How to Winterize Outdoor Faucets Before the First Frost
Difficulty: EasyTime: 30–45 minutesUpdated 2026-08-31
A garden hose left connected through an Ontario freeze traps water in the hose bib, and expanding ice splits the pipe inside the wall. The damage usually isn't visible until spring, when the tap is turned on and water pours into the basement. Disconnecting hoses, closing the interior shut-off and draining the line takes half an hour and prevents a four-figure repair.
What you’ll need
- Adjustable wrench or pliers
- Small bucket and towels
- Insulated faucet cover (foam dome)
- Air compressor with a blow-out fitting, if you have irrigation
Disconnect Every Hose First
This is the step homeowners skip and the one that causes most burst hose bibs. Water trapped between the hose and the valve has nowhere to expand when it freezes.
Drain each hose fully, coil it and store it in a garage or shed. Leaving hoses on the ground through freeze-thaw cycles shortens their life considerably.
Close the Interior Shut-Off and Drain the Line
Most GTA homes have a dedicated shut-off valve for each exterior tap, usually in the basement near the joist bay directly behind the outdoor faucet. It may be a gate valve wheel or a quarter-turn ball valve handle.
Close it, then go outside and open the outdoor faucet fully. Leave it open all winter. Back inside, place a bucket under the bleeder cap on the shut-off valve and open it to drain the remaining water from the section of pipe.
- Label the shut-off valve with tape so you can find it next year.
- Frost-free sill cocks still need the hose disconnected to drain properly.
- Leave the outdoor tap in the open position through the winter.
- Fit a foam insulating cover over the outdoor spout.
Don't Forget the Extras
Irrigation systems, hose reels and outdoor kitchen lines all hold water. Sprinkler systems in Ontario need a compressed-air blow-out; done wrong, high pressure destroys the heads, so many homeowners book this with the installer.
Also check the shut-off for a garage bib, a deck-side tap or an outdoor shower — these get forgotten far more often than the front and back taps.
When to call a pro instead
- No interior shut-off valve for the outdoor tap
- A valve that won't close fully or drips after closing
- Irrigation blow-out with compressed air
- Any tap that already leaks or feels loose in the wall
- Suspected freeze damage in a pipe you can't reach
Tell us the job and we’ll connect you with trusted local pros. Free, no obligation.
Frequently asked questions
- When should I winterize outdoor taps in Toronto?
- Before the first hard frost — late October is a safe target across the GTA, and earlier in Caledon, Uxbridge and other outlying areas.
- Do frost-free hose bibs still need to be winterized?
- Yes. A frost-free sill cock only drains properly when the hose is disconnected and the tap is left open.
- How do I know if an outdoor faucet pipe already burst?
- Turn the water on in spring while someone watches the ceiling and wall inside. Water appearing indoors, or a tap with no pressure, means a split pipe.