Why Texas Freezes Burst Pipes — and How to Prevent It

Prevention

North Texas winters are usually mild, which is exactly why freeze damage catches so many Arlington homeowners off guard. Pipes that spent years never seeing a hard freeze can fail the first night temperatures plunge and stay low. Winter Storm Uri in February 2021 made that lesson painful across the Metroplex: widespread freezes, power interruptions, and a surge of burst-pipe claims. Understanding why pipes burst — and what to do before the next cold snap — protects your home and your wallet.

Why Pipes Burst in a Texas Freeze

Water expands as it turns to ice. Inside a pipe, that expansion can create enormous pressure. Often the pipe cracks during the freeze, but the dramatic flood shows up later when temperatures rise and ice plugs melt. Attic plumbing, pipes in exterior walls, hose bibs, and lines running through unheated garages are especially vulnerable in Arlington slab-on-grade homes. Many local houses were built for heat more than cold, with insulation and vapor strategies aimed at summer — not multi-day freezes with wind and overnight lows in the teens.

What Made Uri Different

Uri combined prolonged cold with power outages. Without heat, indoor temperatures in some homes dropped enough for interior plumbing to freeze — not just the usual outdoor spigots. When power and thaw returned, many families discovered water pouring through ceilings from attic lines or spraying behind walls. That pattern still shapes how Tarrant County residents prepare: freeze readiness is not optional "northern" advice anymore; it is practical Texas homeownership.

Before a Freeze: Prevention That Works

Know your shutoffs

Locate the main water shutoff and any hose-bib shutoffs before you need them. Practice closing the main so you are not learning under stress at 2 a.m.

Disconnect and drain outdoor hoses

Remove hoses from outdoor faucets, drain them, and shut off interior valves to hose bibs if you have them. Cover outdoor faucets with insulated caps rated for freeze protection.

Protect vulnerable runs

Insulate exposed pipes in attics, crawlspaces (where present), and garages with foam pipe insulation. Open cabinet doors under sinks on exterior walls during extreme cold so warmer room air can reach the plumbing. For vacation homes or vacant rentals, ask a plumber about controlled drain-downs.

Keep heat on — even when traveling

Set the thermostat to at least the mid-50s°F if you leave during a freeze warning. Ask a neighbor to check the house. A cold, empty house is a burst-pipe risk.

Drip faucets strategically

During hard freeze warnings, a slow drip on faucets served by vulnerable lines keeps water moving and can reduce freeze risk. Focus on fixtures on exterior walls. This is a temporary measure during extreme cold — not a year-round habit.

Seal drafts

Cold air infiltration around attic hatches, recessed lights, and gaps near hose bibs can chill pipes. Weatherstripping and careful sealing (without blocking required combustion-air paths) help keep temperatures more stable around plumbing.

If You Suspect a Frozen Pipe

If a faucet that normally runs is reduced to a trickle during a freeze, a line may be freezing. Open the faucet, warm the area gently with room heat (never an open flame), and watch for leaks as ice melts. If you find a burst, shut the main water supply immediately, turn off electricity to wet areas if it is safe, and call for emergency water extraction. Towels will not keep up with a split supply line.

After a Burst: What Restoration Looks Like

Burst-pipe losses often soak ceilings, insulation, drywall, flooring, and sometimes the attic. Professional restoration typically includes extraction, moisture mapping, removal of saturated materials that cannot be dried in place, structural drying with air movers and dehumidifiers, cleaning, and documentation for insurance. Sudden accidental discharge from a freeze-related break is commonly reviewed under homeowners coverage, but every policy differs — your adjuster and your declarations page control the outcome. Arlington Water Restoration can connect you with vetted local pros for 24/7 response and free estimates so drying starts before mold becomes the next problem.

Commercial and Multifamily Notes

Apartment buildings, HOA clubhouses, and Arlington businesses with fire-sprinkler or domestic water lines in unconditioned spaces face the same freeze physics at larger scale. Facilities managers should verify heat in mechanical rooms, insulate exposed lines, and have an after-hours shutoff plan. A single frozen riser can affect multiple units and trigger expensive business interruption.

A Simple Freeze-Night Checklist

• Check the forecast for hard freezes and wind chills
• Disconnect hoses; cover outdoor faucets
• Open cabinets on exterior walls; drip select faucets
• Keep heat on; seal obvious drafts near plumbing
• Know where the main shutoff is
• Have a 24/7 restoration number saved: (000) 000-0000

Freezes may be infrequent in Arlington, but when they arrive, preparation is cheaper than rebuilding a ceiling. If pipes have already failed, call now for fast local water damage help.