How to Wrap Pipes Before a Freeze in Texas
Saturday DIY Home Care Class #1
Presented by PHRS Remodeling
Beginner Friendly | 30-60 Minutes
Knowing how to wrap pipes before a freeze is one of the simplest and most affordable ways to help protect your home during winter. San Antonio homeowners remember the February 2021 winter storm and the damage freezing temperatures caused throughout our area.
While hard freezes aren’t an everyday occurrence in South Texas, it only takes one extended period of freezing temperatures to cause serious plumbing problems.
Welcome to DIY Home Care Class #1 from PHRS Remodeling! In this step-by-step guide, we’ll show you how to protect exposed water pipes, cover outdoor faucets, and prepare your home before freezing temperatures arrive. A little preparation now could help prevent expensive repairs later.
What You'll Need
Foam pipe insulation sleeves (match the pipe diameter)
Insulated faucet covers for every outdoor hose bib
Duct tape or zip ties
Pipe wrap tape for elbows and odd shapes
Optional: UL-listed heat cable (follow the manufacturer's instructions exactly)
How to Wrap Pipes Before a Freeze: Step-By-Step Guide
Step 1 – Find your exposed pipes. Check outdoor hose bibs, the pipe from the meter, pipes in the garage, attic, crawl space, exterior walls, and under sinks on outside walls. Don't forget the irrigation backflow preventer.
Step 2 – Know where your main water shut-off is. Find it, test it, and make sure everyone in
the house knows how to turn it off. This is the most important step.
Step 3 – Disconnect hoses. A hose left attached traps water that can freeze back into the pipe.
Step 4 – Install faucet covers on every outdoor spigot.
Step 5 – Measure your exposed pipes and select foam insulation sleeves that fit the pipe diameter. Cut the insulation to the appropriate length, position it around the pipe, and secure the seams according to the manufacturer’s instructions. Use compatible pipe insulation tape or fittings around elbows and bends to minimize exposed areas.
Make sure insulation fits securely without crushing the pipe or interfering with valves. Remember, insulation slows heat loss but does not guarantee that pipes will not freeze during prolonged extreme temperatures.
Step 6 – Protect outdoor irrigation equipment.
If your home has a sprinkler system, locate the irrigation shutoff valve and any exposed backflow prevention equipment. Turn off the irrigation system before freezing weather and protect exposed piping with appropriate insulation.
Backflow preventers may require additional draining or winterization based on their design. Follow the manufacturer’s instructions or contact a qualified irrigation professional. Never block relief openings or assume that covering the device alone will prevent freeze damage.
Common Mistakes to Avoid When Protecting Pipes
Even a simple home maintenance project can be less effective if a few important details are overlooked.
Waiting until the last minute: Purchase insulation materials and protect exposed pipes before temperatures drop.
Forgetting outdoor faucets: Disconnect garden hoses and install insulated faucet covers.
Leaving gaps in insulation: Check elbows, bends, and pipe connections for exposed areas.
Overlooking irrigation equipment: Sprinkler systems and above-ground backflow devices may also need winter protection.
Assuming insulation is freeze-proof: Pipe insulation helps slow heat loss, but extended freezing temperatures can still cause damage.
Taking time to check these areas can make a big difference when cold weather arrives.
On Freeze Nights
Open cabinet doors under sinks on exterior walls.
During prolonged freezing temperatures, follow your local water utility's guidance on if and when to drip indoor faucets. If dripping is recommended, use a slow drip from the faucets serving vulnerable plumbing.
Keep the thermostat steady — don't drop it overnight.
Keep the garage door closed.
For additional winter weather preparation tips and the latest local water service updates, visit the San Antonio Water System (SAWS) website. Staying informed about local recommendations can help you prepare your home when freezing temperatures are expected.
Before-the-Freeze Checklist
[ ] Locate and insulate exposed water pipes
[ ] Disconnect garden hoses
[ ] Install outdoor faucet covers
[ ] Locate your main water shutoff
[ ] Winterize irrigation equipment as appropriate
[ ] Check vulnerable areas around the home
[ ] Monitor the local weather forecast
What to Do If a Pipe Freezes or Bursts
If you discover a frozen or burst pipe, acting quickly can help reduce water damage.
Shut off the main water supply if you discover a burst pipe or active leak.
Avoid electrical hazards. If water is near outlets, appliances, or electrical panels, stay clear and contact a qualified professional. Do not enter standing water to reach electrical equipment.
Contact a licensed plumber to inspect and repair damaged plumbing.
Document the damage with photographs for your insurance company when it is safe to do so.
Check for hidden leaks as temperatures rise and frozen pipes begin to thaw.
Never attempt to thaw a frozen pipe using an open flame or torch. If you cannot safely locate or address the problem, contact a professional.
A Little Preparation Goes a Long Way
Protecting your home doesn’t always require a major investment. Sometimes, a few simple maintenance steps can help prevent bigger problems down the road.
At PHRS Remodeling, we believe homeowners should feel confident caring for their homes. That’s why we’re sharing our Saturday DIY Home Care Classes with practical tips, maintenance advice, and projects you can tackle yourself.
Have questions about protecting your home or need professional assistance with a project beyond your comfort level? We’re always happy to help! Visit our Contact Us page to get in touch with PHRS Remodeling.
PHRS Remodeling
Family-Owned & Operated | Serving San Antonio & Surrounding Areas
Coming Next Saturday: DIY Home Care Class #2 — Weatherstripping and Caulking to Help Reduce Drafts and Energy Loss.