Protecting Pipes on Freeze Nights in the Phoenix Valley

Rare freezing nights can still burst exposed pipes and irrigation backflow devices. Simple steps before a cold snap.

Why desert homes still freeze

The Phoenix Valley rarely freezes, but overnight lows can drop below freezing a few times each winter. Exposed pipes, hose bibs, and irrigation backflow preventers are the most common failures.

Watch the forecast

When overnight lows are expected near or below 32°F, plan the afternoon before. A few minutes of prep is cheaper than a burst pipe.

Protect outdoor plumbing

Disconnect and drain garden hoses. Cover hose bibs with foam or insulated faucet covers. Insulate or wrap exposed pipes and irrigation backflow devices according to the manufacturer or a plumber's guidance.

Indoor checks that help

Open cabinet doors under sinks on exterior walls so warmer room air can reach the pipes. Know where your main water shutoff is before you need it.

If a pipe freezes or bursts

If a pipe freezes, leave the faucet open slightly and warm the area gently. If a pipe bursts, shut off the main water supply first, then call a plumber. Avoid open flames when thawing pipes.

When to call a pro

Call a plumber for burst pipes, slab leaks, or if you cannot locate or operate the main shutoff. For irrigation backflow issues after a freeze, a plumber or irrigation specialist can help.

This guide is general information, not professional advice. For your situation, consult a qualified professional.