Electrical Panel Upgrade Costs in 2026: What Contractors Charge and Why

· Cost Guide · 6 min read

An electrical panel upgrade costs $1,500–$4,000 for a standard 200-amp service replacement in most US markets. Upgrading from 100 amps to 200 amps — the most common residential upgrade — runs $1,800–$3,500 installed, including the new panel, labor, permit, and inspection. Whole-house rewiring, service entrance upgrades, or hazardous panel replacements in older homes can push total costs to $5,000–$12,000 depending on what is discovered once the work begins.

Why Homeowners Upgrade Their Electrical Panel

The four most common triggers for a panel upgrade in 2026:

Panel Upgrade Cost by Scenario

100-Amp to 200-Amp Service Upgrade: $1,800–$3,500

The most common residential panel upgrade. This is straightforward when the service entrance wiring from the utility meter is adequate and the panel location does not change. Complications that add cost: the service entrance cable needs replacement ($400–$900 additional), the meter socket is outdated ($200–$500 additional), or the work triggers required code compliance upgrades on existing circuits — GFCI and AFCI breaker requirements in older homes can add $500–$1,500 in breaker upgrades alone.

200-Amp to 400-Amp Service Upgrade: $3,500–$8,000

For homes with substantial electrical loads — multiple EV chargers, large HVAC systems, whole-home battery systems, or home-based workshops with industrial equipment. True 400-amp service requires utility approval and typically a service drop upgrade from the utility company, a separate process that sometimes involves utility fees of $500–$2,000 depending on local utility rules. Not all utilities offer residential 400-amp service; confirm availability before planning this scope.

Federal Pacific or Zinsco Panel Replacement: $1,500–$3,000+

Hazardous panel replacement with a code-compliant 200-amp unit. The panel swap cost is comparable to a standard upgrade, but electricians often find additional issues during Federal Pacific removals — breakers that have never tripped correctly, melted wiring at breaker connections, and aluminum branch wiring that requires pigtailing to meet current code. Budget an additional $500–$2,000 for remediation of issues discovered once the panel is opened.

Fuse Box to Circuit Breaker Panel Replacement: $2,500–$5,500

Replacing a fuse box in a pre-1960 home while simultaneously upgrading service. These projects frequently encounter knob-and-tube wiring, aluminum branch wiring, or undersized conductors requiring circuit-by-circuit remediation — particularly kitchen, bathroom, and exterior circuits where GFCI protection is now required by code. The unpredictability of what is found behind old walls makes contingency budgeting essential for these projects.

Subpanel Addition (No Service Upgrade): $500–$2,000

Adding a subpanel to distribute existing amperage capacity to a detached garage, workshop, or accessory dwelling unit. A subpanel does not solve an amperage shortage — it only redistributes available capacity. Distance from the main panel, conduit routing requirements, and the subpanel's circuit count determine where the cost falls in this range.

What Drives Cost Variation Within Any Scenario

What Your Bid Should Itemize

A properly scoped panel upgrade bid from a licensed electrician should separately line out:

Any bid that does not separately show permit and inspection should be treated as potentially excluding them. A panel replacement done without a permit is a liability to you as the homeowner, not to the contractor.

Contractor Selection: Only a Licensed Electrician

Panel upgrades must be performed by a licensed electrician — not a general contractor, not a handyman. In all US states, electrical panel work requires either a Master Electrician license or a Journeyman Electrician working under a licensed electrical contractor. Before authorizing work, verify:

Get at least three bids. The guide to vetting contractors covers license verification and insurance certificate review — the same process applies to electricians. For a complete breakdown of which projects require permits and what the inspection process involves for each, the permit requirements guide covers electrical work specifically. Before accepting any bid, use the framework in getting and comparing contractor bids to evaluate scope equivalency — two bids at different price points may include fundamentally different scopes of work. Browse licensed electrical and general contractors in your city, or find top-rated contractors near you with verified electrical licensing and panel upgrade experience.

Frequently Asked Questions

How much does it cost to upgrade a 100-amp panel to 200 amps?
Upgrading from 100-amp to 200-amp service costs $1,800–$3,500 in most US markets, including the new panel, labor, permit, and inspection. Cost increases if the service entrance cable needs replacement ($400–$900 additional), the meter socket requires updating, or current electrical code triggers AFCI and GFCI breaker upgrades on affected circuits.
How long does an electrical panel upgrade take?
A standard 100-amp to 200-amp panel replacement takes 4–8 hours for an experienced electrician. Power must be off for the duration, typically 6–10 hours including utility coordination for meter disconnection and reconnection. Post-installation inspection adds 1–5 business days depending on your local building department's scheduling.
Do I need a permit for an electrical panel upgrade?
Yes, always. An electrical panel upgrade requires a building permit in all US jurisdictions. The permit triggers an electrical inspection after installation to confirm proper grounding, code compliance, and safe installation. Never hire a contractor who suggests skipping the permit — an unpermitted panel creates insurance and resale complications and is a safety risk.
Can a general contractor replace an electrical panel?
No. Electrical panel replacement requires a licensed electrician — either a Master Electrician or a Journeyman working under a licensed electrical contractor. A general contractor's license does not authorize panel work in any US state. Always verify the specific electrician's license, not just the contractor's general credential, before authorizing work.
What size electrical panel does a modern home need?
Most homes built or renovated today are sized for 200-amp service, which is adequate for typical residential loads. Homes with Level 2 EV charging, large heat pump systems, workshops, or whole-home battery systems should evaluate their 200-amp capacity carefully — peak simultaneous loads may require 400-amp service or a subpanel to accommodate demand without tripping.