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Plumbing Services in San Rafael, CA

Same-day plumbing repair for San Rafael homes — from Eichler slab leaks in Terra Linda to galvanized pipe failures in Gerstle Park.

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Local ExpertsSince 1986
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San Rafael is the oldest city in Marin, and its plumbing shows it — galvanized supply lines in Gerstle Park and Dominican that have rusted nearly shut, mid-century copper running through Eichler slabs in Terra Linda and Marinwood, and clay sewer laterals under Sun Valley's mature oaks that draw in roots every rainy season. We've worked these systems since 1986, so we know which San Rafael problems are quick fixes and which ones are hiding water damage behind a wall. From the low-lying Canal and Santa Venetia flats to the steep streets above downtown, John Owens Services shows up the same day, diagnoses the real cause, and fixes it right the first time.

Why San Rafael Homeowners Choose John Owens

  • Local since 1986 — we know San Rafael's housing stock cold, from 1950s Eichler tracts in Terra Linda and Marinwood to the Victorians and bungalows around Gerstle Park and downtown
  • Slab-leak and in-slab radiant pipe experience that most general plumbers don't have — a real need in the Eichler neighborhoods where original copper runs through the concrete
  • Licensed (CA C-36 #501853) and insured, so permitted repairs to supply lines, sewer laterals, and gas pass inspection the first time
  • We diagnose before we dig — leak detection and camera-scoped sewer lines mean we open the right wall or trench the right spot, not a guess
  • Same-day service across Marin, with a real local crew rather than a dispatch routed in from out of county
  • a 4.9-star Google rating and happy customers from neighbors in San Rafael, San Anselmo, and across the North Bay

Signs You Need Plumbing in San Rafael

  • Rusty or brown water and weak pressure at the tap — classic signs of failing galvanized supply lines in older San Rafael homes
  • A warm spot on a slab floor, an unexplained jump in your MMWD water bill, or the sound of running water with everything off — possible slab or in-slab radiant leak in a Terra Linda or Marinwood Eichler
  • Slow or gurgling drains and recurring backups, especially after heavy winter rain — often tree-root intrusion in a clay sewer lateral
  • Sewage odors or backups in low-lying areas like the Canal or Santa Venetia, where the high water table and tidal influence stress older laterals
  • Visible corrosion, mineral crust, or moisture at pipe joints and shutoff valves — hard MMWD water takes a toll on aging fittings

Frequently Asked Questions

How fast can you get a plumber to my San Rafael home?

In most cases we offer same-day plumbing repair across San Rafael and Marin County, and we prioritize active leaks and sewer backups. Call us and we'll give you a realistic arrival window, not a vague all-day promise.

Do you handle slab leaks in Terra Linda and Marinwood Eichlers?

Yes — the original copper running through those concrete slabs is a common San Rafael repair for us. We pinpoint the leak with electronic detection first, then recommend a spot repair or a reroute so we're not jackhammering blindly.

My older San Rafael house has low water pressure and rusty water. What's going on?

That's almost always corroded galvanized supply piping, common in pre-1960 homes around Gerstle Park, Dominican, and downtown. We can confirm it and walk you through repiping options that restore full pressure and clean water.

Are your plumbers licensed and insured?

Every job is performed by John Owens Services under California contractor's license #501853, fully licensed and insured. That means permitted, code-compliant work that passes inspection — important for sewer, gas, and supply-line repairs in Marin.

Proudly Serving Marin & Sonoma

From the Marin coast to Sonoma wine country, we bring honest plumbing, heating & cooling to homeowners across both counties — based locally since 1986.

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Schedule service with our trusted local team today.

Serving Marin & Sonoma Counties

Good plumbing, heating, and air conditioning systems are vital in every North California home. John Owens Services, Inc. is proud to be the expert plumbing company you can count on