J Casillas Electric
Company Overview
For over five decades, we have been illuminating homes and businesses in El Cajon, CA. J. Casillas Electric is a reliable choice for all your electrical contracting needs.
From new construction wiring to post-build installations of lights and outlets, we cover all your electrical needs. No matter the size of your project, we can help power your kitchen remodel or bathroom upgrade.
We specialize in relocating breaker panels and updating wiring to boost safety and adhere to California regulations.
Serving San Diego for over three generations, we are your go-to electrical contractors for both residential and commercial needs.
J. Casillas Electric, Inc. is recognized as the top choice for electrical service and repair in San Diego. Our team of qualified electricians guarantees exceptional service and craftsmanship.
Our A+ rating with the Better Business Bureau is proof of our unwavering commitment to customer service.
Business Services
- Circuit breaker installation
- Circuit breaker repair
- Doorbell installation
- Doorbell repair
- Electric inspection
- Electric installation or replacement
- Electric panel installation
- Electric panel repair
- Electric repair
- Wire installation
- Wire repair
- Electric vehicle charging station installation
- Generator installation
- Light fixture installation
- Light fixture repair
- Outdoor lighting installation
- Outlet installation
- Outlet repair
Business Location & Hours
Mon: | 7:00 AM - 5:00 PM |
Tue: | 7:00 AM - 5:00 PM |
Wed: | 7:00 AM - 5:00 PM |
Thu: | 7:00 AM - 5:00 PM |
Fri: | 7:00 AM - 5:00 PM |
Sat: | Closed |
Sun: | Closed |
Recommended Customer Reviews

Once again Miguel was assigned to my renovation project. I have to say I'm very pleased with Miguel's professionalism & his expertise. His work is immaculate and pristine. All of my electrical installs were handled skillfully and easily. I appreciate and thank Miguel for his excellent service.

I requested electric work from J Casillas Electric. They were very engaged in ensuring that I understood what my electrical problems were! Very honest and professional service!!

These guys are top notch all the way! They responded to me immediately, promptly took care of our electrical issues (there was more than one), came prepared and showed up on time, using all safety precautions during COVID (which made me feel safe).
Their billing was simple and I could take care of it online, zero contact.
Communication is key to me and they were very communicative throughout the process.
Very friendly and kind service.
Highly recommended!!!

Great service and value for the quality work done! Appreciate the flexibility with scheduling the appointment and friendliness of the installation agent.

Nice work. Reasonable estimate, job completed on time and on budget, excellent communication with courteous employees.

J Casillas Electric was responsive, trustworthy, and communicative. I highly recommend this company and would use them again. Excellent service.

I had them install 2 ceiling fans. They were on time, professional, capable. The fans look great. Great value for the labor too.

Excellent work. They were very efficient and reasonably priced with a fast responding team. Highly recommend to all my friends and family. Thank you !!

Had them come out to correct about 3 weeks ago to check 240 v line for my kitchen range. Sergio the lead electrician can sell you anything even if you do 't need it. My 240v line sparked due to sloppy workmanship when we had our kitchen renovated 10 yrs ago. I was told by Sergio, ""Reason the line sparked is because, I have aluminum wires. I can repair this but, it will spark again due to the aluminum and breaker box needs to be fixed and I will make it right."" Since, I am a homeowner who appeared to be eager to have someone do the job, I asked for a quote , price of material and labor. Hours later, had a written quote for $1,350.00 total cost with a listing of approx 10 RMC conduit and for the work to begin in 2 days. Called Joe and asked for explanation of scope and conduit use or have Sergio talk to me for clarification of cost and material of the project. My thinking cap was in overdrive because, I have doubts about the price and scope of work. Joe said to me, ""I will have Sergio give you a call."" Waited for a whole work day for a phone call and clarification... never got any feedback. During the time while I was waiting for some feedback, called my buddy who happened to be an electrician. Explained to him verbatim what Sergio told me about having aluminum on my electrical lines. Here is what we found: my electrician buddy laughs and explained to me that...YES you have aluminum wire but, it's just ground wire. Your line is copper and He's charging you this much just to fix connection? All you need is the right size of twist cap, electrical tape, and we'll get a few items to seal this tight. ""The Real Problem is the bad connection and small twist cap so, it created a spark. Cancel that work request and DON'T hire those guys. They are ripping you off with their BS."" So, I did cancel the work through email to ensure Joe my intent at this point.
Results: went to Dixieline, got #6 gauge twist cap, a roll of electrical and special tape for wires and repaired line in 1-2 hours. MY COST: $16.00 with my Military discount.
Told my neighbor about what happened and he took note.
Not all homeowners are naive or gullible. Some knows how to do homework and lucky me... I have Good Friends.
I appreciate their time (J Casillas) and effort to respond to my needs; however, I felt that I was taken advantaged of because I showed them I was eager and willing to have someone do the job asap.
PS: Did not even have to use a conduit to fix my electrical issue.

Joe was very responsive, reasonably priced and his team showed up right on time. We had a very fragile and rather expensive ceiling fixture that needed to be taken down prior to our move. His men were very careful, they came with all the right equipment and wore masks! I'd use them again and again.