Plumber in Mill Valley for toilet repair, garbage disposal repair, pipe leaks and fixture installs. Free estimates on replacements.
Our Mill Valley plumbing work starts with a question: what is actually causing the problem? A toilet that will not stop running, a garbage disposal that leaks, or a pipe that weeps under the sink can look minor and still do damage. We trace the cause first. Then we explain your options and the cost of each, so you decide.
John Owens Services has served Marin and Sonoma County since 1986, and Mill Valley is served from our San Rafael office. We follow the John Owens Way: maintain first, repair when needed, replace last. That keeps you from paying for a new fixture when a repair will do the job.
When a replacement is the better choice, we install it, and the estimate is free. Financing is available, and our in-house rebate department can help you apply for qualifying utility rebates. Related work is close by: drain cleaning for stubborn clogs, leak detection for hidden leaks, and water heater service.
A plumber who looks for the root cause, shows you the choices, and does not push a replacement you do not need.
Call John Owens Services. We repair running toilets, leaks at the base and weak flushes, and we install new toilets when a repair no longer makes sense. We tell you the cause and the options before we start work, and replacements come with a free estimate.
Often it can be repaired. A jam or a loose connection is a quick fix. If the unit leaks from the body or keeps failing, replacement is usually the better choice. We look at it, explain what we find, and install a new one if needed.
Repeated clogs can mean a larger blockage further down the line. A plumber can use a sewer camera, a drain snake or a hydrojetter to find and clear it. A plunger only treats the symptom, so a clog that keeps returning deserves a proper look.
Shut off the water at the nearest valve if you can, then call us. Pipe leaks do more damage the longer they run. We find the source, repair or replace the damaged section, and tell you if anything else in the line looks worn.
A sewage smell can be a warning of a backup in your pipes. It is best to call a plumber so the line can be inspected before the problem grows. We find the source, explain what we see, and recommend the right fix for it.
Yes, call us right away for a burst pipe, a major leak, no water or a sewage backup. Shut off the main water valve first if you can. Our San Rafael office answers Monday through Friday, 7:30 AM to 5:30 PM, and fits urgent calls in the same day whenever the schedule allows. We will tell you honestly when a plumber can get there.
In the last two years our technicians completed 238 plumbing jobs at Mill Valley homes, most recently in October 2026.
Most of that work is in Mill Valley ZIP code 94941.
Counts are completed jobs from our own service records, updated October 2026.
From the Marin coast to Sonoma wine country, we bring honest plumbing, heating & cooling to homeowners across both counties — based locally since 1986.