Here’s the thing most people don’t think about: when water freezes, it expands. That’s just physics. And if there’s water trapped inside your hose, nozzle, or spigot when a hard freeze hits, that expanding ice has nowhere to go. So it pushes. And something gives — usually the spigot itself, or the pipe connected to it inside your wall.
That last part is what really gets people. It’s not just the hose or the faucet outside you’re worried about. It’s what’s behind it. Pipes run through your walls, and if one of those bursts, you might not even notice right away. Water damage can quietly soak insulation, rot wood, and grow mold before you see a single drop.
Illinois Extension warns that any water trapped in a nozzle or spigot during a hard freeze can expand to the point of bursting solid metal or plastic. Metal. It can crack metal.
And freezing temperatures aren’t even the only risk. Even in milder winter conditions, professional plumber Megan Doser notes that leaving a hose attached can cause a dripping spigot, a failed vacuum breaker, corrosion at the hose threads, or a leaking hose connection. None of those are fun to deal with.
There’s also the long-term problem: if you leave a hose connected year-round, the metal fitting can corrode and literally fuse to the spigot — which means when you finally do try to take it off, it won’t budge. Now you’ve got a different headache.
The fix is genuinely simple. Before your first freeze of the season, disconnect the hose, drain it, and store it somewhere it won’t sit in the cold. Takes five minutes. Potentially saves you thousands.