Is My Home's Electrical System Safe After a Storm or Flood?
Post-storm electrical rules: every downed line is live until the utility says otherwise, flooded panels and outlets are never re-energized without inspection, what tripping GFCIs after water mean, and how to hand the house back to the grid when power returns.
After a storm, two absolutes govern everything electrical: every downed line is live until the utility says otherwise, and any circuit, outlet, or panel that took water does not get re-energized until a licensed electrician has inspected it. Storm-damaged electrical systems rarely announce themselves — the wire that got soaked works today and starts a fire in October. This guide covers the outside hazards, the inside decisions, and the hand-back to the grid when power returns.
What do I do about downed lines and damaged service equipment?
Distance and a phone call — that's your whole job. Lines can be re-energized remotely, can back-feed from a neighbor's generator, and can energize fences, puddles, and the ground around them; there is no visual difference between a dead line and a live one. Also look up before you touch your own equipment: the service drop, weatherhead, and meter mast on the side of your house are commonly damaged by wind and falling limbs, and if the mast is bent or pulled away from the wall, the utility may refuse to restore power until a licensed electrician repairs it — repairs on the house side of the meter are the homeowner's responsibility, not the utility's. Photograph the damage for insurance and get it on a licensed electrician's schedule early; after a big storm, that queue grows by the hour.
The panel or outlets got wet — what's actually at stake?
Water in electrical equipment doesn't just create an immediate shock risk — it starts corrosion inside breakers, bus bars, and wire terminations that degrades them long after everything looks dry. A breaker that took floodwater can fail to trip when you need it most, which is why the industry answer is blunt: submerged breakers, outlets, and panelboards get replaced, not dried out. The homeowner's job is triage, not repair: if the outage hasn't already de-energized the house and flooded circuits are involved, shutting off the main breaker (only if the panel itself is dry and safely reachable) is reasonable — everything past that, including pulling receptacles “just to look,” is licensed work. If your panel was already on the older or crowded side, storm damage is often the moment the panel warning signs conversation becomes a replacement decision.
My GFCIs keep tripping after the storm — bad sign or good sign?
Mostly a good sign: they're doing their job. A GFCI trips when current leaks to ground — and moisture in an outdoor receptacle, a soaked extension cord, or a damp junction box is exactly that leak. After a storm, a GFCI that trips once, resets, and holds was probably clearing residual dampness. The pattern that matters is trip-reset-trip: a GFCI (or any breaker) that won't hold is telling you moisture or damage is still present in that circuit, and repeatedly resetting it is overriding a safety device instead of hearing it. Unplug everything on the circuit and try once more; if it still trips, leave it off and have the circuit inspected — same hard-stop rule as the troubleshooter's repeat-tripping paths.
Power is coming back — how do I hand the house back to the grid?
In stages, with the generator out of the loop first. Portable users: shut the generator down, disconnect its cords or flip the interlock back to utility before the grid feeds the house — never let the two meet. Standby owners: the automatic transfer switch handles the swap; your job is to confirm the unit returned to standby and note the run hours for its next service. Then bring the house up gently: big loads (AC, dryer, oven) staggered over several minutes rather than all at once, and the AC last, after voltage has held steady — restoration surges are why the outage guide had you unplug electronics in the first place. Anything that buzzes, smells hot, flickers, or trips on the way back up gets shut off and inspected under TECL 558211-grade eyes, not retried.
Quick answers
How far should I stay from a downed power line?
At least 35 feet — and farther if it's in water or arcing. Assume every downed line is live: report it to the utility and call 911 if it's blocking a road or driveway. Never drive over a downed line.
Do flooded outlets and breakers really need replacement if they still work?
Yes. Floodwater corrodes contacts and mechanisms from the inside — a submerged breaker may carry power fine but fail to trip during a fault, which is the one job it exists to do. Replacement is the standard, not drying out.
Who fixes the meter mast if a tree pulls it off my house?
A licensed electrician — the weatherhead, mast, and service entrance on the house side of the meter are the homeowner's responsibility. The utility typically won't reconnect until that repair passes inspection, so book it early after a storm.
Flooded circuits, damaged masts, and won't-hold breakers sorted by licensed electricians — TECL 558211, with a written report for your insurer.
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