Fresno's housing stock spans decades, from pre-war homes in the Tower District to modern developments in northeast Fresno. Many of these homes still have their original plumbing, and some pipe materials have known lifespans. Understanding when repiping is necessary can prevent water damage and health concerns.
Signs You Need Repiping
Watch for these red flags:
- Consistently low water pressure — Mineral buildup or corrosion inside old pipes restricts water flow throughout the house
- Discolored or rusty water — Brown or yellowish water, especially when you first turn on taps in the morning, indicates corroding pipes
- Frequent leaks — If you're calling a plumber for leaks more than once a year, patching won't solve the systemic problem
- Water tastes or smells metallic — Corroding galvanized or lead pipes can affect water taste and quality
- Visible corrosion — Green staining at copper joints, white deposits on galvanized pipes, or flaking at pipe connections
- Pinhole leaks — Tiny leaks in copper pipes often indicate widespread internal corrosion
Pipe Materials by Era in Fresno Homes
Pre-1960: Galvanized Steel
Many homes in older Fresno neighborhoods (Tower District, Roosevelt, Fresno High) have galvanized steel pipes. These have a lifespan of 40-60 years and are well past their expected life. Galvanized pipes corrode from the inside out, gradually restricting water flow and eventually failing. If your home still has galvanized pipes, repiping should be a priority.
1960s-1990s: Copper
Copper became the standard and is generally excellent plumbing material with a 50-70 year lifespan. However, Fresno's hard water and soil chemistry can cause premature corrosion in some areas. Pinhole leaks in copper are a known issue in certain Central Valley neighborhoods.
1978-1995: Polybutylene (PB)
Some Fresno homes built during this period have polybutylene pipes (gray, blue, or black flexible plastic). This material is known to fail prematurely, and many insurance companies won't cover homes with PB pipes. If your home has polybutylene, repiping is strongly recommended.
1990s-Present: PEX and CPVC
Modern homes use PEX (cross-linked polyethylene) or CPVC. These materials are expected to last 40-50+ years and are resistant to corrosion and scale buildup. If your home has PEX, you likely don't need to worry about repiping for decades.
Copper vs. PEX: Which to Choose?
Copper
- Proven track record (50+ year lifespan)
- Naturally antibacterial
- Higher material and labor costs
- Susceptible to Fresno's hard water corrosion over time
- Typical cost for Fresno whole-house repipe: $8,000-$15,000
PEX
- Flexible — fewer connections means fewer potential leak points
- Resistant to corrosion and scale from hard water
- Lower material and labor costs
- Faster installation (less time with walls open)
- Typical cost for Fresno whole-house repipe: $4,000-$8,000
For most Fresno homeowners, PEX offers the best combination of performance, longevity, and value. Its resistance to hard water corrosion is a significant advantage in our area.
What to Expect During a Repipe
A whole-house repipe typically takes 2-5 days depending on the size of your home and accessibility of the pipes. The process involves:
- Cutting small access holes in walls and ceilings
- Removing old pipes and installing new ones
- Connecting to existing fixtures
- Testing the entire system for leaks
- Patching drywall (some companies include this, others don't — ask)
You'll be without water during the workday but should have full service by evening each day.
Find a Repiping Specialist
Repiping is a significant investment, so get multiple quotes and choose a company with specific repiping experience. Browse our Fresno plumber directory to find licensed professionals who specialize in repiping. Companies like Valley Star Plumbing, Goode Plumbing, and PDS Plumbing & Air all offer repiping services.