Do you come out to Alameda from San Ramon, and how long does it take

Yes. We are based in San Ramon and Alameda is a regular run for us. We usually route through Oakland or San Leandro, both neighbors of Alameda, so the drive is straightforward and we schedule you a real arrival window, not an all-day wait.

My Navien is in a tight closet. Can you still descale it

Usually yes. If the original installer put in isolation service valves, descaling is quick. If they did not, which is common in Alameda's smaller homes, I can add valves at the same visit so future flushes take an hour, not a half day.

Does the salt air shorten the life of my tankless unit

It mainly attacks the exterior vent terminations and any exposed fittings, not the heat exchanger inside. I check and replace corroded termination hardware so the unit keeps venting cleanly. The internal parts last as long as the descaling is kept up.

NAVIEN · ALAMEDA

Service · All Navien Models

Navien Tankless Water Heater Service · Alameda, CA

Navien tankless service in Alameda, from the Victorians off Park Street to the Bay Farm townhomes

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

Call (925) 999-4095

Navien in Alameda

Navien heating and cooling in Alameda.

Alameda is an island, and that shows up in the water heaters I service here. The bungalows and Victorians near Park Street and Central often have a tankless unit crammed into a converted closet or a narrow side yard, and the venting runs short because there was nowhere else to put it. Salt air off the estuary also goes to work on the exterior vent terminations faster than it does inland.

Navien condensing units like the NPE-A2 and NPE-S2 are a good fit for these smaller lots when the install is done right. The efficiency comes from sizing the gas line, the intake and exhaust, and the condensate drain to the unit, and that is exactly what a lot of the older Alameda installs got wrong. I see undersized half-inch gas lines feeding a unit that wants three-quarter.

We run HVAC and water heater work through our division, Bay Area HVAC Service. I am EPA Section 608 Universal certified and we hold CSLB #1136642. The $75 diagnostic is waived when you move forward with the repair, you get a written quote before any work starts, and we are out 7 days a week.

Common repairs we do

What we close on the truck.

E110 exhaust fault from salt-corroded vent terminations. The marine air on the island eats at the PVC vent screens and termination caps. Debris and corrosion block airflow, the unit throws an E110 or E109, and it stops firing. I clear or replace the termination and confirm the intake and exhaust lengths are within Navien spec.
Scale on the heat exchanger from hard water and no descaling. Most Alameda Navien units I open have never been flushed. Hard water lays down scale on the stainless heat exchanger, you lose flow and temperature, and eventually you get an E003 ignition or temperature fault. I descale with a pump and isolation valves and check whether the prior install even left service valves to do it.
Condensate drain clog backing up the unit. Condensing Navien units make acidic condensate, and in tight Alameda closets the drain often runs uphill or into a trap that clogs. Water backs into the unit and trips a fault. I reroute the drain with proper fall and add a neutralizer where the discharge needs it.

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 Alameda questions, answered.

Do you come out to Alameda from San Ramon, and how long does it take

Yes. We are based in San Ramon and Alameda is a regular run for us. We usually route through Oakland or San Leandro, both neighbors of Alameda, so the drive is straightforward and we schedule you a real arrival window, not an all-day wait.
My Navien is in a tight closet. Can you still descale it

Usually yes. If the original installer put in isolation service valves, descaling is quick. If they did not, which is common in Alameda's smaller homes, I can add valves at the same visit so future flushes take an hour, not a half day.
Does the salt air shorten the life of my tankless unit

It mainly attacks the exterior vent terminations and any exposed fittings, not the heat exchanger inside. I check and replace corroded termination hardware so the unit keeps venting cleanly. The internal parts last as long as the descaling is kept up.

Need Navien service in Alameda?

Tell us what is broken. We will quote it.

Call (925) 999-4095