In most homes, you should drip at least one faucet during freezing weather, and often one in each area of the house that has vulnerable plumbing.

Quick Scoop

  • Many plumbers say one dripping faucet can be enough if it is the fixture farthest from where water enters your home, because it pulls water through the longest run of pipe and keeps it moving.
  • Newer guidance often recommends dripping one faucet in each area or level of your home (for example, one in the kitchen and one in a bathroom, plus any areas over garages or in additions), especially if the cold is severe or prolonged, because any branch line can freeze.
  • Prioritize faucets on exterior walls, over unheated spaces (like garages, crawl spaces, or basements), or in rooms that tend to get very cold, as those pipes are at the highest risk.

Practical Rule of Thumb

  • Apartment or small home with simple layout:
    • Drip at least one faucet , ideally the one farthest from the main shutoff and on (or near) an exterior wall.
  • Larger or multi-story home:
    • Drip one faucet per floor/zone (for example: upstairs bath, downstairs kitchen, and any cold add‑on rooms).
  • Very cold snap (around 20 °F / -6 °C or below, or power outage in freezing temps):
    • Err on the safe side and drip all faucets in vulnerable areas ; a tiny drip is usually inexpensive compared with the cost of a burst pipe.

How Much And How Long

  • A small, steady drip or light trickle (about a drop every few seconds) is usually enough to keep water moving and to relieve pressure if ice forms.
  • Let faucets drip while temperatures remain below freezing and especially below about 20 °F, and continue until outdoor temperatures are safely above freezing and pipes have warmed up.

If your home has an especially complex plumbing layout or past freeze issues, a local plumber can give a house‑specific answer on exactly how many faucets you should drip and which ones to focus on.

Information gathered from public forums or data available on the internet and portrayed here.