Repair, replace or upgrade?
Many panel problems can be repaired: a single failed breaker, a loose lug, a corroded neutral bar or missing knockout covers. Other situations call for replacement — heat damage to the bus bars, panels with a history of breaker failures, or equipment that's simply at the end of its life.
An upgrade is a different decision driven by capacity. If you're adding an EV charger, heat pump, hot tub or shop, the question becomes whether your service size and panel can carry the new load. See panel replacement and panel upgrade for details on each.
What the work typically involves
Visual and thermal check
Look for heat discoloration, corrosion, moisture and damaged breakers.
Connection check
Verify main lugs, neutral and ground bars and breaker terminations are tight and correct.
Breaker and load review
Match breakers to wire sizes and review circuit loading.
Recommendation
Repair what can be repaired, or explain why replacement or an upgrade is the safer path.
Common reasons homeowners call
- Buzzing or humming from the breaker box
- A breaker that feels hot or won't stay on
- No space left to add circuits
- Home inspection noted a problem panel
- Water or rust inside the enclosure
Signs it is time to call an electrician
- Burning smell or scorch marks at the panel
- Panel cover warm to the touch
- Breakers trip without a clear overload
- Lights flicker across the house when appliances start
- Double-tapped breakers or unlabeled circuits
Safety considerations
Panels stay live inside. The panel's main service conductors remain energized even when the main breaker is off. Don't remove the dead-front cover, tighten connections or swap breakers yourself. If the panel is hot, smoking or buzzing loudly, keep clear and call now.
What an electrician will check
- Main lugs and service conductors
- Bus bar condition and breaker fit
- Neutral and ground bar terminations
- Breaker sizes versus wire gauge
- Moisture, corrosion and enclosure integrity
- Panel brand, age and known issues
Related electrical problems
Local pages for this service
Related residential services
Electrical Panel Replacement
Replacing outdated, damaged or problem-brand breaker panels and fuse boxes with a new, properly sized panel.
Electrical Panel Upgrade
Increasing your home's electrical capacity — typically 100A to 200A — for EV chargers, heat pumps, additions and modern loads.
Circuit Breaker Repair
Diagnosing breakers that trip, won't reset, buzz or feel warm — and fixing the circuit problem behind them.
Circuit Breaker Replacement
Replacing worn, damaged or incompatible breakers — including AFCI and GFCI breakers — with correctly rated parts.
Frequently asked questions
Sometimes. If a single breaker or loose connection is the cause, a repair may solve it. If the bus bar is damaged by heat or arcing, replacement is usually the safe option.
Many panels serve for decades, but lifespan depends on the brand, environment and how heavily the panel has been loaded. Corrosion, heat damage and breakers that no longer grip firmly are signs it's reaching the end.
Some older panels — including certain Federal Pacific Stab-Lok and Zinsco models — are widely flagged by inspectors because of concerns about breakers not tripping reliably. An electrician can identify your panel and explain your options.
Only if the panel is designed for it and the service can handle the load. Tandem breakers are allowed only in panels listed for them. An electrician should make that call.