How much does a water softener cost installed?

A bag of water softener salt pellets on a workbench next to a softener tank

Most installed water softeners cost about $1,100 to $3,000. HomeAdvisor reports an average near $1,500. Fixr reports about $2,500. Small, basic systems can come in lower, and big whole-home systems can go well above that.

These are national averages from Fixr (opens in new tab) and HomeAdvisor (opens in new tab), not our prices. We give a written quote only after we test your water.

Typical installed cost, national guides

Bars show the usual range. Not our prices.

Under-sink reverse osmosis$300 to $950
Water softener (Fixr range)$1,100 to $3,000
Water softener, HomeAdvisor averageabout $1,500
Water softener, Fixr averageabout $2,500
$0$1,000$2,000$3,500

Before you price one: do you need it?

The cheapest softener is the one you do not buy. In Sacramento, river-fed city water averages about 2 to 5 grains per gallon. That is soft to moderately hard, and many homes do not need a softener at all. Check our simple decision guide and the local hardness numbers first.

What changes the price

Running costs to plan for

How to avoid overpaying

  1. Get your real hardness number in grains per gallon, from a test at your tap.
  2. Ask how the system was sized. The answer should mention your hardness and your household's water use.
  3. Get the quote in writing, with the equipment, labor and any plumbing listed separately.
  4. Compare at least two quotes.

Not sure a softener is the right fix? A reverse osmosis system costs less if your main concern is drinking water. Compare them in reverse osmosis vs. a water softener. Ready to look at options? See our water softener page.

Know your water before you buy anything

We test hardness, TDS, chlorine and pH at your kitchen sink for free, and you keep a printed report. If you do not need a system, we will tell you.

Book my free water test

Common questions

How much does a water softener cost installed?

National cost guides put most installs at about $1,100 to $3,000. HomeAdvisor reports an average near $1,500, and Fixr reports about $2,500. Small basic systems can cost less, and large whole-home systems can cost much more.

What does a water softener cost to run?

The main running cost is salt or potassium, plus a small amount of water and power for each recharge. How much you use depends on your hardness and how much water your home uses.

Is a cheaper softener worth it?

Only if it is sized right. A softener that is too small recharges too often and wastes salt and water. One that is too big costs more than you need. Sizing depends on your actual hardness and your household's water use.

Book my free water test