Water Heater (Tankless) Replacement Cost in Madison, WI
What homeowners in Madison typically pay to replace a water heater (tankless) in 2026.
Typical range
$25k–$50k
Most homeowners pay around $35,000 installed.
EstimatedUpdated 6/17/2026
How we calculated this
Complex venting and gas line modifications are often necessary for modern tankless system installations.
Nearby cities
Other plumbing replacement costs in Madison
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