Most homeowners don't give their electrical panel a second thought — until the breakers start tripping, an electrician flags it during a home sale, or they realize their 100-amp service from 1972 can't handle a modern home. Panel upgrades are one of the most common jobs we do at Clarity Electric, and one of the most frequent questions we get is simple: what's this going to cost me?
The honest answer is that it depends — but not in a vague, hand-wavy way. There are specific variables that drive the price up or down, and we can usually give you a firm number after a quick look at your home. Here's how it breaks down.
What Does a Panel Upgrade Actually Cost?
For a standard 200-amp panel upgrade in the Seattle metro area — King County, Eastside, South King County — homeowners should budget $1,800 to $3,200 for the complete job. That range covers most straightforward residential upgrades: an existing 100-amp or 150-amp panel replaced with a new 200-amp main breaker panel, permits pulled and finaled, circuits transferred, and the job cleaned up and documented.
The variables that affect where you land in that range include:
- Permit fees: King County jurisdictions vary. City of Newcastle, Renton, Bellevue, Issaquah, and Kirkland each have their own fee schedules. Permit costs are real money — typically $150–$350 — but they're not negotiable and they're not optional.
- Utility coordination: Puget Sound Energy (PSE) has to disconnect and reconnect your service during the upgrade. Scheduling that coordination adds time to the project, though it doesn't usually add significant cost.
- Existing conditions: A panel in a finished basement with tight clearances is more work than one in an open utility room. Older homes with knob-and-tube or aluminum branch wiring may require additional work to bring circuits up to current code at the panel.
- Meter socket condition: If the meter base (the enclosure where PSE's meter plugs in) is corroded, damaged, or undersized for 200-amp service, it needs to be replaced at the same time. That adds $300–$600 to the scope.
From our experience in King County: Most panel upgrades we do in King County come in between $2,200 and $2,800 for straightforward residential jobs. Complicated situations — older homes, Federal Pacific or Zinsco panels, meter socket replacement — can push the number higher. We'll tell you where you stand before we start.
What's Included in That Price?
A complete panel upgrade from Clarity Electric includes everything required to deliver a finished, inspected, code-compliant job. Here's what that means in practice:
- Load analysis — We calculate your home's electrical load to confirm 200 amps is the right service size (it almost always is for modern homes).
- New 200-amp main breaker panel — We use quality panels from brands like Square D QO or Eaton BR. We don't cut corners on the hardware.
- Full circuit transfer — Every existing circuit is moved from the old panel to the new one, labeled clearly.
- Permit application and fees — We pull the permit, pay the fee, and handle all paperwork. No markup on permit costs.
- Utility coordination with PSE — We schedule the service disconnect/reconnect and coordinate timing to minimize your downtime.
- Old panel disposal — We take the old panel with us. You don't deal with it.
- Inspection attendance — We schedule and attend the final inspection. The job isn't done until it passes.
What Makes a Panel Upgrade More Expensive?
Some situations legitimately add cost. It's worth knowing about these upfront so there are no surprises.
Older home with 60-amp service
Homes built before the 1960s sometimes still have 60-amp service with older fuse panels. Upgrading from 60 to 200 amps typically requires a new service entrance cable from the utility attachment point down to the meter and panel — more material and labor than a straight panel swap.
Federal Pacific or Zinsco panels
These two panel brands have documented safety issues — breakers that fail to trip under fault conditions, increasing fire risk. They're also harder to permit in some jurisdictions because inspectors scrutinize the work more carefully. If you have a Federal Pacific Stab-Lok or a Zinsco panel, plan on the higher end of the range, and know that replacing it is the right call regardless of cost.
Underground service entrance
If your electrical service comes underground from the street or a pad-mounted transformer rather than overhead from a pole, the utility coordination and any rework of the service entrance is more involved.
Adding circuits at the same time
A panel upgrade is a good opportunity to add new circuits — for an EV charger, a workshop, or an outdoor outlet. Adding circuits during the panel upgrade is cheaper than doing it as a separate job later, but it does add to the initial invoice.
Panel-to-meter distance
If your main panel is far from the meter — common in homes where the panel was moved or upgraded at some point — the service entrance conductors are longer and the job takes more material and time.
What About the Permit?
Permits are required for panel upgrades in every city we work in: Newcastle, Renton, Bellevue, Issaquah, Kirkland, and the unincorporated King County areas. There is no legal path to doing this work without a permit, and any electrician who offers to skip it is offering you a liability, not a deal.
Here's what the permit process actually involves: we submit the application to the jurisdiction, pay the fee, schedule the work, and then schedule a final inspection with the city's electrical inspector. The inspector verifies the installation meets the National Electrical Code as adopted in Washington State. When it passes, you get a final sign-off on record with the city.
We handle all of this as part of the job. There's no markup on permit fees — you pay what the jurisdiction charges, nothing more.
Why Not Just Get the Cheapest Quote?
This comes up regularly and the answer is worth saying plainly. Electrical work that isn't permitted creates real problems.
Unpermitted work won't appear on your home's permit history, which becomes an issue when you sell — buyers' inspectors find it, title companies flag it, and you can end up having to redo the work on your timeline instead of ours. More importantly, your homeowner's insurance policy likely has a clause about code-compliant installations. An unlicensed panel upgrade that isn't inspected may not be covered if it's ever involved in a fire or damage claim.
The permit isn't a bureaucratic formality. It's the mechanism by which an independent inspector verifies the work is safe. That verification protects you.
How to Get an Accurate Quote
The best way to get a firm number is to let us take a look. We offer free estimates, and most projects can be quoted same day or next day.
When you reach out, it helps to have a few things ready:
- Your home's approximate age and current panel amperage (usually labeled on the main breaker)
- What you're trying to add or accomplish — EV charger, heat pump, more capacity generally
- Whether you know the panel brand (Federal Pacific, Zinsco, Square D, etc.)
- Whether the panel is in an accessible location or a finished space
With that information, we can usually give you a number on the first call or after a quick site visit. No pressure, no obligation — just an honest estimate from the electrician who would actually do the work.
Call or text us at (425) 312-8095, or use the contact form to request an estimate online. We serve Newcastle, Renton, Bellevue, Issaquah, Kirkland, and surrounding King County communities.