Every Anoka homeowner knows how brutal a Minnesota winter can be. When temperatures drop to -15°F or lower — which happens several times each season — the risk of frozen pipes becomes very real. A frozen pipe is not just an inconvenience; a burst pipe can release hundreds of gallons of water into your home in minutes, causing thousands of dollars in structural damage.
The good news: frozen pipes are almost entirely preventable with the right preparation. This guide walks you through exactly what to do before the cold hits, what to watch for during a freeze, and what to do if a pipe does freeze.
Why Pipes Freeze in Anoka, MN Homes
Water expands when it freezes. When a pipe is exposed to sustained cold air — from an uninsulated crawl space, an exterior wall cavity, or a garage — the water inside can freeze and expand with enough force to crack or split the pipe wall. The most vulnerable pipes in Anoka homes are pipes along exterior walls, pipes in unheated crawl spaces or basements, outdoor hose bibs and spigots, pipes in garages, and pipes under kitchen or bathroom sinks on exterior walls.
7 Steps to Prevent Frozen Pipes This Winter
1. Insulate Your Most Vulnerable Pipes
Foam pipe insulation sleeves are inexpensive and available at any hardware store. Wrap any pipe that runs through an unheated space — crawl spaces, attic runs, garage walls, and along exterior wall cavities. For extra protection in very cold areas, use heat tape or self-regulating heat cable underneath the foam wrap.
2. Disconnect and Drain Outdoor Hose Bibs Before the First Freeze
This is one of the most commonly forgotten steps. Even frost-free hose bibs can freeze if a hose is left attached — the hose traps water in the faucet body, preventing it from draining. Disconnect all garden hoses before freeze season and close the indoor shutoff valve that feeds each outdoor spigot, then open the outdoor bib to let remaining water drain.
3. Keep Your Thermostat at Minimum 55°F
During cold snaps, many homeowners turn the heat way down when leaving for work or vacation. The money saved on heating bills is rarely worth the cost of a burst pipe. Keep your thermostat set to at least 55°F at all times during winter months, even if the house is empty.
4. Open Cabinet Doors Under Kitchen and Bathroom Sinks
Cabinets on exterior walls act as insulating barriers that keep warm house air away from the pipes inside. On especially cold nights (below 10°F), open the doors under your kitchen and bathroom sinks to let warm air circulate around the pipes.
5. Let a Trickle of Water Run on Extreme Cold Nights
Moving water is much harder to freeze than standing water. During extreme cold stretches below -10°F, let a slow trickle run from the faucet farthest from your main water entry point. Focus on faucets served by pipes along exterior walls.
6. Seal Air Leaks Near Pipes
Cold outdoor air can enter your home through gaps around electrical outlets, pipe penetrations, and foundation cracks. Use expanding foam or caulk to seal any openings where pipes run through exterior walls or the foundation. Even a small gap allows enough cold air to freeze a pipe on a brutal Minnesota night.
7. Know Where Your Main Shutoff Valve Is
If a pipe does freeze — or worse, burst — being able to shut off the water supply immediately is critical. Make sure every adult in your household knows where the main shutoff valve is located (typically near the water meter in the basement or utility room).
Signs a Pipe Has Already Frozen
Watch for these warning signs: no water flow from a faucet on a cold morning, frost visible on exposed pipe sections, and visible bulging or cracking on an exposed pipe. If you suspect a pipe has frozen but has not burst yet, apply gentle heat with a hair dryer or warm towels — starting from the faucet end and working toward the coldest section. Keep the faucet open so steam has a place to escape. Never use an open flame.
What Happens If a Pipe Bursts
If you find water flooding from inside a wall or ceiling, shut off the main water supply immediately, turn off electricity to affected areas if water is near electrical panels, open all faucets to drain residual water, and call a licensed plumber. A burst pipe requires professional pipe repair to properly seal and test the affected section. Do not attempt to repair a burst pipe with tape as a long-term fix.
The Bottom Line
Frozen pipe prevention costs very little — a few dollars of foam insulation and an hour of prep work in early November can save you a $3,000–$15,000 burst pipe repair and remediation bill. Follow these seven steps every fall and your plumbing will come through even the worst Minnesota winter without incident. If you would like a plumber to inspect your home’s vulnerable pipes before winter arrives, call us at (321) 461-8806 for a same-day assessment.