Thoma Electric
Company Overview
Visit our site for further information. Clarence Thoma founded Thoma Electric in 1962. Bill and Ed, his sons, were raised within the company. William graduated with an Electrical Engineering degree from Cal Poly. Edward pursued a BS in Industrial Technology at Cal Poly. The brothers acquired the company from their parents in 1989. Since 1981, we have included Electrical Engineering in our services, witnessing consistent growth. We usually employ between 60 and 70 staff, reaching a high of 150 during a five-story hospital project for Marian Hospital in Santa Maria in 2011. Thoma Electric encompasses divisions for Electrical Engineering, Major Electrical Construction, Small Electrical Construction, and Electrical Service. “Important projects come in various sizes”. Thoma Electric can manage nearly any project from inception to completion, covering design and construction. We provide Data/Comm services, copper and fiber work, solar installations, and emergency standby power systems. I completed my BS in Industrial Technology at Cal Poly San Luis Obispo in 1983. From 1984 to 1986, I worked at National Semiconductor as a Manufacturing Engineer, focusing on wafer fabrication. I returned to SLO in 1986 to take on the roles of Estimator and Project Manager at Thoma Electric. My role has evolved to include Company Safety Director and Manager of the Service Plus division, which handles small to medium electrical projects. Our team resolves electrical problems and manages small time and material jobs for residential and commercial clients. For urgent situations, we are available for after-hours emergency electrical services.
Business Services
- Electric inspection
- Electric repair
- Outlet repair
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

Thoma installed 4 ceiling fans on our property. I needed fan boxes installed and fans and assembled. I called and they sent someone out within 2 days. The service was handled by Lonnie, who is without a doubt the nicest guy you will ever meet. He was very punctual and accommodating for all the requirements to complete the job. If there was an issue he was very upfront and offered good solutions. I can't say enough good things about him and his work. I would call Thoma again in a second for any other electrical work.

I had the recent opportunity of having Thoma Electric come out and do some work at my house. I had two projects and an issue to deal with. The Electrician's name that came out was Clark. Very knowledgeable and detailed. He had to troubleshoot an issue with a light circuit. We got that finished and he worked up a quote for a new garage circuit and outdoor lighting switch solution for my patio.
He came back completed both jobs to satisfaction. I am very happy with the service and response from Thoma in jumping on this the first time I reached out to them.
Thank you to Clark and Thoma Electric for helping me out.
Cheers!

Excellent work and less expensive than their competitors. Their staff is professional, knowledgeable and pleasant. They also coordinated the necessary permit paperwork with the City. We will call them again!

Outstanding service! I had a problem with my electrical box at home, called these guys and the next morning they are at my door fixing my problem. I highly recommend them based on my experience and high touch service. Thanks-

From inquiry to completion, the team at Thoma Electric is outstanding. Thoma has a bad misconception in the community by those that think of them only doing large commercial projects when in reality they truly excel in the smaller jobs. We had originally worked with Thoma to put in some electrical outlets and wire two outside lights a few years ago. Having had a great experience we called again when a couple of plugs in our kitchen weren't working and I got a spark when removing an electrical cord. Making a convenient appointment was seamless and the electrician dispatched couldn't have been more helpful or competent. He explained why the outlets weren't working, identified another issue that he promptly fixed and then recommended that we purchase a new toaster oven, explaining that while we couldn't see the problem, it had a defective electrical cord that could potentially lead to problems down the road. The good news is -- I never liked that toaster oven and I'm happy to purchase another! Whether for new commercial developments, or fixing an electrical outlet in your kitchen, Thoma Electric gets my vote for being the best.

David was incredibly knowledgable, efficient, and swift in diagnosing and solving my electrical problem (hidden breaker). Would definitely recommend.

What a great company!
I needed to install Nema 14-50 for my new Tesla, a few other companies, gave me an estimate over $2000 and made it seems like so complicated due to location of the panel... Thoma Electric made it really simple and stress less, an electrician came to my house at 8:00 am finished the job in couple hours! It was just amazing to watch him working, climbing through the attic bringing thick wire to the garage. So professional, talented and on top of that I asked to fix my indoor outlets and he gladly did and no extra charge! The original estimate was $1300 but today I got the bill from Thoma Electric and it's only $600!!!
Such a honest and wonderful people!
Two thumbs up Thoma Electric!!! I also spoke to Tesla representative and they are definitely going to refer Thoma Electric to other Tesla customers in our community. My #1 electrical company! Thank you so much Thoma Electric!!!! Will be back

We have built a house, done lots of remodels and recently had need of an electrician for something no one could figure out. We were very impressed by the professionalism, thoroughness, patience to find the problem and explain to us what was needed. Loren was great!

For the past two and a half years Thoma Electric has competed both day to day maintenance and complex in-depth remodel/upgrade electrical projects for our office building complex. Professional service, quality work, timely/responsive, all at a fair price are hallmarks of Thoma Electric.
Jennifer McIntyre
Facilities, Sunrun

Fast. Easy. Perfect job installing an outlet. Very professional! I called in and John came out the next day with a bid. Even during holidays I was quickly scheduled and electrician was careful to wipe his feet every time he came in. This is the second time they've helped us out --- last time it was a tricky fan installation. Pleased? Indeed. Thanks so much!