How long is the drive to San Leandro from San Ramon

From San Ramon I take 580 down through Castro Valley into San Leandro, usually around twenty-five to thirty minutes. We cover the whole city including the Bay-O-Vista hill homes. No travel charge.

My tankless is in a small closet and keeps shutting off, is it safe

It may be starving for combustion air, which is worth taking seriously in a tight San Leandro closet. I check whether your Navien is sealed direct-vent or pulling room air and make sure it vents safely before quoting the repair.

Do I really need yearly descaling here

Yes, the water is hard enough in San Leandro that an annual flush keeps the heat exchanger healthy. With a working softener I check the output and may tell you that you can wait a little longer. You get an honest call based on what I find.

NAVIEN · SAN LEANDRO

Service · All Navien Models

Navien Tankless Water Heater Service · San Leandro, CA

Navien tankless service in San Leandro, for the 1940s and 50s bungalow tracts around Estudillo and the Bay-O-Vista hill homes

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

Call (925) 999-4095

Navien in San Leandro

Navien heating and cooling in San Leandro.

San Leandro is mostly tight 1940s and 50s bungalows and ranch homes on small flat lots, with hillside houses up in Bay-O-Vista. The flat-land homes usually had a tank heater in a small hall closet or the garage, and the tankless conversions fit a Navien into snug spaces where combustion air and venting have to be handled carefully. The bay air here is damp.

We service Navien condensing tankless across San Leandro. The small footprints mean closet installs that can starve for combustion air if they are not sealed direct-vent, and the damp bay air wears outdoor terminations. Hard water scales the exchanger inside on the usual annual cycle.

ADRIUM checks that a closet-installed Navien is venting safely and getting air before chasing intermittent shutdowns. In a tight San Leandro bungalow the combustion air problem is a common real cause behind ignition faults that get blamed on the gas valve.

Common repairs we do

What we close on the truck.

Combustion air starvation in a tight closet. Small San Leandro homes put the tankless in a cramped closet. A non-direct-vent unit then runs short of air and short-cycles or throws ignition faults. I convert it to sealed direct-vent intake from outside or open the combustion air path so the burner gets enough air.
Weathered sidewall termination in damp bay air. The humid bay air corrodes outdoor termination screens and fittings, restricting the vent and faulting the unit. I replace the termination kit and reseal the wall penetration so it vents clean and stays dry inside.
Annual hard-water scale. Hard water scales the exchanger and you get slow hot water and a hunting temperature. I descale once a year with a pump and solution and verify flow and mixing after, adding isolation valves if the conversion skipped them.

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 San Leandro questions, answered.

How long is the drive to San Leandro from San Ramon

From San Ramon I take 580 down through Castro Valley into San Leandro, usually around twenty-five to thirty minutes. We cover the whole city including the Bay-O-Vista hill homes. No travel charge.
My tankless is in a small closet and keeps shutting off, is it safe

It may be starving for combustion air, which is worth taking seriously in a tight San Leandro closet. I check whether your Navien is sealed direct-vent or pulling room air and make sure it vents safely before quoting the repair.
Do I really need yearly descaling here

Yes, the water is hard enough in San Leandro that an annual flush keeps the heat exchanger healthy. With a working softener I check the output and may tell you that you can wait a little longer. You get an honest call based on what I find.

Need Navien service in San Leandro?

Tell us what is broken. We will quote it.

Call (925) 999-4095