San Jose Water Heater Specialist
Noritz Tankless Water Heater Installer in San Jose, CA
Updated • By Joseph Castro, Owner • Licensed CSLB #1008381
Certified Noritz tankless installer in San Jose — NRCP-DV condensing recirc, NRCB Combi (space + DHW), NRC-D commercial, and EZ-series drop-in tankless with the industry's 25-year heat exchanger warranty.
- Licensed CSLB #1008381
- Noritz Pro-Installer
- 25-Year Heat Exchanger Warranty
- NRCP-DV Recirculation Certified
- NRCB Combi-Boiler Trained
- 1-Year Labor Warranty
What this service covers
Noritz was one of the first Japanese tankless brands to bring the EZTR-40 drop-in retrofit to the U.S. — 24-inch cabinet width and top-side plumbing so it lands on an existing 40-gal tank pad. Every current Noritz SKU is on our truck for San Jose.
- Noritz NRCP111-DV install with built-in recirculation pump (11.1 GPM, condensing)
- Noritz NRCB Combi install (space heating + DHW combined)
- Noritz EZ98-DV / EZ111-DV drop-in tankless retrofit (24-in cabinet)
- Noritz NRC-D commercial cascade for restaurants and multi-unit
- Noritz NR-981-OD outdoor-mount install (frees closet space)
- Noritz stainless flue termination and vent-length verification
- Isolator service-valve kit install (mandatory for annual descaling)
- Ultra-low-NOx (14 ng/J) compliance for BAAQMD Rule 9-6
- Gas-line upsizing to 3/4-in or 1-in for 199,900 BTU load
- City of San Jose Building Division permit pull and inspection
- Noritz 25-year heat exchanger warranty registration
Our San Jose Noritz Installer Process
Noritz serial decode + tank-to-tankless site scope
We decode the Noritz serial (or scope your existing tank), verify gas-meter capacity for the 199K BTU load, and measure incoming groundwater temperature (58-62°F locally) to size NRCP vs NRCB vs EZ-series before quoting.
GPM sizing + recirc loop design
For a 2-3 bath SJ home the NRCP111-DV delivers 11.1 GPM at 35°F rise and includes a built-in recirc pump. For master-bath-far-from-closet layouts in Almaden and Cambrian we spec a dedicated recirc loop with crossover valve.
Install to Noritz spec + SJ code
Wall-mount NRCP or NRCB, install isolator service valves, route stainless Category IV vent (or PVC on NRCP condensing), upsize gas line if needed, and file the City of San Jose mechanical/plumbing permit.
Commission + register 25-yr warranty
Run combustion analysis, program recirc schedule, register the serial with Noritz within 30 days to activate the 25-year heat exchanger warranty, and schedule SJ inspection.
What we do on the job
Noritz installs need meter-capacity verification and vent-length math before the wall goes open. We follow Noritz technical bulletins to preserve the 25-year heat exchanger warranty.
- Decode Noritz serial and verify remaining heat-exchanger warranty
- Verify gas-meter capacity for 199,900 BTU load (typical San Jose meter is CFM-limited)
- Measure incoming groundwater temp (58-62°F locally) for GPM rise calc
- Size NRCP-DV vs NRCB Combi vs EZ98 based on fixture count
- Verify vent length against Noritz PVC and stainless charts (NRCP allows longer PVC runs)
- Install isolator service valves — mandatory for annual descaling and warranty
- Upsize gas line to 3/4-in or 1-in if meter-to-appliance run exceeds Noritz chart
- Route condensate to indirect waste with neutralizer on NRCP condensing
- Register 25-yr heat exchanger warranty within 30 days of install
- Schedule annual descaling reminder to preserve warranty coverage
Why Noritz Works Well in San Jose
In San Jose, Noritz is our recommendation for homeowners in Willow Glen, Almaden Valley, Rose Garden, Berryessa, Evergreen, and Cambrian who want the industry's longest heat-exchanger warranty (25 years, professionally installed) and the option of a drop-in EZ-series retrofit that lands on an existing 40-gal tank footprint. NRCP111-DV with built-in recirc is our default for 2-3 bath homes. Ultra-low-NOx compliance meets BAAQMD Rule 9-6 targets today.
- Noritz 25-year heat exchanger warranty (longest in the U.S. tankless market)
- NRCP111-DV built-in recirc pump — no external pump needed for standard SJ layouts
- EZ-series 24-in cabinet drops onto existing 40-gal tank footprint
- Ultra-low-NOx (14 ng/J) meets BAAQMD Rule 9-6 zero-NOx interim limit (2027 ready)
- PVC vent option on NRCP condensing — no B-vent chase needed
- NRCB Combi cuts one appliance from Almaden / Willow Glen basement mechanical rooms
- Same-week Noritz stock through the Union City / Hayward distributor
- 1-year labor warranty on top of the Noritz 25-year heat exchanger warranty
City Overview • Santa Clara County
Noritz Tankless Water Heater Installation and Service in San Jose, CA — At a Glance
San Jose is our home market — we run 15+ water heater jobs per week across the 95110–95148 footprint. Every era of San Jose housing has its own quirks: 1920s Willow Glen bungalows almost always need gas-line upsizing for tankless, Almaden Valley slab-on-grade garages have their own seismic strapping approach, and 1970s Evergreen tract homes commonly need code-correction work on venting and expansion tanks during any replacement.
Permits pulled with
San Jose Development Services
Utility
PG&E gas & electric
Local climate
Mediterranean — mild winters, dry summers; garage tanks rarely freeze
Housing stock we work on
1920s Willow Glen craftsman • 1950s Cambrian ranch • 1970s Almaden tract • modern North SJ townhome
ZIP codes covered
- 95110
- 95112
- 95116
- 95118
- 95120
- 95124
- 95125
- 95126
- 95128
- 95129
- 95131
- 95135
- 95148
Nearby landmarks
Santana Row • Downtown SJ • Almaden Lake
San Jose — Frequently Asked Questions
Which San Jose ZIP codes do you cover?
Every San Jose ZIP from 95110 through 95148, including 95110 Downtown, 95112 Japantown, 95116 East San Jose, 95118 Cambrian, 95120 Almaden Valley, 95124 Willow Glen–Cambrian, 95125 Willow Glen, 95126 Rose Garden, 95128 Burbank–Valley Fair, 95129 West San Jose, 95131 Berryessa, 95135 Evergreen, and 95148 Silver Creek.
Do San Jose water heater jobs require a permit?
Yes. San Jose Development Services requires a plumbing permit for every water heater replacement and installation — including like-for-like tank swaps. Inspection covers CPC 507.2 seismic strapping, expansion tank, T&P discharge, combustion air, and vent clearance. We pull the permit and coordinate the inspection.
How fast can you get to my San Jose neighborhood?
Willow Glen, Cambrian, Rose Garden, and Downtown typically see a tech within 2–4 hours. Almaden Valley, Evergreen, Berryessa, and Silver Creek are on 3–5 hour windows depending on the day. Same-day is available across all 13 ZIPs when scheduling allows.
Do you understand San Jose's older housing stock?
Yes. We work daily in 1920s Willow Glen craftsman bungalows with half-inch black-iron gas mains, 1950s Cambrian ranches with atmospheric-vent tanks in closets, 1970s Almaden tract homes with garage installs, and modern North San Jose townhomes with tankless conversions. Each era needs a different scope.
Which Noritz Model Fits Your San Jose Home?
Noritz lineup for SJ
Option A: NRCP111-DV — 2-3 bath standard with built-in recirc
Option B: NRCB199-DV Combi — space heating + DHW combined
Option C: EZ98-DV — drop-in 40-gal tank replacement
Upfront SJ cost
Option A: $5,400-$7,200 for NRCP111-DV with recirc
Option B: $7,800-$10,500 for NRCB Combi
Option C: $4,600-$6,000 for EZ98-DV drop-in
Operating cost on PG&E SJ
Option A: ~180 therms/yr at $2.40 = ~$432/yr (0.96 UEF)
Option B: ~185 therms combined for DHW share
Option C: ~185 therms/yr at 0.93 UEF = ~$444/yr
Willow Glen / Almaden fit
Option A: NRCP wall-mounts and frees closet floor space
Option B: NRCB replaces both boiler and tank — Cambrian basement fit
Option C: EZ98 lands on existing 40-gal pad, minimal repipe
Warranty position
Option A: 25-yr heat exchanger + 5-yr parts
Option B: 25-yr HX + 5-yr parts + 2-yr pump
Option C: 25-yr HX + 5-yr parts
The Noritz Line We Install in San Jose
In San Jose across 95110-95148 we install the full Noritz lineup: NRCP111-DV / NRCP1112-DV condensing with built-in recirc, NRCB199-DV Combi, EZ98-DV / EZ111-DV drop-in retrofit, NR-981-OD outdoor-mount, NRC-D commercial cascade, and legacy Noritz N-series service. Every install includes isolator valve kit, condensate neutralizer where applicable, and 25-yr heat exchanger warranty registration.
Service hub
Broader noritz tankless water heater installer coverage in San Jose.
Closest city pages
Nearest city hubs by drive time from San Jose.
Frequently asked questions
Noritz Installer in San Jose? Call Now.
Call (669) 337-9311 or text (408) 470-0191 with a photo of the data plate or your existing tank. We size NRCP vs NRCB vs EZ98, verify meter capacity for 199K BTU, and quote before dispatch — most SJ Noritz jobs are scoped on the first call.
- Licensed CSLB #1008381
- Bonded & Insured
- Open 24/7
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