Should I Drip My Faucets?

When It Makes Sense

• Good fit: Forecasts call for sustained temperatures below freezing, especially overnight for several hours, and your plumbing runs through exterior walls, unheated crawl spaces, attics, basements, or a garage.
• Good fit: You have a history of frozen pipes at a specific fixture, and letting that faucet drip is the simplest way to keep water moving through the most vulnerable section of pipe.

When You Should Avoid It

• Warning sign: Your plumbing is entirely inside insulated, heated spaces and local temperatures are only briefly dipping below freezing.
• Warning sign: You are under water-use restrictions, rely on a septic system that could be strained by continuous flow, or the fixture wastes hot water that increases energy costs.

Pros and Cons

Pros

• Moving water freezes more slowly than standing water, so a small drip can reduce the chance of a pipe freeze and the burst that often follows.
• It is simple to implement and usually costs far less than repairing burst pipes, water damage, and mold remediation.

Cons

• A continuously dripping faucet wastes water and can raise your water bill, with costs adding up over a long or severe cold season.
• It is not a guarantee; extreme cold or poorly protected pipes can still freeze even when a faucet is dripping.

Decision Checklist

• Will temperatures stay below freezing long enough to threaten the pipes in this building?
• Do the relevant pipes pass through unheated, exterior, or under-insulated areas?
• Have I asked a licensed plumber or building professional about the best freeze-protection plan for this specific home?

Alternatives to Consider

Insulate exposed pipes with pipe sleeves or foam wrap, seal drafts and air leaks near plumbing, open cabinet doors so warm indoor air can reach fixtures, keep the thermostat at a steady temperature day and night, drain and shut off outdoor hose bibs, and install heat tape or heating cable on high-risk runs. For severe climates, mobile homes, or chronically freezing pipes, a plumber may recommend re-routing lines, adding insulation, or upgrading to freeze-resistant plumbing.

Final Recommendation

Drip faucets during hard freezes when you have vulnerable, poorly insulated, or exterior plumbing, but consider skipping it if your pipes are well protected and the cold snap is brief. Combine dripping with insulation and draft sealing for the best protection. If your home has a history of frozen pipes, very old plumbing, or you are unsure which runs are at risk, consult a licensed plumber for guidance tailored to your property.