What to Do If Your Breaker Box Starts Smoking

Smoke or burning smell from a breaker box? Evacuate if needed and call 911 for fire risk. For urgent electrical dispatch after the scene is safe, call (512) 994-1596.
This Is a True Emergency
If you see smoke, smell burning plastic, or hear a loud buzzing or popping coming from your electrical panel (breaker box), you are facing a severe and immediate fire hazard. Do not ignore it, and do not attempt to fix it yourself.
Step 1: Do NOT Open the Panel Door
Your instinct might be to open the metal door to see what is wrong. Do not do this. If there is an active electrical fire or severe arcing inside, opening the door introduces oxygen, which can cause the fire to flash outward into your face. It also exposes you to a lethal shock hazard.
Step 2: Evacuate and Call 911 (If Necessary)
If there are visible flames or heavy, thick smoke pouring from the box, evacuate your home immediately and call 911. A house fire can spread behind the walls in minutes.
Step 3: Shut Off Main Power (Only if Safe)
If there is only a light smell or minor smoke, and the main breaker is located outside (such as near your meter) away from the smoking sub-panel, you can carefully flip the main breaker to the OFF position. Do not touch the smoking panel itself. If you cannot safely shut off the power, wait for professionals.
Step 4: Call a 24/7 Emergency Electrician
Once everyone is safe and the power is off (or the fire department has cleared the scene), you need an immediate professional assessment. Smoking panels are typically caused by loose connections, faulty breakers, or severe water intrusion. You will need a certified professional, like an emergency electrician in San Antonio, to rebuild or replace the damaged components.
Common Causes of a Smoking Breaker Box
- Loose Connections: Wires expand and contract over time. A loose wire creates high resistance, generating extreme heat that melts insulation.
- Overloaded Circuits: Drawing too much power through a breaker that fails to trip.
- Moisture/Corrosion: Water leaking into the panel causes shorts and severe arcing.
Frequently Asked Questions
A: Absolutely not. A smoking panel usually means the bus bar (the metal spine the breakers attach to) is damaged. The entire panel must be inspected and likely replaced to be safe.
A: Depending on the size (e.g., 200-amp) and current city codes, a full panel replacement typically ranges from $1,500 to $3,000. It is a major job that requires a permit and inspection.
Common electrical problems in Texas homes
If you're reading this you probably ran into one of the situations below — these five buckets cover roughly 70–80% of the electrical calls dispatched across Houston, Dallas, Austin, and San Antonio each week. Each item includes the actual fix and honest cost range, not marketing fluff.
Half the house lost power, no breaker tripped
Loose main lug, failing bus bar, or utility service issue. Panel inspection is priority — bad connections in a panel can start fires. Diagnostic $150-250; repair depends on findings.
Outlet feels warm or has visible scorch marks
Immediate hazard. Kill the breaker to that circuit and don't use it until inspected. Backstab connections and aluminum-branch wiring are the usual culprits. Repair $180-400 per outlet including proper connections.
New appliance keeps tripping the breaker
Either genuinely overloading the circuit or the breaker itself is worn. Never upsize a breaker to make tripping stop — that's how houses burn down. Correct fix is either a dedicated circuit ($400-900) or investigating the appliance.
Lights flicker briefly across the whole house
Usually neutral connection issue at the panel or meter. This is high-priority — a floating neutral can send 240V into 120V appliances and destroy electronics. Diagnostic $180-320.
Want a Level 2 EV charger installed
40-60A dedicated 240V circuit from the panel. Straight-shot install with panel space available: $650-1,200. Long conduit run or panel upgrade needed: $1,500-3,500.
Honest electrical pricing in Texas (2024–2025)
Ranges below are collected from independent, licensed Texas contractors — not a franchise call center. Every dispatched job gets a written estimate before work starts, so you always know the number before you approve.
| Scope | Typical range |
|---|---|
| Diagnostic / service call | $95 – $180 |
| Breaker replacement (standard 15/20A) | $140 – $250 |
| GFCI outlet install | $120 – $220 |
| Panel upgrade 100A → 200A | $1,800 – $4,500 (utility coordination required) |
| Level 2 EV charger install (40A, 30 ft run) | $650 – $1,600 |
| Whole-home Type 2 surge protector | $350 – $650 installed |
Prices exclude sales tax. After-hours (9pm–7am) and weekend calls typically add $25–75 depending on trade.
What to expect when the tech arrives
Every dispatched contractor follows the same clean process regardless of which Texas metro you're in. This is what a normal on-site visit looks like:
- Tech arrives with meters, thermal camera (for hot connections), common breakers.
- Walks the panel and problem circuit, reads voltage/amperage under load.
- Isolates the fault to a specific breaker, wire run, device, or fixture.
- Writes estimate; permits pulled if scope requires them.
- Executes repair, retests, and (for permitted work) coordinates inspection.
Seasonal notes for Texas electrical
Storm season (April-October) brings surges — this is when whole-home surge protection pays for itself. Winter cold snaps overload grid and trip weak panels. Fall is the ideal time to test GFCIs and inspect the panel for corrosion after summer humidity.
Warranty & materials
Labor warranty from Texas electricians is typically 1-2 years. Panels: Square D QO 10 year guaranteed, Eaton BR/CH lifetime for interrupting rating. Generac generators: 2-5 year residential warranty with 10-year extended optional. Register EVERY generator install.
Frequently asked
Why does my breaker keep tripping in your Texas city?
A breaker's job is to trip — that's the failure mode you want. The question is why. Common causes: (1) overloaded circuit (too many high-draw appliances on one line), (2) short circuit in appliance or wiring, (3) ground fault (wet outlets, damaged cord), (4) worn breaker itself. If it trips instantly on reset with nothing plugged in, that's a short and needs immediate attention. If it trips under load only, likely overload — but always diagnose rather than upsizing the breaker.
How much does an electrical panel upgrade cost in your Texas city?
For a straightforward 100A→200A upgrade with the utility on-side and no ancillary work, budget $1,800–3,200. Add $600–1,500 if the meter base needs replacement, service mast needs upgrading, or the grounding electrode system is deficient. Permits and inspection are part of the price of any legitimate panel upgrade.
Do I need a permit for electrical work?
Any work touching your service panel, main service, or new circuits legally requires a permit and inspection in most Texas jurisdictions. Simple like-for-like device replacements (outlets, switches, light fixtures) typically don't. A licensed electrician handles the permit filing as part of the job.
What size EV charger should I install?
For most EVs, a 40A hardwired Level 2 charger (delivering ~9.6 kW) is the sweet spot — refills the average commute in 4–6 hours. Larger 48–60A units make sense for large-battery trucks (F-150 Lightning, Silverado EV). A dedicated 240V circuit and NEMA 14-50 receptacle or hardwired install are both common.
Where Texaserv dispatches electrical in Texas
Every job routes to a licensed contractor already working in the metro. Click through for the local pricing, response bands, and licensed contractor details: