Kosta came highly recommended by our realtor. From day 1, I got a great vibes from him. Just all around cool and down to earth guy. We booked him immediately because he was so upfront about his prices. His prices are also very reasonable! Kosta knew we were on a time crunch and he worked fast, diligent and smart. I gave him some direction and he asked questions, but he also led with his expertise for the times I wasn't sure. Our recess lights turned out beautiful!! He also changed out our main electric panel, which turned out amazing. I also asked him to do a few other handy man things and even tho it was last minute requests, he was able to get it all done for us. It was very impressive. I also want to add that he is great at communication (phone calls and texts). He is respectful, courteous, professional...and all around good guy. I will absolutely recommend him to others. read more

Nikola Tesla Electric - Recess lighting in dining room - Electricians Near Me - Pleasant Hill, California

We had an excellent experience with Kosta of Nikola Tesla Electric, and we were also very appreciative that he was able to come out to our house in the evening. It was a relatively small problem--a plug prong stuck in an outlet, but we didn't feel comfortable letting it go, and he kindly fit us in quickly and took care of the problem. He's professional, prompt, efficient, and obviously very knowledgeable. Also, he's a delightful person. Highly recommended. read more

Fairly priced, knowledgeable, quick, he turned an outdated single outlet into a double and added a 30 amp to our breaker box as well as installed and 4 prong dryer plugin for us with no problem. He cleaned up after himself and was very kind read more

Hi fellow Yelpers! I have been dealing with Kosta from NT Electric since 2016, firstly with my home in the Dogpatch SF, El Cerrito and now Walnut Creek. Kosta is punctual in emergency and in non emergency situations. Kostas problem solving skills and attention to detail is something you don't see of often with single serving tradesman. He is a keeper! Would recommend to anyone. Thanks Kosta! read more

I had a very negative experience with Nikola Tesla Electric. I contact them for an electrical inspection for insurance purposes. At the time I did not personally know that there are "certified electrical inspectors" and that electricians such as Tesla electric are not certified nor qualified to do home inspections for insurance purposes. Kostas certainly knew this or at least should have. Kostas was in the home for about 10 minutes during which he identified knob and tube wiring in the attic. He then proceeded to fill out his job form saying that the home was completely unsafe and needed a complete re-wiring for a cost of $20,000.00 He charged me $350.00 for this 30 minute service. However I felt he was wrong. I had a second electrician coming the same morning and he contradicted Kostas 100% saying there is nothing wrong with the knob and tube. He also recommended a "certified electrical inspector" to come and inspect the home and provide me with the document I needed. The inspector also contradicted Kostas of Tesla Electric. He documented that the knob and tube was safe and in good working order. He also said that the house had already been re-wired and that the home had 100% modern wiring with the exception of the knob and tube in the attic. The home needed nothing improved with the exception of a panel added to the breaker box ( $250.00 total cost) I contacted Tesla Electric with this information suggesting he refund me my payment since he got it so wrong. Kostas refused and insisted that the house was a fire hazard. In my opinion Tesla Electric is not not an honest business. read more

Kosta was fabulous! He immediately responded to my inquiry about landscape lighting and he arrived soon after and did the complete job in one day. We appreciated Kosta's clarity about the job issues and his excellent communication and problem-solving. He ranks in the A+ category. Hire him! read more

Short Version: If you need an electrician and you don't reach out to Kosta at Nikola Telsa Electric, you're messing up BIG TIME. This guy's the BEST. Longer Version: I'm always on the look-out for service experts who tell me what they're going to do and then do it. I want honest, dependable, experience. When I find them, I'll put their sticker on the appropriate panel or door in my home and always call them first. Didn't have an electrician, so I knew I was in for trouble when the power went out in half my house. During the coronapocalypse, I'd gone into my office, went to plug in my laptop for a Zoom meeting, and I heard a "FFZZZT!" just before the power cycled. TV went out in the living room; lights, clocks, routers & printer all cycled in the other rooms. Odd, but everything came back on. I poked around, looked for the cause, couldn't find anything, figured it was a short in the extension cord for the laptop plug, so I changed that out. Had my Zoom meeting, joined the bride for an evening movie, and everything seemed to be OK. A couple of hours later, I went back into the office. Flipped on the light, and the same thing happened with two notable exceptions: First there was no "FFZZZT!" Second, the power didn't cycle; it just died. Half the house, completely dark. It's the middle of the night, and tomorrow's a work day. I start contacting electricians right now. I'm not waiting for first light; I want my email, text, phone call to be the first thing they see when they start up in the AM. Not sure where in the list Kosta was, but he definitely was in the top 10. In the morning, the first responses I get are "Not in your area," "I'm on vacation," and "I can get to you six weeks from now." What part of "emergency" is hard? Kosta got it. He called & texted, and we connected quickly. He had a full day planned, but he understood "emergency" and made a special stop at my place. Before he started, he made sure I understood the meaning of "troubleshooting" and that he wasn't making any promises. I get it: I could be in deep doo-doo here. I followed Kosta around and watched how he methodically checked out one thing after another. He started at the PG&E panel at my house's point-of-entry; he moved to the breaker panel in the garage; he went into the office where I'd heard the "FFZZZT!" He checked plugs, switches, extension cords, etc. Nothing. Power was everywhere it was supposed to be except in the places it wasn't. No clear indication of what may have gone wrong. Kosta's about ready to leave -- he had another appointment, after all -- when he decided to check an outlet in the room that shares a common wall with the office. Juice was on in that room, but Kosta figured he could poke around. I figure his spider-sense got tingling. Sure enough! There is was. He checked a plug & no joy. He pulled the cover off & found the short. That was the "FFZZZT!" I'd heard. Weird that the breaker didn't switch off, but that wouldn't've helped ID the problem anyway. Within five minutes, the outlet was replaced, the power restored, and Kosta was on his way. As he was leaving, one of my neighbors asked if he could take a look at a plug she was having difficulties with, and he went right into her home -- no appointment necessary -- and fixed it for her. No charge! What an excellent experience. I made sure to get Kosta's sticker on my breaker panel door before he left. What a CHAMP! read more

Great guy. Honest & experienced. He explained my options to assist in the best outcome for me. Used his services 3 times... consistent & prompt. Definitely recommend his services. read more

Kosta was great! We needed some work done on a house we had just moved into and he responded directly. He came out, gave us a quote, explained what and why. We loved his personable character and would definitely use him for any future work! read more

Very, very very friendly. Charged $150 for installing a fuse for my heat pump. Non emergency.

Kosta was fantastic. We've asked several electricians over the last ten years or so to help figure out why we have flickering in our house. We've spent over $20K on various electrical work (not just the flickering, but it's always on oiur list). I asked Kosta to just come and address this problem and then provide me with an estimate. Kosta and his father (both electricians) came to our house on the scheduled day (about a week later). They spent about 1 1/2 hours testing everything - I mean everything. Afterwards, they told me that they were 85% sure that the problem was the PG&E hookup from the street and that rather than trying to fix/replace other electrical system components that would cost us thousands of dollars and might not solve the issue, we should first contact PG&E because it's free. They only charged us $250 for their time. PG&E came and tested and said, yep, it's the PG&E hookup. We are now flicker-free for the first time in 12 years of owning our house and entirely because of Kosta. I'll definitely use him for all electrical work in the future. BTW, this was the second visit from Kosta. The first visit a few months before this one I asked him to help me solve a problem with my 240V outdoor socket because I got a Tesla. He came and tested it on his way to a job early one morning and fixed the issue within about 10 minutes and wouldn't charge us. As good of service as I've ever had. read more

After explaining that he wasn't a lighting expert, the Tesla guy was in a big hurry to leave upon arrival. He not only did not fix the problem of my flickering pendant lights, but he didn't diagnose the problem correctly either - basically blaming the bulbs, which he said may not be dimmable (they were). While he checked the transformer and wiring in the fixture, he never bothered to look at the light switch box for any problem there. Then he charged me $160 for the visit charge, which I would not have agreed to if I had known how little he knew about lighting. I will never use this company again. read more

Finally, I found a great electrician. Costa is the guy. He's responsive, fair in his pricing. And he knows what he is doing. After going thru countless contractors over the years its just so refreshing to come across a hardworking guy providing excellent service at a fair price. I only wish he had twins brothers that could do plumbing, hvac, etc. Thanks again Costa. read more

Great service, pleasant to work with, knowledgeable, and reasonably priced. Can't ask for much more than that!

We have used them twice. The first time was fantastic and easy. The second time was this past week where we had purchased a NEST and my husband tried to install without success. We called them and they said they could wire it. Well, it was wired and did turn on, however, it was wired incorrectly and instead of AC, our house was being heated to 89 degrees for 4 days (looking forward to that bill). When we called them on Sunday they said they couldn't help and we should call NEST, which we did. NEST was fantastic and after about an hour on the phone with them, my husband and their technician were able to correct the issue (wired wrong). My husband called to give them a chance to rectify the issue and they said you signed the contract (ie approved) so we will not provide a refund. I understand they have a business to run, but I find it extremely disheartening that when we called because it wasn't working they a) did not offer to come and fix it and b) when someone else had to fix it, they would not offer any sort of refund. Sad to say we will not be using them again. I did give them 3 stars because they were so great the first time we used them. read more

So appreciative of being able to find someone who could come out on a Saturday within an hour to make the home safe again. We had a power surge that caused a plug to fry leaving a charred mess of electric in the electrical outlet. This knocked out power in two walls of one bedroom and the entire second bedroom. Once we realized this was beyond our ability to replace on our own we had to find someone on a Saturday. These guys were great, arrived in an hour and were VERY thorough. They replaced and repaired the old outlet, checked the main circuit box and replaced the main circuit for that part of the house, and did it all quickly and with a great attitude. We were very happy with the final cost, especially considering it was an emergency on a Saturday, the he was very cheerful and happy. We highly recommend these guys. read more

George D. is an awesome electrician. He came in to my store and repaired a horrible mess within hours, into the night on top of that! They are a 24 hour on call business, and are wonderful to work with. I will always think of them first from now on. read more

Great experience! We used Kosta twice so far, once for installation of several outlets and once to replace our main panel. Both times Kosta was on time, professional and within budget. Highly recommend. read more

We needed an electrician to fix some problems our contractors were unable to fix correctly to pass the city inspections and Kosta came over the next day after calling and got everything working properly. He was efficient and knowledgeable. Would hire them again. read more

I contacted Nikola Tessa Electric when I bought my house in Concord to have the panel upgraded, ground outlets, add/replace GFCIs and add ceiling fans. They had an opening and were able to help my husband and I out on short notice. They are trustworthy, good with communication and got the work done in a reasonable time. Their price was also fair. I have been very happy with their work and will contact them in the future for any electrical needs. read more

Very timely response on the Friday before a holiday, when we suddenly lost one phase to house due to PG&E problem. Nikola Tesla (Kosta) upgraded our 40-yr old main panel properly but due to PG&E bad info/advice, they could not hook power back up until city permit was issued and PG&E had to come back Saturday to fix their problem. Kosta came back on Sunday to make the adjustments required by the city (included in our price quote), we got our power back the next morning. Then a followup time & materials job was handled very well. Recommended when you need good service on short notice! read more

Costa was very fast and friendly. Super knowledgable and on time. I needed a few backyard lights removed and he recommended leaving the wiring in case I want LED lights in the future. He explained its low voltage and it won't be a safety issue. He showed me how to connect new lights and also said he can come back to attach them. Service call was $150 for one hour or less. My job took about 20 minutes. Pricey but worth it. Especially since I am not familiar with electrical work. Will recommend and will use this company again! read more

What can I say, just a really great experience with Kosta. Needed to do some major electrical work in our house (replacing the vintage wiring for all of the outlets in our 100+ year old house), and a realtor friend recommended him. Kosta come over the next day to walk through the planned project, and he walked me through all of the possible approaches and answered all of my questions. He also quoted a very reasonable rate for the week's worth of work. He and his worker dove right in the next week. While the work was unavoidably disruptive, the two of them were considerate and kept us up to date on progress. The work was fast, and we were able to coordinate seamlessly with the drywall contractor when the work was done (he doesn't do drywall and painting). Quality of the work was really good. Recommended -- I'll definitely go back to Kosta with any future electrical work. read more

Excellent service! Kosta was fast, efficient and very informative. We contacted him and he arrived in no time! Very knowledgeable. We would definitely recommend him to others. read more

Kosta was very interested in helping find the "gremlin" that had shut down all my electrical outlets in my garage. I had first called the electrician who had installed the additional outlets, but he was unable to troubleshoot the cause; and he left with me still in the dark. Kosta set an appointment for late afternoon the following day, and though he was unable to discover the cause, he did provide a solution and 1 1/2 hours later all the outlets were working and the problem solved. Thanks, Kosta! Reliable and economical. read more

NikolaTesla Electricians just replaced our attic fan. George Kosta and his assistant first did a thorough rooftop and whole-house outside inspection. Then they put in a new much quieter fan which is already working as it should. He explained many aspects of the job as we inquired. His price was reasonable. Highly recommended and a nice guy too! read more

We just purchased a new dishwasher and the old outlet under the sink was old and crusty and ready to go. I called a few electricians here on Yelp and they were either too busy or didn't get back to me in time. George answered and told me someone could come over and do the job within a half hour. I was out and said I'd call back when I got home. Well, that went exactly as planned. I wish I could remember his name but, he was very nice. He replaced that outlet along with the garbage disposal switch and outlet. He was finished in an hour and it was perfect! Now everything works perfectly and it is safe. Thank you! We will call you if we need anymore electrical work. read more

I tripped a breaker and accidentally caused power to go out for our entire house. So I called (after hours) a little freaked out about what I'd broken and how much it was going to cost me to fix. The guy who answered was so friendly and helpful! He asked me a couple of questions about what happened and then walked me through how to fix it over the phone. 5 minutes later, we have power again. :) read more

Great service. Really helped us think through our issues and showed up for us during a tough time. Stayed until they were satisfied the job was done right. Give them a chance. There is talent here! read more

Called George at 7:30pm because a breaker kept popping then I smelled burning in the panel. He showed up in less than an hour, had the breaker replaced on was on his way in 30 minuets. I tried to pay him more than the very fair after hours rate and he would not accept. Highly recommended. read more

Absolutely the best service out there. I have used them few times and they never disappointed, always quick to reply. As the owner of a local Ice Cream business it is a complete disaster to loose power to freezers especially at 8pm at on the hottest day of the year. Kosta answered straight away and arrived promptly. He was able to set up a temporary solution for the night and was back at 6am the next more to install a new part and had us up and running with in 4 hours. I highly recommend them. read more

I bought a home and needed my outlets to be converted from un-grounded (2 holes) to grounded (3 holes) so that I could plug in things like my computer, etc. George came out on a day's notice and had the job done in no time. Very fast and professional service that I highly recommend. read more

George came out around 1am to try to fix our breaker (electricity was out in like half the house and PG&E told us to find an electrician). He tried a new switch, but when it didn't work, he helped me pull out the fridge so I could get it on an extension cord, and promised to come back on Saturday. He replaced our panel for a reasonable price (but $$$, you get what you pay for), grounded the panel, and took care of the permits with the county. He was very nice through the whole process and very thorough. I will definitely call NT again if we need more electrical work. read more

this company is by far the best guys to work with had main panel go out he showed up next morning and replaced it was so nice to work with a comany that truely cares about there customers and there price was wonderful Thanks you guys saved the day read more

I am assuming that this is Nikola Tesla Electric because someone named George came to help us. So, assuming that this is the right place...I would highly receommend them. George was, as the other reveiwer noted, awesome, helpful, polite, curteous, honest and did the job. A pleasure. read more

Had a main breaker blow on a Sunday afternoon/evening. Pge told me it was my problem, even though it is located below their meter. Will save you my rant on that matter! Found George on yelp,called him and he was here in less than an hour. After assessing the situation he left to acquire the correct breaker and was back in 20 minutes. In all I had power again in less than an hour and a very reasonable bill considering it was an emergency call. George is honest,fair and explains everything up front, no surprises. We will definitely be using George again and highly recommend him. Thanks George! read more

I went through Nikola Tesla Electric a few month back in June and was very pleased with their speedy and thorough workmanship! I own a salon on Clayton and after having half of my shops power out and hearing noises from my fuse box I knew it was time to call an electrician to see what I needed to do. I was nervous because I had no idea what to expect and knew whatever the situation was that it was going to be a pretty penny!!! After calling them and leaving a message they called me back instantly and set up a time for them to check out the problem and give me an estimate. They came quickly and figured out the problem quickly. They broke down the situation to me and told me exactly what was wrong, what needs to be done and that they could do it and gave me a price. Knowing I was on a budget on fixing the situation they reassured me that it was a good price and if I wanted a second opinion I could get another estimate but I wouldn't get the same price. They were right. I didn't hesitate to call them back and move forward with them replacing my fuse box. We scheduled them to come ASAP to come in and they replaced the fuse box quickly and I haven't had a problem since. They were very kind and explained step by step what they did and they wouldn't let me clean or sweep up after them. They also let me know that if I have any problems with the fuse box again that they would come and fix it! Also they mentioned that since my fuse box was so burnt out that it might help with my AC situation so I'm hoping that it does! Meeting them and how they genuinely wanted to help me and not just make a quick buck is rare to come by. They are truly great at what they do and also great people! read more

Kosta definitely super delivered his service for us today, he professionally installed the 240V EV charging outlet in our garage, explained everything to me, the quality of work is superb! read more

I haven't decided whether to move forward with my job, by the person I talked with on the phone seemed incredibly knowledge and was extremely helpful. He was very generous with his time, walking through the project with me, identifying potential problems and solutions, and giving me estimates. I really appreciated the service. Thanks. read more

Kosta helped me out with a rental property. He alerted me of current electrical code issues, provided pricing options, and got the job done. I would highly recommend him to anyone looking for a honest electrician to do any size job. Thanks again! read more