Furnace repair, replacement, and installation across Marin and Sonoma County — same-day service from a licensed local crew since 1986.
From the foggy hillsides of Mill Valley and Fairfax to the tule-fog valley mornings in Santa Rosa, Petaluma, and Sonoma, the first real cold snap of the year is when North Bay furnaces quit — usually on their first burn after sitting idle all summer. John Owens Services has been answering those no-heat calls since 1986, and we know the local housing stock cold: gravity wall and floor furnaces in pre-1960 Victorians and bungalows, mid-century forced-air closets in Eichlers and ranch homes, and the newer condensing systems going into Coffey Park and Fountaingrove rebuilds. Whether your furnace needs a same-day repair or it's time for a full replacement, we diagnose the real problem before quoting the work.
Yes. Our vans are stocked locally, so we complete most furnace repairs on the first visit, with same-day response across both counties whenever our schedule allows — and we handle emergency no-heat calls when the cold can't wait.
If your furnace is under about 15 years old and the fix is a single component, repair is almost always the better call. Once a system is older and a repair approaches half the cost of replacement — or the heat exchanger is cracked — we'll walk you through both options before any work begins.
It depends on the system type, your home's size, and ductwork condition, so we give a firm quote after a Manual J load calculation rather than a phone guess. Every replacement is installed to California code and properly permitted, and we'll flag any rebates you qualify for.
Yes — John Owens Services is fully licensed (CA #501853) and insured for furnace repair, installation, and replacement, and we've served Marin and Sonoma homeowners since 1986.
From the Marin coast to Sonoma wine country, we bring honest plumbing, heating & cooling to homeowners across both counties — based locally since 1986.