Controls
Water softener control valve replacement cost
Typical$150–$600dealer-published
Digital valvesUp to $1,000dealer-published
Replacing a control valve typically costs $150 to $600. Digital valves can reach about $1,000. These figures come from dealer-published prices, so get a quote for your model.
Signs of a failing valve: constant water running to the drain, regeneration at the wrong times, or a display error. Sometimes a seal kit fixes it for much less, so ask before agreeing to a full valve.
These are published ranges and general guidance, not quotes. In the Bay Area, Soft Patagonian offers free water tests.