NAVIEN · SAN JOSE
Service · All Navien ModelsNavien Tankless Water Heater Service · San Jose, CA
Navien tankless service in San Jose, from the Naglee Park bungalows to the sprawling newer tracts in Evergreen and Almaden
- $75 diagnostic (waived with repair)
- Same or next-day best effort
- CSLB #1136642
Navien in San Jose
Navien heating and cooling in San Jose.
San Jose covers an enormous range, from 1920s bungalows in Naglee Park and Willow Glen to vast 1980s through 2000s tracts in Evergreen, Almaden, and Berryessa, plus newer downtown towers. The tract homes commonly run a builder Navien feeding a two-story house, and the older bungalows are retrofits with tighter venting. The water is hard across all of it.
We service Navien condensing tankless throughout San Jose. With this much housing variety, the diagnosis changes by neighborhood, a long recirculation run in an Almaden two-story behaves nothing like a tight closet install in a Willow Glen bungalow. The common thread is annual descaling on hard South Bay water.
ADRIUM checks gas, vent, condensate, and recirculation against the actual house. In San Jose I see a lot of builder installs where the recirculation runs too hard or the condensate was never drained right, and both wear or fault the unit before its time.
Common repairs we do
What we close on the truck.
- Recirculation overrun on two-story tract homes. Evergreen and Almaden two-story homes often have recirculation set to run nearly constantly, firing the Navien far more than needed and wearing the fan and igniter. I set a sensible schedule and check the crossover so the unit cycles properly and the parts last.
- Condensate backing up from a flat drain run. Builder installs across San Jose frequently ran the acidic condensate too flat or to a clogging spot, and it backs into the unit and faults the sensor. I re-run the drain with slope and add a neutralizer where needed so it stays clear.
- Heat exchanger scale on hard water. Hard South Bay water scales the exchanger and the tap temperature hunts and the wait gets longer. I descale annually with a pump and solution and verify flow and mixing after, adding isolation valves where the builder left them off.
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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$75
Diagnostic visit. Waived when you book the repair with us.
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Written
90 days on consumables, 1 year on major parts, 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.
Nearby cities
Navien service in neighboring cities.
More cities
Navien across our service area.
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- Navien in Los Altos
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- Navien in Pleasant Hill
- Navien in Pleasanton
- Navien in Richmond
- Navien in San Leandro
- Navien in San Ramon
- Navien in Santa Clara
- Navien in Union City
- Navien in Walnut Creek
FAQ
Navien in San Jose questions, answered.
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Do you service all of San Jose from San Ramon
We do, from downtown out to Evergreen, Almaden, and Berryessa. From San Ramon it is 680 down through Fremont and Milpitas into San Jose. It is a longer run than our Tri-Valley work but there is no travel surcharge. -
My two-story home's Navien wears out parts quickly, why
Usually the builder recirculation is set to run almost nonstop, firing the unit far more than necessary. That wears the fan and igniter early. I retune the recirculation schedule so the unit runs proper cycles and the parts last. -
How often should I descale my Navien in San Jose
Once a year for most San Jose homes, since the water is hard across the valley. With a working softener I check the output and may tell you that you can stretch the interval. I give you a straight answer based on what I find inside.
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