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Ventura County · Oxnard–Thousand Oaks–Ventura metro

Plumbing Services in Thousand Oaks, CA

Need help with a slab leak, a failing water heater or a clogged drain in Thousand Oaks? Call (833) 878-1592 to describe the problem and get connected with a licensed local plumber.

Call (833) 878-1592By 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.Request service online

Calling is free. Repairs are done by independent, licensed plumbing companies serving Thousand Oaks and Ventura County.

Plumbing help in Thousand Oaks

Plumb Right Now arranges plumbing repair, drain and sewer service, water heater work and emergency help in Thousand Oaks, CA, through independent licensed local plumbers. The calls that come up most here are slab leak repair, water heater replacement and repiping. Call (833) 878-1592 to describe the problem and get connected with a local plumber.

Row of copper pipe fittings
Stock photo of residential plumbing work.

Most requested plumbing services in Thousand Oaks

Start with the service that matches your problem. Services marked “Common in Thousand Oaks” are the calls local housing and conditions produce most in Thousand Oaks.

Emergency plumbing in Thousand Oaks

Call (833) 878-1592By 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.

Shut off your main water supply if it's safe to do so. The emergencies below are listed most likely first for Thousand Oaks homes, based on local conditions. See also what to do in a plumbing emergency.

When to call, and what to do first

For the problems Thousand Oaks homeowners call about most, and why they come up here:

  • Slab Leak Repair

    Why it comes up in Thousand Oaks: Copper under 1960s–80s slabs develops pinhole leaks.

    Signs:
    Warm floor spots, sound of running water, a spinning meter
    Urgent when:
    Water surfacing through the floor or a large bill jump
    Before help arrives:
    Close the main shutoff if water is visible
    Repair or replace:
    One leak: spot repair. Repeated leaks: reroute the lines
  • Water Heater Replacement

    Why it comes up in Thousand Oaks: Hard imported water scales tanks.

    Signs:
    Water around the tank base, rusty hot water, a tank past 10 years
    Urgent when:
    The tank itself is leaking
    Before help arrives:
    Turn off gas or power and close the cold-water valve
    Repair or replace:
    Leaking tank: replace. Failed part on a younger tank: repair
  • Repiping

    Why it comes up in Thousand Oaks: Repeated leaks in aging copper make a repipe worthwhile.

    Signs:
    Rusty water, falling pressure, repeated pinhole leaks
    Urgent when:
    Leaks keep recurring in different places
    Before help arrives:
    Note where leaks and rust appear; check the pipe at the water heater
    Repair or replace:
    One leak: repair. Failing pipe throughout: repipe

Why Thousand Oaks homes need these repairs

Thousand Oaks is a mostly owner-occupied Conejo Valley suburb of 1960s–80s homes among oak-covered hills. Its city water is nearly all imported State Water Project water through Calleguas, and hard water, slab leaks and hillside pressure drive the calls.

Local conditions behind Thousand Oaks plumbing problems

Median home built
1978
Built before 1980
56%
Owner-occupied
76%
Water hardness
See below
Winter
Hard freezes are rare
Plumbing code
Local

Thousand Oaks service pages

Pipe problems in Thousand Oaks's 1970s homes

The median home in Thousand Oaks was built in 1978, and 56% of homes predate 1980. Homes from that era were typically built with copper supply, early plastic (ABS or PVC) drains, some cast iron, which is where leaks, low pressure and drain problems usually start as they age.

Median home: 1978
1900195020002025
  • Galvanized steel supply (1900–1960)
  • Copper supply (1950–2000)
  • Polybutylene (some homes) (1978–1996)
  • PEX / CPVC (1995–today)
Typical supply-pipe materials by construction year. Many older homes have been partly repiped since.

Thousand Oaks's water supply and your plumbing

In 2023, 99% of Thousand Oaks's city water supply came directly from the State Water Project, purchased through Calleguas Municipal Water District, and 1% from Lake Bard. [1]

The State Water Project supply originates at Lake Oroville, where Sierra Nevada snowmelt and runoff is stored. [2]

Thousand Oaks plumbing questions

How do I know if my Thousand Oaks home has a slab leak?

Warm spots on the floor, the sound of running water with everything off and a meter that keeps moving are the usual signs; a plumber can pinpoint it before opening the floor. Why it comes up in Thousand Oaks: Copper under 1960s–80s slabs develops pinhole leaks.

When is a leaking water heater an emergency in Thousand Oaks?

A leak from the tank itself won't stop and usually means replacement; turn off the gas or power and the cold-water valve, then call. Why it comes up in Thousand Oaks: Hard imported water scales tanks.

Where does Thousand Oaks's water come from?

Nearly all of the city's water is State Water Project water from Northern California, bought through Calleguas.

Is my Thousand Oaks home on city water?

Not necessarily. Parts of Thousand Oaks are served by California American Water or other providers. Your bill names yours.

Why is Thousand Oaks water hard?

Imported water carries minerals, so softeners and yearly water heater flushes are common.

Do hillside homes in Newbury Park have pressure problems?

Elevation changes can push street pressure high. A regulator near 60 psi protects pipes and fixtures.

Sources (3)
  1. U.S. Census Bureau, ACS 2024 1-year (B25035) · checked 2026-10-01
  2. City of Thousand Oaks, Thousand Oaks Water Exceeds Standards · checked 2026-10-05
  3. City of Thousand Oaks, Thousand Oaks Water Exceeds Standards · checked 2026-10-05
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