Electrical Panel Upgrade in Rancho Cucamonga & Surrounding Cities

100 Amp to 200 Amp Service Upgrades, FPE & Zinsco Replacement, Breaker Box Upgrades

Upgrade your home’s electrical capacity with a code-compliant 200-amp electrical panel upgrade by C-10 licensed electricians. We replace outdated 100-amp panels, Federal Pacific (FPE) panels, Zinsco panels, and old fuse boxes with modern Eaton, Square D, or Siemens breaker panels designed to handle today’s electrical demands.

Save Up to $4,200 With the SCE Charge Ready Home Rebate

Many electrical panel upgrade customers in the local area qualify for significant rebates through Southern California Edison’s Charge Ready Home program. Eligible homeowners receive up to $4,200 toward their electrical panel upgrade — especially when paired with EV charger installation.

Income-Qualified — Up to $4,200

Households participating in CalFresh, Medi-Cal, SSI, LIHEAP, or other public assistance programs
Households earning less than 80% of area median income
Pre-Owned EV Program participants

Geographic-Qualified — Up to $2,100

Homes located in designated disadvantaged communities (per state SB535 mapping)
ZIP code-based eligibility verification

SPD Electric is familiar with the Charge Ready Home application process and can help guide eligible homeowners through rebate qualification. To check your eligibility and apply, visit the official Southern California Edison Charge Ready Home program page.

Check SCE Rebate Eligibility

Why Upgrade Your Electrical Panel?

Insufficient Capacity

Older 100-amp electrical panels can't handle modern electrical loads from EV chargers, central air conditioning, electric appliances, or major home additions. Upgrading to a 200-amp panel gives you the capacity to power today's electrical demands without tripping breakers or overloading circuits.

Outdated or Recalled Panels (FPE, Zinsco)

Federal Pacific (FPE) and Zinsco electrical panels installed in homes built between 1950-1990 have been linked to fire hazards because their breakers may fail to trip during overload conditions. Many insurance companies now require replacement of these recalled panels.

Adding an EV Charger or Major Appliance

Installing a Level 2 EV charger, hot tub, ADU, central HVAC, or kitchen renovation often requires more electrical capacity than your existing panel can safely deliver. About 60% of EV charger installations require a panel upgrade first.

Aging or Failing Electrical Panels

Electrical panels last 25-40 years. Signs your panel needs replacement include: breakers that won't reset, frequent tripping, burning smells, warm panel surfaces, rust or corrosion, scorch marks around breakers, or flickering lights when appliances run.

Types of Electrical Panel Upgrades We Handle

100 Amp to 200 Amp Upgrade

The most common residential panel upgrade. Replaces an existing 100-amp electrical panel with a modern 200-amp panel for double the capacity. Required for adding EV chargers, central air, or major appliance loads. Includes new service entrance, meter base, and breakers.

200 Amp to 400 Amp Service Upgrade

For larger homes (3,500+ sq ft), homes with multiple HVAC systems, or properties with ADUs and detached structures. A 400-amp service handles the largest residential electrical loads with capacity to spare.

Federal Pacific & Zinsco Replacement

Specialty replacement of recalled FPE and Zinsco electrical panels with modern Eaton, Square D, or Siemens equivalents. Critical safety upgrade — many insurance companies refuse to cover homes with these panels still installed.

What's Included With a Panel Upgrade From SPD Electric

We deliver complete electrical panel upgrades from initial estimate through final inspection. No surprises, no hidden charges.

Free in-home assessment of current electrical panel and service
Pulling all required city building permits
Coordination with Southern California Edison (SCE) for service disconnect
Removal and disposal of existing panel
Installation of new 200-amp main breaker panel (Eaton, Square D, or Siemens)
New service entrance conductors, weatherhead, and meter base if needed
Proper grounding and bonding to current National Electrical Code (NEC)
AFCI and GFCI protection per California Title 24 requirements
Code-compliant labeling of all circuits
All required city electrical inspections
1-year workmanship warranty on all installation labor
Manufacturer warranty pass-through (10 years on most panels)

Modern 200-Amp Service

Code-Compliant Installation

We Replace Outdated Electrical Panels & Old Fuse Boxes

Many homes in Rancho Cucamonga, Chino Hills, and the Inland Empire built before 1990 still have original electrical panels, old fuse boxes, or recalled brands like Federal Pacific (FPE) and Zinsco. These outdated systems create real safety risks and often can’t handle modern electrical loads.

Federal Pacific (FPE) Replacement

Federal Pacific Electric panels — also called Stab-Lok panels — were installed in millions of homes between 1950-1990. Multiple investigations have found these breakers may not trip during overload conditions, allowing dangerous current flow that can cause fires. We safely remove and replace FPE panels with modern Eaton, Square D, or Siemens equivalents.

Zinsco Panel Replacement

Zinsco electrical panels (sometimes branded GTE-Sylvania or Sylvania-Zinsco) have similar safety problems to Federal Pacific. The breakers are prone to failing in the closed position, meaning they don’t trip during a fault. Replacement is the only safe solution. Most home insurance carriers now require Zinsco panels be replaced.

Fuse Box Conversion

Older homes built before 1965 may still have fuse boxes instead of modern circuit breakers. We convert old fuse boxes to modern breaker boxes — no more replacing blown fuses, easier circuit management, and updated safety. Required by many home insurance policies and lenders.

Built to Code, Built to Last

Premium Panel Brands

We install Eaton, Square D, and Siemens electrical panels — the most reliable brands trusted by professional electricians and backed by 10-year manufacturer warranties. These panels are stocked at all major electrical supply houses, making future service or expansion easy.

NEC Code Compliance

Every electrical panel installation meets current National Electrical Code (NEC) requirements and California Title 24 standards. This includes proper grounding, bonding, AFCI and GFCI protection, and all required safety features.

Future-Ready Capacity

200-amp service handles modern household loads — central air conditioning, EV charging, electric appliances, ADU additions — with room to grow as your needs change. Perfect for homes preparing for full electrification.

What to Expect With Panel Upgrade Pricing

Panel upgrade pricing varies based on the size of upgrade (100A to 200A vs. 400A), whether your home needs a service entrance relocation, the type of existing panel being replaced, and any required structural modifications. We provide a detailed, itemized written estimate before any work begins. No hidden fees. No surprise charges.

100 amp to 200 amp upgrade: $3,500 – $7,500
Federal Pacific or Zinsco replacement: $4,500 – $8,500
400 amp service upgrade: $8,000 – $15,000
Subpanel addition: $1,500 – $3,500

Flexible Financing Options Available

An electrical panel upgrade is a long-term investment in your home’s safety and value. SPD Electric offers financing options to make the upgrade affordable.

Affordable Monthly Payments

The SPD Electric Difference

Typical Electrician

PREFERRED CHOICE

SPD Electric Corp

Installs premium Eaton, Square D, or Siemens panels
Pulls all required city permits, every job
Coordinates SCE service shutoff in advance
1-year workmanship guarantee on all labor
Owner-operated work, no sub-contracted crews

Our Panel Upgrade Process

Clear, step-by-step process from estimate to final inspection.

Free Assessment

We come to your home, inspect your current electrical panel, evaluate your service needs, and provide a written itemized estimate.

Permits & SCE Coordination

We pull required city permits and coordinate the Southern California Edison service disconnect schedule (typically 2-4 weeks).

Panel Installation

We replace your panel in 4-8 hours. SCE temporarily disconnects power during the swap. We work efficiently to minimize disruption.

City Inspection

Local building department inspector verifies all work meets code before final SCE reconnection.

Walkthrough & Warranty

We walk you through your new panel, explain the new circuits, and activate your 1-year workmanship warranty.

Frequently Asked Questions About Electrical Panel Upgrades

How long does an electrical panel upgrade take?

A standard 100-amp to 200-amp electrical panel upgrade typically takes 4-8 hours of on-site work. Power is temporarily disconnected during the swap. The full project — from initial estimate through permit, SCE coordination, installation, and city inspection — usually takes 2-4 weeks.

Do I need a permit for a panel upgrade?

Yes. California requires building permits for all electrical service upgrades. SPD Electric pulls all required permits and handles inspection coordination as part of every panel upgrade. Skipping permits creates legal, insurance, and safety problems when selling your home.

How do I know if I need to upgrade my electrical panel?

Common signs include: frequently tripped breakers, flickering or dimming lights when appliances run, burning smells from your panel, plans to add an EV charger or major appliance, or a Federal Pacific (FPE) or Zinsco panel installed before 1990. We provide free on-site assessments to evaluate your current system.

Will I be without power during the panel upgrade?

Yes, temporarily. Power is disconnected for typically 4-8 hours during the panel swap. We coordinate with Southern California Edison (SCE) in advance so you know exactly when to expect the outage. We work efficiently to minimize disruption.

What panel brands do you install for upgrades?

We install premium-grade panels from Eaton, Square D, and Siemens — the brands most trusted by professional electricians. These panels carry 10-year manufacturer warranties and are stocked at all major electrical supply houses.

Why are Federal Pacific and Zinsco panels dangerous?

Federal Pacific (FPE) and Zinsco electrical panels installed in homes built between 1950-1990 have been linked to breaker failure and fire hazards. The breakers may not trip during overload conditions, allowing dangerous current flow. Many insurance companies now require these panels be replaced.

Do you offer financing for panel upgrades?

Yes. We offer flexible financing options to make panel upgrades affordable. Most customers qualify for monthly payment plans. Details discussed during your free on-site assessment.

Can you install an EV charger at the same time as my panel upgrade?

Yes, and it’s often the most cost-effective approach. About 60% of EV charger installations require a panel upgrade first. Combining both projects saves on labor and permit costs. We’re EVITP certified for safe, code-compliant EV charger installation.

What's the difference between an electrical panel upgrade and replacement?

The terms are often used interchangeably. A panel upgrade typically means increasing capacity (100-amp to 200-amp), while a panel replacement means swapping out an old or damaged panel. Both involve removing the existing panel and installing a new one. SPD Electric handles both — learn more about electrical panel replacement.

Related Electrical Panel Services

Looking for different panel work? SPD Electric handles every type of electrical panel project:

Need to replace an old or recalled panel? → Electrical Panel Replacement
Need a brand new panel for new construction or ADU? → Electrical Panel Installation
Need to fix a specific panel problem? → Electrical Panel Repair

Get Your Free Panel Upgrade Estimate Today

Protect your home, modernize your electrical capacity, and meet code requirements with a professional electrical panel upgrade from SPD Electric Corp.

Why Choose SPD Electric?

Service Areas: Electrical panel upgrade services in Rancho Cucamonga, Chino Hills, Claremont, Ontario, Upland, Yorba Linda, Glendora, Brea, and the Inland Empire.

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