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200 Amp Electrical Panel Upgrades
An outdated or crowded electrical panel can make it difficult to add an EV charger, new appliances or more circuits. Slazik Electric replaces main panels and upgrades 100 amp services to 200 amps, with installation and materials included. Our family-owned team is based in Simi Valley and serves surrounding communities throughout the San Fernando Valley and Los Angeles area. We'll review your home's existing capacity and explain what your project needs before work begins.
• Main panel and breaker box replacement
• 100 amp to 200 amp service upgrades
• Permits and utility coordination
• Whole-home surge protection included
• 0% financing on approved credit
Instant Estimate
Get a quick electrical panel upgrade estimate without speaking to anyone. Answer some questions below to find out how much it would cost for Slazik Electric to upgrade your main electrical panel.
A Locally Focused Electrician
We install and replace main electrical panels in Simi Valley, Thousand Oaks, Westlake Village, Moorpark, Santa Clarita, North Hollywood, Glendale, Woodland Hills, Chatsworth and surrounding communities throughout Los Angeles and Ventura County.
Administrative team
Projects involving panel upgrades often require more than just labor in the field. Permit and utility coordination are a key part of a successful process.
Family owned & operated
Slazik Electric is a family-owned and operated business serving homeowners in Simi Valley and surrounding communities. We are licensed, bonded and insured.
Code-compliant installation
The goal is straightforward: safe installation, clean execution, and a result that supports both your present needs and future electrical plans for your home.
Typical Panel Upgrade Cost
Most residential panel upgrades and service changes vary based on panel size, meter location, utility requirements, grounding, surge protection, and whether drywall, stucco, or other site conditions affect the work.
$3,500–$6,000+
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CA License C-10 Electrical Contractor
# 1070107
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$500 Off Main Panel Upgrades
Why Homeowners Upgrade Their Electrical Panels
Planning an EV charger, new HVAC equipment or a remodel? We evaluate your existing panel and service capacity, then provide an estimate on whether your project needs a panel replacement or a service upgrade from 100 amps to 200 amps.
Insurance compliance
Some insurance providers flag older or outdated electrical panels. Upgrading your panel can help address safety concerns and avoid issues with coverage.
New loads or appliances
New HVAC equipment, electric dryers, induction cooking, or heat pumps can all increase the need for more electrical capacity.
Outdated equipment
If your panel is old, crowded, discontinued, or showing signs of wear, replacement can improve safety, serviceability, and future flexibility.
Future-proof your home
A service upgrade helps prepare your home for remodeling, adding an EV or large appliance, home batteries, and modern electrical demands.
You have a 100A service
We review your electrical loads and planned upgrades before recommending a 100 amp to 200 amp service change.
Remodeling your home
Renovation is often the best time to evaluate whether your electrical backbone should be updated at the same time.
Your panel is full
Lack of breaker space, old equipment, and discontinued systems often push homeowners toward replacement rather than patchwork changes.
You want an EV charger
One of the most common upgrade triggers today is preparing the home for EV charging without overloading the existing service.
What's Typically Included
We handle your main electrical panel replacement or service upgrade, including installation, materials, permits and utility coordination. Stucco or siding repairs from the panel work are included in your estimate.
Scope commonly includes
Main panel replacement or upgrade
100 amp to 200 amp service upgrades
New standard circuit breakers
Utility and permit processing
Inspection-ready installation
Whole-home surge protection
Code-compliant installation
Panel upgrades are completed in accordance with current electrical codes and local requirements. This includes proper grounding, bonding, conductor sizing, and overall system configuration to ensure the installation is safe, reliable, and built to handle modern electrical demand.
Each project is completed with permitting and inspections in mind, so the final installation is clean, organized, and ready for approval without unnecessary delays or rework.
Main Electrical Panel Upgrade FAQs
Most residential main panel upgrades and service replacements typically cost $3,500–$6,000+. The final cost depends on the existing service, planned capacity, utility requirements and installation conditions.
Increasing capacity, such as a 100 amp to 200 amp service upgrade, can require a new service riser and larger service feeders. That additional equipment and installation work can make an overhead upgrade more involved than replacing the panel alone.
Yes. Our main electrical panel upgrade estimates include the stucco or other siding repairs associated with the panel work. The repair scope is included in the estimate for your property.
Yes. We currently offer $500 off main electrical panel upgrades. This promotion is for the main panel, not a sub-panel or an equipment-only purchase.