Mon–Fri 7:30AM – 5:30PM

Boiler & Radiant Heating Services in Mill Valley, CA

Expert boiler repair, installation, and radiant heating for Mill Valley homes — from Old Mill cottages to hillside Homestead Valley.

Licensed & InsuredProfessionals
Quality WorkGuaranteed
Local ExpertsSince 1986
Fast & ReliableService

Why Mill Valley Homeowners Choose John Owens

  • Family-run and California-licensed since 1986 (CSLB #501853) — over 900 five-star Google reviews from Marin homeowners who call us back
  • Deep experience with Mill Valley’s older hydronic boilers and cast-iron radiators common in Old Mill, Sycamore Park, and downtown-area homes built before central forced air was standard
  • Same-day service when your boiler quits on a cold, foggy morning — no heat in a redwood canyon is no small thing
  • We size and install high-efficiency boilers and radiant floor systems correctly for your home’s layout, not a one-size-fits-all swap
  • Honest, upfront diagnosis — we’ll tell you when a repair makes sense and when a 30-year-old unit is past saving
  • Local crews who navigate Mill Valley’s narrow hillside streets and tight mechanical rooms every week

Signs You Need Boiler & Radiant Heating in Mill Valley

  • No heat or uneven heat — cold rooms while others stay warm often points to circulator pump, zone valve, or air-locked lines
  • Banging, gurgling, or rumbling (kettling) from the boiler, a classic sign of sediment buildup in older Mill Valley units
  • Visible leaks, rust, or water pooling around the boiler base or radiator connections
  • Pilot light or burner won’t stay lit, or the system short-cycles on and off
  • Heating bills creeping up — an aging boiler running below 70% efficiency costs far more than a modern condensing unit

Frequently Asked Questions

How fast can you do boiler repair in Mill Valley?

We offer same-day boiler repair throughout Mill Valley whenever scheduling allows — including downtown, Homestead Valley, and the canyon neighborhoods. As a licensed contractor (CSLB #501853), we diagnose the real fault before quoting any work.

Is radiant heating a good fit for Mill Valley homes?

Yes — radiant floor heating delivers quiet, even warmth that suits Mill Valley’s cool, foggy microclimate and works beautifully in both older remodels and new builds. We design each system around your home’s flooring and layout for efficient, draft-free comfort.

When should I consider boiler installation instead of another repair?

If your Mill Valley boiler is over 15–20 years old, leaking, or needing frequent fixes, a new high-efficiency boiler installation usually pays off in lower bills and reliable heat. We’ll give you an honest side-by-side so you can decide with real numbers.

Do you service the older radiators and hydronic systems in Old Mill and downtown homes?

Absolutely. Many Mill Valley homes still run cast-iron radiators and hydronic loops, and we repair, rebalance, and upgrade these systems regularly while keeping their original comfort and character intact.

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