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  • Softeners
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  • Testing

An independent, plain-English guide to the water in your home. We sell nothing.

A hand holds a short length of copper pipe with a brass nut on it, next to a brass compression ring, against a blurred green background.

Costs and Tools

Water Softener Cost Calculator: Upfront, Install and Yearly Costs

Most softeners cost $500 to $1,500 before installation, but quotes run far higher. Enter your quote, hardness and water rate to get your own upfront, yearly and 10-year cost.

Start here

  • What Size Water Softener Do I Need? Sizing Calculator
  • Well Water Test Kits and Lab Tests: What to Test For and When a Kit Is Not Enough
  • Hard Water vs Soft Water: What the Difference Means for Your Home
  • Salt-Free Water Softeners: What They Do, What They Do Not Do

Calculators

  • Water Softener Cost Calculator: Upfront, Install and Yearly Costs
  • What Size Water Softener Do I Need? Sizing Calculator

Where does your water come from?

  • City water. Start with what your utility supplies and whether it is hard.
  • A private well. Nobody tests it for you. Here is where to begin.
  • Not sure. Start with the difference between hard and soft water.

Browse by topic

  • Water SoftenersCost, size, salt and upkeep
  • Hard WaterWhat it does and how to measure it
  • Filters and ROWhat each one removes
  • Well WaterTesting and treatment
  • Testing and ContaminantsReports, PFAS, lead, nitrate
  • Costs and ToolsCalculators with the math shown
Recently published

More guides

  • Are Water Softeners Worth It? How to Work It Out for Your HouseWater Softeners · Updated Nov 8, 2026
  • Reverse Osmosis vs Water Softener: Different Jobs, Sometimes BothWater Softeners · Updated Nov 7, 2026
  • Water Softener vs Water Filter: Which One Solves Your ProblemWater Softeners · Updated Nov 7, 2026
  • Water Softener vs Water Conditioner: The Real DifferenceWater Softeners · Updated Nov 7, 2026
  • Water Softener Installation Cost: What Plumbers Charge ForCosts and Tools · Updated Nov 7, 2026
The Filtered Tap

An independent plain-English guide to home water treatment. Independent guides, researched and checked against original sources, and dated so you can see when they were last reviewed.

Topics

  • Water Softeners
  • Hard Water
  • Filters and RO
  • Well Water
  • Testing and Contaminants
  • Costs and Tools
  • Tools

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