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Tankless Water Heater Installation Cost in Tennessee

Based on 2 community reports across Tennessee, NeighborPrices shows a typical tankless water heater installation range from $3475.00 to $7000.00, with a median of $5237.50.

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Price distribution

Median $5,237.50 · typical $4,356.25–$6,118.75

$5,237.50

$3,475.00

$7,000.00

Shaded band: middle 50% of reports (25th–75th percentile). Median tick in teal.

Most jobs land between $3,651.25 and $6,823.75 (5th–95th percentile). Ignoring 1 outlier below and 1 above.

Based on reports from Apr 2026 (first entries this month).

Data freshness: 2 reports in the last 90 days. Help keep this current →

Data last updated Apr 7, 2026.

Size context is still being collected (0 of 2 reports include home size or system size). Numbers above may not reflect what your specific home would pay. Add a report to sharpen this →

Latest reports

The underlying prices behind this page.

2 total reports

$7,000.00

Chattanooga, TN · 8 days ago

Size not reported

Got charged 7 grand for a new tankless water heater and a few pipe fixes.

$3,475.00

Chattanooga, TN · 8 days ago

Size not reported

Got a tankless water heater installed through another company for, much cheaper than the initial quote of $7900 from Metro Plumbing.

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