How long is the drive to Oakland from your San Ramon base

From San Ramon I run 24 through the Caldecott into Oakland, and depending on whether it is the flats or up by Piedmont it is usually around thirty to forty minutes. We cover all of Oakland, no travel surcharge.

Can a Navien go in my old Victorian basement

Usually yes, but the venting and condensate need real planning in an old basement. I look at the drain situation, the gas piping, and the vent path first, then tell you what it actually takes. No guessing on a hundred-year-old house.

My tankless was added during a remodel and never worked right, can you fix it

Often the remodel install missed gas sizing or vent clearances. That is a common Oakland story. I diagnose what the original installer got wrong and give you a written quote to correct it, not just a parts swap.

NAVIEN · OAKLAND

Service · All Navien Models

Navien Tankless Water Heater Service · Oakland, CA

Navien tankless service in Oakland, from the Victorian flats in the lower neighborhoods to the hillside homes up toward Montclair

$75 diagnostic (waived with repair)
Same or next-day best effort
CSLB #1136642

Call (925) 999-4095

Navien in Oakland

Navien heating and cooling in Oakland.

Oakland has some of the oldest housing stock we work in, from 1900s Victorians and Craftsman bungalows in the flats to mid-century and custom homes up in the hills. The old homes often have a tankless added during a kitchen or bath remodel, and fitting a Navien into a basement or a narrow side-yard means the venting and condensate routing have to be planned, not improvised.

We service Navien NPE and NPN condensing tankless across Oakland. Hill homes deal with longer gas runs and tighter access, while flat-land Victorians often have knob-and-tube era construction where the gas piping was patched many times. Both situations change how I diagnose a low-output or fault-code complaint.

ADRIUM looks at the whole picture, gas supply, vent path, condensate, and water hardness, before quoting. In an old Oakland house the simplest answer is rarely a part. It is usually something about how the unit was fit into a building that was never designed for it.

Common repairs we do

What we close on the truck.

Condensate routing in a basement install. Hillside and Victorian Oakland homes often put the Navien in a basement with no nearby drain. The acidic condensate gets routed poorly or pumped wrong, then backs up and faults the unit. I install a proper condensate pump and neutralizer and run the line to a real drain so it stops backing up.
Long gas run pressure loss in the hills. Up in the Oakland hills the meter can be far from the unit. A long undersized run drops pressure under full fire and the Navien throws flame-loss errors. I measure pressure at the unit and correct the line where it is short rather than swapping good parts.
Scale and sediment from old galvanized plumbing. Old Oakland homes still have stretches of galvanized pipe that shed sediment, and our water is hard on top of that. The exchanger and inlet filter clog. I clean the inlet screen, descale the exchanger, and add isolation valves so future service is simple.

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.

Recent work

Navien jobs we have closed.

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Nearby cities

Navien service in neighboring cities.

FAQ

Navien in Oakland questions, answered.

How long is the drive to Oakland from your San Ramon base

From San Ramon I run 24 through the Caldecott into Oakland, and depending on whether it is the flats or up by Piedmont it is usually around thirty to forty minutes. We cover all of Oakland, no travel surcharge.
Can a Navien go in my old Victorian basement

Usually yes, but the venting and condensate need real planning in an old basement. I look at the drain situation, the gas piping, and the vent path first, then tell you what it actually takes. No guessing on a hundred-year-old house.
My tankless was added during a remodel and never worked right, can you fix it

Often the remodel install missed gas sizing or vent clearances. That is a common Oakland story. I diagnose what the original installer got wrong and give you a written quote to correct it, not just a parts swap.

Need Navien service in Oakland?

Tell us what is broken. We will quote it.

Call (925) 999-4095