Insulate exposed pipes in unheated areas (crawl spaces, garages, basements, attics).

Seal exterior penetrations (where pipes enter walls/floors) to block cold drafts and moisture.

Open cabinet doors under sinks during cold snaps.

Plug in a small space heater (safe distance, auto shutoff) in cold-prone areas during extreme freeze warnings.

Inspect for leaks regularly— constant humidity can hide slow drips that become major issues.

Run dehumidifiers in basements and enclosed spaces to prevent pipe corrosion.

Ensure proper ventilation around plumbing chases and water heaters.

Shut off and drain outdoor faucets, using the indoor shutoff if your home has them.

Install insulated hose bib covers — very effective against sudden overnight freezes.

Check storm drainage around your home — standing water increases pipe corrosion risks.

Clear gutters and downspouts to prevent water pooling near exterior plumbing walls.

Winterize sprinkler systems (blow-out required in inland or elevated PNW areas).

Drain and store rain barrels, or install freeze-proof spigots.

Shut off the main water supply.

Drain all plumbing lines.

Flush toilets and add RV/marine antifreeze to traps and bowls.

Know where your main shutoff valve is — frozen pipes often occur after outages.