Home / Repipe a house cost / California, CA
Cost by state
Cost to repipe a house in California (2026)
The short answer
Repiping a house in California typically costs about $4,600 to $17,100, well above the national baseline, primarily because California plumber wages run about 14 percent above the national median. The state’s median home dates to around 1977, so galvanized steel supply pipe in older homes and copper lines routed through concrete slabs are the most common reasons local plumbers recommend a full repipe. These are our national repipe figures adjusted for California plumber wages. See how we localize a range.
California repipe cost by home size and material
| Job | Typical cost | Notes |
|---|---|---|
| 2 bath, 1,200–1,800 sq ft | $4,600–$12,500 | National $4,000–$11,000 at the CA wage index (1.14) |
| 3 bath, ~2,000 sq ft (PEX) | $6,800–$11,400 | National $6,000–$10,000 adjusted for California wages |
| 3 bath, ~2,000 sq ft (copper) | $9,100–$17,100 | National $8,000–$15,000 adjusted for California wages |
| Drywall repair after | $1,100–$3,400 | National $1,000–$3,000; commonly quoted separately |
| Plumbing permit | varies by city/county | Value-based or per-fixture; commonly several hundred dollars |
Sources: National repipe ranges (our parent page), O*NET local wages 47-2152, California state median (verified 2026-09-03), Census ACS B25035, California state median year built (verified via Census Reporter API). Figures are 2026 national ranges and vary by region, scope, and access.
We did not collect California-specific repipe quotes; California plumbers rarely publish whole-house repipe prices online. These figures are the national cited ranges multiplied by the California wage index (1.14). Note that in high-cost markets like the Bay Area or Los Angeles, actual bids may run above our state-wide formula because local overhead and permit fees vary significantly. Get multiple itemized quotes and compare them on scope, material, and whether drywall repair is included.
Why California repipe costs differ from the national baseline
Four verified local facts explain the California cost picture.
- Older housing stock with galvanized and copper-in-slab systems. The median California home was built around 1977 (Census ACS table B25035). Homes from the 1950s through 1960s frequently used galvanized steel supply pipe, which corrodes from the inside over time, restricting flow and discoloring water. Many 1970s homes used copper supply lines routed through the concrete slab foundation, a configuration that makes spot repairs expensive and drives the recommendation toward a full overhead repipe. [source]
- California plumber wages run about 14% above the national median. The state median annual wage for plumbers, pipefitters, and steamfitters (O*NET/BLS occupation 47-2152) in California is $72,830, versus $63,800 nationally. Higher labor cost is the primary reason California repipe quotes run above the national ranges, and it is larger still in the Bay Area, Los Angeles, and other high-cost metros where wages exceed even the state median. [source]
- CSLB C-36 license required for plumbing contractors. California plumbing contractors must hold a C-36 Plumbing Contractor license issued by the Contractors State License Board (CSLB). Before hiring, verify the license is current and in good standing at the CSLB check-a-license portal. Any unlicensed contractor performing plumbing work above $500 in California is operating illegally. [source]
- Permit fees vary significantly by jurisdiction. California plumbing permits are issued at the city or county level, and fee structures vary widely. Many jurisdictions calculate fees as a percentage of the declared project value or on a per-fixture basis. A full-house repipe permit in California commonly runs several hundred dollars. Your licensed contractor will pull the permit and schedule the required inspection. [source]
Local facts for California are cited inline above. Figures are 2026 and vary by home, scope, and access.
What moves the price in California
- Pipe material and routing. PEX is 30 to 40 percent cheaper than copper installed. In older California slab homes, rerouting through the attic or walls with PEX is the most common approach, avoiding the cost of cutting and repairing concrete.
- Home size and metro market. Bay Area and Los Angeles bids often run above our statewide formula because local overhead, permit fees, and prevailing wages exceed even the California state median.
- Galvanized vs. copper starting point. Galvanized steel pipe is typically faster to replace than slab-routed copper because the new route is overhead. Copper-in-slab systems require a decision on whether to reroute or try to access the slab, which drives up cost and timeline.
- Wall and ceiling access. Open drywall is quick to work in. Finished ceilings, tile, or plaster walls all add restoration cost, which in California can exceed the national average for finishing work too.
Permits and licensing in California
Permit: A whole-house repipe in California requires a plumbing permit from the local city or county building department. Fee structures vary by jurisdiction and are commonly value-based or per-fixture. Your licensed contractor pulls the permit and schedules the required inspection before the walls are closed.
Verify your plumber: Plumbing contractors in California must hold a C-36 Plumbing Contractor license from the Contractors State License Board (CSLB). Before you hire, confirm the license is current and in good standing at the CSLB license-verification page. Verification is free; any site charging for it is not the board.
Related guides
If a single leak in a slab is the immediate problem, start with our slab leak repair cost guide to understand whether a spot repair or a full repipe makes more sense for your situation. If the water heater is also failing, see water heater replacement cost. For the national picture, start with our whole-house repipe cost guide.
Repipe a house cost in other places we cover
Same job and the same method, with different local wages, permit rules, and pipe eras behind the number. For the national picture the local figures are built from, see our repipe a house cost guide.
Repipe a house cost in Jacksonville, FL
About $3,700 to $13,800, wage-indexed to the Jacksonville, FL metro (0.92) and cross-checked against published local price pages.
See the Jacksonville range →Repipe a house cost in Las Vegas, NV
About $3,800 to $14,100, wage-indexed to the Las Vegas-Henderson-North Las Vegas, NV metro (0.94) and cross-checked against published local price pages.
See the Las Vegas range →Repipe a house cost in San Antonio, TX
About $3,600 to $13,700, wage-indexed to the San Antonio-New Braunfels, TX metro (0.91) and cross-checked against published local price pages.
See the San Antonio range →Repipe a house cost in Tampa, FL
About $3,300 to $12,300, wage-indexed to the Tampa-St. Petersburg-Clearwater, FL metro (0.82) and cross-checked against published local price pages.
See the Tampa range →Repipe a house cost in Florida
About $3,300 to $12,500, wage-indexed to the Florida state median (0.83), with the state pipe-era context behind it.
See the Florida range →Every city and state we publish local figures for is listed on our plumbing cost by city and state index.
Related national cost guides
The national ranges behind the California figures above, and the jobs that most often come up alongside whole-house repipe.
Slab leak repair cost
Whether a spot repair under the slab makes more sense than replacing the whole supply system.
See the range →NationalBurst pipe repair cost
What a single failed line costs to fix when the rest of the pipe still has life in it.
See the range →NationalToilet installation cost
What resetting or replacing fixtures adds once the supply lines are open.
See the range →Get quotes from local pros
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Common questions
California repiping questions
How much does it cost to repipe a house in California?
A whole-house repipe in California typically costs about $4,600 to $17,100, with a common 2,000-square-foot home landing near $6,800 to $11,400 in PEX and $9,100 to $17,100 in copper. Drywall repair afterward often adds $1,100 to $3,400 and is commonly quoted separately. These are our national repipe figures adjusted for California plumber wages; see our methodology.
Why do California homes often need a repipe?
The median California home was built around 1977 (Census ACS B25035), which predates both PEX and CPVC. Homes from the 1950s and 1960s commonly used galvanized steel supply pipe, which corrodes from inside out, restricting flow and discoloring water over time. Many 1970s and 1980s homes used copper supply lines routed through concrete slabs. When those copper lines corrode or pinhole-leak, the entire supply system often needs replacement because accessing individual slab runs is costly and disruptive.
PEX or copper for a California repipe?
PEX typically costs 30 to 40 percent less installed and installs faster with fewer joints. Copper has a long track record and is sometimes specified by local water utilities. Both are code-compliant across California. In older homes with slab-routed copper, a PEX repipe overhead (through attic and walls) avoids the cost of opening concrete and is the more common approach. Ask your plumber which routing and material suits your home’s layout and your water chemistry.
Do I need a permit to repipe a house in California?
Yes. A whole-house repipe requires a building permit from the local city or county in California. Fees vary significantly by jurisdiction: they are typically calculated as a percentage of the work value or on a per-fixture basis, and can run several hundred dollars for a full repipe. Your licensed plumbing contractor normally pulls the permit and arranges the inspection. Confirm the contractor holds a valid C-36 Plumbing Contractor license from the Contractors State License Board (CSLB) before work begins.
Why does California repipe labor cost more than the national average?
California plumber wages are significantly above the national median. The state median annual wage for plumbers, pipefitters, and steamfitters (O*NET/BLS, 47-2152) in California is $72,830, compared with $63,800 nationally. That roughly 14 percent premium is reflected in our localized ranges, and is why California repipe costs run noticeably above the national baseline even before accounting for permit fees or material markups in high-cost-of-living markets.
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How to get an honest price
Start with the range. Use the cost tables here to learn the national range and what moves the price for your job.
Get it in writing. Ask two or three licensed plumbers for an itemized quote that separates parts from labor.
Compare like for like. Confirm the scope, warranty, and permit before you compare totals.
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