Whole House Water Filter Cost
Whole-house water filters cost $600–$3,000 for the equipment and $200–$1,000 for professional installation. Carbon filters ($800–$2,500) remove chlorine and VOCs; water softeners ($600–$2,000) treat hardness. Combination systems cost $1,500–$5,000. Annual maintenance runs $50–$300 for cartridge replacements or salt. Compare system costs in our well vs city water guide for specific models.
Whole House Filter Costs by Type
Carbon Filters (City Water)
Equipment: $800–$2,500
Installation: $200–$500 (professional) or DIY
Annual maintenance: $50–$300 (cartridges or media)
Carbon filters remove chlorine, chloramine, VOCs, and sediment. Backwashing systems (SpringWell CF+, Pelican) cost more upfront but have lower maintenance. Cartridge systems (Aquasana) cost less upfront but require frequent replacements.
Water Softeners (Well Water)
Equipment: $600–$2,000
Installation: $200–$500 (professional) or DIY
Annual maintenance: $60–$120 (salt at $5–10/month)
Softeners remove hardness (calcium, magnesium) and trace iron. Salt-based systems (Fleck 5600SXT, SpringWell SS+) need regular salt refills. Salt-free conditioners cost more but skip the regeneration process.
Combination Systems (Softener + Filter)
Equipment: $1,500–$5,000
Installation: $500–$1,000 (professional)
Annual maintenance: $150–$400 (salt + cartridges)
Combination units handle hardness, chlorine, sediment, and iron. Common for well water with multiple contaminants. Higher upfront cost but simpler install than separate systems.
Reverse Osmosis (Whole House)
Equipment: $4,000–$10,000+
Installation: $1,000–$2,000 (professional only)
Annual maintenance: $300–$600 (membranes, filters)
Whole-house RO is rare and expensive. Removes nearly all contaminants but wastes 3–5 gallons per gallon produced. Most homes use point-of-use RO (under-sink) instead, which costs $200–$600.
Installation Costs
- DIY install: $0 (you provide labor). Most softeners and carbon filters are DIY-friendly if you have basic plumbing skills.
- Professional install: $200–$1,000 depending on system complexity, plumbing modifications, and local labor rates. Expect $300–$500 for standard installs.
- Plumbing upgrades: Add $100–$500 if you need new shut-off valves, drain lines, or electrical outlets.
Ongoing Costs
| System Type | Annual Cost | What You Pay For |
|---|---|---|
| Carbon filter (backwash) | $50–$100 | Media replacement every 5–10 years |
| Carbon filter (cartridge) | $150–$300 | Cartridges every 3–12 months |
| Water softener | $60–$120 | Salt ($5–10/month) |
| Sediment pre-filter | $30–$60 | Cartridges every 3–6 months |
Total cost of ownership over 5 years: $1,100–$3,500 for most carbon filters or softeners (equipment + install + maintenance). Compare systems in our well vs city guide.
Frequently Asked Questions
How much does it cost to install a whole house water filter?
Equipment costs $600–$3,000. Professional installation adds $200–$1,000. DIY install saves labor costs if you're comfortable with basic plumbing (soldering or compression fittings, drain lines). Total installed cost: $800–$4,000 for most systems.
What is the cheapest whole house water filter?
Sediment filters cost $50–$200 for equipment. They remove sand, silt, and rust but not chemicals. For full filtration, basic cartridge carbon filters start around $600. Fleck 5600SXT softeners (well water) start around $600–$800.
How much does whole house water filter maintenance cost per year?
$50–$300 depending on system type. Backwashing carbon filters need media replacement every 5–10 years ($100–$300). Cartridge systems need replacements every 3–12 months ($50–$150 per set). Softeners need salt ($60–$120/year).
Did this answer your question?