Water Heater Replacement in San Jose, CA
Tired of lukewarm showers, hidden leaks, and endless repair bills? We replace old tanks quickly and cleanly.
Water Heater Replacement in San Jose & the Bay Area
When a water heater starts leaking from the tank, the countdown has begun — and waiting risks a burst tank and a flooded garage or closet. Promax replaces water heaters across San Jose quickly and cleanly, often next-day: we drain and haul away the old unit, set the new one to current code with seismic straps, expansion tank, drip pan, and proper venting, pull the permit, and leave you with hot water the same afternoon.
Replacement is also the moment to upgrade smart: keep it simple with a like-for-like tank, go tankless for endless hot water and a 20-year lifespan, or choose a heat pump water heater and cut operating costs by two-thirds. We quote all the options that fit your space and check any rebate you currently qualify for, so you decide with real numbers.
Water Heater Replacement, Built to Last
Every water heater replacement starts with a plan: a system sized to your home, the permits and testing the job requires, and a written quote you can review before you commit. Free in-home estimates on new systems and replacements. If you would rather spread out the cost, financing is available on approved credit.
- Proper load calculation, required permits, and HERS testing on every job
- We check every rebate and incentive you qualify for at your free estimate.
- Your written quote itemizes equipment, labor, permits, and every rebate you qualify for
What's Included With Water Heater Replacement
Every water heater replacement project covers the items below, and the scope and price are confirmed in writing before any work starts. When it's finished the technician walks you through what was done and what to watch for. We call back within one business hour, 7 AM – 10 PM.
- Same-day drain, haul-away, and installation for most tank swaps
- Seismic strapping, expansion tank, and drip pan brought to current code
- Choice of like-for-like tank, tankless, or heat pump upgrade at replacement
- Permit pulled and scheduled for you
Need water heater replacement help in San Jose?
Related Services
Most water heater replacement jobs touch one of these, and the same licensed Promax team handles all of them. Each page lists what's included, typical costs and the questions San Jose homeowners ask most. Not sure which you need? Call (669) 777-1997 and we'll point you to the right one.
Where We Work
Promax Service Group serves homes and businesses in San Jose, across Santa Clara County, and in nearby Peninsula and East Bay cities. Same-day service for no-cool, no-heat and no-hot-water calls, 7 days a week. Choose your city for local details, or call (669) 777-1997 to confirm we cover your address.
Frequently Asked Questions
How quickly can you replace my water heater?
Standard 40 and 50-gallon replacements are usually completed same-day or next-day — the swap itself takes 2–4 hours. Tankless conversions and heat pump upgrades typically take a full day due to venting, gas, or electrical changes.
What does water heater replacement cost in San Jose?
Like-for-like tank replacements typically run $2,200–$3,800 installed with permit and code upgrades. Tankless conversions run $4,500–$7,500; heat pump water heaters land in between. We'll flag any rebate you currently qualify for before you approve the estimate — TECH Clean California and HEEHRA single-family funding are both unavailable right now, so we quote the real cost rather than assuming a rebate that may not apply.
What code upgrades are required when replacing in California?
Current code requires seismic strapping (two straps), a thermal expansion tank on closed systems, a temperature-pressure relief drain line, proper venting, and in many cases a drip pan with drain. Our quotes include every required upgrade — some low bids conveniently leave them out.