Tankless Water Heater Installation Cost in the NeighborPrices database

Tankless water heater installation costs typically range from $1,000 to $15,000, with most homeowners spending around $5,277. Half of the installations in our database fell between $3,494 and $8,250, which can help you understand what to expect in your area. Getting quotes from multiple installers will give you the most accurate pricing for your specific situation.

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Price distribution

Median $5,276.50 · typical $3,493.75–$8,250.00

$5,276.50

$1,000.00

$15,000.00

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

Most jobs land between $1,483.00 and $12,500.00 (5th–95th percentile). Ignoring 2 outliers below and 2 above.

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

Data freshness: 36 reports in the last 90 days. Help keep this current →

Data last updated Apr 8, 2026.

Latest reports

The underlying prices behind this page.

36 total reports

$10,000.00

Tacoma, WA · 6 days ago

Installed a tankless water heater outside and it cost about 10k.

$2,050.00

Tacoma, WA · 6 days ago

Used Your Local Plumbing Company for the installation of a natural gas tankless water heater.

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Real homeowner write-ups, locked.

$ • • •

Bellingham, WA · 6 days ago

"Replaced an old Bosch tankless water heater with a new Rinnai tankless system for."

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