Mon–Fri 8:00AM – 5:30PM

Boiler & Radiant Heating Services in Kentfield, CA

Expert boiler repair, service, and installation for Kentfield's radiant-heated homes, from Kent Woodlands estates to Ross Valley flats.

Licensed & InsuredProfessionals
Quality WorkGuaranteed
Local ExpertsSince 1986
Fast & ReliableService

Many Kentfield homes — especially the custom and mid-century houses tucked under the redwoods of Kent Woodlands — were built around hydronic radiant heat, with hot-water tubing run through the slab and a boiler quietly doing the work in the garage or basement. Decades of shade from Mt. Tamalpais's tree canopy keep these homes cool and damp, so when an aging cast-iron boiler short-cycles or a zone goes cold, the whole house feels it fast. John Owens Services has kept Marin's radiant systems running since 1986, and we know how Kentfield's older boilers and in-floor loops actually behave.

Why Kentfield Homeowners Choose John Owens

  • We've serviced the original 1960s and '70s cast-iron boilers common in Kent Woodlands and Greenbrae-side Kentfield homes — we know their quirks before we open the panel
  • Radiant and hydronics are a core specialty, not a sideline: zone valves, circulator pumps, expansion tanks, mixing valves, and slab loops are everyday work for our techs
  • Same-day service matters when a boiler dies on a damp, tree-shaded lot where the house never warms on its own — we keep trucks stocked to fix it on the first visit
  • Licensed California contractor #501853, fully insured, with a 4.9-star Google rating and happy customers from Marin and Sonoma homeowners
  • We give straight repair-vs-replace advice — an old boiler can often run another season, and we'll tell you honestly when high-efficiency replacement actually pays off
  • Family-run and local since 1986; we navigate Kentfield's set-back hillside driveways and tight mechanical rooms without drama

Signs You Need Boiler & Radiant Heating in Kentfield

  • Some rooms or whole zones stay cold while others heat — common as zone valves and circulators wear out on older Kentfield systems
  • The boiler short-cycles, rumbles, or makes banging (kettling) noises, often a sign of sediment or scale after decades of service
  • Rising heating bills or a boiler that runs constantly to keep a shaded, redwood-canopy home comfortable
  • Visible leaks, rust, or moisture around the boiler, pump, or expansion tank — small drips in a radiant system get expensive fast
  • No heat at all, or a pilot/ignition that won't stay lit on a cold Ross Valley morning

Frequently Asked Questions

Do you offer same-day boiler repair in Kentfield?

Yes. We keep our trucks stocked for radiant and boiler work and offer same-day service across Kentfield and the Ross Valley so a tree-shaded home isn't left cold. We're licensed (CA #501853) and fully insured.

My Kentfield home has an old cast-iron boiler — is it worth repairing or should I replace it?

Often the original boiler can run another season with the right repair, and we'll tell you honestly. When a high-efficiency boiler installation genuinely lowers your bills and improves comfort, we'll lay out the numbers so you can decide.

Can you work on radiant heating in Kent Woodlands estate and mid-century homes?

Absolutely. In-slab hydronic radiant, zone valves, circulator pumps, and mixing valves are an everyday specialty for us, including the custom and Eichler-era systems common throughout Kentfield.

Do you handle full boiler installation, not just repair?

Yes. We size and install replacement boilers matched to your home's radiant loops and square footage, and we've done it across Marin since 1986 — proper sizing is what keeps a Kentfield system efficient and quiet.

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