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Tankless water heaters · Sonoma County
Tankless water heaters — endless hot water, done right
No tank, no standby loss, no running out mid-shower. A wall-hung unit heats water the moment you open a tap — installed, repaired, and descaled by the Santa Rosa family shop that’s done it across Sonoma County since 2007.
consultation
Four reasons Sonoma County homes make the switch
The honest case — and the honest caveats are right below it.
Two things decide whether tankless is right for your house
We’d rather tell you up front than mid-quote. If your usage is light or you’re moving soon, a quality tank can be the smarter buy — and we’ll say so.
Your gas line
Most tankless units need a larger gas line than your old tank used — 150,000+ BTU on demand is real draw. If the line needs upsizing from the meter, that’s real pipe work, and it’s the single biggest reason quotes differ between homes. It’s itemized in every written quote we give.
Our hard water
Sonoma County’s mineral-heavy water scales up heat exchangers — it’s the #1 tankless killer here. An annual descaling flush handles it, and pairing the unit with a softener or conditioner means it basically stops wearing out.
Installed right, priced in writing
We install Navien condensing tankless units — sized to your home’s actual demand, with isolation valves for easy service, proper venting and condensate, permit pulled and inspection handled. Straight swaps run around $4,000; new installs $5,500–$6,500 — and we published the full honest breakdown.
Already have a tankless that’s acting up?
Error codes, lukewarm water, and low flow are usually scale, a sensor, or an ignition part — not a dead unit. Our $225 tankless diagnostic tells you exactly what’s going on; if the fix makes sense we quote it on the spot. Annual maintenance (descaling flush + service kit) protects the heat exchanger and keeps the manufacturer’s warranty valid. We service the major brands, including units we didn’t install.
Tankless vs. heat pump — the other modern option
If you’re weighing gas tankless against an electric heat pump water heater — the type the 2026 rebates favor — our honest comparison breaks down which fits which home.
Tankless water heater FAQs
How long does a tankless water heater last?+
15–20+ years with annual maintenance — roughly double a storage tank. In Sonoma County’s hard water, the annual descaling flush is what gets you there.
How often does it need maintenance?+
Once a year: a descaling flush and a check of the filter, venting, and condensate. Skipping it in our water shortens the heat exchanger’s life and can void the warranty.
Can one unit really handle my whole house?+
Sized correctly, yes. Sizing is about simultaneous use — how many showers, taps, and appliances run at once. That’s part of every estimate we do; an undersized unit is the #1 cause of tankless complaints.
What about electric tankless?+
Whole-house electric tankless needs more amperage than most Sonoma County panels have to spare. For point-of-use (a far bathroom, a shop sink) they’re great; for whole-house electric, a heat pump water heater is usually the better play.
Do you service tankless units you didn’t install?+
Yes — diagnosis, descaling, repairs, and warranty-era parts on the major brands. Start with the $225 diagnostic.
Ready for endless hot water?
Upfront pricing in writing, convenient scheduling, and our 100% satisfaction guarantee.