The 30-Second Verdict
Both PEX and CPVC are Florida Building Code-approved and widely used. CPVC has a longer FL track record and handles chlorinated water well. Modern PEX installs faster (lower labor cost) and is equally durable when ASTM-certified. Ask your plumber what they prefer for your specific situation — and avoid any contractor still using non-certified PEX brands or proposing polybutylene pipe.
Head-to-Head Breakdown
PEX Pipe
Pros
- Faster installation — fewer fittings, flexible routing
- Lower labor cost due to simplified install
- Handles hot water well; won't burst from freezing
- Long lifespan (50+ years) when properly installed
Cons
- Some PEX types susceptible to chlorine degradation over time
- Cannot be used in direct sunlight without UV protection
- Some older recall-era PEX brands caused Florida claims
CPVC Pipe
Pros
- Excellent chlorine resistance — well-suited for FL municipal water
- Long FL track record since 1980s
- Solvent-weld joints are highly reliable when properly made
Cons
- More fittings required = more potential leak points
- Higher labor cost than PEX installation
- Rigid pipe is harder to route through finished walls
Side-by-Side Comparison
| PEX Pipe | CPVC Pipe | |
|---|---|---|
| Flexibility | Highly flexible — bends around obstacles without fittings | Rigid — requires fittings at every turn; more labor to install |
| Installation Speed | Faster — fewer fittings, easier routing through walls | Slower — more fittings, solvent-weld joints require cure time |
| Heat Tolerance | Rated to 200°F — handles FL hot water systems well | Rated to 200°F — similarly handles hot water applications |
| Chemical Resistance | Can be degraded by chlorine over long periods (especially in FL's high-chlorine water) | Excellent chlorine resistance — designed for chlorinated water systems |
| UV Resistance | Poor — cannot be used in sunlight; requires covering in outdoor runs | Better — can handle some UV exposure, though still not ideal |
| Lifespan | 50+ years expected; some FL issues with certain brands (Kitec, recall-era PEX) | 50+ years expected; long track record in FL since 1980s |
| Cost | Slightly less expensive material; lower labor cost due to fewer fittings | Similar material cost; higher labor due to fitting-intensive install |
| FL Code Status | Florida Building Code approved for residential water supply | Florida Building Code approved; longer residential history in FL |
Frequently Asked Questions
What pipe is in most Florida homes built before 1990?
Many pre-1990 FL homes have copper (good, but may have corrosion issues in acidic FL water), galvanized steel (needs replacement), or polybutylene (requires immediate replacement).
How much does repiping a Florida home cost?
Whole-home repipe typically runs $3,500–$8,000 for a 1,500–2,500 sq ft home in Florida, using either PEX or CPVC. Get at least 3 quotes from licensed FL plumbers.
Does Florida have specific plumbing code requirements?
Florida follows the Florida Building Code Plumbing volume, which is based on the International Plumbing Code with Florida amendments. Both PEX and CPVC are approved materials.