Electrical Panel Repair and Replacement

The panel is the single point every circuit in a building runs through, which means panel problems tend to show up as symptoms scattered around the house rather than one obvious complaint. A breaker that won't reset, a burning smell near the panel, or rust inside the cover are all reasons to stop guessing and have it looked at directly. Call (954) 602-0050 and describe what you're noticing, and we'll help you figure out whether it's a repair, a replacement, or something smaller.

Panel work covers a wide range, from replacing a single breaker to a full panel swap tied to a service upgrade. We evaluate the whole picture before recommending either one: the panel's brand and condition, what it's actually feeding, and how much load the building places on it day to day. This page walks through the specific warning signs, the panel brands worth knowing about, and how load calculations and permitting fit into the process.

Signs a Panel Is Failing

A panel in trouble usually gives some warning before it fails outright, though not always in ways homeowners recognize right away. Breakers that trip for no clear reason, breakers that feel loose or won't stay reset, warm or discolored spots on the panel cover, and a persistent burning or ozone-like smell near the panel are all signs worth taking seriously. Flickering lights throughout the house, not just in one room, can also point back to a connection problem inside the panel itself rather than anything downstream.

Some signs are more subtle. A panel that hums audibly, even faintly, is not doing that for no reason, and the same goes for a panel cover that feels warm to the touch during normal use. None of these symptoms are things to wait out, since a panel problem left alone tends to get worse, not better, over time.

Visual signs matter too, and they're often easier for a homeowner to spot than an electrical symptom. A double-tapped breaker, where two wires land under a single terminal not designed to hold both, discolored or melted plastic around a specific breaker, and a panel cover that no longer sits flush because of internal damage or a prior improper repair are all things we look for immediately during a panel inspection. A crowded panel with wiring stuffed in without any organization is also worth a second look, since it usually means past work was done without much attention to what's considered safe practice.

Federal Pacific and Zinsco Panels

Two brand names come up constantly in panel conversations: Federal Pacific, sold under the Stab-Lok product line, and Zinsco. Both were widely installed in homes built or renovated across several decades in the last century, and both have a well-documented history of breakers that fail to trip when they're supposed to. A breaker's entire job is to open the circuit when it senses an overload or a short, and a breaker that doesn't do that reliably defeats the purpose of having one there at all.

With Zinsco panels specifically, the breaker connection points inside the panel are prone to overheating and can fuse to the bus bar over time, which sometimes means a breaker looks like it's tripped when it hasn't actually interrupted the circuit. Federal Pacific panels have their own history of breakers testing as defective at rates well above what would be expected from properly functioning equipment. If you have either brand, or you're not sure what brand is in your panel, that's worth having checked specifically rather than assumed to be fine simply because nothing has gone wrong yet.

You can often identify the brand by opening the panel door and reading the label on the inside cover or on the breakers themselves, without needing to remove the dead front or touch anything live. If the label is worn away, missing, or the panel has been repainted over the years, we identify it by the shape and style of the breakers instead, since both brands used distinctive breaker designs that are recognizable once you know what to look for. Either way, identifying the brand is one of the first things we do on a panel visit, since it changes the urgency of the conversation considerably.

Buzzing, Heat and Rust

Buzzing from a panel points to a loose connection or an arcing condition somewhere inside, and arcing generates heat and, over time, damage to the panel's internal components. It's not something that fixes itself, and it tends to get louder and more frequent as the underlying connection continues to degrade. We treat an audibly buzzing panel as something to address promptly rather than something to monitor and revisit later.

Rust and corrosion inside a panel usually trace back to moisture intrusion, whether from a roof leak above the panel, condensation, or, in coastal areas, salt-laden humid air working on the metal enclosure and its internal hardware over years. Rust on breakers, bus bars, or the panel's mounting hardware weakens connections and creates resistance that generates heat under load. A panel showing visible rust, especially anywhere near the breakers themselves, needs a hands-on evaluation rather than a guess from a photo.

Panels mounted outdoors, common on many South Florida homes, take the brunt of this exposure directly, especially properties within a few miles of the coast. A panel enclosure that's rusting through on the outside is usually further along on the inside than it looks from the street, since the interior components take longer to show visible corrosion even after moisture has already started affecting them. We check the interior condition on any outdoor panel showing exterior rust rather than assuming the damage is only cosmetic.

Breakers That Won't Reset or Trip Repeatedly

A breaker that trips once in a while, tied to an obvious cause like an overloaded circuit or a specific appliance, is often just doing its job correctly. A breaker that trips repeatedly with no clear pattern, or one that won't stay reset at all, points to a problem either in the breaker itself, the wiring it feeds, or the connection between the breaker and the panel's bus bar. Distinguishing between those causes is exactly the kind of diagnostic work we do before recommending a fix, since replacing a breaker that's actually fine won't solve a wiring problem, and rewiring a circuit won't fix a genuinely bad breaker.

Nuisance tripping, where a breaker trips even though nothing seems obviously overloaded, deserves the same attention. Sometimes it traces back to a circuit that's simply carrying more than it was ever designed for as new appliances and electronics get added to a home over the years. Other times it points to a breaker that has weakened internally and now trips at a lower threshold than it used to.

A breaker that physically will not stay in the "on" position at all, snapping back to off or to a tripped middle position immediately, is telling you something is actively wrong with either that circuit or the breaker itself, and that's not something to keep resetting and hoping it holds. Repeated resetting of a breaker that keeps tripping under an actual fault condition risks stressing the breaker further and, depending on the underlying cause, can allow a developing problem to get worse each time.

Repair Versus Replace: How We Decide

Not every panel problem means the whole panel needs to go. A single failing breaker in an otherwise sound panel can often be replaced on its own, and a loose connection can sometimes be corrected without touching the rest of the panel. We look at the panel's overall condition, its brand and age, how many individual issues we're finding, and what it would cost in ongoing risk to leave the rest of it in place before recommending a full replacement.

That said, certain findings push us toward a full replacement regardless of how the rest of the panel looks. A panel brand with a documented history of failing to trip properly, or a panel with damage spread across multiple breakers and connection points rather than isolated to one spot, usually means a full replacement is the more sound long-term answer, since patching individual issues on a panel with a systemic problem just means dealing with the next failure a little further down the road. We explain our reasoning either way, so the decision makes sense to you rather than landing as a recommendation you just have to take on faith.

Load Calculations and Panel Capacity

Whenever we're evaluating a panel for repair, replacement, or an upgrade, we run a load calculation to understand what the panel is actually being asked to support. This means adding up the demand from major appliances, air conditioning, water heating, and general household or building circuits, and comparing that total against what the panel and the service feeding it are rated to deliver. A panel replacement sized without this step risks being undersized for what the building actually needs, which just recreates a capacity problem a few years down the line.

Load calculations also matter beyond a straightforward panel swap. Adding an EV charger, a standby generator, or additional air conditioning capacity all draw from the same finite service capacity, so we factor in not just what's on the panel today but what a homeowner or property manager is realistically planning to add in the near future.

This matters just as much for a straightforward residential panel replacement as it does for anything more complex. A homeowner replacing a failing panel purely to fix a safety problem still benefits from sizing the new panel with some spare capacity built in, rather than matching the old, undersized service exactly and running into the same limitation the moment they want to add anything down the road.

Panel Types and Amperage Common in South Florida

Older homes in this region were often built with smaller services, in the range that was standard decades ago, which was adequate for the appliances of that era but often falls short of what a modern household with central air conditioning, an electric range, multiple large appliances, and various electronics actually needs. Newer construction and most panel upgrades today use larger service sizes that leave meaningfully more headroom for future additions.

The physical panel itself also varies by manufacturer and generation, from older fuse-based systems that predate circuit breakers entirely, to breaker panels from the decades when Federal Pacific and Zinsco were common, to modern panels built by manufacturers still in wide use today. Identifying exactly what's installed is one of the first things we do on any panel visit, since it shapes every recommendation that follows.

Fuse panels in particular come up occasionally in homes that have never had a major electrical update. A fuse-based system uses screw-in or cartridge fuses instead of breakers, and while a properly sized fuse does its job, homeowners over the years commonly replace a blown fuse with a higher-rated one out of frustration with it blowing repeatedly, which defeats the fuse's protective purpose entirely. A fuse panel showing evidence of oversized fuses is a clear sign the system needs a real evaluation rather than another replacement fuse.

Surge Protection at the Panel

A whole-panel surge protective device installs directly at the panel and protects every circuit downstream of it from voltage spikes, rather than relying on individual plug-in surge protectors at each outlet. South Florida's frequent lightning activity and the power fluctuations that come with storms and grid switching make this a meaningful addition for homes and buildings with sensitive electronics, appliances with electronic control boards, or equipment that's expensive to replace after a surge event. We commonly install surge protection as part of a panel replacement, since it's a relatively small addition once the panel itself is already open.

Permits and Inspection for Panel Work

Panel repairs involving individual breaker replacement are generally more straightforward, but a full panel replacement or a service upgrade requires a permit and a final inspection in South Florida jurisdictions. That inspection checks grounding, bonding, proper labeling of circuits, correct clearance around the panel for future access, and that the installation matches what was permitted. We handle the permit application and coordinate the inspection as part of the job, since an unpermitted panel replacement can create real problems later, particularly when a home is sold and the buyer's inspection turns up work that was never documented.

Utility coordination is part of this process too, since the utility has to disconnect and later reconnect service at the meter for a full panel swap, and that step happens on the utility's schedule rather than ours. We factor that coordination into the timeline we give you upfront, rather than treating it as a separate detail to sort out once the work is already underway.

What to Expect the Day of a Panel Replacement

A full panel replacement means the power to the building has to be shut off for part of the day while the old panel comes out and the new one goes in, and depending on the utility's process, there may be a period where even the main disconnect is offline while the utility connection itself is worked on. We walk through the expected timeline before the day of the work so there are no surprises about how long the building will be without power, and we sequence the work to get power restored as early in the process as reasonably possible.

Anything with a battery backup or that needs to hold settings through a power interruption, like certain thermostats, security systems, or medical equipment, is worth flagging to us before the day of the work so we can plan around it. We also confirm access to the panel location ahead of time, since a panel tucked behind landscaping, furniture, or stored items adds time to a job that otherwise runs on a fairly predictable schedule.

Commercial Panel Considerations

Commercial and commercial building panels carry their own considerations beyond what a typical single-family home panel deals with, including higher amperage services, panels feeding multiple tenant spaces, and equipment that can't tolerate an extended power interruption without real business impact. Coordinating a commercial panel replacement around business hours, tenant notification, and any equipment with special shutdown or startup procedures is a bigger part of the planning than the physical panel work itself in a lot of cases.

Multi-tenant buildings also raise a documentation question that a single-family home doesn't have: making sure every breaker in a shared panel room is labeled accurately for the space it actually feeds. Labels drift out of date as tenants change and internal renovations move walls and circuits around, and an outdated panel schedule slows down every future service call, not just ours. Updating and verifying that labeling is a routine part of any commercial panel work we do.

Talk to an Electrician About Your Panel

If your panel is buzzing, showing rust, running warm, or holding breakers that won't reset, call (954) 602-0050 before the problem gets worse. We evaluate panels for homes and businesses throughout Broward County, Aventura, North Miami, North Miami Beach, Sunny Isles Beach, Golden Beach, Boca Raton, and Delray Beach, and our wiring page and full services list cover the related work a panel evaluation sometimes uncovers.