Texas Freeze Prep: How to Protect Your Plumbing Before the Next Winter Storm

February 2021 taught East Texas a lesson most of us won't forget. Uri hit Liberty and Chambers counties with temperatures in the single digits for days, and our plumbing paid the price. I personally saw at least forty homes in the Dayton and Mont Belvieu areas with burst pipes—some of them brand new construction that should've known better. The damage wasn't theoretical. Families went weeks without running water, dealt with $8,000 to $15,000 in repair bills, and fought with insurance companies who suddenly discovered exclusions they'd never mentioned before.

Here's what makes East Texas particularly vulnerable: our homes weren't built for this. A house in Amarillo has different plumbing standards than what you'll find in Baytown or Highlands. We've got pipes running through unheated crawl spaces under pier-and-beam homes, exterior walls with minimal insulation, and outdoor faucets that were installed assuming we'd never see prolonged freezing. That assumption broke in 2021, and there's no reason to think it won't happen again.

The good news is that winterizing your plumbing isn't complicated or expensive if you do it before the freeze warning shows up on your phone. Most of what I'm about to walk you through costs under $100 in materials and takes a Saturday afternoon. The alternative—calling a plumber during an ice storm when everyone else's pipes are bursting—will cost you $350 just to show up, assuming you can even get one.

Where Are Your Pipes Actually Exposed?

Your first job is identifying every point where water lines are vulnerable to freezing, and in East Texas homes, there are more than you think.

Pier-and-beam houses—common in older parts of Liberty and Dayton—have the most exposure. The entire underside of your house is basically outside, and those copper or PEX lines running through the crawl space will freeze solid when temperatures drop into the teens for more than a few hours. I've crawled under enough of these homes to tell you that insulation under there is either nonexistent or has been shredded by animals. Your water heater is probably down there too, along with any expansion tanks or pressure regulators.

Slab homes aren't much better in different ways. Your main supply lines are protected under concrete, but anywhere pipes run through exterior walls—bathrooms on the north side of the house, wet bars, washing machine connections in garages—you've got risk. I see this constantly in the cookie-cutter subdivisions going up around Crosby and Mont Belvieu. Builders meet minimum code and nothing more. That exterior wall has a 2x4 stud, R-13 fiberglass insulation if you're lucky, and then your plumbing. When it's 15 degrees outside with 20 mph wind, that wall cavity gets cold fast.

Manufactured homes have their own problems. The underbelly wrap deteriorates, the skirting develops gaps, and suddenly you've got Minnesota-level wind exposure on Texas-level plumbing. I watched a double-wide in Anahuac lose four different supply lines during Uri, all within an hour of each other.

Walk your property with a notepad. Mark down every outdoor faucet (front, back, sides—don't forget that one by the air conditioner that you use twice a year). Check your garage for any plumbing—water heater, utility sink, washing machine hookups. If you've got a pier-and-beam, you need to get under there with a flashlight, even if it's unpleasant. Take photos of where your pipes run. This fifteen-minute survey will tell you exactly what needs protecting.

How to Insulate Exposed Pipes the Right Way

Pipe insulation is cheap and effective, but only if you use enough of it and apply it correctly.

The foam tubes you'll find at Lowe's or Home Depot come in different wall thicknesses. The thin stuff—3/8 inch thick—is what most people buy because it's $2 per six-foot length. Don't. Get the 3/4-inch or 1-inch wall thickness. Yes, it costs $5 to $7 per length, but the R-value difference matters when you're trying to survive three days below freezing. For a typical East Texas home with a pier-and-beam foundation, you're looking at $80 to $120 in foam insulation to cover all your exposed lines. That's still cheaper than one plumber visit.

When you install foam pipe insulation, the seam matters. That slit running down the length of the tube should face down or to the side—never up. Water can get in through an upward-facing seam, which defeats the entire purpose. Use the self-adhesive strip if it has one, and add aluminum tape or zip ties every two feet. I've seen too many installations where someone just press-fit the foam and called it done. The first strong wind pulls it apart.

Pay special attention to corners, tees, and elbows. Those fittings are where pipes burst first because there's more surface area exposed. You can't just mash the foam together at a corner and hope. Cut 45-degree angles so the foam pieces mate cleanly, then wrap the joint with aluminum tape. If you're not comfortable with the cuts, they sell foam fitting covers, but honestly, a little time with a razor blade and a straight edge works better.

For pier-and-beam homes, you're also insulating in a humid environment. Standard fiberglass batts will soak up moisture and become useless. If you're adding batt insulation between floor joists (which you should be anyway for energy efficiency), use faced insulation with the vapor barrier facing up toward the heated floor. Better yet, use closed-cell foam board. It costs more—$35 per 4x8 sheet of 1-inch polyiso versus $15 for fiberglass—but it won't grow mold and it actually works when it's damp.

The outdoor faucets need frost-free covers at minimum. These are the foam pouches that fit over the spigot, and they cost about $4 each at any hardware store. But here's what actually works better: turn off the interior shutoff valve that feeds each outdoor faucet, open the outside faucet to drain the line, then leave it open with a foam cover over it. That way there's no water in the line to freeze. Most people skip the shutoff step and just throw the cover on. Then they're surprised when the pipe splits inside the wall where the faucet attaches.

What's the Right Faucet Drip Protocol?

Letting faucets drip during a freeze is legitimate science, not old wives' tale, but the details matter more than most people realize.

Moving water resists freezing better than standing water—that's basic physics. But you don't need a stream; you need a drip. Specifically, you want about five drips per minute from each at-risk faucet. That's slow enough to not waste significant water (maybe 3-4 gallons over a 24-hour period per faucet) but fast enough to keep fresh water moving through the pipe. I've timed it: five drips per minute is what you get when you turn a standard faucet handle about one-sixteenth of a turn from fully closed.

Which faucets should drip? Any faucet on an exterior wall, any faucet in an unheated space, and—this is the one people miss—at least one faucet at the far end of your house from where water enters. Water enters your home cold. It needs to keep moving all the way to the endpoints or you get ice dams in distant sections of the house. In a typical East Texas ranch-style home, if water enters near the front, you want something dripping in the back bathrooms.

Hot or cold? Both, but the technique is different. Let cold water drip because that's what's in your supply lines and what will freeze first. But also crack the hot water side slightly because it pulls fresh water through your water heater. During Uri, I saw multiple water heaters in Highlands and Crosby crack from ice formation in the tank itself when people protected their pipes but forgot the heater was sitting in an unheated garage.

Open cabinet doors under any sink on exterior walls. Your kitchen sink is almost certainly on an outside wall—that's where the window is. The cabinet traps cold air around the pipes. Opening those doors lets your heated house air circulate. It looks stupid and your spouse will complain about aesthetics, but it works. I do this in my own house anytime we're forecast below 25 degrees for more than a few hours.

One number to remember: 20 degrees Fahrenheit for four consecutive hours is when unprotected pipes start having problems. Below that, or longer than that, you need drips running. The National Weather Service forecast for Liberty County will tell you overnight lows, but pay attention to the hourly forecast. If you're going to hit 22 degrees at midnight and stay there until 8 AM, that's eight hours—start your drips before you go to bed.

Where Are Your Shutoff Valves and How to Use Them?

The worst time to locate your water shutoff valves is when a pipe has already burst and water is spraying into your ceiling cavity.

Every East Texas home should have a main shutoff where the water line enters from the street, usually near the water heater or in a utility room. If you've got city water in Dayton or Liberty, there's also a curb stop at the street, but you need a special key to operate it and it's not your emergency shutoff—that's the utility company's valve. Your valve is inside or just outside your home's foundation.

The main shutoff is typically a gate valve (a round handle that turns multiple rotations) or a ball valve (a lever that turns 90 degrees). Ball valves are better—they don't corrode stuck as easily—but plenty of older homes still have gate valves. Walk over to yours right now and turn it off, then turn it back on. If it won't budge, you need to address that this week, not during an ice storm. A seized shutoff valve means you can't stop water from a burst pipe, which turns a $500 drywall repair into a $8,000 flood remediation job.

Beyond the main shutoff, you should have individual shutoffs for every toilet (behind the toilet near the floor), every sink (inside the vanity cabinet), your washing machine (on the wall behind or beside it), your water heater, and each outdoor faucet. Modern homes built in the last ten years usually have these. Homes from the 1980s and 1990s—which describes half the housing stock in Chambers and Liberty counties—often don't have individual fixture shutoffs. You can add them yourself with basic plumbing skills, or hire a plumber to install them. Budget $45 to $75 per valve installed, and prioritize outdoor faucets first.

Label your valves. I use a label maker and clear tape. It sounds compulsive, but when your brother-in-law is house-sitting during a freeze and calls you panicking about water spraying from the guest bathroom, you can talk him through exactly which valve to turn instead of having him shut off the whole house or, worse, do nothing while the water runs.

Test your shutoff valves twice a year—I do it when we change smoke detector batteries in spring and fall. Turn them off, check that water actually stops, then turn them back on. Gate valves especially will corrode in the closed position if you don't exercise them occasionally.

How to Protect Outdoor Plumbing and Sprinkler Systems

Your outdoor infrastructure is more vulnerable than anything inside your walls, and it's what failed first during Uri across Liberty and Chambers counties.

Outdoor faucets need to be drained before a freeze, period. Like I mentioned earlier, the right process is: locate the interior shutoff valve (usually in a crawlspace, garage, or utility room), close it, go outside and open the faucet completely, let it drain, and leave it open with a foam cover installed. The open position allows any residual water to expand without cracking the pipe. If you just close the faucet and throw a cover on it, you've protected nothing.

If your outdoor faucets don't have interior shutoff valves, you've got two options. The permanent fix is installing frost-free sillcocks—these are outdoor faucets designed with the valve seat 6 to 12 inches inside the warm wall, so the part that holds water can't freeze. They run $25 to $40 at hardware stores and take about thirty minutes to install if you're comfortable sweating copper or using SharkBite fittings. The temporary fix is the drain-and-insulate method I described, but you're at higher risk.

Sprinkler systems in East Texas are everywhere—everyone wants a green lawn despite our clay soil and humidity. A standard four-zone residential system has a backflow preventer, a valve manifold, supply lines, and heads. All of it is vulnerable. The backflow preventer sits above ground in most installations, often in a green plastic box near your water meter. That brass assembly will crack like an egg in a hard freeze if it's holding water.

Here's the procedure: turn off the water supply to your sprinkler system at the dedicated shutoff (usually a separate valve near your main water shutoff or at the backflow device itself). Then blow out the lines with compressed air. You can rent a gas-powered air compressor from Home Depot for about $65 per day—you need one that delivers at least 10 CFM at 50 PSI. Connect it to the system through the blowout port or by removing a head at the highest zone, then run each zone for two minutes until only air comes out.

If you're not comfortable with the blowout process, sprinkler companies in Baytown and Mont Belvieu charge $75 to $125 for winterization. That's reasonable for the peace of mind, and it's a lot less than $600 for a new backflow preventer plus $200 for a plumber to install it.

Swimming pools and hot tubs are another concern. You don't need to drain them completely—that can actually damage the structure—but you need to protect the equipment. Pool pumps, filters, and heaters should be drained of water. Most have drain plugs at the low points. Remove them and leave them out. The pipes between your pool and equipment pad are the risk points. If you've got a pool company that does maintenance, they'll winterize for $150 to $200. If you're doing it yourself, the key is getting all the water out of the filter housing and the pump basket.

What to Do When Pipes Freeze Despite Your Prep

Even with good preparation, sometimes pipes freeze. How you respond determines whether you get minor inconvenience or major damage.

If you turn on a faucet and nothing comes out, you've got a frozen pipe somewhere between the main supply and that fixture. Don't panic and don't do what half of East Texas did during Uri: call a plumber immediately and wait by the phone. Most frozen pipes will thaw without bursting if you handle it correctly.

First, open the faucet—both hot and cold sides. Leave it open. When the ice blockage melts, the water needs somewhere to go. A closed faucet means pressure builds behind the ice plug, and that's when pipes split.

Second, locate the frozen section. Start at the faucet and work backward toward your water supply, feeling pipes for temperature. You're looking for a section that's noticeably colder than the rest. In pier-and-beam homes, it's almost always in the crawlspace. In slab homes, it's usually in an exterior wall cavity.

Third, apply gentle heat. The right tools are a hair dryer, heat lamp, or space heater aimed at the pipe section. The wrong tools are propane torches, kerosene heaters, or any open flame. I personally saw two house fires during Uri from people using torches on frozen pipes. Copper pipe can handle heat, but the wood framing around it can't, and neither can the insulation or the PEX tubing that's increasingly common in new construction.

Work from the faucet toward the frozen area, not the other way around. This allows melting ice to escape through the open faucet rather than building pressure. It might take 30 to 45 minutes of steady heat application. Be patient.

If you discover a burst pipe—and you'll know because water will be spraying or pouring somewhere—shut off the main water supply immediately. Then shut off your water heater (electric models need the breaker flipped, gas models need the gas valve turned to "off"). Water heater tanks will overheat and fail if they keep trying to heat water that's draining out of your house. Open all faucets to drain the remaining water from your lines.

Document everything with photos and video. Your insurance claim will go smoother with documentation. Take photos of the damaged pipe, the water damage, your insulation efforts (to show you tried), and any property damage. Most homeowner policies in Texas cover sudden pipe bursts but not gradual damage from neglect.

For the actual pipe repair, you've got options depending on the material. Copper pipe bursts need to be cut out and replaced—either with new copper sweated in or with SharkBite fittings if you want the easier route. PEX splits can sometimes be fixed with push-fit couplings. Both approaches require cutting out the damaged section, which means you need access. If the pipe is in a wall, you're cutting drywall. If it's under the house, you're crawling. Budget $200 to $400 if you hire this out, depending on accessibility.

Your 72-Hour Action Plan Before the Next Freeze Warning

When the National Weather Service issues a freeze warning for Liberty, Chambers, or Harris counties, you've got about three days to act before temperatures drop. Here's the priority sequence.

Day one, gather materials. You need pipe insulation for any exposed lines you haven't already covered (figure $80 to $120), foam faucet covers for outdoor spigots ($4 each), aluminum tape, and a couple of space heaters if you've got a pier-and-beam foundation. Drive to the hardware store now, not the day before the freeze when shelves are picked clean.

Day two, execute your insulation plan. Cover exposed pipes in crawlspaces, attics, and garages. Install foam covers on outdoor faucets after you've drained them. Open cabinet doors under sinks on exterior walls. Move any sensitive belongings away from exterior walls in case pipes burst despite your efforts.

Day three (the day before temps drop), set your drips. Every faucet on an exterior wall should drip at the five-drip-per-minute rate I mentioned. Fill your bathtub with water for flushing toilets if your pipes do freeze. Set your thermostat to 65 degrees minimum and leave it there—don't use nighttime setbacks during freezes. If you've got a pier-and-beam home, put a space heater in the crawlspace set to 40 degrees. That's not code in some jurisdictions because of fire risk, but it's what I do in my own home, with the heater on a concrete block away from any wood.

If you're leaving town during winter, don't turn your heat below 60 degrees. The $30 you save on a heating bill isn't worth the $10,000 pipe burst repair. I know people who shut their houses down to 45 degrees over Christmas and came home to disaster.

For manufactured homes, check your skirting integrity before winter. Any gaps let freezing air directly onto your pipes. Seal them with foam board or plywood screwed into place. Heat tape—the electrical cable that wraps pipes and generates warmth—is an option for manufactured homes where insulation alone isn't enough. It costs about $20 per 12-foot section and draws minimal power, maybe $15 per month if you run it constantly during freezing weather.

The reality is this: East Texas will see another hard freeze. Maybe this year, maybe in five years, but it's coming. The infrastructure hasn't changed—we're still living in homes designed for 100-degree summers, not 15-degree winters. Your plumbing system will do exactly what it did in 2021 unless you make different choices now, in October or November when you've got time and hardware stores are stocked and plumbers aren't charging emergency rates.

None of this is complicated. Insulation, drips, valve knowledge, and a plan—those four things will protect 95% of East Texas homes from freeze damage. The other 5% are usually dealing with builder mistakes or extreme situations that require professional help anyway. You're probably in the 95%, which means you can handle this yourself for under $200 and one weekend of work. Do it now while you're thinking about it, not when your neighbor is calling you at 2 AM because their ceiling is raining in the living room.