NAVIEN · PORTOLA VALLEY
Service · All Navien ModelsNavien Tankless Water Heater Service · Portola Valley, CA
Navien tankless and combi service in Portola Valley, for homes on well water off Alpine and Portola Road
- $99 diagnostic (waived with repair)
- Same or next-day best effort
- CSLB #1136642
Navien in Portola Valley
Navien heating and cooling in Portola Valley.
Portola Valley sits in oak-and-redwood hills off Alpine Road and Portola Road, a wildfire-aware town where large custom homes sit on wooded acreage, mid-century modern houses cluster in the Ladera-adjacent pockets, and ranch properties stretch out toward Skyline. A good share of the outer roads run on septic and well rather than municipal service, which changes what a tankless unit is actually fighting day to day.
I service Navien tankless and combi units through town, a cascade or a single larger unit on a ranch property toward Skyline, a combi feeding both hot water and the hydronic zones in one of the Ladera-adjacent mid-century homes. Well water runs different mineral content than the municipal supply on the valley floor, and I see it in how fast a sediment filter loads and how quickly a heat exchanger picks up iron.
The other thing that matters here is PG&E's public-safety power shutoffs. A Navien unit needs power to ignite and to run its recirc pump, so on a red-flag day with the grid down, the household goes cold along with everyone else unless there's a plan for it. We service through Bay Area HVAC Service, EPA 608 Universal certified, CSLB #1136642. Diagnostic is $99, waived when you approve the repair, quote in writing before anything is opened up, with a 7-day turnaround on the work itself.
Common repairs we do
What we close on the truck.
- Sediment and iron fouling on well-fed units. Well water on the outer roads carries more sediment and dissolved iron than the municipal line running through the valley floor. The inlet filter loads fast and the heat exchanger picks up iron scale years before a municipal-fed unit would. I check the filter, descale the exchanger, and set a filter change interval that matches the water you actually have.
- Ignition lockouts after a PG&E shutoff. A shutoff kills the unit outright, and depending on how the electrical came back up, the control board can come back in a fault state instead of just resuming. I clear the lockout, check the ignition sequence, and if the household runs a generator or a battery system, I confirm the unit is on a circuit that keeps it fed the way it needs during an outage.
- Long recirculation runs on wooded acreage. A custom home on several acres toward Skyline or back off Alpine Road often has a hot water run long enough that the far bathroom or kitchen waits without a working recirc loop. I diagnose the pump and the return line and tune the recirc so the far end of the house doesn't wait on every draw.
Models we service
Navien product lines.
- Condensing tankless water heaters (NPE and KD series)
- Combi-boilers (heat plus domestic hot water)
- Condensing gas boilers for hydronic heat
- Recirculation and ComfortFlow systems
- Stainless heat exchangers and venting
Pricing and warranty
What it costs. What we stand behind.
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$99
Diagnostic visit. Waived when you book the repair with us.
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Written
3 months standard, 1 year on inverter boards, up to 2 years on sealed-system rebuilds. Quoted in writing before work starts.
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CSLB
#1136642. Bonded and insured. We file warranty paperwork when applicable.
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FAQ
Navien in Portola Valley questions, answered.
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How long is the drive to Portola Valley from San Ramon
About 50 to 60 minutes, down 680 south and over on 280. Portola Valley gets grouped with Hillsborough and Woodside on the same Peninsula day, so you get a firm written arrival window, and I confirm the gate code or any access notes before I leave the shop. -
We're on well water, does that change how the Navien needs to be maintained
Yes. Well water tends to load a sediment filter faster and bring more dissolved iron than the municipal supply, so I set the filter and descale interval to the water you actually have rather than a generic schedule, and check the exchanger for iron scale at each visit. -
We lose power during PG&E shutoffs. Does that damage the unit or just shut it off
Usually it just shuts off and comes back once power is restored, but sometimes the control board comes back in a lockout state that needs to be cleared by hand. If the property runs backup power, I check that the tankless unit and its recirc pump are wired to a circuit the backup actually covers.
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