Winterizing Outdoor Faucets to Prevent Burst Pipes

TL;DR: A forgotten outdoor faucet is a classic cause of burst pipes. Four steps protect them before the first freeze.

_Last reviewed: July 2026 · 2 min read_

A garden hose left attached over winter is one of the most common causes of a burst pipe — water trapped in the faucet freezes, expands, and cracks the pipe inside the wall. Four quick steps before the first freeze prevent it: disconnect hoses, cover the faucets, shut the interior valve, and check for drips.

Why disconnect garden hoses for winter?

Disconnect and drain all garden hoses. A connected hose traps water in the spigot, where it freezes and forces ice back into the pipe inside your wall — even on "frost-free" faucets. This single step prevents most outdoor-faucet pipe bursts. Drain the hoses and store them so they don't crack either.

Do insulated faucet covers help?

Yes. Add an insulated faucet cover (a foam dome that slips over the spigot) for an extra layer against hard freezes. They're a couple of dollars and take seconds. Combined with disconnecting the hose, they protect the faucet through cold snaps — cheap insurance against an expensive repair.

Should I shut off the interior supply valve?

If you have one, yes. Shut off the interior shut-off valve that feeds each outdoor faucet (often in the basement or crawlspace), then open the outdoor faucet to drain the remaining water. With the line drained and isolated, there's nothing left to freeze. This is the most thorough protection in very cold climates.

What's the final check before winter?

Check for drips before the first hard freeze. A faucet that won't fully shut off leaves water in the line to freeze. Fix any drip (see faucet repair), confirm everything's drained, and add it to your fall checklist so it's never forgotten.

Track it each fall

Logging your winterizing steps means you won't skip the faucet that floods a wall. Okoniq Property Hub keeps it with your home maintenance records in one private place.

Frequently asked questions

Are frost-free faucets safe to leave alone?

Frost-free (frost-proof) faucets resist freezing, but only if the hose is disconnected and they're pitched to drain. Always disconnect the hose — that defeats their protection.

What if a pipe already froze?

Shut off the water, open the faucet, and thaw gently (never with an open flame). Watch for leaks as it thaws — a cracked pipe will leak once water flows again.

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FAQ

When should I winterize outdoor faucets?

Winterize before the first hard freeze in your area — typically late October through early November in most of the US, earlier in northern states. Check your local frost dates and complete the steps at least a week before the forecast dips to 32°F overnight.

Can I leave a frost-free faucet uncovered?

You can, but adding an insulated cover is still recommended during prolonged freezes below 20°F or if the faucet is on a north-facing wall. The cover adds a second layer of protection and costs only a few dollars.

How do I find the interior shut-off valve for my outdoor faucet?

Look in the basement, crawlspace, or utility room on the interior wall directly behind the outdoor spigot. The valve is usually within a few feet of where the pipe exits to the outside — follow the cold-water line from the faucet back inside.

What happens if I forget to disconnect the hose just one winter?

Even one winter with a hose attached can cause a burst pipe if temperatures drop below freezing for several hours. The trapped water freezes, expands, and can crack the pipe or faucet body — leading to a hidden leak inside the wall when it thaws.