Key takeaways
- The part that freezes is the pipe inside the wall, not the hose.
- Close the interior shut-off valve first, then drain the line completely.
- Remove hoses, splitters and timers - an attachment left on the tap is a top cause of burst faucets.
- A frost-free faucet still splits if a hose is left attached and traps water in the barrel.
- Leave the outdoor spigot open all winter and thaw a frozen faucet with warm air, never a flame.
Almost everyone winterizes the hose and forgets the thing the hose is attached to. That is backwards. A hose left out over winter is a forty-dollar mistake; an outdoor faucet that freezes and splits inside the wall is a plumbing repair, a wet basement wall and a hole in the siding. The faucet is the part that actually needs a routine.
Why the spigot freezes before the hose does
The hose is outside in the cold, and so is the faucet - but only half of it. Behind the wall, the pipe that feeds the spigot runs through a cavity that may be warm, or may be exactly as cold as outside, depending on how the house was built. Water sitting in that pipe has nowhere to expand when it freezes. That is why the damage usually shows up as a burst inside the wall, where you cannot see it, rather than at the handle.
Step 1: shut off the water inside
Look for an interior shut-off valve on the pipe feeding the outdoor faucet - usually a small gate or ball valve in the basement, crawl space or utility room. Close it. If there is no interior valve, the outdoor faucet is fed directly from the main, and the rest of this routine matters even more: your only protection is draining and insulating. Many stop-and-waste valves have a small bleeder cap that opens a drain port when you close the valve, which is exactly what you want here.
Step 2: drain the line completely
With the interior valve closed, open the outdoor spigot and let it run until it stops - and then wait, because a surprising amount of water sits in the low points. If your interior valve has a bleeder, open it and let the line empty into a bucket. Leave the outdoor spigot open for the winter rather than closing it: with the line drained and the tap open, any water you missed has room to expand instead of cracking the valve body. This is also the moment to bring in the hose, drain it properly and store it indoors.
Once the tap is empty, the hose is next - our guide to storing a garden hose for winter covers draining, coiling and storing it so it survives to spring.
Step 3: protect what is still outside
Fit an insulated faucet cover over the spigot. It is not a substitute for draining, but it slows heat loss at the point where the pipe passes through the wall, which is where frost drives deepest. Seal any visible gap between the pipe and the siding with caulk or foam - a gap there is a direct cold-air path to the pipe. If the faucet sits on a wall that takes the prevailing wind, that gap matters more than the cover does.
| Step | What it protects | Why it matters |
|---|---|---|
| Close the interior shut-off valve | The pipe inside the wall | Removes the water that actually freezes and splits |
| Open the spigot and drain the line | Valve body and stem | Trapped water gets somewhere to expand |
| Remove hose, splitter and timer | Frost-free barrel | Any attachment defeats the self-draining design |
| Fit an insulated cover, seal the wall gap | Exposed spigot and the wall penetration | Slows heat loss exactly where frost drives deepest |
Frost-free faucets: what is different
A frost-free sillcock looks like an ordinary tap but its valve seat sits on a long stem, inside the wall, in the warm part of the cavity. Water behind the seat drains out when you close it, so the barrel outside never holds water. That design fails in one specific way: if a hose, splitter or timer is left attached, the barrel cannot drain, water sits in it, and the faucet splits exactly like a cheap one. Removing every attachment is not optional on a frost-free faucet - it is the whole mechanism.
If the faucet is already frozen
Do not pour hot water on it and do not use a torch. Warm the pipe, not the handle: a hair dryer on low, a heat gun on its lowest setting, or towels soaked in hot water and wrung out, wrapped around the pipe where it enters the wall from inside. Work slowly and stop when water flows. Once it thaws, watch the joint for weeping for the next day or two - a split often leaks only when the ice is gone and pressure returns.
The checklist before the first freeze
One. Hose disconnected and drained. Two. Splitter and timer indoors. Three. Interior shut-off closed. Four. Bleeder opened or line drained. Five. Outdoor spigot left open. Six. Insulated cover fitted. Seven. Gap at the wall sealed. Eight. Irrigation lines, if you have them, blown out or drained. It is a fifteen-minute list, and it is the difference between a normal spring and a plumber's visit.
The bottom line
The spigot is the part of your watering setup that has to survive winter, and it survives on three things: water off inside, line drained empty, and outside protected at the wall. Do it before the first hard freeze, while your hands still work outside comfortably - and leave the outdoor tap open all winter so the last of the water has somewhere to go.
Frequently asked questions
Do I need to shut off the water to my outdoor faucet in winter?
If your home has an interior shut-off valve for the hose bib, yes - close it and drain the line. That removes the water that would otherwise freeze inside the wall.
Should I leave the outdoor faucet open in winter?
After the line is drained, leaving the spigot open gives any residual water room to expand instead of cracking the valve body. Close it again in spring.
Can a frost-free faucet still freeze?
Not usually from cold alone - its valve seat sits on a long stem inside the heated wall. It freezes when a hose, splitter or timer is left attached, trapping water in the barrel where it cannot drain.
How do I thaw a frozen outdoor faucet?
Warm the pipe, not the handle: a hair dryer on low, a heat gun on its lowest setting, or hot towels wrapped around the pipe where it enters the wall from inside. Never use an open flame.
Related reading
- How to store a garden hose for winter (so it lasts more than one season)
- Fall watering: how much water your lawn and garden still need before winter
- Watering while you're away: hose timers and splitters that don't leak
The spigot is only half of that job - the hose has to come in as well. Ours is the reinforced expandable garden hose, and it drains in seconds.