Winter Plumbing Emergency Specialists
Understanding the Danger of Frozen Pipes
When temperatures fall below 32°F (0°C), any water remaining inside pipes that are exposed to freezing outdoor air or unheated spaces can begin to freeze. As liquid water turns into ice, it expands by approximately 9% in volume. Because plumbing pipes are rigid and enclosed, there is very little room to accommodate this expansion. As ice forms inside a pipe, it can create a blockage that prevents water from moving freely through the system. The continued expansion of freezing water increases internal pressure within the pipe. In some cases, this pressure can exceed 40,000 pounds per square inch (psi), which is significantly higher than the pressure that common plumbing materials such as copper, PVC, and even steel pipes are designed to withstand. A common misconception is that pipes always burst at the location where the ice forms. In reality, the rupture often occurs at a different point in the plumbing system. The pressure generated by the expanding ice can travel through the pipe, placing stress on joints, fittings, bends, and other vulnerable sections. Any existing weakness in the system may become the point of failure. The consequences of a burst pipe can be severe. While the pipe may split during the freezing process, major water damage often occurs later when temperatures rise, the ice melts, and water is once again able to flow through the damaged section. Once this happens, large volumes of water can escape into a home or commercial property within minutes, leading to flooding, structural damage, and costly repairs. Anchor Plumbing & Heating LLC provides professional assistance for frozen and burst pipes in Pelican Rapids, MN. Their team uses specialized pipe-thawing equipment to safely restore water flow, performs rapid pipe repairs when damage has occurred, and helps implement measures to reduce water damage and protect the plumbing system from further issues.
Which Pipes Are Most Vulnerable to Freezing
Knowing which pipes in your home are most at risk helps you take targeted preventive action before temperatures drop critically. These locations are where freeze events are most likely to occur.
Exterior Wall Pipes
Supply lines running inside exterior walls receive minimal insulation benefit from indoor heat and are directly adjacent to cold outdoor air, making them the most common freeze location.
Unheated Crawl Spaces
Pipes running through crawl spaces beneath homes are exposed to outdoor air temperatures on cold nights, especially when foundation vents remain open through winter.
Unheated Basements
Supply lines in basements that are not actively heated, or that lose heat rapidly through poor insulation, are vulnerable during prolonged cold periods.
Attic Plumbing
Pipes routed through attic spaces are exposed to extreme cold because heat rises through the living space but attics themselves are designed to remain close to outdoor temperatures.
Garage Plumbing
Any pipes running through attached or detached garages that are not heated can freeze quickly during cold snaps, especially laundry supply lines or hose bibs.
Vacation and Vacant Homes
Homes where thermostats are set too low or heating fails while the property is unoccupied are at extremely high risk for widespread freeze damage throughout the plumbing system.
What to Do and What to Avoid When You Suspect a Frozen Pipe
Your actions in the first minutes after discovering a frozen pipe can make the difference between a minor service call and a catastrophic flood. Follow these guidelines carefully.
✓ Do These Things
- Locate your main water shut-off valve and know how to operate it before a problem occurs.
- Turn off the main water supply immediately if you discover a burst pipe or hear sudden water rushing inside a wall.
- Open faucets connected to the affected pipe to relieve pressure as the ice thaws.
- Apply gentle warmth to accessible frozen pipes using a heating pad, hair dryer on low, or warm towels.
- Call Anchor Plumbing immediately for professional thawing and assessment of all affected pipes.
- Keep cabinet doors under sinks open on cold nights to allow heated room air to reach supply lines.
✗ Never Do These Things
- Never use an open flame, propane torch, or kerosene heater to thaw a frozen pipe. This is a severe fire hazard.
- Never use boiling water on frozen pipes as the sudden temperature change can crack the pipe.
- Never leave a frozen pipe unattended once you start applying heat. A thawing burst floods immediately.
- Never assume the frozen section is the only problem. Pressure damage can occur far from the ice plug.
- Never ignore a frozen pipe hoping it will thaw on its own without damage.
- Never use a high-powered electric heat gun without proper training, as overheating damages pipe materials.
Our Frozen Pipe Repair and Thawing Process
System Assessment and Water Shut-Off
Our technician first identifies all affected pipes, assesses whether any bursts have already occurred, and if necessary shuts off the water supply to prevent flooding once ice begins to thaw. We inspect the entire route of the frozen pipe to identify all at-risk sections.
Professional Pipe Thawing
We use professional electric pipe thawing equipment that applies controlled electrical resistance heating directly to metal pipes, safely and rapidly melting ice plugs. For PVC pipes and other materials not compatible with electrical thawing, we use controlled heat application methods appropriate to the pipe material.
Full System Inspection Post-Thaw
After thawing, we pressurize the system and inspect all pipe segments, joints, and fixtures that were in the freeze zone for signs of cracking, joint separation, or pinhole damage that may have occurred under the freeze pressure. We check inside walls, under floors, and in crawl spaces as required.
Burst Pipe Repair or Replacement
Any sections of pipe that have split, cracked, or suffered joint failure are repaired or replaced using appropriate materials. We restore full water service to the home and verify pressure throughout the system before completing the service call.
Freeze Prevention Recommendations
We identify the insulation, heating, and plumbing routing issues that led to the freeze and provide specific written recommendations for preventing a recurrence, including pipe insulation, heat tape installation, thermostat minimums, and in some cases pipe re-routing away from exterior walls.
Long-Term Freeze Protection Services
- Pipe Insulation Installation: We install foam pipe insulation sleeves on vulnerable supply lines in crawl spaces, attics, and unheated areas, dramatically reducing freeze risk during cold weather events.
- Electrical Heat Tape Application: Self-regulating electric heat tape installed along vulnerable pipe runs provides reliable freeze protection even during extended cold periods without the safety concerns of constant-wattage products.
- Frost-Free Hose Bib Replacement: Standard exterior hose bibs freeze easily. We replace them with frost-free models that drain water back away from the freeze zone when the faucet is turned off, eliminating one of the most common freeze damage points.
- Crawl Space Insulation and Sealing: Properly insulating and sealing crawl space foundation vents during winter prevents cold air from reaching pipes in this highly vulnerable location.
- Re-Routing Vulnerable Pipes: In homes where pipes run through exterior walls or other chronically exposed locations, we can re-route supply lines through interior wall cavities where they maintain adequate warmth year-round.