Plumbing cost guide

Tankless Water Heater Replacement Cost in 2026: On-Demand Pricing

Typical 2026 tankless water heater replacement costs: $2,200 to $4,800 typical range ($3,400 national average). Compare gas vs electric, GPM flow rates, and conversion costs.

Cost Snapshot

$2,200 – $4,800

Typical planning range based on the published references reviewed for this guide.

Use this estimate to prepare questions and compare written, itemized contractor proposals. Actual costs vary with project scope, materials, access, permits, and local conditions.