How Much Does a Water Softener Cost? [2026 Data]

Water softener installation typically costs $1,000–$4,000. Salt-based units run $500–$1,500 for the unit plus $500–$1,500 labor. Salt-free systems cost $1,500–$3,000 installed.

Size is based on household water use and hardness. Larger homes need bigger units. Bypass valves and proper drain routing add to labor.

Regular salt or potassium refills are ongoing costs. Get a water test first to size correctly.