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Plumbers in the Antelope Valley
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About plumbers in the Antelope Valley
Find plumbers who work in Lancaster, Palmdale, Quartz Hill and Rosamond, for water heaters, leaks, drains, gas lines and repiping. Our team reviews every listing before it goes live, and you can call or send a request from each plumber's page. Below is what Antelope Valley water and winters mean for your plumbing, and the license a California plumber needs.
Most Lancaster and Palmdale homes get a blend of State Water Project water and local groundwater from Los Angeles County Waterworks District 40 or Palmdale Water District. Their 2025 water quality reports show average hardness of about 95 to 116 milligrams per liter, which the U.S. Geological Survey calls moderately hard, and some local wells run much harder. Hard water leaves mineral scale in water heaters and fixtures, and your supplier's yearly Consumer Confidence Report shows the figures for your water.
Winter matters too: Lancaster and Palmdale average 50 to 70 freezing nights a year. Palmdale Water District advises draining garden hoses, covering outdoor faucets, draining the evaporative cooler's water line, wrapping pipes near outside walls and in crawl spaces, and letting cold water trickle during a hard freeze. Never thaw a pipe with a torch. Pipes on the house side of the meter are the owner's responsibility.
California licenses plumbers under the Contractors State License Board's C-36 classification, which covers water heaters, gas piping from the meter to the house and septic systems. State law requires every home water heater to be braced or strapped against earthquakes, and a seller must certify this in writing. Outside sewer areas, thousands of Antelope Valley properties use septic systems (about 17,000 in a 2018 county estimate). Los Angeles County Environmental Health oversees them in Lancaster, Palmdale and unincorporated areas like Quartz Hill, and Kern County Environmental Health requires a permit to repair or replace one in Rosamond.
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Frequently asked questions
- Is the water hard in Lancaster and Palmdale?
- Moderately hard on average. 2025 water quality reports from Los Angeles County Waterworks District 40 and Palmdale Water District show averages of about 95 to 116 mg/L (roughly 5.5 to 7 grains per gallon), and some wells are harder. Quartz Hill Water District's 2025 average was lower, about 63 mg/L. Your supplier's Consumer Confidence Report lists the figures for your water.
- Does my water heater need earthquake straps?
- Yes. California Health and Safety Code section 19211 requires new, replacement and existing home water heaters to be braced, anchored or strapped to resist falling or moving in an earthquake, following the California Plumbing Code. When a home is sold, the seller must certify this to the buyer in writing. A plumber can check or add straps when servicing your heater.
- How do I keep pipes from freezing in the high desert?
- Palmdale Water District recommends draining hoses, covering outdoor faucets, draining the evaporative cooler's supply line, wrapping pipes near outside walls and in crawl spaces, and letting cold water trickle on the hardest freezing nights. If a pipe does freeze, never thaw it with a torch. Pipes on your side of the meter are your responsibility, so call a plumber for a break.
- What license does a plumber need in California?
- A C-36 Plumbing license from the Contractors State License Board. Since 2025, unlicensed workers may take only jobs under $1,000 that need no permit and no helpers, and their ads must say they aren't licensed. Check any license number on the CSLB website before you hire.
- Who handles septic permits in the Antelope Valley?
- Los Angeles County Public Health's Environmental Health division regulates septic systems in unincorporated areas like Quartz Hill and, by agreement, in Lancaster and Palmdale. In Rosamond, Kern County Environmental Health requires a permit before anyone builds, alters, repairs or replaces a septic system. Septic work is part of the C-36 plumbing license.
