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Electrical Panel Upgrade Cost Calculator (2026)

Estimate panel swap, service upgrade, or sub-panel add. 2026 NEC code (surge protector, AFCI) included. Not a contractor bid.

Newly installed 200-amp residential electrical service panel with neatly bundled circuits, labeled breakers, and the dead-front cover removed

Enter your panel project

Includes labor, equipment, permit, and contractor markup. Licensed electrician required.

Common projects

Scope & panel

Uses the first 3 digits as a planning zone (not exact local pricing). Overrides state average when matched.

Service-side & code

Your panel upgrade estimate

Estimated installed range
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Cost breakdown

ItemQuantityEstimated range
Planning estimate, not a bid. 2026 ranges informed by 2024 NEC, manufacturer (Square D, Eaton, Siemens) MSRP, HomeGuide, HomeAdvisor, Homewyse.
What's not included: branch-circuit rewiring (whole-home rewire is separate), structural mast support, generator interlock, EV charger install, smart panel (Span / Lumin) upgrades, asbestos / lead abatement on old wiring jackets.

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Methodology & sources

What this is: a planning-range electrical-panel calculator informed by 2024 NEC, manufacturer pricing (Square D, Eaton, Siemens), and HomeGuide/HomeAdvisor.

Labor is modeled from per-unit installed rates with a crew-rate sanity check ($80-$150/crew-hr loaded billing rate), informed by BLS OEWS 47-2111 (Electricians).

Code references: 2024 NEC 230.67 (whole-home surge), 210.12 (AFCI), 250 (grounding), 230 (service entrance).

Last updated: May 2026. Full methodology →

How much does a panel upgrade cost in 2026?

ScopeRangeTimeline
Like-for-like 200A swap$1,500-$3,5001 day
100A to 200A service upgrade$2,500-$5,5001-2 days
Upgrade to 400A$4,000-$10,0002-3 days
Sub-panel (100A) install$1,000-$2,5001 day
Knob-tube remove + 200A upgrade$5,000-$15,000+1-2 weeks

Frequently asked questions

How much does a panel upgrade cost?

200A swap $1.5-3.5k. 100A→200A service upgrade $2.5-5.5k. 400A upgrade $4-10k. Sub-panel $1-2.5k.

Why upgrade?

EV chargers, heat pumps, induction ranges, solar/battery push 100A panels past their limit. 200A is today's default.

Do I need a permit?

Yes — main panel and service work always require permit + licensed electrician.

How long does it take?

1 day for swap. 1-2 days for service upgrade. 2-3 days for 400A. Power off 4-8 hours during work.

What's included with 2024 NEC?

Whole-home surge protector (NEC 230.67), AFCI breakers on most circuits (210.12), tamper-resistant outlets, GFCI on all bedrooms.

Common mistakes & questions

  • Pull a permit — un-permitted electrical work voids insurance and shows up in home inspections.
  • Verify utility coordination — the electrician + utility must coordinate the disconnect/reconnect.
  • 2024 NEC requires whole-home SPD (surge protector) and most circuits AFCI — verify scope.
  • Match panel brand to existing breakers — Square D Homeline vs QO are not interchangeable.
  • Federal Pacific or Zinsco panels — replace immediately, fire hazard.
  • Plan for future loads (EV, heat pump, induction) when sizing — the cost difference is small upfront, large later.
  • Ask your electrician: license + insurance, permit pull, AHJ inspection schedule, utility coord plan, panel brand match.

When this estimate is wrong

  • Old service entrance buried, requires trenching = +$1-3k.
  • Knob-and-tube wiring discovered during work.
  • Aluminum wiring branch circuits need pigtail or replacement.
  • Hurricane / earthquake mast bracing in CA / FL.
  • Utility backlog 2-6 weeks for service upgrades.
  • Inspector backlog 1-3 weeks.