Signs to watch for
Signs you need repiping
- House-wide low water pressure
- Known polybutylene or galvanized steel supply piping
- A pipe has burst after freezing
- Rusty or discolored water at multiple fixtures
The job itself
How repiping is done properly
Repiping & Pipe Repair is handled by independent licensed plumbers in California. This page covers what the work involves, what changes the price, and the California code and permit rules that apply. Published ranges are on the separate repiping costs page. Locally, the biggest markets for it are Los Angeles, San Diego, San Jose. Requests for it often arrive alongside plumbing inspection.
- The existing system is mapped and material and condition documented
- Pipe material and routing are selected (PEX, copper, CPVC)
- Permits are pulled and the work is staged to limit water-off time
- New lines are run, fixtures reconnected, and the system pressure-tested
- Openings are patched and the work is inspected
Price drivers
What drives repiping pricing in California
- 01
Number of fixtures, bathrooms and stories
- 02
Pipe material chosen
- 03
Slab versus crawl space versus accessible basement routing
- 04
How much drywall, tile or plaster must be opened and restored
- 05
Whether the water service line and main shut-off are replaced at the same time
- 06
Permit and inspection requirements
Scope boundary
What a standard visit covers — and what is billed on top
The single biggest source of quote disputes is the boundary between these two columns. Get it written down before work starts.
| Normally included | Commonly billed on top |
|---|---|
| Mapping the existing system and planning the new pipe routes | Drywall, plaster or tile restoration, texturing and repainting after the work |
| Running new hot and cold distribution lines to every fixture | Trenching under a slab, or rerouting lines through the attic |
| Permit application and the required rough-in and final inspections | Replacing the water service line, main shut-off or pressure regulator |
Local pages
Repiping by city in California
Each city page adds local ZIP coverage, permit authority and routing detail.
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Los Angeles
Los Angeles County
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San Diego
San Diego County
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San Jose
Santa Clara County
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San Francisco
San Francisco County
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Fresno
Fresno County
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Sacramento
Sacramento County
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Long Beach
Los Angeles County
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Oakland
Alameda County
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Bakersfield
Kern County
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Anaheim
Orange County
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Riverside
Riverside County
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Santa Ana
Orange County
Before you sign
Questions to ask before authorizing repiping
- 01
Which pipe material is proposed for the new distribution lines, and how does that material perform with local water chemistry?
- 02
How many days will water be shut off, and will a temporary supply keep at least one bathroom usable overnight?
- 03
Does the scope cover drywall patching, texturing and paint, or only closing the access openings in rough condition?
- 04
Will every fixture, hose bib and appliance line be reconnected, including the water heater, ice maker and outdoor spigots?
Before anyone touches a pipe
Verify the license. It takes two minutes.
- Who licenses the work: Contractors State License Board (CSLB).
- Who pulls the permit: the licensed contractor, never the homeowner.
- What to ask for: the license number, the registered name behind it, and an insurance certificate issued to the property address.
Answers first
Repiping in California — questions homeowners ask
How do I know if my house needs repiping?
The usual triggers are the material itself (galvanized steel or polybutylene), repeated pinhole leaks across the system rather than at one spot, and discolored water at multiple fixtures. One leak in one place is a repair; a pattern across the house is a repipe conversation.
PEX or copper?
PEX installs faster, costs less in labor, tolerates freezing better and has fewer joints in walls. Copper has a longer track record and is preferred by some jurisdictions and some buyers. Local code, water chemistry and your resale plans all factor in — ask the contractor to justify the choice for your specific house.
How long does a whole-house repipe take?
For a typical single-family home, commonly a few days of pipe work plus separate drywall repair and inspection. Water is usually off only for part of each working day rather than continuously.
Are night and weekend calls handled differently in California?
Requests route around the clock, but most contractors price after-hours work differently. Ask for the after-hours rate and a committed arrival window before agreeing to a dispatch.
What information speeds up a repiping callback?
Three things: where the water or problem is showing, whether the supply is shut off, and the property type — slab, crawl space or basement. With those, a pro covering California can triage the urgency and bring the right parts.
How should a repiping quote be compared?
Line by line against scope: what is included, what is excluded, who pulls the permit, and whether haul-away and restoration are inside the number. The cost guides on this site list published third-party ranges so any quote can be sanity-checked.
Who handles the permit for repiping in California?
The licensed contractor pulls the permit — never the homeowner. If a contractor proposes skipping a required permit, treat that as the signal to stop and verify the license.
What warranty applies to the work?
Whatever the contractor offers in writing — PlumberCalifornia is not a party to the agreement. Ask for labor and parts warranty terms in the quote, and keep the license number with the paperwork.
Get connected
Repiping in California
The form takes half a minute. It routes to an independent licensed pro covering California; everything else — scope, timing, price — you agree with them directly, license verified first.
- Requests handled around the clock
- An independent licensed pro calls you back
- No obligation to hire
Prefer a call back?
Quick form in, licensed pro's call back out.
Request received
It has been routed to an independent licensed professional covering your area — they will call you back on the number you entered.
Keep reading
See also
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Cost guide
Repiping cost ranges in California
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Services
All plumbing services
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Licensing
California licensing and permits