Kostos Electric

“Great quality work and timely.”

Great quality work and timely. He explained his thought process and planning throughout the job to help me understand how everything works - adding several outlets and a light switch to a new room. Would definitely want to have Kostos Electric back if I ever needed more work done.

David Beam

Jan 2026

“Nate was on time, professional, and took care of my electrical issue in minutes.”

Nate was on time, professional, and took care of my electrical issue in minutes! Very happy with my experience.

Joseph Packham

Jan 2026

“I reached out to Kostos Electric for an issue installing a GFCI.”

I reached out to Kostos Electric for an issue installing a GFCI. Nate took the time to call me back and talk me through the issue which allowed me to fix it myself. I will definitely be happy to use them for any upcoming electrical needs.

Jacob Koontz

Jan 2026

“Nate was very friendly and seemed to enjoy explaining things to me as he worked, which I really appreciated/enjoyed.”

Nate was very friendly and seemed to enjoy explaining things to me as he worked, which I really appreciated/enjoyed. He installed an exterior outlet with a dedicated circuit for what I feel was a reasonable price. He seems like a genuinely good person, and I will offer him more work in the future.

Don Wingler

Dec 2025

“Kostos Electric was phenomenal to work with.”

Kostos Electric was phenomenal to work with. We needed emergency service on a Saturday and they were over within 30 minutes. After fixing the issue, Kostos also subsequently installed outdoor outlets, new outdoor lighting and re-wired our garage for an electric car. Great communication, prompt service and incredibly helpful, cannot recommend Kostos Electric enough.

Chris Blain

Dec 2025

“Nate did an awesome job.”

Nate did an awesome job! The work was extremely high-quality, and we are very happy with the end result! Would highly recommend

Dan McGrew

Nov 2025

“We had Kostos out to install some exterior electrical connections for ComEd to hook up to.”

We had Kostos out to install some exterior electrical connections for ComEd to hook up to. We found them easy to work with and provided a fair price. And we had no issues when ComEd came to do their work, so Kostos knew what to do.

George Yates

Nov 2025

“Nate Kostos completely replaced the electrical in my 1 bedroom coop.”

Nate Kostos completely replaced the electrical in my 1 bedroom coop. My building is over 100 years old and my unit’s wiring was in awful condition before he started. Most of the wiring was original - what little had been replaced was done poorly - some with lamp wire, a fire hazard! The old circuit box had been installed upside down and all my electrical was on one circuit! So it all had to be redone. Nate removed all the 100 year old wiring, outlets, switches, and breaker box. New breaker box probably triples number of circuits. He had to run two lengths of conduit from the box up three stories to the apartment to carry the new wire plus dedicated lines for kitchen appliances, AC, etc. He did a far superior job mounting that exterior conduit than most of my neighbors - he pointed out places where conduit to other units was rickety. He replaced all the existing outlets and switches. He added many new outlets (probably tripling what had been there). Added switches, including dimmers. Added a dedicated hard wired smoke alarm. Removed and replaced all the light fixtures. Nate was easy to work with - he is good-natured and answered all my questions (mostly because I was curious about how it all worked). At one point work had to stop for about 6 weeks (issue on my end not his) and then resume. He was very patient. My Coop Board requires pre-approval of all credentials and they are super picky - they went out of their way to compliment the quality of his work. No contractor has X-ray vision - in any work of this nature they sometimes encounter unknown things outside the scope of the project. It happened in this case, the issue made sense, and additional work was added - but even then, the cost for the overall project was still far less than the next lowest quote. I would definitely recommend him and would use him again.

ming60640

Oct 2025

“Would 100% recommend Kostos and Nate for any electrical work you need.”

Would 100% recommend Kostos and Nate for any electrical work you need. He was efficient, great to talk to, and competitive pricing wise. No hesitation to have him out again.

Joseph Cerreta

Oct 2025

“Nate did an excellent job replacing the old cloth-insulated wiring, outlets, and switches in my apartment.”

Nate did an excellent job replacing the old cloth-insulated wiring, outlets, and switches in my apartment. He also successfully converted several pull-chain light fixtures to be switch-activated. I was very impressed by his professionalism and responsiveness, and he took the time to clearly explain all the work being done. The service was high quality and provided at a reasonable price.

Gene

Oct 2025

“Kostas was friendly, fast, and efficient.”

Kostas was friendly, fast, and efficient. His prices are very fair. He also shared great insight about our condo. We will definitely be contacting him for any and all future repairs and projects!

Geoffrey Needleman

Oct 2025

“Nate is no-nonsense professional.”

Nate is no-nonsense professional. He knows his stuff, and he gets it done honestly and in a reasonable amount of time. We had him install a couple of electrical outlets, and it was no big deal for him. Everything works perfectly, and the price was right. I highly recommend Kostas Electric for any type of electrical work that you may need done.

Sam H.

Sep 2025