Plumber in Valencia, Santa Clarita

Valencia, inside and outside the city

Valencia is where Plumbing by Kirk’s shop is, on Avenue Tibbitts, inside the City of Santa Clarita. When the city incorporated in 1987, Valencia was one of its four founding communities, with Newhall, Saugus and Canyon Country, but the city line doesn’t take in all of it. The county’s area plan says both the city and the county have jurisdiction over parts of Valencia, and Supervisor Barger’s list of unincorporated areas includes a portion of it.

Valencia by FivePoint, west of Interstate 5, is county land. Computed from the Census Bureau’s 2020 relationship file, about a quarter of the land in ZIP 91355 lies outside any city.

That line decides more than a mailing address. On the city side, permits are issued at City Hall’s Permit Center, 23920 Valencia Boulevard; on the county side, by LA County Public Works from its valley office at 23757 Valencia Boulevard. To see which side an address falls on, enter it in the Residency Status Verification Tool linked from the city’s annexations page; the permit then comes from whichever office covers it.

Valencia by FivePoint

The Sanitation Districts place Valencia by FivePoint in the Newhall Ranch Sanitation District’s service area. The county adopted the Newhall Ranch Specific Plan on May 27, 2003: 11,963 acres from about a mile west of Interstate 5 to the Ventura County line, allowing 20,885 homes in villages that include Landmark, Mission, Homestead and Potrero, by the county’s area plan. Despite the name, Newhall Ranch isn’t in Newhall. The county’s service locator returns unincorporated territory at points in Mission Village and in Entrada South, assigned to the county’s Santa Clarita Valley office for building and safety, so a plumbing permit there comes from the county, not the city.

FivePoint also has its own softener rules. The Newhall Ranch Sanitation District adopted an ordinance on September 1, 2026, and from October 1, 2026, salt-based softeners are prohibited in its service area. FivePoint’s CC&Rs already prohibited installing them. If you own one that went in before October 1, 2026, the Sanitation Districts will buy it back for up to 100% of its purchase price and have it removed at no charge by a plumber they authorize, until September 30, 2027.

The State Water Board’s boundary data puts the same Mission Village and Entrada South points inside SCV Water’s system, so the water there comes from SCV Water, like the rest of Valencia.

Tesoro del Valle and Westridge

Tesoro del Valle is city land now. Its annexation took effect on November 14, 2022, the city’s 41st, so its homes get plumbing permits from the city rather than the county, and its water comes from SCV Water. The city’s annexations page still lists it under possible future annexations, but the city’s annexation table dates it to 2022.

Westridge, by contrast, is county land: the county’s area plan files it under West Ranch, with Stevenson Ranch, so its permits come from the county rather than the city. The Stevenson Ranch page covers it.

Water heater repair in Valencia

Valencia’s two ZIP codes are 16 years apart at the median. In 91355 the median home dates from 1984, and 36.1% were built in 1979 or earlier; in 91354 the median is 2000, and 18.6% were built in 2010 or later, in the Census Bureau’s survey estimates for 2020 to 2024. A house from either median year has outlasted a tank water heater at least twice: a conventional tank averages 8 to 12 years, and the hard water here forms scale inside it.

Signs a heater needs a look include no hot water or not enough, water at the base of the tank, rusty hot water and a tank that rumbles. For the fixes, see water heater repair; for a new tank, water heater replacement explains the swap and the earthquake bracing or strapping California requires. At a city address a changeout is an instant online permit, with fees of $102, plus the 10% record maintenance fee where it applies; in Valencia by FivePoint it can go through the county’s express permits, with $65.82 in county fees.

Hard water scales a tankless unit’s heat exchanger too, and tankless water heaters covers installing them and descaling them in valley water.

Drain cleaning in Valencia

Inside the house, kitchen drains usually clog with grease and bathroom drains with hair, and a blocked main line backs up at the lowest drain in the house. For drain cleaning, Kirk’s crew finds the cause first, then clears the clog with a drain cable or, when grease or roots line the pipe, a hydro jetter.

Past the house, the address decides who answers for the pipe. At a city address the owner’s lateral runs from the house to the public sewer, the connection included, unless a clean-out sits in the sidewalk or no more than two and a half feet from the property line, in which case the owner’s part ends there. LA County’s Sewer Maintenance Division maintains the city’s sewers under contract, so a manhole overflowing outside is reported to LA County Public Works, (800) 675-4357. From there, the valley’s wastewater goes to the Valencia or Saugus water reclamation plant.

Valencia’s water

Valencia’s tap water comes from SCV Water, whose customer care office is at 24631 Avenue Rockefeller in Valencia. In its 2026 report, the groundwater averages 354 mg/L of hardness and the imported surface water 160, and the report doesn’t say which towns get more of which. That hardness is what leaves the spots SCV Water mentions on glass and shower doors, and what forms scale in water heaters.

SCV Water is also building a $21.1 million treatment plant on Bridgeport Lane, across the street from the city’s Bridgeport Park in ZIP 91355, to restore water quality at three of its wells, S6, S7 and S8, with approximate dates of October 2025 to April 2027.

Automatic salt-based softeners are not allowed anywhere in Valencia, on the city or the county side. The valley’s softener ban has the rules in full, and water softeners sets out the options allowed for scale.

Kirk’s crew also covers Stevenson Ranch, Newhall and Saugus, and the other towns on the Santa Clarita Valley page. For a plumbing job in Valencia, call the shop with your address and what is wrong.