4 reports. Useful first pass, but one outlier can still shift the range.
Tankless Water Heater Installation Cost in Arizona
Read what 4 homeowners actually wroteIn Arizona, tankless water heater installation costs range from $3,400 to $9,500, with most homeowners paying around $6,750. The middle 50% of projects fall between $4,975 and $8,375 based on recent local installations.
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Shaded band: middle 50% of reports (25th–75th percentile). Median tick in teal.
Most jobs land between $3,715.00 and $9,275.00 (5th–95th percentile). Ignoring 1 outlier below and 1 above.
Based on reports from Apr 2026 (first entries this month).
Data last updated Apr 7, 2026.
Latest reports
The underlying prices behind this page.
Got quoted $8k from Cummings Plumbing for installing a tankless water heater. First time replacing one.
Got a quote for with 0% financing for the installation of a tankless water heater.
Real homeowner write-ups, locked.
"Needed service ASAP and they responded quickly."
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