Phoenix price research
Water softener and reverse osmosis cost in Phoenix, AZ
Checked 2026-10-02 · Our price method
Advertised prices we found: $2,550, $2,988 and $3,399 (3 installers; too few to show a range).
These are advertised installed prices for the smallest standard size on an existing plumbing loop, not what everyone pays. Equipment, a new loop, or an in-home sales visit can add to the price. See how we check prices.
Customer-reported: people who bought from in-home sales companies report paying more, typically about $6,000 (7 reports from the last two years).
Where these prices come from
From 3 Phoenix-area installers that publish this price on their own website or in their own ads, checked October 2026. We show the range, not each company’s price, because every home and every system is different. Ask any installer for a written quote that lists the equipment and the work.
See who installs it.
Compare the systems and brands each Phoenix-area installer offers.