Frozen Pipes in Minnesota: How to Prevent Them and What to Do When One Bursts

You wake up and turn on the bathroom faucet. Nothing comes out. Outside, the temperature dropped to eight below overnight, and somewhere in your home, a pipe has frozen solid. Whether it has already burst or is about to, the clock started running without you knowing it. The average burst pipe claim in the United States runs over $27,000, and frozen pipes in Minnesota winters produce that kind of damage more reliably than almost any other single weather event. 

This post covers every stage of handling frozen pipes in Minnesota, from prevention before the season starts to what to do in the first 30 minutes when one has already burst.

The most important things you can do right now: insulate exposed pipes in attics and crawl spaces, keep your home at a minimum of 55 degrees Fahrenheit through winter, disconnect all garden hoses before the first freeze, and locate your main water shutoff valve before you ever need it.

Minnesota winters do not produce isolated cold snaps. They produce sustained periods of extreme cold that last for days or weeks at a time. Pipes in this region face repeated stress across an entire season, not a single overnight event.

From 2024 through June 2025, State Farm alone processed more than 20,000 frozen pipe claims totaling over $628 million in paid losses. Pipes become most vulnerable once temperatures drop below 20 degrees Fahrenheit. From 1991 to 2020, the Twin Cities averaged 22 days per year when temperatures dropped below zero degrees Fahrenheit, with many more nights in the range where pipes are most at risk.

That is what makes frozen pipes in Minnesota such a consistent source of serious home damage. Most homeowners insulate against the cold outdoors without thinking about the cold already sitting inside attics, crawl spaces, and exterior wall cavities. That oversight is where most claims begin.

Each location below is a known source of frozen pipes in Minnesota homes, and each has a specific vulnerability. Knowing which applies to your home tells you exactly where to focus before the temperature drops.

1. Attic pipes
   Unheated attics are the most common location for frozen and burst pipes, according to Philadelphia Insurance Companies’ analysis of 433 burst pipe claims. Most homeowners do not know there is plumbing running through that space until a pipe bursts and water appears on the ceiling below.

   How to check it: Go into your attic in October and locate any pipes. If they have no insulation wrap, they are at risk before the first hard freeze.

2. Crawl spaces and basement rim joists
   The framing band where your foundation meets the floor is often poorly sealed. Cold air moves through gaps and sits directly against pipes running through that space.

   How to check it: Walk the perimeter of your basement and look for missing insulation along the rim joist. Drafts near pipe penetrations are the confirmation.

3. Pipes running along exterior walls
   Kitchen and bathroom supply lines built into outside-facing walls depend on interior heat reaching them. When cabinet doors stay closed during a cold snap, that heat pathway shuts down.

   How to check it: Open the cabinet under any sink on an exterior wall during a stretch of cold weather. If the cabinet interior feels significantly colder than the room, that pipe is at elevated risk.

4. Outdoor spigots and connected interior pipes
   Water trapped in a connected garden hose freezes back through the spigot and into the pipe behind it. This is one of the most common frozen pipes homeowners experience in Minnesota, and it costs nothing to prevent.

   How to check it: If your garden hose is still attached to the outdoor spigot right now, disconnect it today.

5. Pipes through garages and unheated utility spaces
   Any pipe passing through a garage, uninsulated utility room, or unheated section of the home is in the same risk category as an exterior pipe the moment the temperature drops.

   How to check it: Trace your main supply line from its entry point to the water heater. Any section passing through an unheated space needs insulation before winter.

These steps protect against frozen pipes in Minnesota from the highest impact to the lowest cost. Do the first three before the first freeze of the season.

1. Insulate exposed pipes in attics, crawl spaces, and exterior walls
   Foam pipe sleeves cost under five dollars per foot at any hardware store and take minutes to install on accessible pipes. This single step eliminates the most common source of frozen pipe claims.

2. Keep your home heated to at least 55 degrees Fahrenheit at all times
   This applies when you travel, when you leave for the holidays, and during any overnight absence in cold weather. Insurance industry guidance recommends 55 degrees as the minimum temperature to maintain in any occupied or vacant home during winter. A single night with the heat off is enough to freeze an exposed pipe.

3. Let faucets drip during extreme cold
   Moving water is significantly harder to freeze than standing water. When temperatures are forecast to be below 20 degrees, let faucets fed by exposed pipes drip slowly overnight. This is especially important for pipes along exterior walls.

4. Open under-sink cabinet doors on exterior walls
   This allows room-temperature air to reach pipes behind the cabinet. It costs nothing and takes seconds. Do it any night the temperature is forecast to drop hard.

5. Disconnect garden hoses and install faucet covers on outdoor spigots
   Foam faucet covers are available at hardware stores for under ten dollars each and install in under a minute. Leave them on from November through March.

6. Seal gaps where cold air enters around pipes
   Check where supply lines enter through the foundation or exterior walls. Seal any visible gap with expanding foam or caulk. Cold air moving across a pipe at 10 degrees Fahrenheit freezes it far faster than ambient temperature alone would suggest.

7. Locate your main water shutoff valve right now
   This is not prevention, but it is essential preparation for frozen pipes in Minnesota homes. If a pipe bursts, knowing exactly where this valve is means the difference between a contained repair and a flooded basement. Find it, test that it turns freely, and make sure every adult in the household knows where it is.

If a pipe has already burst and water is spreading, our emergency water damage response is available 24 hours a day.

1. Shut off the main water supply immediately
   Do not search for the source of the burst first. Go directly to the shutoff valve. A small crack in a pipe can release over 250 gallons of water per day, damaging floors, walls, ceilings, and everything in its path. Every second the water runs adds to the scope of the restoration job.

2. Do not use electrical switches, outlets, or appliances near the water
   If water has reached flooring, walls, or ceilings near any electrical source, treat the space as a hazard until the power to that area is confirmed off at the breaker. Water and electricity in the same space is a life-safety issue before it is a property damage issue.

3. Document everything before you touch anything
   Photograph the burst location, the water spread, the visible damage, and any belongings sitting in the water. Add timestamps to every photo. Your insurance company requires evidence of pre-remediation conditions to process your claim at full value. Do not move anything until you have this documentation completed.

4. Call a licensed plumber to repair the burst pipe
   First Call Restoration handles the water damage restoration after the burst. The physical pipe repair requires a licensed plumber. Both calls need to happen as fast as possible and should run in parallel, not sequentially.

5. Call First Call Restoration for emergency water damage response
   Water damage and freezing account for nearly 23 percent of all homeowners’ insurance losses in the United States, according to the Insurance Information Institute. The difference between a mid-range claim and a catastrophic one is almost always how quickly professional extraction begins. Our emergency services team responds to frozen pipes in Minnesota homes throughout the Twin Cities and the surrounding metro.

   A shop vac removes surface water. We remove the water inside your walls, your subfloor, and your insulation, where mold will grow if it is not professionally extracted and dried.

Finding water on the floor or ceiling is not the full picture. It is the visible signal of damage that has already spread further than you can see without professional detection equipment.

Water released by a burst pipe inside a wall cavity travels down through framing, across subfloor material, and into the ceiling of the floor below before it becomes visible on any surface. Insulation absorbs moisture and holds it for days after the surface dries. Drywall saturates 12 to 18 inches above the visible waterline. According to OSHA, mold can begin developing within 24 to 48 hours of water exposure. After 72 hours, the CDC advises treating affected materials as though contamination has already begun.

This is why delayed response to frozen pipe damage in Minnesota homes consistently produces the most expensive restoration jobs. A basement that looks manageable on the surface is frequently the one that requires full mold restoration two weeks later. The thermal imaging cameras our team uses on arrival find water inside walls and under flooring that is completely invisible to the eye. What gets found on day one determines what gets prevented on day fourteen.

If the water has reached the basement, our basement flood cleanup service covers full extraction, structural drying, and antimicrobial treatment as part of one job.

Most standard homeowners’ policies do cover burst pipe damage, but coverage is conditional. Understanding those conditions before you file is the most important step any frozen pipes in Minnesota homeowner can take before calling their insurer.

The National Association of Insurance Commissioners confirms that homeowners’ policies cover damage from a “sudden and accidental” discharge from a plumbing system, but require the homeowner to have maintained the home at a minimum temperature or shut off the water supply if the property was vacant. If your insurer determines that the pipe froze due to negligence, the claim can be reduced or denied entirely.

What insurance typically requires to approve your claim at full value:

• The home was heated to at least 55 degrees Fahrenheit throughout the cold period
• Reasonable prevention measures were in place (insulated pipes, disconnected hoses, etc.)
• Damage was reported promptly after discovery
• Pre-remediation documentation is available before any cleanup begins

This is exactly where our insurance claim support process protects you. We document moisture readings, photographs, and a full written scope before anything is touched or moved. That documentation package is what your adjuster needs to process the claim correctly and at full value, not the reduced figure an undocumented claim typically receives.

Frozen pipe damage in Minnesota is a year-round risk, peaking between December and March. When a pipe bursts, every hour the water sits inside your walls increases the scope of work needed to extract, dry, and restore.

We handle water damage restoration, mold restoration, and repair and remodel work after frozen pipe events throughout Minneapolis, Plymouth, Eden Prairie, Minnetonka, Burnsville, Eagan, Woodbury, and the surrounding Twin Cities metro. One team handles every stage of the job, from extraction through final restoration, with full documentation for your insurance company throughout.

Our 60-minute response guarantee means a certified team is on-site within one hour of your call, any time of day. Call us at (763) 296-3319 or request emergency service online. Do not wait to see if the water dries on its own. It will not.