NAVIEN · PLEASANT HILL
Service · All Navien ModelsNavien Tankless Water Heater Service · Pleasant Hill, CA
Navien tankless service in Pleasant Hill, for the post-war ranch tracts around Gregory Gardens and the Poet's Corner neighborhoods
- $75 diagnostic (waived with repair)
- Same or next-day best effort
- CSLB #1136642
Navien in Pleasant Hill
Navien heating and cooling in Pleasant Hill.
Pleasant Hill is largely 1950s and 60s single-story ranch homes on flat lots, with some newer condos near the BART station and downtown. These ranch homes mostly had a tank heater in the garage or a hall closet, and the tankless conversions put a Navien on the garage wall with a sidewall vent. The conversions are usually straightforward, but the old gas line and missing condensate plan are where I find trouble.
We service Navien condensing tankless across Pleasant Hill. This is inland Diablo Valley, so summers run hot and the units see hard water year round. Most of my Pleasant Hill calls are annual descaling, condensate cleanup, and gas line corrections from fast conversions.
ADRIUM checks gas sizing and condensate routing before chasing codes. On a Pleasant Hill garage conversion the most common real fault is the old half inch gas line plus a condensate line that was never properly drained, and both are fixable without replacing good parts.
Common repairs we do
What we close on the truck.
- Garage conversion gas line undersized. Ranch-home conversions in Pleasant Hill often kept the original tank-era gas line, which cannot feed a 199,000 BTU Navien under full fire. The unit starves and faults. I measure dynamic gas pressure at the unit and upsize the branch so it gets full input.
- Condensate drain dumping to nowhere. Lots of these conversions left the acidic condensate draining onto the garage slab or into a clogged spot, and it backs up into the unit. I run the condensate properly with slope and a neutralizer where needed, so it drains clean and does not trip the sensor.
- Annual scale buildup in hard inland water. Pleasant Hill water scales the exchanger and you see longer waits and a hunting temperature. I descale with a pump and solution once a year and add isolation valves if the conversion skipped them, so each flush is fast.
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
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FAQ
Navien in Pleasant Hill questions, answered.
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Is Pleasant Hill an easy drive for you from San Ramon
Very. From San Ramon I run up 680 through Walnut Creek and Pleasant Hill is right there, usually around twenty to twenty-five minutes. Same county, no travel fee, diagnostic waived with the repair. -
My garage tankless faults under heavy use, what causes that
On a Pleasant Hill garage conversion that is usually the old gas line not delivering full input. I measure pressure at the unit under full fire to confirm, then quote the line correction in writing before any work. -
Do I need yearly descaling out here
Yes, the inland water is hard enough that once a year keeps the heat exchanger healthy in Pleasant Hill. If you have a working softener I check the output and may tell you that you can wait a bit longer.
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