Hidden plumbing leaks can quietly damage your home before they're visible. John Owens Services has helped Mill Valley homeowners with water, gas, irrigation, and slab leak detection since 1986 using professional diagnostic equipment and practical repair recommendations.
A hidden plumbing leak doesn’t always leave obvious clues. Water may escape beneath a concrete slab, inside walls, below crawlspaces, or under landscaping for weeks before you notice rising water bills, damp flooring, or musty odors.
John Owens Services provides professional leak detection throughout Mill Valley. Our technicians use specialized video leak detection equipment to pinpoint hidden leaks while minimizing unnecessary demolition for things like slab leak detection. Once we’ve identified the source, we’ll explain exactly what we found and recommend the most practical repair.
Many Mill Valley homes have aging plumbing systems, hillside construction, or older water lines that require careful water leak detection diagnosis before repairs begin. The goal of our leak detection company is always to locate the problem first, then recommend the right solution—not guess.
If repairs are needed, we also provide Plumbing Repair, Water Heater Repair, and Drain & Sewer Services throughout Mill Valley.
Since 1986, we’ve helped homeowners throughout Marin County solve plumbing problems with honest recommendations and careful diagnostics. The John Owens Way is simple when it comes to gas, water, or slab leak detection: maintain your plumbing whenever possible, repair when needed, and recommend replacement only when it truly provides the best long-term value. If you are in need of a water leak repair, we are the gas and plumbing leak detection experts who can help!
We locate water supply leaks, slab leaks, gas leaks, irrigation leaks, radiant heating leaks, and many other hidden plumbing leaks.
The goal of our plumbing and gas leak detection services is to locate the leak as accurately as possible before any demolition begins using video leak detection equipment. Once the leak is identified, we’ll explain what access is needed for repair.
Yes. After diagnosing the source with our video leak detection technology, we can discuss repair options and complete many plumbing repairs.
Yes. We regularly offer plumbing and gas leak detection work on older homes throughout Mill Valley and understand the plumbing challenges commonly found in these properties.
Leave the area immediately, avoid creating sparks or flames, and contact your gas utility. Once the situation is safe, our gas leak detection company can inspect your gas piping.
Yes. We are a leak detection cpmpany that has extensive experience with Eichler plumbing systems and radiant heating systems throughout Marin County.
From the Marin coast to Sonoma wine country, we bring honest plumbing, heating & cooling to homeowners across both counties — based locally since 1986.