Water Heater Repair & Replacement — San Jose, CA
We've been the after-hours number for San Jose-area homeowners and a few local property managers since 2019. Calls go to a real person. Plain-spoken estimates, written quotes, no surprise add-ons mid-job. That's the whole pitch.
Talk to a tech: (800) 555-1024
Local context for San Jose
If you're inside the city limits, we're typically there inside an hour during business hours. Outside the metro, plan on a bit longer.
From the books — a recent San Jose job
Recent San Jose job: weeping T&P valve in a 2010s home. We replaced the T&P and added an expansion tank after diagnosing thermal expansion, no expansion tank installed. Cost ran $425 — pretty middle-of-the-road for that fix.
What's typical for this job
Water heaters last 8 to 12 years on average — less in hard-water regions, more if the anode rod gets replaced every 4 years. Most calls come at end-of-life when the tank starts leaking from the bottom seam.
When the tank goes, swap it. Repair on a 10-year-old tank that's leaking is throwing money away. We carry standard 40 and 50 gallon gas and electric tanks on our trucks for same-day install. Tankless replacements take 1–2 days because of the gas-line and venting work.
If you have a tankless unit and you're getting cold-water sandwich (hot for 30 seconds, cold for 10, hot again), it's almost always scale buildup in the heat exchanger. Annual descaling fixes it — $225 to $380 — and is required by the manufacturer to keep your warranty valid.
Brand-wise, we install whatever you want. Defaults we keep stocked: Rheem and AO Smith for tank, Rinnai and Navien for tankless. Bradford White on commercial.
Cost range
For water heater repair & replacement jobs in the San Jose area:
- Gas tank water heater 40–50 gal install: $1,690 – $2,625
- Electric tank water heater 40–50 gal install: $1,440 – $2,375
- Gas tankless install (whole-home): $4,250 – $6,000
- Annual tankless descaling: $280 – $475
- T&P valve replacement: $230 – $350
- Anode rod replacement: $350 – $550