Free Houston Tool
Houston Freeze Prep & Pipe Insulation Checklist
Houston only freezes hard every few winters, which is exactly why our pipes burst when it does — homes here aren't built for it. This generator builds a printable, personalized freeze-prep checklist from your foundation type, water heater location, and whether you have irrigation or a pool, so you protect the exact points that fail first.
Your freeze checklist — 4 tasks
- 1
Disconnect & drain every outdoor hose bib
Remove hoses, drain the spigots, and cover each with an insulated faucet sock. Un-drained hose bibs are the #1 burst point in a Houston freeze.
- 2
Insulate exposed pipes in the attic & garage
Wrap any pipe in an unconditioned space (attic runs, garage walls) with foam sleeves. Houston homes rarely insulate these because they only matter a few nights a year — which is exactly why they burst.
- 3
Open cabinet doors & keep a pencil-width drip
On hard-freeze nights, open kitchen/bath cabinets so warm air reaches the pipes and let faucets on exterior walls drip to relieve pressure.
- 4
Protect the attic/garage water heater & its lines
An attic or garage tank sits in unconditioned space. Insulate the cold-inlet and hot-outlet lines and confirm the emergency drain pan is clear so a leak doesn't reach the ceiling.
This is a planning estimate only — actual requirements depend on an on-site assessment by a licensed Houston pro. If a pipe has already burst, shut off your main water supply and call a licensed Houston plumber immediately — freeze bursts flood fast.
Why Houston homes burst in a freeze
Uninsulated hose bibs, attic and garage water lines, exposed pier-and-beam plumbing, and irrigation backflow preventers are all built for a mild Gulf-Coast climate. When an Arctic front like Winter Storm Uri arrives, those unprotected points freeze, expand, and split — often flooding the home when the thaw comes.
How the checklist adapts to your home
Three core tasks apply to every home. The generator then adds targeted steps: pier-and-beam foundations get a crawlspace-vent task, your water heater location gets a specific protection step, and irrigation systems and pools each add their own freeze task. Print it and work down the list before the front arrives.
Frequently asked questions
At what temperature do pipes freeze in Houston?
Exposed, unprotected pipes can begin to freeze once temperatures hold below 32°F for several hours, and the risk climbs sharply below 20°F — the range Houston hit during Winter Storm Uri. Wind chill and unheated spaces (attics, garages, exterior walls) accelerate it.
Should I drip my faucets during a Houston freeze?
Yes. A slow, pencil-width drip on faucets served by pipes along exterior walls relieves the pressure that actually bursts a pipe when ice forms. Combine it with opening cabinet doors so household heat reaches the plumbing.
What should I do if a pipe already burst?
Shut off your home's main water supply immediately to stop the flooding, then open a faucet to relieve pressure and call a licensed Houston plumber. Freeze bursts can release hundreds of gallons quickly, so fast shutoff limits the water damage.
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