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Monday - Friday: 7:00 AM - 6:00 PM
Serving San Luis Obispo and Surrounding AreasAbout 70 miles from Casmalia — roughly an hour and 10 minutes up Highway 101
Paso Robles is the furthest north we go, about seventy miles and just over an hour up Highway 101. It is also the most extreme end of our service area in plumbing terms: the hardest water and the coldest winter nights of anywhere we work.
North County trips are scheduled rather than dispatched on a moment’s notice, and we will tell you plainly when a coastal emergency will delay a Paso Robles arrival. What we will not do is quote a response time we cannot make from Casmalia.
In practice that makes Paso Robles a planned-work market for us: water heater replacement, pipe repair and repiping, leak detection, drain cleaning, bathroom plumbing and new construction. Book it and you get the owner of the company on site, not whoever happened to be nearest when the call came in.
William's Plumbing is owner-operated out of Casmalia, CA — William Henson does the work himself, and has been serving San Luis Obispo County since 2022.
North County groundwater commonly tests in the "hard" to "very hard" range. That scale builds inside water heaters, shortens their service life, narrows supply lines and leaves fixtures crusted and aerators clogged. Water heater work and treatment questions make up a large share of what inland homeowners call about.
Unlike the coast, inland North County nights regularly drop into the 20s and 30s. Water expands about 9% as it freezes, and unprotected pipes in garages, crawl spaces, attics and exterior walls split under that pressure. Winterising hose bibbs and insulating vulnerable runs before the first cold snap is worth far more than the emergency call afterwards.
In very hard water, sediment collects in the bottom of a tank water heater and insulates the burner from the water above it. The tank works harder, runs louder, recovers more slowly and fails years early. Flushing on a schedule — or moving to equipment sized for the water it actually has to heat — is the difference between a maintenance visit and a replacement.
More detail on both: hard water on the Central Coast and winterising your pipes.
We offer every service below throughout Paso Robles. The first three are the ones Paso Robles homeowners call about most, given the water and climate conditions described above.
About 70 miles from Casmalia — roughly an hour and 10 minutes up Highway 101. the emergency line is answered 24/7; regular hours are Monday - Friday: 7:00 AM - 6:00 PM and Saturday: 8:00 AM - 4:00 PM.
Call (805) 314-9267 or request a free quote online. See every community we serve.
Call (805) 314-9267 for 24/7 emergency plumbing, or request a free quote online.
🚨 24/7 Emergency Service Available — (805) 314-9267