How to Prevent Frozen & Burst Pipes in a Michigan Winter

Why Michigan pipes freeze

A Genesee County winter does not ask permission. When temperatures drop into the teens and single digits for a stretch — the kind of cold we see from December through February — any pipe running through an unheated or poorly insulated space is at risk.

Here is the physics that catches people off guard. Water expands as it freezes. The ice itself is not usually what splits the pipe. The real damage comes from the pressure that builds between the ice blockage and a closed faucet downstream. That pressure has nowhere to go, and eventually the pipe fails — sometimes far from the ice itself.

The pipes most likely to freeze are the ones you rarely think about:

• Pipes in exterior walls
• Lines in unheated crawl spaces, garages, and attics
• Basement runs near foundation vents or rim joists
• Outdoor spigots and any line feeding them

The prevention checklist

Most frozen-pipe calls we get were preventable with an hour of fall prep. Work through this list before the first hard freeze.

Outside the house

1. Disconnect and drain garden hoses. A connected hose traps water in the spigot, and that water freezes back into the wall.
2. Shut off and drain outdoor faucets. If you have interior shutoff valves for exterior spigots, close them and open the outside faucet to drain the line. Frost-free hose bibs still need the hose removed to work.
3. Blow out irrigation lines before the ground freezes.

Inside the house

• Insulate exposed pipes in crawl spaces, the garage, and along exterior walls with foam pipe sleeves. This is cheap and effective.
• Seal drafts near pipes — rim joists, foundation cracks, and gaps where lines pass through walls let cold air pool right against the metal.
• Know where your main shut-off is, and make sure everyone in the house does too. In an emergency, seconds matter.

On the coldest nights

• Open cabinet doors under kitchen and bathroom sinks so warm room air reaches the pipes, especially on exterior walls.
• Let a faucet drip. A pencil-thin trickle of cold water relieves pressure and keeps water moving, which is much harder to freeze. This one trick prevents a lot of bursts.
• Keep the heat on and no lower than the mid-50s if you travel. Never shut the furnace off entirely in winter.

If you own a rental, a cottage, or a home you leave for weeks — common around Fenton and the lake communities — consider having the system winterized and drained instead of relying on a thermostat and a prayer.

How to safely thaw a frozen pipe

Say you turn on a faucet and only a trickle comes out. You likely have a partial freeze. Act before it becomes a full block.

1. Open the faucet the pipe feeds, both hot and cold. This gives melting ice somewhere to go and relieves pressure.
2. Apply gentle heat to the frozen section — a hair dryer, a heat lamp, or towels soaked in hot water. Start near the faucet and work back toward the cold spot.
3. Never use an open flame. No blowtorches, no propane heaters aimed at a pipe. That is how house fires start, and it can crack the pipe outright.
4. If you can't reach it or it won't thaw, stop and call. Some freezes are inside walls or under slabs where guessing does more harm than good.

Keep the water moving once it starts to flow. And if you cannot locate the frozen section, our frozen and burst pipe repair crew can find it and thaw it without tearing your house apart.

What to do if a pipe bursts

A burst pipe is a genuine emergency, and calm, fast action limits the damage.

1. Shut off the main water valve immediately. This is the single most important step.
2. Open faucets to drain the remaining water from the lines.
3. Kill the power to any area that is getting wet, at the breaker, if you can do it safely.
4. Move belongings and start mopping or vacuuming standing water to limit damage.
5. Call for help. We answer emergency plumbing calls around the clock, and we will talk you through those first steps on the phone.

Water damage compounds by the minute, so do not wait until morning. Homes across Flushing Township and the surrounding towns lose finished basements every winter to a burst that ran overnight.

The takeaway

Frozen pipes are one of the few plumbing disasters you can almost entirely prevent. Insulate what is exposed, drain what is outdoors, drip a faucet when it gets brutal, and know where your shut-off is.

If you would rather have a pro winter-proof your home — or you are staring at a frozen or burst line right now — call us at (207) 419-2600. Same-day service, 24/7 emergency response, and no after-hours upcharge.