underground service ranges from $10,000 to $25,000. 

Overhead lines require less labor and fewer materials since they don't need trenching or conduit. However, underground lines offer better protection from weather events and aesthetic benefits. Your decision should balance your budget constraints with long-term reliability and visual preferences.

You might need to upgrade your electrical panel depending on your power requirements. If your existing panel cannot handle the additional load from the extended service, upgrading to a 200-amp service (costing $750 to $2,000) may be necessary. 

A licensed electrician can evaluate your current system and determine if an upgrade is required. Factors include what you'll be powering at the end of the line, existing electrical demand, and whether voltage drop over the distance will affect performance.

Running electric service from the road to a house requires electrical permits from your local building department, costing between $500 and $2,000 depending on your location. You may also need excavation permits for trenching work if installing an underground service. Your utility company will have its own application process for connecting to its grid. A licensed electrical contractor can handle all the necessary permit applications as part of their service, ensuring your installation meets all local code requirements.

The East Islip, NY homeowners’ guide to electrical wiring or panel upgrades

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