John A Marzo Jr Construction & Electrical Company | Experienced Electrical Company in Pleasant Hill, CA

Pleasant Hill, CA 94523

(925) 674-1339

Frequently Asked Questions

My breakers in Pleasant Hill keep tripping. Is this a sign I need a panel upgrade?

Frequent tripping breakers in older Pleasant Hill homes are often a clear sign your electrical panel is overloaded. Modern appliances, home offices, and EV chargers demand more power than panels from 20-30 years ago were designed for. Our licensed electricians can assess your panel's capacity and safely perform a circuit breaker repair or a full panel upgrade to prevent nuisance trips and protect your home from potential fire hazards.

Can you install a whole-house surge protector when you remodel my kitchen?

Absolutely. Combining a kitchen remodel with whole-house surge protection is a smart upgrade for Pleasant Hill homeowners. During the remodel, when we're already running new circuits for appliances and lighting, our team can seamlessly integrate a surge protector at your main electrical panel. This protects your new kitchen electronics, as well as your entire home's sensitive devices, from the damaging voltage spikes that can occur during local power fluctuations.

We're adding an ADU. How do you ensure the new electrical system won't overload our existing home?

This is a critical consideration for Pleasant Hill ADU projects. As a combined construction and electrical company, we plan the entire project holistically. We start by evaluating your main home's current electrical load and panel capacity. For the new guest house or ADU, we design a dedicated sub-panel or, if needed, coordinate a main panel upgrade to ensure safe, separate, and sufficient power for both units. This integrated approach prevents overloads and ensures reliable power for years to come.

Provided Services

  • Remodeling
  • Landscaping building construction
  • Guest house or ADU construction
  • Electric installation or replacement
  • Generator installation

About the Local Business

John A Marzo Jr Construction & Electrical Company is a trusted, full-service contractor serving Pleasant Hill and the surrounding area. As both licensed electricians and general contractors, they offer a unique, integrated approach to home improvement and electrical safety. Many Pleasant Hill homes experience issues like overloaded breaker panels and damaging power surges, which can compromise safety and damage electronics. Marzo Jr's team directly addresses these local concerns by expertly upgrading and repairing electrical panels, installing whole-house surge protection, and modernizing wiring to handle today's power demands. Whether it's a simple outlet repair, a comprehensive kitchen remodel requiring new circuits, or the construction of a new ADU with a full electrical system, they ensure every project meets the highest standards of safety, code compliance, and craftsmanship.

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:7:00 AM - 5:00 PM
Sun:Closed


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