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Water Softener Installation Cost in California

Based on 3 community reports across California, NeighborPrices shows a typical water softener installation range from $2200.00 to $9000.00, with a median of $4000.00.

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Price distribution

Median $4,000.00 · typical $3,100.00–$6,500.00

$4,000.00

$2,200.00

$9,000.00

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

Most jobs land between $2,380.00 and $8,500.00 (5th–95th percentile). Ignoring 1 outlier below and 1 above.

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

Data freshness: 3 reports in the last 90 days. Help keep this current →

Data last updated Apr 7, 2026.

Size context is still being collected (0 of 3 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.

3 total reports

$2,200.00

Riverside, CA · 7 days ago

Size not reported

Got a water softener installed by a licensed plumber for around total.

$4,000.00

Riverside, CA · 7 days ago

Size not reported

Installed a water softening system including a reverse osmosis unit that produces alkaline water, which greatly improved drinking water quality.

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Real homeowner write-ups, locked.

$ • • •

Riverside, CA · 7 days ago

Size not reported

"Paid $9k for an Evince whole house water softener plus RO system. The installation was a bit odd and currently the water tastes salty, but the RO water is great."

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