Same-day furnace repair, installation, and maintenance for Novato homes — from Bel Marin Keys to Hamilton Field and Indian Valley.
Novato winters are deceptive: bright afternoons, then overnight lows that slide into the high 30s while damp coastal fog rolls in off the bay. That daily swing — plus the salt air around Bel Marin Keys and Black Point — quietly corrodes heat exchangers, fouls flame sensors, and wears out igniters, which is exactly why a furnace that ran fine in October dies on the first cold night. John Owens Services keeps Novato families warm with fast diagnostics, honest repairs, and right-sized new systems.
We offer same-day furnace repair across Novato — Bel Marin Keys, Hamilton Field, Ignacio, Indian Valley, and Black Point — so you’re not stuck in a cold house overnight. As a licensed contractor (CA #501853), we arrive ready to diagnose and fix most issues on the first visit.
We start with a proper load calculation sized to your home and Novato’s long winter heating season, then recommend a furnace that fits your space and budget — whether you’re replacing an aging gravity unit or upgrading a mid-century Ignacio system. Every install is permitted and done to code by our licensed team (CA #501853).
Once a year, ideally in early fall before the cold sets in. Novato’s damp, salty coastal air accelerates corrosion and sensor fouling, so annual maintenance catches worn igniters, dirty flame sensors, and early heat-exchanger issues before they leave you without heat.
It depends on age, efficiency, and the heat exchanger’s condition. We give you an honest assessment on-site: if a straightforward repair will safely get you several more seasons, we’ll tell you — and if replacement makes more sense for safety and your PG&E bill, we’ll show you exactly why.
From the Marin coast to Sonoma wine country, we bring honest plumbing, heating & cooling to homeowners across both counties — based locally since 1986.