How to Prevent Frozen Pipes During a Rogue Valley Cold Snap
Cold snaps do happen here. When water inside a pipe freezes and expands, the pipe can crack or burst — and the leak often appears later, when the ice thaws.
Quick Answer
To prevent frozen pipes:
Insulate exposed pipes in crawl spaces, garages, and unheated areas
Disconnect garden hoses and protect outdoor faucets
Seal drafts near pipes, vents, and crawl-space openings
Open cabinet doors and let a faucet drip on very cold nights
Keep the heat on — and know where your main shut-off valve is
Why Frozen Pipes Burst
Water expands when it freezes, and inside a pipe that expansion creates pressure until the pipe cracks, splits, or weakens. Often the pipe doesn’t leak while frozen — the leak appears when temperatures rise and the ice melts. That’s why a frozen pipe can become an emergency after the coldest weather has passed.
Know Your Risk
Pipes Most Likely to Freeze
If a pipe is exposed to cold air without enough insulation, it deserves attention before a freeze.
Before & During
Prepare, Then Protect
Before a cold snap
Insulate exposed pipes (mind bends and joints), disconnect hoses and drain outdoor lines, seal drafts around penetrations, and locate your main shut-off valve.
During freezing temps
Open cabinets on exterior walls, let a faucet drip to keep water moving, keep heat steady even when away, and watch for reduced flow — a trickle may mean a pipe is starting to freeze.
If a Pipe Freezes
If a pipe bursts
Shut off the main water supply, open a low faucet to relieve pressure, move belongings away, and avoid electrical hazards. Then call for pipe repair or our emergency plumber.
Don’t Forget Outdoor & Rural Plumbing
Outdoor faucets, hose bibs, and irrigation connections are often the first to freeze — disconnect hoses, drain exterior lines, and cover exposed hose bibs. Rural homes may have longer water runs, crawl-space piping, or well systems; know where the pressure tank, shut-offs, and exposed lines are. See well water pressure problems.
Questions & Answers
Frequently Asked Questions
At what temperature do pipes freeze?
Should I let faucets drip during a freeze?
Can hot water pipes freeze too?
Should I use a torch to thaw a frozen pipe?
How do I know if a pipe froze?
What should I do if a pipe bursts?
Related Services & Guides
Frozen pipes can turn into leaks or burst pipes. These pages help: