Quick answer
Repair thermostats, elements, or valves on young tanks — replace when tank is corroded, leaking from shell, over 10–12 years, or repair exceeds one-third of new install cost.
- Compare practical options by risk, cost range, and comfort outcome.
- Identify what to verify in an estimate before you sign.
- Choose a path that fits your budget and timeline.
No hot water today
Determine if it's a $200 fix or time to upgrade efficiency.
Compare your options
Repair
Element, thermostat, igniter, valve on viable tank.
Replace
Tank leak, age, rust, inefficient unit, upgrade to tankless/hybrid.
Key terms and context
This guide is written for plumbing decisions in the Puget Sound. It uses the same terminology you'll hear from inspectors, technicians, and permit offices.
Repairing a rusted tank
External leak means tank failure — element fixes won't help.
How we build this guidance
- Straight answers first, so you know your options without the fluff.
- Written and reviewed by techs who do this work every day.
- Specific to Puget Sound homes, weather, and utilities.
- Updated 2026-06-08 from real plumbing jobs around the region.
Methodology: Repair-vs-replace thresholds from Eco field policy.
Last updated: 2026-06-08
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Common questions
Emergency replacement timing?
Eco offers same-day options across the Puget Sound when inventory allows — [PROOF: verify SLA with client].