What Water Softeners & Filters Cost in Princeton

Water softener repair cost

A valve rebuild runs $250–$500 and resin replacement $400–$800. Repair

Softener installation/replacement cost

A complete softener replacement runs $1,200–$2,800. Installation

Whole house water filter cost

Whole-home filtration with a softener falls in the $2,500–$4,500 range. Whole house filters

Reverse osmosis install cost

As planning estimates, an under-sink reverse osmosis system runs $500–$1,500 supplied and installed, depending on the brand. Installing a system you already bought runs $200–$350. Filter changes run $125–$225 a visit. See reverse osmosis installation.

RO installation

Well water treatment cost

Well water treatment depends on your test results. As planning estimates:

• Iron filter: $1,800–$4,000
• Sulfur (air injection): $2,000–$3,500; chemical injection systems $3,000–$6,000
• UV disinfection: $1,200–$2,200
• Well water softener: $1,500–$3,500
• Whole-house PFAS filter: $3,000–$5,000

See well water treatment.

Well treatment

What changes the price

What changes the price of a water softener or filter:

• Capacity: a bigger household or harder water needs a larger tank and more resin.
• Plumbing: reusing an existing loop and drain costs less than new lines, a new drain run or a move to a new spot.
• Well vs. municipal water: well homes often need an iron or sediment filter ahead of the softener.
• Media and valve: metered valves, specialty resin and filter media cost more up front but can cost less to run.

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