A whole-house well water filtration system typically costs $1,500 to $6,500 installed in 2026. A water softener alone runs about $1,500–$3,000, an iron or sulfur system $2,000–$4,000, and UV disinfection $700–$2,500. Most Parker County homes with hardness plus some iron land between $2,000 and $5,000.
Water Well Drilling Weatherford designs treatment for Parker County wells from a lab result, and well water filtration system cost depends almost entirely on what that result shows. Two homes on the same road can need very different systems. One might need a softener only. The next might need iron removal, sulfur control and a softener.
Typical installed prices by stage
| Stage | What it treats | Typical 2026 installed cost |
|---|---|---|
| Water softener | Hardness (calcium, magnesium) | $1,500–$3,000 |
| Iron or sulfur system | Iron, manganese, hydrogen sulfide | $2,000–$4,000 |
| UV disinfection | Bacteria | $700–$2,500 |
| Typical multi-stage system | Hardness plus iron | $2,000–$5,000 |
These ranges follow HomeGuide’s and Mid Atlantic Water’s 2026 figures. A sediment prefilter and an under-sink reverse osmosis unit are smaller add-ons, priced by model.
What Parker County water usually needs
- Hardness. Trinity aquifer water in the outcrop areas is typically hard, so a softener is common.
- Iron and manganese. The EPA’s secondary (aesthetic) standards are 0.3 mg/L for iron and 0.05 mg/L for manganese. Above those levels you get stains and metallic tastes. Higher iron needs an iron filter ahead of the softener.
- Hydrogen sulfide. Deeper Trinity and Paluxy wells can carry the rotten-egg smell. Air injection, chlorination or catalytic carbon handle it. See rotten egg smell in well water.
- Dissolved solids. Some far-west Cross Timbers wells run high. A kitchen RO unit is usually the answer.
What makes a quote go up
- More stages. Every problem you add adds a tank.
- High iron or sulfur, which needs bigger or more aggressive equipment.
- Low-yield wells. Backwashing filters need a burst of flow. A 3–5 gpm well may need a storage tank so backwash doesn’t drain the pressure system.
- Plumbing changes, such as bypass loops, a raw-water sample tap and a drain for backwash.
Test first
A lab panel for iron, manganese, hardness, pH, sulfide and total dissolved solids typically costs $100–$350. It’s the difference between a system that works and one you’ll be replacing in two years. See well water testing and iron filter vs water softener.
Bottom line
Budget $2,000–$5,000 for the typical Parker County mix of hardness and iron, more if you also need sulfur removal or UV. Spend $100–$350 on a lab test first. It's the cheapest way to avoid buying the wrong system.
Questions about your own well? Call (817) 382-3840. A person answers 24/7.
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