Pro Business

Mario Castillo Electric

Long Beach Electricians
Ranked #8 in Long Beach | Grade B
4.90 (534 reviews)

Mario Castillo Electric

Local electrical service provider offering residential repairs, upgrades, and installations with a focus on clear communication and careful workmanship.

Why Homeowners Choose This Business

Customers highlight clear quotes, on-time appointments, and technicians who explain findings before work begins. Many note tidy work areas, careful routing in older walls, and fair, transparent pricing.

Service Area

Serving Long Beach neighborhoods and nearby areas, including Alamitos Beach, Belmont Shore, Bixby Knolls, Wrigley, and Signal Hill, subject to availability.


How This Business Compares

A quick local comparison based on ranking, review strength, and market visibility.
  • Has more Google review volume than many local competitors.
  • Shows strong customer satisfaction signals based on review quality and volume.

Services Covered

  Electrical Services
  Supplier
  Electrical panel upgrade
  Panel upgrades
  Circuit Breaker Replacement
  EV charger installation
  Electrical Troubleshooting
  Lighting installation
  Electrical repairs
  Outlet and switch installation
  Bathroom exhaust fan wiring
  Maintenance
  Installations
  Residential Electrician
  GFCI installation
  Repairs
  Rewiring For Remodels
  Ceiling Fan Installation
  Code Compliance Corrections

Electrical repairs and diagnostics; panel upgrades and circuit breaker replacement; outlet, switch, and GFCI installs; interior and exterior lighting; bathroom fan wiring; EV charger installation; small residential remodel wiring and service calls.


Recent Reviews

4.90

(Based on 534 reviews)

Recent reviews consistently mention prompt scheduling, on-time arrivals, and clear communication from quote to completion. Homeowners frequently note effective troubleshooting of intermittent power issues and clean, careful work, especially in older homes. Several reviewers cite fair pricing and appreciation for technicians who explain options before proceeding.

Google Review
Natalia Velasquez on Mario Castillo Electric

Mario Castillo and his team did an excellent job on our electrical panel upgrade along with several smaller projects, including installing miscellaneous outlets and a bathroom fan. From start to finish, the work was professional, efficient, and clearly done with care.

Salvador and Kevin were especially great to work with. They were thoughtful and respectful of the historic nature of my 100-year-old home, taking extra care to preserve its character while updating the electrical systems. They communicated clearly, kept the work area tidy, and approached every detail with professionalism.

It’s not always easy finding electricians who understand older homes, but this team really does. I highly recommend Mario Castillo and his crew for anyone needing electrical work, especially in historic properties.

Had intermittent power on some outlets, and just occurs randomly when power is available and not. Checked the circuit breakers and none were popping every time juice was off. Made appt with Mario Castillo Electric and Vic showed up on time. I told him the situation and he checked the affected outlets and all the circuit breakers. Isolated it to a circuit breaker and replaced it. Back to normal again. I would recommend this company amd Vic.. Vic was methodical, quick, and shared his knowledge on what's he was doing. Great job!

Google Review
Nicholas Cohen on Mario Castillo Electric

Every part of the experience working with Mario Castillo Electric impressed me. Victor came out and gave us a detailed quote. Gabriel and Salvador performed the work and did a great job. The price was very reasonable, communication was good throughout the process, and they did excellent work. They’ve been way more on top of things than other companies I’ve worked with and they will be the first people I call from now on.

Google Review
Mehrnaz Namiranian on Mario Castillo Electric

Exceptional Service and Expertise from Mario Castillo!
?We had an outstanding experience with Mario Castillo Electrical today. Edgar D., the technician, who came to our home was truly excellent and demonstrated high skill across several different tasks.
?The work included replacing an existing light fixture, installing a new electrical outlet, and, most importantly, expertly troubleshooting some persistent issues we were having with a switch and another outlet. All the electrical problems were resolved quickly and effectively.
?The technician not only did an awesome job on the technical side, but they also had a great eye for detail, ensuring everything was finished neatly and correctly. It was a pleasure having such a professional and capable person handle our electrical needs.
?We highly recommend Mario Castillo for their excellent service and the quality of their technicians!

Google Review
Marisel Flod on Mario Castillo Electric

Salvador S. did an amazing job for us with Mario Castillo Electric. We would recommend him and this company to anyone who needs a good recommendation for good and decent job. The job was done in as we requested. We have had good technicians from this Company. Recommend both Luciano C. and Salvador S. They will listen to your needs.

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Frequently Asked Questions

Common calls include tripped or failing breakers, intermittent outlet power, faulty switches, lighting problems, and installing new outlets or fixtures. The team also performs panel upgrades and EV charger installations when additional capacity or dedicated circuits are needed.

Yes, many projects involve careful work in older homes to preserve finishes while updating wiring or fixtures. Technicians aim to minimize wall openings and discuss options before starting to keep the home’s character intact.

Yes, customers typically receive a clear scope and price before proceeding. If troubleshooting uncovers additional issues, the technician will explain findings and obtain approval for any changes.

Weekday appointments are generally available Monday through Friday during business hours. Exact timing may vary by schedule and service demand; call to confirm current availability.

Yes, the team installs Level 2 EV chargers and can add dedicated circuits where needed. Panel capacity is evaluated first to determine if an upgrade or breaker changes are required.
 Verified Listing

Opening Hours


  • Monday 8:00 AM – 5:00 PM
  • Tuesday 8:00 AM – 5:00 PM
  • Wednesday 8:00 AM – 5:00 PM
  • Thursday 8:00 AM – 5:00 PM
  • Friday 8:00 AM – 5:00 PM
  • Saturday Closed
  • Sunday Closed

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Business Details


Business Rating
4.90 (534 reviews) Pro Business
Address
444 W Ocean Blvd #800, Long Beach, CA 90802
Phone
Business Type
electrician

Location Map

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