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

Gas Boiler & Radiant Heating Repair in San Rafael, CA

Boiler repair, maintenance and radiant heat service in San Rafael, from our office at 710 C St, Suite 211.

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Local ExpertsSince 1986
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Boiler service in San Rafael starts at 710 C St, Suite 211, the home of our San Rafael office. It also serves Belvedere, Kentfield, Mill Valley, Novato, San Anselmo, Sausalito and Tiburon. We have been family-owned since 1986, and boiler repair and boiler maintenance are everyday work for us. That includes Lochinvar boiler repair in San Rafael.

We diagnose before we replace. A boiler that will not fire, a hydronic loop that will not circulate and a radiant zone that stays cold can look alike from the living room, but the causes differ. We test the boiler, controls, circulators and valves, explain what we found and price the repair. Replacement comes up only when repair does not make sense.

We also repair radiant heating systems, including in-floor heating that has gone cold. Whether it is a Lochinvar or NTI boiler repair, a Navien service call or a high efficiency boiler installation, tell us the model when you call. Replacements get a free estimate. Financing is available, along with senior and veteran discounts.

Diagnosis first, from the San Rafael office

Our San Rafael office at 710 C St, Suite 211 serves San Rafael and nearby Marin towns, and we find the fault before we talk replacement.

  • We test the boiler, controls, circulators and zone valves before any parts are replaced.
  • Replacement only when repair no longer makes sense, with the reasons explained.
  • Repair estimates explained before work begins, free estimates on replacements, and same-day service when the schedule allows.
  • Licensed and insured California contractor, license #501853, family-owned since 1986.
  • Senior discount of $250 off any install or $50 off any repair. Veteran discount of $200 off any install or $50 off any repair.

San Rafael boiler problems worth a call

  • The boiler runs but the house stays cool.
  • A fault code appears and the boiler locks out.
  • The igniter clicks without lighting, or the boiler turns on and off in short bursts.
  • Baseboards heat at one end of the house but not the other.
  • Puddles or damp spots appear around the boiler or its piping.
  • In-floor heating has gone cold in part of a room.

Frequently Asked Questions

Do you repair Lochinvar and NTI boilers in San Rafael, CA?

Yes. Both are on the list of brands we service, along with Navien, Rinnai, Triangle Tube, HTP, U.S. Boiler, Crown, Peerless and Laars. Our San Rafael office schedules the visit. Bring the model and serial number if you can, and describe any fault code you have seen.

What does boiler maintenance in San Rafael include?

We inspect the boiler and its controls, check for leaks and pressure loss, and look over the circulators, valves and expansion tank. You get a plain report on what is working and what is wearing out. Yearly service before the heating season is the usual schedule.

Should I repair or replace my boiler in San Rafael?

Repair first when the fault is isolated and parts are available. Replacement makes sense when failures keep coming back, parts cannot be found or the heat exchanger has failed. We tell you which case you are in. Replacement estimates are free, and financing is available if you decide to replace.

Can you repair in-floor heating in San Rafael?

Yes. We start with the boiler, pump, zone valves and controls, since a cold floor is often a supply problem rather than a floor problem. If the fault is in the floor loop, we explain the options before work begins. Radiant heating system repair does not always require removing the floor.

What goes into a high efficiency boiler installation in San Rafael?

We check the heating load, the existing radiators, baseboards or radiant floors, the controls and the venting route. High-efficiency boilers use sealed venting and a condensate drain, so the plan covers both. Estimates for replacement are free, and senior and veteran discounts apply.

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