Mon–Fri 7:30AM – 5:30PM

Expert Tankless Water Heater Repair & Installation in Petaluma, CA

Dependable tankless water heaters from factory-trained professionals. Free estimates and same-day service available. Call today!

Licensed & InsuredProfessionals
Quality WorkGuaranteed
Local ExpertsSince 1986
Fast & ReliableService

Why Petaluma Homeowners Choose John Owens Services

Petaluma homes range from older West Side properties to newer East Side neighborhoods, and the plumbing behind the walls can vary just as much. A tankless water heater needs the right gas supply, water flow, venting, electrical connections, and sizing to perform properly. John Owens Services has served Marin & Sonoma County since 1986, and our team evaluates the complete system before recommending the next step.

  • Serving Marin & Sonoma County since 1986
  • Licensed California contractor #501853
  • Tankless installation, repair, flushing, maintenance, and replacement
  • System sizing based on actual household hot water demand
  • Experience with older and newer Petaluma homes
  • Clear diagnosis before repair or replacement recommendations
  • The John Owens Way: maintain first, repair when needed, replace last

Signs Your Tankless Water Heater Needs Service

  • The unit displays an error code
  • Hot water temperature changes unexpectedly
  • Hot water flow is weaker than it used to be
  • The system struggles when several fixtures use hot water at once
  • The unit shuts down or needs frequent resets
  • You hear unusual noises while the system is operating
  • Hot water takes longer to arrive or becomes inconsistent
  • The tankless water heater has not been flushed or maintained recently
  • You are adding bathrooms or fixtures that will increase hot water demand
  • Your existing water heater is aging and you are considering a tankless replacement

Frequently Asked Questions

Are tankless water heaters good for older Petaluma homes?

Tankless water heaters are fantastic energy-efficient improvements for older homes, but the installation requirements may be more extreme, since older structures may need serious upgrades.

Do I need a larger gas line for a tankless water heater in Petaluma?

Tankless systems need a larger gas line than traditional tank water heaters because of their heavier fuel requirements.

What size tankless water heater do I need for my Petaluma home?

The exact size of your tankless water heater will have to be determined by a professional after examining things like the size of your home and your hot water requirements.

Can I install a tankless water heater outside in Petaluma?

Yes! Tankless units that are specifically built to withstand outdoor conditions are a great way to save indoor space.

Tankless vs heat pump water heater: which is better for a Petaluma home?

While both options have their energy-efficient benefits, the right fit will depend on the structure and needs of your home.

How do I know if my tankless water heater has mineral buildup?

If you’re noticing inconsistent temperatures, low water pressure, frequent error codes, or even unusually high water bills, these could be signs of mineral buildup.

Why does my tankless water heater struggle when two showers are running?

This could be because the flow rate of your shower heads exceeds the maximum demand of the unit. It might also be because of scale buildup, colder water coming into the unit during the winter, or an undersized gas line.

Why does my tankless water heater need to be reset?

Most likely because the system found an internal safety issue and shut off. This could be from venting issues, mineral buildup, a gas supply problem, or a power surge.

Why does my tankless water heater go from hot to cold?

Clogged filters, low water flow, or a “cold water sandwich” (hot water ebing turned off for a moment and then back on, sending a burst of cold water through the pipes) are all possible explanations for this occurence.

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.

Ready to Get Started?

Schedule service with our trusted local team today.

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