Last updated: October 2026
To keep a well from freezing in North Texas, protect everything that sits above ground: insulate exposed pipes, the pressure tank connections and the pressure switch; seal gaps in the well house so cold wind can't blow through; and add a safe, thermostatically controlled heat source for hard freezes. The pump itself sits deep in the well where it stays warm — it's the wellhead, the piping and the well house that freeze. Winter Storm Uri in February 2021 showed how fast unprotected systems can crack when temperatures stay below freezing for days.
What Part of a Well Actually Freezes?
Not the pump. A submersible pump sits far below the frost line. What freezes is the exposed stuff: pipe between the wellhead and the house, fittings and valves in the well house, the pressure switch and its small sensing tube, and filtration equipment. A frozen pressure switch tube alone can keep the pump from turning on.
How Do You Winterize a Well House?
- Seal gaps around doors, walls and pipe penetrations.
- Insulate exposed pipe with foam sleeves, and wrap fittings and valves.
- Use heat tape rated for the job on vulnerable runs, installed per the manufacturer's directions.
- Add a thermostat-controlled heater made for small enclosures, kept clear of anything flammable.
- Keep a thermometer inside so you can check conditions during a cold snap.
Avoid open-element heaters and heat lamps sitting near insulation or wood — they're a real fire risk in a small well house.
What If Your Pressure Tank Is Outside?
Above-ground tanks and their connections need insulation or an enclosure. If your tank is fully exposed, it may be worth moving it into a heated or insulated space. See our pressure tank page.
What Should You Do If Your Well Freezes?
Turn off power to the pump at the breaker so it doesn't run against a blockage. Warm the frozen section slowly and never use an open flame. Once it thaws, check for cracks and leaks before restoring power. If you're unsure, call us — we offer same-day emergency well service.
Frequently Asked Questions
Does a submersible well pump freeze?
No — it sits deep in the well. The exposed piping, fittings and switch above ground are what freeze.
Should I drip faucets during a freeze?
A slow drip keeps water moving through the system and can help. Make sure your pressure tank and switch are protected too.
When should I winterize my well?
Before the first hard freeze. Pair it with a fall check — see our fall well maintenance checklist.
Want your well freeze-ready? Call 817-374-2548 or get your free quote — no obligation. Serving Fort Worth, Weatherford, Azle and all of North Texas.