Plumbing leak detection in San Rafael for water, gas, slab and radiant heat leaks, handled by crews from our San Rafael office.
Leak detection in San Rafael is handled from our own front door. John Owens Services has an office at 710 C St, Suite 211, and when you call about a leak you reach the same family-owned company that has served Marin and Sonoma County since 1986. Tell us what you have noticed, and we will take it from there.
Plumbing leak detection covers more than a dripping pipe. We locate leaks in supply lines, drain lines, underground water lines, concrete slabs and radiant heating systems, and we trace gas leaks when safety is the concern. Video, acoustic and tracer gas tools let us pinpoint the source before anyone picks up a hammer.
After that, you get a clear explanation and a recommendation. We repair what we find, whether it is a water leak, a gas line or a failing pipe, and we suggest replacement only when repair will not hold up. Related help is on our Plumbing Repair and Water Heater Repair pages.
Our home office is at 710 C St, Suite 211. San Rafael customers deal with a local, family-owned contractor, not a call center.
We use acoustic listening equipment to hear the leak through the ground, pipe location tools to trace the line, and tracer gas when needed. Together they point us to the spot, so any digging is limited to that area. We then explain what we found and the repair options available.
Yes. Radiant heating pipes sit under floors and inside slabs, so a leak can go unnoticed for a while. A heating system that keeps losing water or warm, damp patches on the floor are clues. We locate the leak with acoustic and video equipment, then explain what the repair involves.
Check that the company is licensed and insured, can repair what it finds, and explains its findings before work begins. John Owens Services holds California license #501853, offers leak detection and plumbing repair together, and has been family owned since 1986. Ask any company how it finds leaks without opening walls.
Yes. After detection, we talk through the repair, from a small fix to replacing a damaged section of pipe. Senior and veteran customers receive $50 off any repair. Financing is available for larger jobs, and we only suggest replacement when repair will not hold up.
Yes. If you smell gas, leave the home immediately, avoid flames or sparks, and call your gas utility first. Once the area is safe, we can inspect your gas piping and find the source of the leak. Gas leak sensors can add a layer of early warning.
In the last two years our technicians completed 103 leak detection jobs at San Rafael homes, most recently in October 2026.
Most of that work is in San Rafael ZIP codes 94903 and 94901.
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.