Leak detection for hidden water, gas, slab and radiant heat leaks in Marin and Sonoma County, so repairs stay focused.
John Owens Services provides leak detection across Marin and Sonoma County for hidden water, gas, slab and radiant heating leaks. The clues are usually small: a higher water bill, a damp patch, a warm spot on the floor. Finding the exact source first helps limit damage and keeps the repair focused.
We use acoustic listening, tracer gas, thermal imaging and the FAST Aqua M300 to pinpoint the spot. Our San Rafael office serves Marin towns including Larkspur, Greenbrae, Mill Valley, Kentfield and Novato. Our Santa Rosa and Petaluma offices serve Sonoma County. Our team has experience with Eichler homes and their radiant heating leaks.
Once the leak is confirmed, our licensed plumbers explain your repair options, and we can also help with drain and sewer or water heater work if other systems are affected. If you smell gas, leave the area, avoid sparks and flames, and call your gas utility first. Senior and veteran discounts include $50 off any repair. Tell us what you have noticed when you call.
We pinpoint the source before any demolition, so you know what access the repair needs. The same licensed team can then do the repair.
Cost depends on the type of leak, where it may be and how much of the system needs to be checked, so we do not quote a number before we know your situation. Call us, tell us what you have noticed, and we will explain the next step and the options once the source is confirmed.
Our goal is to locate the leak as accurately as possible before any demolition begins, using slab and wall leak detection methods. Once the source is identified, we explain what access the repair needs. Slab leak repair cost depends on where the leak is and that access, so we talk about it once we know the source.
Yes. If you smell gas, leave the area immediately, avoid sparks and flames, and contact your gas utility first. Once the area is safe, we can inspect and diagnose the gas piping. We can also install gas leak sensors to help prevent future emergencies.
Yes. We locate leaks in radiant heating systems, including those in Eichler homes, where radiant heat and a water leak under a concrete slab are common concerns. Once we confirm the source, our licensed plumbers explain the repair options. Mill Valley, Kentfield and San Rafael homes are served from our San Rafael office.
Treat it as urgent. A hidden leak can lead to water damage, mold growth and higher water bills, so call us as soon as you suspect one. If you are not sure, check whether your water meter keeps moving when every fixture is off. Tell us what you find when you call.
One local team for plumbing, drains, heating, cooling, water heaters, electrical work, and building repair throughout Marin and Sonoma County.
From the Marin coast to Sonoma wine country, we bring honest plumbing, heating & cooling to homeowners across both counties — based locally since 1986.