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Expert Tankless Water Heater Repair & Installation in Marin & Sonoma County

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Marin & Sonoma County Tankless Services:

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Why Homeowners Choose John Owens Services for Tankless Water Heaters

Tankless water heaters require proper sizing, installation, and maintenance to perform their best. Our experienced team helps homeowners evaluate whether a tankless system is the right fit, diagnose performance issues, and keep existing equipment operating efficiently. We focus on practical recommendations tailored to your home’s needs.

  • Serving Marin & Sonoma County since 1986
  • Licensed California contractor #501853
  • Maintain first, repair when needed, replace last
  • Experienced with tankless installation, repair, and maintenance
  • Systems sized for the home’s real hot water demand
  • Local team familiar with North Bay homes and plumbing systems

Signs Your Tankless Water Heater Needs Service

  • Hot water runs out sooner than expected
  • Water temperature changes during a shower
  • The unit displays an error code
  • Reduced hot water flow at fixtures
  • The system struggles during cold-weather mornings
  • You hear unusual noises from the unit
  • The water heater has not been professionally flushed in several years
  • You’re adding a bathroom or increasing household hot water demand

Frequently Asked Questions

What are the benefits of switching to tankless?

Lower monthly energy bills, more space saved due to the compact design, and endless hot water.

How long does a tankless water heater last?

Up to 20+ years compared to 10-15 years that a tank water heater will last.

Why does my tankless water heater lose hot water during winter?

Cold incoming water temperatures can increase the workload on the system. An undersized unit, mineral buildup, or maintenance issues can also affect performance.

What tankless brands do you service?

We have been a trusted Rinnai tankless dealer since 1999.

Can my existing gas line handle a tankless water heater?

It depends. Tankless water heater require a larger fuel supply than a traditional water heater, so it is likely you will need a bigger gas line to accommodate.

Can a tankless water heater be installed outside?

Yes! There are many models of tankless water heaters that are capable of being installed outside of the home to save even more space inside.

Are tankless water heaters good for homes with multiple bathrooms?

Absolutely. You will need to consult with a plumbing professional to make sure you get a properly-sized tankless system that can support your household’s hot water demands.

Tankless vs heat pump water heater: which is better?

Both are fantastic energy-efficient alternatives to gas tank water heaters, but which choice that is best for your home depends on the size of your house and you and your family’s specific hot water needs.

Does a tankless water heater really provide unlimited hot water?

It does! Because tankless water heaters heat water on demand rather than having a set amount stored in a tank, they can heat an unlimited amount of hot water. However, running many different hot water appliances at once will require a larger-sized system to keep up.

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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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