Frozen pipes cause over $5 billion in U.S. damage yearly. One burst pipe can flood your home with hundreds of gallons, costing $2,000-$5,000 in repairs.
Here in the Central Valley, we don’t see the extreme cold of northern states, but when temps drop below 28°F, especially overnight, unprotected pipes freeze fast. The good news? Simple prevention keeps your plumbing safe and your home dry.
Here’s everything you need to protect your pipes this winter.
Water expands 9% when frozen. A 1-inch pipe holds 1.5 gallons, and that expansion cracks pipes at weak points.
The Process:
Most Vulnerable: Copper and CPVC crack easily. PEX has flexibility but still fails under extreme pressure.
Exterior Walls
Crawlspaces and Basements
Outdoor Fixtures
Attics
Early Signs:
Emergency Signs:
| Risk Area | Freeze Time at 20°F | Damage Cost |
| Uninsulated exterior pipes | 4-6 hours | $2,000 burst repair |
| Crawlspace lines | 6-8 hours | $3,500+ slab reroute |
| Hose bibs | 2-4 hours | $500 replacement |
| Attic supply lines | 5-7 hours | $1,500-$3,000 |
Reality: Prevention costs $50-$200. Repairs cost $1,000-$5,000+.
How long at 32°F before pipes freeze? 6-8 hours with wind chill, less on exposed pipes. Act at 28°F.
At what temperature should you drip faucets? Below 28°F, especially overnight.
Moving water doesn’t freeze easily.
DIY Cost: $50 covers 100 feet
Even “frost-free” hose bibs fail if hoses stay connected.
Cost of 55°F: $50-$100/month. Burst pipe: $2,000+.
Cold drafts freeze pipes faster than low temps alone.
15 minutes weekly prevents days of disruption and thousands in costs.
| Material | Best For | Cost/10 ft | Pros | Cons |
| Foam tube sleeves | Straight runs, hot/cold lines | $5-10 | Easy install, cheap | Gaps at joints |
| Fiberglass wrap | Irregular pipes, tight spaces | $8-15 | Heat-resistant, flexible | Needs tape/ties |
| Electrical heat tape | Extreme cold, problem areas | $15-25 | Active heating | Needs power, fire risk |
| Spray foam | Large gaps, irregular spaces | $20+ | Complete seal | Permanent, messy |
Foam Pipe Sleeves
Heat Tape (Electric)
Fiberglass Wrap
Insulate First:
DIY ($50-$100):
Professional ($200-$500):
Worth calling a pro: Previous freeze issues, hard-to-reach pipes, and comprehensive protection needed.
WiFi Temperature Sensors ($30-$60)
Smart Thermostats ($150-$250)
Whole-Home Water Monitoring ($200-$500)
Worth it? If you travel in winter or own rental/vacation properties, it pays for itself in one prevented incident.
Newspaper or towels – Trap moisture, compress, fire hazard
Non-UL listed heat tape – Fire risk, unreliable
Cheap alternatives – Deteriorate quickly, leave gaps
Winterizing = preparing plumbing for extended periods without heat (vacant homes, seasonal properties).
Don’t winterize if: Someone lives there and heat stays on. Use standard prevention instead.
Step 1: Drain the System
Step 2: Blow Out Lines
Step 3: Add Antifreeze
Step 4: Protect Appliances
You Need:
How much does a plumber charge to winterize?
| Home Size | Cost | Includes |
| 1,000-1,500 sq ft | $150-$250 | Basic drain + antifreeze |
| 1,500-2,500 sq ft | $200-$350 | Full blow-out |
| 2,500-4,000 sq ft | $300-$500 | Multiple bathrooms, complex systems |
Additional:
Worth it? Professional winterization ($150-$400) is less than thawing frozen pipes ($200-$500) or burst repairs ($2,000-$5,000).
Cost: Usually the same as winterization ($150-$400).
Roof and Gutter Protection
Sump Pump Protection
Water Heater Maintenance
Septic System Care
Central Valley winters are usually mild, but when overnight freezes hit, unprotected pipes fail quickly. Most burst pipes we see each winter are completely preventable with the right steps taken in advance.
Tony’s Plumbing has been protecting Modesto homes since 1994, and we know exactly where and how pipes freeze in this area. If temperatures are forecast to drop below 28°F, it’s time to act.
Contact us for proactive freeze protection, vacant-property winterization, professional pipe insulation, or 24/7 emergency service for frozen and burst pipes.
What does “winterized plumbing” mean?
Full system drain plus antifreeze in all traps for unoccupied homes. Prevents freeze damage when heat is off for extended periods. Includes draining the water heater, blowing out lines with compressed air, and adding RV antifreeze.
How long at 32 degrees before pipes freeze?
6-8 hours at 32°F with wind chill, faster on exposed pipes. Shortens to 4-6 hours at 20°F. Exterior walls and uninsulated lines freeze first. Start prevention at 28°F.
How much does a plumber charge to winterize a house?
$150-$400 for a typical 1,500 sq ft home. Includes draining, blowing out lines, and adding antifreeze. Cheaper than $2,000+ thaw-out and burst repairs. Complex systems: $300-$500.
At what temperature should you let your faucets drip?
Below 28°F, especially overnight. Start with warm-side faucets (reduces hot water line freezes). Focus on exterior wall faucets. Steady drip (pencil-lead thickness) keeps water moving.
Should I drip all faucets or just one?
Drip faucets on exterior walls and unheated areas. In extreme cold (below 20°F), drip multiple faucets. One faucet protects that line only, not the whole house.
Can PEX pipes freeze and burst?
Yes. PEX has more flexibility than copper but still fails under extreme ice pressure. Insulate PEX like any other material. More forgiving but not freeze-proof.
How do you thaw frozen pipes safely?
Turn on the affected faucet. Apply heat with a hair dryer, heat lamp, or warm towels. Work from the faucet toward the frozen area. NEVER use torches, open flames, or high heat. Call a pro if you can’t locate the freeze or the pipe is inside the wall.
Will shutting off water prevent pipes from freezing?
No. Shutting off doesn’t drain pipes; standing water still freezes. Must drain system completely (winterization) or keep heat on with prevention methods (dripping, insulation).
What’s the most common cause of frozen pipes?
Inadequate insulation in unheated spaces (crawlspaces, attics, exterior walls) + temps below 20°F. Pipes on exterior walls without insulation freeze first.
Does insurance cover frozen pipe damage?
Usually yes for sudden bursts, but not if you failed to maintain heat or take reasonable precautions. Vacant home policies require winterization. Check your policy, and document prevention steps.
