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Cost Guide · Panel Upgrades

How Much Does an Electrical Panel Upgrade Cost in Annapolis, MD?

By Unity Electric · Annapolis, MD · Updated August 2026 · 7 min read
Short answer: A standard 100A-to-200A panel upgrade in Annapolis and Anne Arundel County typically costs $1,800 to $3,500, including the panel, breakers, permit, and labor. Homes needing a full service upgrade (new mast and meter socket) or replacement of a Federal Pacific or Zinsco panel can run $2,500 to $6,500. Unity Electric provides a free, written estimate after an in-person inspection — before any work begins.
In This Guide

Panel Upgrade Cost Breakdown

Pricing depends mainly on your panel's current amperage, your target amperage, and whether the service mast and meter socket need replacing along with the panel. Here's what homeowners in Annapolis, Arnold, Severna Park, and the rest of Anne Arundel County typically pay:

ScenarioTypical Cost Range
100A to 200A panel upgrade (standard)$1,800 – $3,500
Fuse box to 200A breaker panel$2,200 – $4,000
Federal Pacific / Zinsco panel replacement$2,000 – $3,800
Full service upgrade (mast, meter socket & panel)$3,500 – $6,500
Subpanel addition (garage, workshop, addition)$1,200 – $2,800

These are general Anne Arundel County ranges, not a quote. Exact pricing depends on your home's wiring, panel location, and whether the county requires additional grounding or bonding work to bring the system up to current code. Unity Electric always inspects the panel in person and provides a written, free estimate before any work starts — no surprise charges after the job begins.

Why Homeowners Upgrade Their Panel

Signs You Need a Panel Upgrade

Not sure if your panel needs replacing? Look for these warning signs:

Free panel inspection. Unity Electric will open your panel, check the amperage and condition, and tell you honestly whether you need an upgrade — no charge, no pressure, no upsell packages.

The Permit & Inspection Process in Anne Arundel County

Anne Arundel County requires a permit for every panel upgrade, plus a county electrical inspection once the work is complete. Here's what that looks like with Unity Electric:

  1. Free in-home assessment — we inspect your current panel, service size, and grounding.
  2. Written estimate — a fixed price, provided before we touch anything.
  3. Permit filed — we handle the Anne Arundel County paperwork.
  4. Installation day — most upgrades take one day, with power off for 4–6 hours.
  5. County inspection — we schedule and coordinate the final inspection with the county.

Why Homeowners Choose Unity Electric for Panel Upgrades

Unity Electric is a family-owned electrical contractor based in Annapolis. Every panel upgrade is quoted and, in most cases, personally handled by our master electrician — not a subcontracted crew working off a sales script. We built our reputation on being the alternative to high-pressure "package" sales: we tell you what your home actually needs, give you a free written estimate, and let you decide.

Frequently Asked Questions

How much does a panel upgrade cost in Annapolis, MD?

Most panel upgrades in Annapolis and Anne Arundel County run $1,800 to $3,500 for a standard 100A-to-200A upgrade, including the new panel, breakers, permit, and labor. Older homes needing a full service mast and meter socket replacement can run higher. Unity Electric provides a free, written estimate before any work begins.

How long does an electrical panel upgrade take?

A typical residential panel upgrade takes one day. Power to the home is usually off for 4 to 6 hours while the old panel is removed and the new one is installed, tested, and inspected.

Do I need a permit for a panel upgrade in Anne Arundel County?

Yes. Anne Arundel County requires an electrical permit and inspection for any panel upgrade. Unity Electric pulls the permit, schedules the county inspection, and handles the paperwork as part of every panel upgrade.

How do I know if I need a panel upgrade?

Common signs include a panel rated 60A or 100A in a home with central air, an electric range, or an EV, frequently tripping breakers, flickering lights, a fuse box instead of breakers, or a panel branded Federal Pacific or Zinsco. A free inspection is the fastest way to know for sure.

Will my homeowners insurance require a panel upgrade?

Some insurers in Maryland decline or surcharge policies on homes with outdated panels, particularly Federal Pacific, Zinsco, or fuse-box systems. If your insurer has flagged your panel, Unity Electric can provide documentation of the replacement for your policy file.

Get a Free, No-Pressure Estimate

Unity Electric provides honest, transparent quotes — no sales scripts, no upsell packages. Just a licensed master electrician telling you what you actually need.

UE

Written by the Unity Electric team
Family-owned, licensed master electricians serving Annapolis & Anne Arundel County, MD for 40+ combined years. We don't do high-pressure sales — just honest assessments and free estimates.