Los Angeles, CA · plumbing service
Repiping in Los Angeles, CA
About two-thirds of LA housing predates 1980, and galvanized supply pipe in older homes causes low pressure and leaks. Call to be connected with an independent, licensed plumber who handles repiping in Los Angeles; they diagnose the problem and quote the work before starting.
By calling, you agree to be connected with an independent plumbing contractor serving your area. Calls may be recorded for quality and training. The call and referral are free, and you are never obligated to hire.- Licensed local plumbers
- Free call and referral
- You approve the quote first
Common signs
- Rusty water
- falling pressure
- repeated pinhole leaks
Repiping services in Los Angeles
- RepipingReplacing old galvanized, polybutylene or failing copper lines.
- Pipe RepairLeaks, corrosion, cracked lines and low pressure from damaged pipes.
- Leak DetectionHidden leaks behind walls, ceilings or floors, or a bill that suddenly jumps.
- Water Line RepairLeaks and breaks in the main line from the meter.
- Water Pressure ProblemsDiagnosing low or high water pressure.
Problems repiping fixes
- Rusty or discolored water
- Pinhole leaks in different places
- Falling water pressure
- Galvanized or polybutylene supply pipe
Why repiping comes up in Los Angeles
About two-thirds of LA housing predates 1980, and galvanized supply pipe in older homes causes low pressure and leaks.
With 69% of Los Angeles's housing built before 1980, a large share of homes still has original galvanized steel or early copper supply lines. Galvanized pipe rusts from the inside, which is why repiping questions here usually start with brown water or falling pressure.
- Typical home built
- 1965
- Homes before 1980
- 69%
- Water hardness
- 8.6 gpg
- hard
- Winter freezes
- Rare
How the work is done
- 1Survey the systemIdentify the pipe material, its condition and the fixture count.
- 2Plan the routeChoose PEX or copper and plan wall openings to keep them small.
- 3Permit and installRepiping usually requires a permit; fixtures are reconnected in stages.
- 4Pressure test and patchTest before inspection; openings are patched afterward.
What affects the price
The plumbing company sets the price after seeing the job; ask for it in writing before work starts.
- Size of the home and number of fixtures
- PEX or copper
- Access through walls, attic or crawlspace
- Drywall repair
- Permit and inspection
Plumbing work we connect Los Angeles homeowners with
Repiping in Los Angeles: questions
Why is repiping a common call in Los Angeles?
About two-thirds of LA housing predates 1980, and galvanized supply pipe in older homes causes low pressure and leaks.
How old are most homes in Los Angeles?
The median home in Los Angeles was built in 1965, and 69% of homes were built before 1980 (U.S. Census Bureau, American Community Survey).
How hard is Los Angeles's water?
About 8.6 grains per gallon (hard), per Los Angeles Department of Water and Power, Water Quality FAQs (2022 data).
Does repiping in Los Angeles need a permit?
Usually, when piping changes; the plumber normally pulls it.
Should old pipes in a Los Angeles home be repaired or replaced?
One leak in otherwise sound pipe is usually repaired; when galvanized or failing pipe leaks in several places, repiping costs less over time. In Los Angeles: about two-thirds of LA housing predates 1980, and galvanized supply pipe in older homes causes low pressure and leaks.
Repiping near Los Angeles
- Repiping in San Jose, CARepiping in San Jose, CA: older galvanized and early copper supply lines in mid-century homes cause pressure loss and pinhole leaks.
- Repiping in San Francisco, CARepiping in San Francisco, CA: many pre-war buildings still have galvanized supply pipe, which corrodes and narrows over decades.
- Repiping in Oakland, CARepiping in Oakland, CA: galvanized supply lines in pre-war homes cause low pressure and rusty water.
- Repiping in Fresno, CARepiping in Fresno, CA: older homes may still have galvanized supply lines that restrict flow and leak.
- Repiping in Sacramento, CARepiping in Sacramento, CA: about half of homes predate 1980, many with galvanized supply lines.
- Repiping in Long Beach, CARepiping in Long Beach, CA: about 77% of homes predate 1980, and galvanized lines in older homes corrode.
More plumbing services in Los Angeles
Local rules and details for Los Angeles
Los Angeles facts behind this page
For repiping that changes or replaces piping, Los Angeles's plumbing code and permit rules apply (see the source below). Ask the plumber whether your job needs a permit and who pulls it; a licensed plumber normally does.
- The median home in Los Angeles was built in 1965. [1]
- About 69% of Los Angeles's housing units were built before 1980, the era of galvanized steel supply pipe, cast iron drains and clay sewer laterals. [1]
- LADWP reports hardness varying by area: about 8.6 grains per gallon on average in the San Fernando Valley and western LA, 9.8 in Silver Lake, Downtown and South LA, and 16.3 in eastern LA and the Harbor, because the city blends several water sources. [2]
- Construction and plumbing code questions in the City of Los Angeles are handled by the Los Angeles Department of Building and Safety (LADBS), which enforces the city's plumbing code. [3]
Other common plumbing calls in Los Angeles
- Water Heater Repair: hard water, up to about 16 grains per gallon in parts of the city, builds sediment in tank heaters and shortens their life.
- Toilet Installation: california requires older single-family homes to replace high-flow fixtures, and remodels trigger the requirement.
Sources (3)
- U.S. Census Bureau, ACS 2024 1-year (B25035) · checked 2026-10-01
- Los Angeles Department of Water and Power, Water Quality FAQs (2022 data) · checked 2026-10-01
- LADWP, State and City Plumbing Codes · checked 2026-10-01