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ADRIUM Service Solutions
(925) 999-4095 · San Ramon, CA · CSLB #1136642 · BBB A+

NAVIEN · LOS ALTOS HILLS

Service · All Navien Models

Navien Tankless Water Heater Service · Los Altos Hills, CA

Navien tankless service in Los Altos Hills, for the acreage estates along the winding hill roads

  • $75 diagnostic (waived with repair)
  • Same or next-day best effort
  • CSLB #1136642
Call (925) 999-4095

Navien in Los Altos Hills

Navien heating and cooling in Los Altos Hills.

Los Altos Hills is large homes on full acre lots, set along winding roads with no sidewalks and plenty of trees. These properties have high, spread-out hot water demand, often with a main house, a guest house, and a pool, and the long pipe runs almost always call for recirculation. One tankless rarely serves a property this size alone.

I service Navien condensing units across the Hills. The work here is keeping cascade systems and long recirculation loops running, and catching the details a remodel install missed on a property where everything is far apart. The Navien efficiency depends on the gas main, the venting, and the condensate being sized for the real load.

Los Altos Hills is Mid-Peninsula with a mild climate, but the water still scales a heat exchanger. We service through Bay Area HVAC Service. EPA 608 Universal certified, CSLB #1136642, $75 diagnostic waived with repair, written quotes, 7 days.

Common repairs we do

What we close on the truck.

  • Cascade lead-lag faults on multi-unit systems. Many Los Altos Hills estates run two or more Navien units. The cascade cable or the lead-lag setting drops and only one fires, halving capacity. I check the cascade wiring, the addressing, and the rotation so both units carry their share.
  • Long recirculation loop failures. Hot water runs far to guest houses and distant wings. The recirculation pump or the return loop fails and the far fixtures wait minutes. I diagnose the pump, the aquastat, and the loop and tune the Navien recirc to the household.
  • Scale on neglected estate units. Even in the mild climate, the water scales the exchanger. The far end of the property goes lukewarm first. I descale every unit and confirm the bypass valves exist so maintenance does not require shutting the whole estate down.

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.

  • $75

    Diagnostic visit. Waived when you book the repair with us.

  • Written

    90 days on consumables, 1 year on major parts, 2 years on sealed-system rebuilds. Quoted in writing before work starts.

  • CSLB

    #1136642. Bonded and insured. We file warranty paperwork when applicable.

Nearby cities

Navien service in neighboring cities.

FAQ

Navien in Los Altos Hills questions, answered.

  • How long is the drive to Los Altos Hills from San Ramon
    It is one of our farther runs, on the Mid-Peninsula. We cross the bay and often combine it with work near its neighbors Palo Alto or Los Altos to keep the trip efficient. We confirm a firm arrival window and the technician name for gate access.
  • Our property has more than one tankless. Do you service those
    Yes. Cascade systems are common on the acreage estates here and we work on them regularly. I check the lead-lag communication and rotation so both units share runtime evenly.
  • Can you coordinate with our estate manager
    Yes. Many Los Altos Hills properties have a manager and gated access. We schedule ahead, send the technician name, and provide a written quote so the manager can approve work before we start.

Need Navien service in Los Altos Hills?

Tell us what is broken. We will quote it.

Call (925) 999-4095
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Andrew will call you back during business hours to confirm the visit.