Why Puget Sound pipes burst where there is no ice

A new free HelpMeNow.com video says the biggest winter pipe failures in Puget Sound often happen in warm walls, not in the frozen section itself. The warning lands as frozen-pipe claims surge nationwide and Washington remains among the costliest states for winter water damage.

Why it matters: - Frozen-pipe losses are getting expensive fast, with State Farm receiving more than 20,000 frozen-pipe and winter water-damage claims from January 2024 through June 2025 and paying more than $628 million. - The average claim payment topped $30,000, while the pipe repair itself is often only a few hundred dollars. - Washington ranked among the five states with the highest total claim costs. - In Puget Sound, a single cold snap can turn a small freeze into major water damage because many homes have vulnerable pipes in crawlspaces, garages, attics and exterior walls.

What happened: - HelpMeNow.com released a free video explainer as the region heads into winter freeze season. - The video focuses on why pipes often burst in a section with little or no ice, including inside a heated wall. - A frost advisory already covered areas north of Seattle on Halloween morning, according to the National Weather Service. - HelpMeNow.com also posted the video online and offered local help by phone and through its Bellevue-area service page. - The company said it connects homeowners in King, Snohomish, Pierce and Kitsap counties with local water-damage restoration professionals 24 hours a day, 365 days a year.

The details: - Research from the University of Illinois Building Research Council found that ice does not crack a pipe by pushing on its walls. - Once ice blocks a line, continued freezing pushes water toward a closed faucet. - Pressure in that trapped section can rise from a normal 40 to 80 pounds per square inch to about 4,000, and the pipe breaks at its weakest point. - Uninsulated pipes in unheated spaces can start freezing when outdoor temperatures fall to about 20 degrees, according to the same research. - A garden hose left attached to an outdoor faucet can trap water that freezes back into the wall. - HelpMeNow.com listed five low-cost prevention steps: disconnect hoses and cover outdoor faucets, wrap exposed pipes with foam sleeves, close or cover crawlspace vents during hard freezes, open cabinet doors under sinks on outside walls, and let a faucet drip on the coldest nights. - The video checklist for a burst pipe starts with shutting off the main water. - The checklist also includes cutting power to wet areas near outlets or the electrical panel if that is safe, moving valuables, photographing damage for the insurer, and starting professional water extraction. - The Insurance Institute for Business & Home Safety says a crack as small as one-eighth of an inch can release up to 250 gallons of water a day. - The EPA advises drying wet materials within 24 to 48 hours to reduce mold growth.

Between the lines: - The core risk is not just freezing. It is the pressure that builds after ice plugs a line and forces water into the weakest part of the pipe. - Mild winters can make the problem worse because homes are more likely to have plumbing in unheated spaces that were never built for sustained cold. - The biggest cost driver is often not the burst pipe itself but the hours of unseen water flow before someone finds the shut-off valve. - The timing matters because homeowners usually have only a short window before a small leak becomes a whole-house cleanup.

What's next: - Homeowners should find the main shut-off valve before the next hard freeze. - The region should expect more winter bursts during sudden cold snaps, especially in homes with exposed plumbing. - HelpMeNow.com says its restoration pros work with insurance companies and document what adjusters need. - The company says its local response is often at the door in 30 minutes or less, though arrival times vary with traffic, weather and ferry schedules.

The bottom line: - In Puget Sound, the danger is not where the ice forms. It is where trapped water pressure finally finds a weak spot and blows a pipe open.