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Boiler Installation By John Owens Services
Boiler installation John Owens Services
Boilers & radiant heating

Gas Boiler Repair & Installation in Novato, CA

Boiler installation, replacement and venting plans for Novato homes, with free replacement estimates.

Licensed & InsuredProfessionals
Quality WorkGuaranteed
Local ExpertsSince 1986
Fast & ReliableService

Boiler installation in Novato is mostly planning. Before we choose a unit, we look at where the old boiler sits, how it vents, where the condensate drains, how the gas and water connect and what heat emitters it feeds. Getting those details right is what makes a new boiler quiet, efficient and easy to service. Bring photos of the boiler and its surroundings if you can.

That is the heart of boiler replacement in Novato. A high efficiency boiler installation may need a different vent route or a condensate drain, and the radiators, baseboards or radiant floors must work at the water temperature the new boiler runs. We cover all of it in a free estimate, in plain language.

Repair and upkeep matter too. We handle boiler repair and boiler maintenance for NTI, Lochinvar, Navien, Rinnai and other makes, and we will tell you if the unit you have is worth keeping. Novato is served from our San Rafael office at 710 C St. Senior and veteran discounts and financing are available.

A replacement plan before any work starts

We settle the vent route, drain, gas, water and controls on paper first, so there are fewer unknowns on install day.

  • Venting and condensate drainage are planned before a boiler is selected.
  • We check that your radiators, baseboards or radiant floors suit the new boiler’s operating temperatures.
  • Free estimates on replacements, with financing available.
  • Senior and veteran install discounts: $250 and $200 off any install.
  • Novato is served from our San Rafael office, and we service NTI, Lochinvar, Navien, Rinnai and six other brands.

When a repair call may turn into replacement planning

  • The boiler has needed several repairs and still shuts down.
  • The boiler is loud, with banging, kettling or whistling sounds.
  • A pilot or ignition fault keeps coming back.
  • Water pools around the boiler, or the pressure keeps falling.
  • Rooms or zones heat unevenly even after the thermostats were checked.
  • A technician has told you parts for your model are hard to find.

Frequently Asked Questions

What goes into boiler replacement in Novato?

We review the old boiler, vent route, gas and water connections, controls and the heat emitters. Then we recommend a unit and explain the scope in a free estimate. If the new boiler needs a different vent or a condensate drain, the estimate says so. Financing is available.

Can you do a high efficiency boiler installation in Novato?

Yes. High efficiency boilers are usually condensing units, so they need a proper condensate drain and the right vent material and route. We also check your radiators, baseboards or floor loops and the controls. The goal is a boiler that fits your system, not just one that fits the space.

Do you repair NTI and Lochinvar boilers in Novato?

Yes. We repair and maintain NTI and Lochinvar boilers, as well as Navien, Rinnai, Triangle Tube, HTP, U.S. Boiler, Crown, Peerless and Laars. Send the model and serial number when you book. Parts availability depends on the model, and we tell you honestly if replacement is the better route.

How often should I schedule boiler maintenance in Novato?

Once a year is the usual rule, ideally before the heating season. We check the boiler, controls, circulators, venting and pressure, and we note anything that looks worn. A yearly visit also gives us a chance to flag early whether replacement planning should start.

Why does my boiler keep shutting down?

Common causes are low water pressure, a failed ignition or flame sensor, a blocked vent or condensate drain, or a control fault. A boiler that shuts down repeatedly needs a diagnosis, not just a reset. Call us with the error code, and tell us if you notice leaks or noises.

Gas boilers & radiant heat

Boiler Manufacturers

Repair, maintenance, and replacement options for the boiler in your home.

Not sure which model you have?Have the brand, model, and serial number ready when you book. Options depend on condition and parts availability.

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