OSJ Electric
Company Overview
At OSJ Electric, we are prepared to deliver top-notch electrical services. We focus on every detail, no matter how small, ensuring the job is completed flawlessly. Our commitment to our clients is strong; we approach each project as if it were our own home. We are adaptable, highly proficient, and will exceed your expectations to meet your requirements. Based in Lafayette, CA, we proudly serve all of Contra Costa County; reach out to us for more information.
Business Services
- Circuit breaker installation
- Circuit breaker repair
- Electric inspection
- Electric installation or replacement
- Electric panel installation
- Electric panel repair
- Electric repair
- Wire installation
- Wire repair
- Electric vehicle charging station installation
- Electric vehicle charging station repair
- Generator installation
- Generator repair
- Light fixture installation
- Outlet installation
Business Location & Hours
Mon: | 8:00 AM - 5:00 PM |
Tue: | 8:00 AM - 5:00 PM |
Wed: | 8:00 AM - 5:00 PM |
Thu: | 8:00 AM - 5:00 PM |
Fri: | 8:00 AM - 5:00 PM |
Sat: | Closed |
Sun: | Closed |
Recommended Customer Reviews

After soliciting bids from three contractors, we hired OSJ to upgrade our main panel from 100 to 200 amps, and replace our subpanel in the garage while they were at it. This will allow us to switch more appliances from gas to electric when we're ready. Ossamu was the easiest to work with, and was great at explaining options. He handled all the PG&E stuff easily, and I have no complaints whatsoever about the work he and his crew completed. I will not hesitate to work with OSJ again.

We recently had our house's electrical system completely redone by OSJ Electric. Ossamu and his entire crew were professional, courteous, and highly efficient. They managed any additional requests we had throughout the process with great skill. Just last week, we needed to upgrade two motion sensor flood lights, and once again, Ossamu and his team were prompt and effective, making the entire process seamless. Their pricing is fair, and OSJ Electric has promptly addressed the very few issues that arose. We highly recommend OSJ Electric.

Did a panel upgrade (from 200 to 400 amps) and went above and beyond given some challenges dealing with PG&E. Also did 2 car chargers. Excellent work, very responsive, easy to work with.

Ossamu, with OSJ Electric, knows his craft; definitely made the right choice in hiring him to install our Enphase batteries. He carefully planned and executed the installation, despite difficulties with a pre-existing gateway. Greatly appreciated his patience and professionalism in working with Enphase to resolve the technical glitch. Thanks to Ossamu, we're now able to bank our excess production for use during peak hours. Will certainly employ his services for future solar/electrical needs.

Ossamu was incredibly responsive and helpful when we really needed it. Living in an older house we have worked with many electricians over the years and he is definitely one of the best.

testing Power Failure Backup
Fair price
Flexible
On time
understanding of our needs

Work on the backup battery system.
It was installed few years back and we wanted to make sure it was working.
Ossamu's service was exceptional. He is thorough with the work, very pleasant to work, also reasonable in his rates.
There were issues with connections. He was able to troubleshoot and fix the problem.
He patiently explained the functioning of the system and I was able to video it for future reference.
Very thankful to have found Ossamu and will be using him for our future projects.

Called OSJ electric to help replace a defunct outlet under my kitchen sink as well as add a new outlet in the garage where they was not one.
They were extremely responsive and was able to book them for the next day.
Ossamu was incredibly friendly and punctual. He completed the job in a timely manner and everything works great.
10/10 would highly recommend for anyone in need of an electrician.

They are great! I hired Ossamu and team to install some recessed lighting. They came out and gave an estimate which was reasonable (mid-range), were willing to wear masks (my mom has had multiple strokes), and worked with me to get the kind of lights I wanted (a non-standard type that took a little longer to order). Lastly, they installed cool dimmers which I hadn't even requested. They were done in a day. Overall really pleasant to work with and great communicators!

I had asked Ossamu to give me estimate for changing two different circuit breakers boxes for two of my rentals. Both houses are over 55 years old. Ossamu did some electrical troubleshooting for me in one of the two places. Ossamu showed up on time and he finished both projects ahead of schedule. His work attitude is great, he got lots of tools just pulling an old circuit breaker and patch up some small drywalls. Many people think it's easy but it's not that simple to pull it from an old house w tenants living inside. He got both projects done on time and he came back the next day to re-labeled all circuit breakers. I highly recommend him for any electrical troubleshooting or replacement. His price will not be the cheapest, I think it's a very fair price from an honest and hardworking small business owner. I highly recommend him to my neighbors.