A breaker panel replacement in Tampa Bay, swapping out a failed or outdated panel for a new one of the same amperage, runs $2,500-$5,000 installed, including the panel, breakers, permit, and labor. The difference between replacement and upgrade moves that number: a panel swap on a 100-amp-to-100-amp replacement lands toward the lower end. If you’re upgrading from 100 to 200 amps at the same time, add the standard upgrade costs on top.
Panel replacement isn’t something most homeowners hunt for until something forces the issue. Insurance non-renewal letters, storm damage, visible corrosion, or breakers that won’t hold anymore are the common reasons the question gets asked. Understanding what you’re actually paying for makes the difference between a straightforward repair and wondering why the cost isn’t lower.
Why a panel replacement happens in the first place
A few situations push panel replacement onto the radar. The most common in Tampa Bay are old panels that never got touched from the day the house was built, panels flagged by insurance underwriters as fire risks (Federal Pacific or Zinsco units), corrosion from coastal humidity eating into the internal bus bars and connections, and breakers that trip constantly or won’t reset properly.
Some homeowners want to replace a panel simply because it’s old and makes them nervous, which is understandable but not usually necessary if the panel is still holding a steady load. The decision usually becomes clear during a site visit: either the panel’s still got plenty of life left in it, or there’s a real reason it needs to come out.
A straight replacement costs less than an upgrade
A replacement keeps you at the same amperage. If your 100-amp service has been working fine but your panel is a Zinsco unit with faulty breakers, or it’s corroded to the point that connections are getting loose, a replacement puts in a new 100-amp panel with modern, reliable breakers. Cost stays in the $2,500-$3,500 range. You’re replacing the box and the guts, not changing your service capacity.
An upgrade, on the other hand, actually increases your amperage from 100 to 150 or 200 amps. That usually means the meter can and service entrance might need work too, which pushes costs toward $3,500-$5,000. The two projects get confused often because they happen in the same place at the same time, but they’re doing different things.
What moves the cost within the replacement range
Three variables matter most. First, how accessible is your panel. A panel on an exterior wall is straightforward. A panel buried in a garage corner behind storage, or in a utility closet where the meter sits on the other side of the wall, takes more finesse. Second, whether your meter can stays in place or needs to move. Most swaps just swap the panel behind an existing meter. A meter relocation adds extra labor and sometimes conduit rerouting. Third, your panel’s current condition. A clean replacement from a standard panel is routine. Replacing a corroded, damp, or heat-damaged panel sometimes means cleaning up damaged breakers or addressing the moisture that got in there first.
Tampa Bay’s humidity makes corrosion a real issue on older panels. A panel that’s been in a coastal or near-coastal property through twenty years of Florida summer moisture can show internal rust on the bus bars and discoloration on breaker terminals. Some of that cleans up and the new breakers seat fine. Sometimes there’s enough water intrusion that the interior of the can itself needs attention before the new panel goes in. Your electrician catches this on site and prices it then, not over the phone.
Federal Pacific and Zinsco panels are the insurance drivers
If your panel is a Federal Pacific or Zinsco unit, you might not have gotten a call about panel replacement at all. You got a non-renewal notice from your insurer. These two brands, built primarily in the 1960s-1980s, are known for breakers that fail to trip correctly during an overload, creating a fire risk. Florida insurers now require replacement before they’ll renew or issue a policy. The replacement itself costs the same as any other 100A-to-100A swap, around $2,500-$3,500. What changes is the timeline. An insurance deadline usually comes with a firm due date, not flexible scheduling. You’re replacing something working badly, not planning an upgrade on your own timeline.
If you’re not sure whether your panel is one of these brands, look at the label on the deadfront or main breaker. Federal Pacific panels say FPE or Federal Pacific. Zinsco units say Zinsco or ZEE or some variant. If you see either name, budget for replacement sooner rather than later. A few old photos of a discolored label can sometimes get the job scheduled faster than trying to remember the brand by description.
What the permit actually covers
Permit and inspection fees run $75-$150 in Hillsborough and Pinellas County, and that cost is included in the quotes above. The permit covers the replacement work, the inspection once the new panel is in place, and usually the final electrical tie-in. A contractor who quotes panel work without a permit is either planning to skip it (which creates real problems at resale or insurance claim time) or isn’t experienced enough to know it’s required. Always confirm your electrician’s Electrical Contractor license at myfloridalicense.com before signing anything.
Replacement is a one-day job, but plan for a few hours without power
The actual panel swap usually takes half a day to a full day depending on complexity. During the replacement itself, you’re without power for the few hours it takes to transfer breakers from the old panel to the new one and make the connections. The meter stays live the whole time (the power company handles that part), so you just lose load inside the house. You don’t get a choice on the timing in most cases; the work happens once and has to happen during daylight when the power company’s crew can come out if needed.
Should you upgrade while you’re replacing anyway
Some homeowners ask this question: if the panel’s coming out anyway, can we swap it to 150 or 200 amps while we’re at it? Yes, and sometimes it makes sense if you’re planning an EV charger, a whole-home generator, or other big electrical load in the next few years. Building that capacity in now costs less than modifying the panel twice later. But if you’re replacing because the panel is failing and you don’t have specific plans to add load, replacing at the same amperage keeps the costs lower and the scope simpler.
What happens after the panel is in
The electrician leaves with your new panel installed, all breakers tested, and a final inspection passed. You keep the permit paperwork and inspection sign-off in case you ever need to prove the work was done for insurance or when you sell. That’s the whole job. Ongoing maintenance is minimal; panels don’t really need anything except the occasional breaker replacement if one trips too much or stops holding. That’s handled as part of an electrical repair call, not a separate panel job.
Frequently asked questions
How much does panel replacement cost if I’m staying at the same amperage
A straight 100A-to-100A replacement typically runs $2,500-$3,500 installed, including the panel, breakers, permit, and labor.
Is a Federal Pacific or Zinsco replacement more expensive than a standard panel swap
No, the replacement cost is the same, around $2,500-$3,500. What changes is the timeline and urgency, because insurance non-renewal notices usually come with a deadline.
Can I upgrade my amps while replacing the panel
Yes, and it’s usually cheaper than doing it later. Upgrading from 100A to 200A during a replacement might run $3,500-$4,500 total instead of two separate projects.
How long does panel replacement take
The actual swap usually takes a half day to a full day. You’ll have power back on the same day once the inspection passes. You’re without power inside the house for just the few hours the work is happening.
Does the permit cost extra, or is it included in the quote
Permit fees, usually $75-$150, are already factored into the cost ranges above. Any contractor who quotes panel work without mentioning permit costs either isn’t counting them or plans to skip the permit.
What if my meter can is corroded too
Sometimes it is. If the meter can shows rust or corrosion from years of coastal humidity, your electrician might recommend replacing it at the same time as the panel. That adds $300-$600 but saves the hassle of doing it separately later.
Get a real quote for your panel
Every panel and every situation is different enough that a quote over the phone is just a guess. Call Tampa Electrical Pro at (813) 850-0320 and we’ll connect you with an electrician who’ll look at your actual panel, check its brand and condition, look at your meter, and give you a real number before any commitment. If you’re not sure whether replacement is what you actually need, our guide to warning signs covers what to watch for first.