
Serving Diablo, CA and surrounding areas
Approved
Super Service Award Winner
In business since 2024
Free estimates
Emergency services offered
"Did a great job installing outlet for electric car charger."





+41


Serving Diablo, CA and surrounding areas
Approved
Super Service Award Winner
In business since 2024
Free estimates
Emergency services offered
"Did a great job installing outlet for electric car charger."





+41

Serving Diablo, CA and surrounding areas
Approved
Super Service Award Winner
Free estimates
Emergency services offered
Customers say: True professional
"I am extremely happy to hire IC Electric to complete the work for replacing main breaker (100 amp) and installing new dedicated circuit for refrigerator. Work is completed timely and professionally. Ivan is very helpful in explianing all the details of work, that help me to get confidience with his capacity and expertise for doing the job. Hignly recommend to hiring him for any electrical job, large or small."





+3

Serving Diablo, CA and surrounding areas
Approved
Super Service Award Winner
In business since 2021
Free estimates
Warranties offered
"I hired OSJ Electric to handle the electrical wiring for my swim spa, and I couldn’t be more impressed with their work. From start to finish, the team was professional, knowledgeable, and incredibly efficient, especially Ossamu. First and foremost, the pricing was very fair. They provided a detailed estimate upfront and stuck to it, with no surprise charges or hidden fees. It was refreshing to work with a company that is transparent about costs and delivers great value for the work performed. The expertise displayed was top-notch. The electricians were clearly experienced and knew exactly what they were doing. They handled the swim spa installation with ease, ensuring that everything was wired safely and up to code. It was clear they took pride in their work and were committed to delivering a high-quality job. What really stood out, though, was their follow-up. After the job was completed, they checked in to make sure everything was functioning correctly and answered any additional questions I had. This level of customer care is rare to find, and it made me feel confident in my decision to choose OSJ Electric. Overall, I highly recommend OSJ Electric for any electrical needs. Their fair pricing, expert knowledge, and thorough follow-up truly set them apart from other contractors I’ve worked with."





+9

Serving Diablo, CA and surrounding areas
Approved
In business since 1987
Free estimates
Emergency services offered
"Michael showed up on time and even called me as he was on his way to my home which I appreciated. He not only fixed my issue buy also explained to me how things work electrically. I would hire them again for any electrical issues and hope I get Michael again. Your company is lucky to have him."
Serving Diablo, CA and surrounding areas
Approved
In business since 1990
Free estimates
Emergency services offered
*Residential service work. \n*2 year residential apprenticeship program \n*4 year commercial and industrial apprenticeship program.\n*45 years and active member of International Brotherhood of Electrical Workers Union of America. \n*Sole proprietor 32 years. \n\n





+14

Serving Diablo, CA and surrounding areas
Approved
In business since 1990
Free estimates
Emergency services offered
"Joe is hard working, diligent, and honest. I hired him 1) to put up an antenna for local tv service and 2) to fix poor wifi signals. TV was converted from cable rapidly using leftover wires. Saving $ not paying for cable and streaming off wifi. Great signal strength! WiFi was harder. He worked with ATT to determine my new iMac was sucking signals. He installed a more powerful router that solved wifi issues when iMac is off. Now I have to work with Apple to figure out how to manage the computer searching. I would not hesitate to call Joe back again. He is an excellent technician and a fine person. He is pretty busy, so sometimes it takes a few days before he can come out, but he is worth the wait."





+9
Serving Diablo, CA and surrounding areas
Approved
In business since 1980
Free estimates
Credit card accepted
We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.
Serving Diablo, CA and surrounding areas
In business since 1982
Free estimates
"He fixed it. Quickly, at a reasonable rate."

Serving Diablo, CA and surrounding areas
In business since 2003
Free estimates
Emergency services offered
"The team of four was very professional and performed an excellent job in a record period of time. Just one day to take the old furnace away, replace all the old boots and duct work and install the new furnace. They paid a lot of attention not to damage or dirty the floor/carpet. I am very happy with their performance. They may not be the cheapest on the block but it was all worthed and you only have to do that once in your lifetime."





+42

Serving Diablo, CA and surrounding areas
In business since 2007
Free estimates
Emergency services offered
"Creig has provided services for us for years. Whatever needs doing on a house, he can and does do. He is a skilled electrician, plumber, contractor, etc. He has fixed garage doors, installed new garage door openers, installed lighting indoors and outside, fixed sliding glass doors, fixed plumbing leaks, etc. He comes immediately in case of an emergency to do emergency repairs. He is always very professional, extremely skilled and a real gem. He cleans up thoroughly before leaving. I can't praise him highly enough. He is honest and will tell you truthfully what can/should be done or what can wait. His charges are very reasonable. His work is excellent in every respect.
"
From average costs to expert advice, get all the answers you need to get your job done.

Budget for the cost to replace a light switch based on factors such as switch type, project complexity, hiring a professional electrician, and more.

Estimate the cost to rewire a house based on the key factors. Our guide covers different wire types, permits, and ways to save on electrical system upgrades.

Unsure who can fix a generator? Learn whether to hire a generator technician or electrician and what affects repair costs—start your search now.

Wondering who can install recessed lighting? See who to hire, other pro options, steps, and costs to plan your project confidently.

Who can run ethernet cable through walls? Learn whether to hire an electrician or general contractor, what to expect, and how pros get it done.

Learn who to call for electrical problems—electrician or power company—and when to get help. See pro steps, safety tips, and hiring guidance.