Winter Pipe Protection in Utah — How to Prevent Frozen Burst Pipes

Winter pipe protection in Utah — at a glance

• The freeze line in Utah County starts around 20°F for exposed pipes and 15°F for pipes inside uninsulated exterior walls. Hard freezes below 10°F burst even insulated runs that lose heat.
• Highest-risk spots: hose bibs, garage walls, crawlspaces, attic water lines, laundry rooms on exterior walls, cabin kitchens on second floors.
• Three things to do before Thanksgiving: disconnect hoses, insulate exposed pipes, know where your main shut-off is.
• If a pipe bursts: shut off the main, call (385) 250-2825. The first hour matters more than any other hour of the loss.

How pipes actually burst

Water doesn’t burst a pipe when it freezes at the freeze point. The expansion of ice itself fits inside most pipes. What breaks the pipe is pressure buildup between the frozen plug and the closed faucet — ice forms in one spot, water keeps flowing in, and pressure climbs behind the plug until the weakest section fails. That’s why running a trickle of water on the coldest nights works: it relieves pressure.

Before the first hard freeze (October-November)

1. Disconnect garden hoses. A connected hose traps water in the hose bib and the short run of pipe behind it. That trapped water freezes first and bursts the hose bib or the pipe inside the wall.
2. Shut off and drain irrigation. Blow out the sprinkler system if you have one. A failed backflow preventer in spring is a $800-$2,500 repair; a flooded basement from backflow burst is a $5,000-$15,000 restoration.
3. Insulate exposed pipes. Foam pipe sleeves at the hardware store cost $2-$4 per 6-foot section. Cover any pipe you can see in the garage, crawlspace, attic, or utility room. Pay extra attention to pipes within 2-3 inches of an exterior wall.
4. Seal exterior wall penetrations. Spray foam or caulk around any point where plumbing or electrical passes through to the outside — cold air blowing on a pipe freezes it faster than ambient cold.
5. Service your heat source. Furnace inspection, chimney sweep, verify thermostat accuracy. A failed furnace at 10°F outside takes a house below freezing in 4-6 hours.
6. Know where your main shut-off is. Usually in the basement, utility room, or garage, often near where the service line enters the house. If you can’t find it, call a plumber for a 15-minute walkthrough before winter — not during a burst.

During a cold snap (overnight lows under 20°F)

1. Open cabinet doors under kitchen and bathroom sinks on exterior walls. Warm indoor air reaches the pipes.
2. Set faucets to a slow drip on exterior-wall fixtures. One drip every 2-3 seconds relieves pressure buildup between an ice plug and the faucet.
3. Keep the thermostat at 55°F minimum even when you’re away. Dropping below that to save on heating costs $20-$50 of savings and risks a $5,000-$15,000 restoration.
4. Heat tape on known problem pipes — bathroom lines in crawlspaces, hose bibs that have frozen before. Follow manufacturer instructions carefully; a bad install is a fire risk.

If a pipe freezes but hasn’t burst yet

1. Open the nearest faucet on the frozen line to relieve pressure as the ice melts.
2. Apply gentle heat with a hair dryer, heating pad, or warm towels. Never use open flame — torches, propane heaters, kerosene heaters. House fires start every winter this way.
3. Work from the faucet back toward the frozen section. This lets melted water escape through the open faucet instead of refreezing further down.
4. Keep looking after thawing. A pipe that froze and didn’t burst may still crack internally — leaks sometimes show up days later.

If a pipe actually bursts

1. Shut off the main water supply immediately. Every minute of flow is more damage.
2. Shut off power to any wet area at the breaker if you can safely reach it. Water near outlets is a shock hazard.
3. Call Vault at (385) 250-2825. We log the time of the call and the arrival on your work order — important for your insurance claim later.
4. Move contents to a dry area. Lift area rugs. Pull wet cushions outside.
5. Photograph everything before you move anything you can’t lift. Insurance claims live or die on documentation.
6. Don’t start demo yourself. Cutting wet drywall out before Vault documents the loss can hurt your claim.

Insurance note for Utah winter bursts

Sudden-and-accidental burst from freeze is covered by standard Utah homeowner’s policies. Freeze damage from unoccupied homes without maintained heat (travel homes, cabins, seasonal rentals) is often excluded unless you have specific unoccupancy coverage. See how we handle insurance claims.

What Vault does on a winter burst call

• Arrive in 45 minutes inside Provo city limits (Mon-Sat 8-5); typically under 60 minutes to Orem, Springville, Vineyard, Lindon, Mapleton.
• Shut off and verify the water source if you haven’t.
• Extract standing water with truck-mounted extractors.
• Set up containment, air movers, and dehumidifiers at IICRC S500 standard.
• Document the loss with photos, moisture readings, and an Xactimate scope.
• Bill the insurer directly. You pay the deductible.

Pipe burst right now?

Call (385) 250-2825. Shut off the main first; we’ll walk you through the rest when you call.

Water damage timeline · Water damage services · Insurance claims · Emergency guide

Related: Window condensation and mold in winter

Also see: Frozen pipe — what to do before it bursts

More guides: Frozen hose bib leaks · Pipe types and leaks

Related guides

• Frozen Pipes in Barns, Workshops and Outbuildings
• Water Damage in Manufactured and Mobile Homes
• Water Damage in Short-Term Rentals

Inside Provo city limits we guarantee a crew within 45 minutes, Mon–Sat 8 AM–5 PM. See Provo emergency water damage.