Updated 30 September 2026 · Prices checked 29 August 2026
Equipment cost for well water filtration ranges from around $190 for a basic point-of-use reverse osmosis unit to roughly $2,200 or more for a whole-house well water system that combines sediment, iron, and disinfection treatment. The right number for your home depends on what your water test actually finds, not a single average price.
Well water filtration system cost depends on which contaminant you are actually treating, not on a single average price. The EPA estimates that water pumped from about one in five private wells contains a contaminant above a human-health benchmark, and sediment, iron, hardness, and bacteria each call for different equipment at a different price point.
Retailers rarely publish that breakdown. The CDC is explicit that no single treatment type protects against every problem, which means a homeowner shopping by average sticker price alone is likely buying equipment that does not match what their water test actually found.
Homeowners pricing out treatment usually want three numbers: what the equipment costs, what installation adds, and what it costs to keep running every year. Most retail pages only answer the first question and leave the other two blank, so this guide prices each problem separately using real, current published figures.
Well Water Filtration System Cost by Problem
Sediment only
If a water test shows particles and turbidity but nothing else, a standalone sediment filtration system is the lower-cost fix. SpringWell lists its Whole House Water Filter System starting at $1,160.25 for equipment. Installation labor and annual filter or cartridge replacement cost are not published alongside the equipment price and vary by installer.
This cost guide sits in our Costs & Buying Guides section alongside the well pump replacement cost guide.
Iron
Iron-heavy well water usually needs a combination system built for well water specifically, not a generic city-water filter. SpringWell’s Whole House Well Water Filter System, built for sediment, iron, and other well-specific contaminants together, starts at $2,231.25 for equipment. That higher price reflects the added oxidation and filtration stages iron removal requires beyond basic sediment filtering.
Hardness
Hardness is treated with a water softener, and equipment pricing spans a wide range by brand and capacity. Aquasure lists its Harmony Series 48,000-grain softener at $629.99, while SpringWell’s Salt Based Water Softener System starts at $1,606.50. Both treat the same problem; the gap reflects differences in resin capacity, warranty length, and brand positioning rather than one price being wrong.
Bacteria
A positive coliform or bacteria test typically calls for ultraviolet disinfection. SpringWell’s UV Water Purification System starts at $1,100.50 for a complete system. Annual running cost is easier to pin down here than for other categories: Aquasure prices a replacement UV bulb, the part every UV system needs swapped roughly once a year, at $89.99.
The works
A well with sediment, iron, hardness, and a taste or odor problem all at once usually points to a bundled system rather than four separate purchases. Aquasure’s Signature Pro bundle, combining a 72,000-grain softener, a 75 GPD reverse osmosis system, and a triple-purpose pre-filter, lists at $1,079.99. SpringWell’s combined water filter and salt-based softener system starts at $2,231.25 for the same general category of full-house coverage.
| Problem | Equipment cost | Annual running cost |
|---|---|---|
| Sediment only | From $1,160.25 | |
| Iron (well-specific system) | From $2,231.25 | |
| Hardness (softener) | $629.99 to $1,606.50+ | |
| Bacteria (UV) | From $1,100.50 | ~$89.99 (bulb) |
| The works (bundle) | $1,079.99 to $2,231.25+ |
Blank cells reflect figures no manufacturer or retailer currently publishes rather than a guess. Installation labor in particular is almost always quoted locally rather than listed online, since it depends on plumbing access, casing location, and whether electrical work is needed for a softener or UV system.
Challenges That Make Filtration Cost Hard to Pin Down
The first challenge is that equipment price alone is not the total cost. A softener or UV system needs a power source and drain access that a straight sediment filter does not, and that plumbing and electrical work is priced by the installer, not the manufacturer. Sizing also affects price: a system undersized for the home’s peak flow rate in gallons per minute restricts pressure at the tap regardless of how much the equipment cost.
The second challenge is bundling. Combination systems that treat two or three problems at once often cost less than buying each piece separately, but comparing a bundle’s price to a single-purpose system’s price is not an apples-to-apples comparison unless you know exactly what each one treats.
The third challenge is that price alone says nothing about whether a system matches your actual water test. A water test that names the specific contaminant is the step that determines whether any of these prices are money well spent.
No single home water treatment system removes every type of contaminant. The CDC recommends testing well water first, then checking a system’s label to confirm it removes the specific germ or chemical found in that test, rather than buying equipment based on price or brand reputation alone.
Reverse Osmosis vs. Whole-House Filter Cost
Point-of-use reverse osmosis and whole-house filtration solve different problems at very different price points. Aquasure’s Premier Advanced Series RO system, a 4-stage under-sink unit, lists at $189.99 and treats only the water coming from one faucet. SpringWell’s whole-house well water system, priced from $2,231.25, treats every tap in the house but does not polish drinking water to RO standards the way a dedicated RO unit does.
The two are not competitors; they solve different layers of the same problem. Whole-house filtration handles sediment, iron, and hardness so plumbing and appliances last longer, while RO handles what is left in the water you actually drink. Buying RO alone on well water with untreated iron or sediment risks fouling the RO membrane faster than the same unit would foul on filtered water.
DIY vs. Professional Installation
Manufacturers rarely publish installation labor cost because it depends on local plumbing code, whether the system needs a dedicated drain and power circuit, and how accessible the main water line is in a given house. A straight sediment filter is the most DIY-friendly option for a homeowner comfortable with basic plumbing.
Softeners, UV systems, and whole-house well water systems more often involve professional installation, since they typically need electrical work, drain lines, and correct sizing to the home’s water pressure and flow rate. Getting installation wrong on a UV system in particular can leave water untreated even though the equipment itself is working.
Ask any installer for a written, itemized quote that separates equipment cost from labor cost before you agree to a bundled number. That breakdown is the only way to compare one contractor’s price against another’s, or against buying the equipment separately and hiring a plumber directly.
How to Match Filtration Cost to Your Actual Water Problem
Start with a water test, not a price list. A test result naming sediment, iron, hardness, or bacteria as the actual problem narrows the field to one or two equipment categories instead of every product a retailer sells. Skipping the test and buying based on price alone is how homeowners end up with a softener that does nothing for the iron staining they actually wanted fixed.
Testing is the cheapest line in this budget and the one that decides all the others. Our well water testing cost guide lists published laboratory prices so the test itself is not a guess.
Once the test results are in hand, price the specific category that addresses what was found, not the most popular or most advertised system. A full breakdown of filtration types by contaminant is the starting point for matching equipment to results before any purchase.
Frequently Asked Questions (FAQs)
What does each filtration type cost?
Equipment cost varies by problem: sediment-only systems start around $1,160, well-specific iron and sediment systems start around $2,231, softeners range from roughly $630 to $1,600 or more, and UV disinfection systems start around $1,100. Point-of-use reverse osmosis units start lower, around $190.
What are yearly maintenance costs?
Yearly running costs vary by system type and are not consistently published by manufacturers. A UV system needs a replacement bulb roughly once a year, which costs around $90; softeners need periodic salt refills; sediment and carbon filters need cartridge replacement on a schedule set by usage.
How does reverse osmosis cost compare to a whole-house filter?
A basic point-of-use RO system starts around $190 and treats water at a single faucet. A whole-house well water filtration system starts around $2,231 and treats every tap but does not polish drinking water the way RO does. Most well owners with elevated contaminants need whole-house filtration first and RO as an additional step for drinking water.
Is DIY or professional installation better?
A standalone sediment filter is the most realistic DIY installation for a homeowner comfortable with basic plumbing. Softeners, UV systems, and combination well water systems usually need professional installation because they involve electrical work, drain lines, and sizing to the home’s water pressure.
Why don’t retailers publish installation cost?
Installation labor depends on local plumbing code, how accessible the main water line is, and whether electrical or drain work is needed, all of which vary house to house. That is why equipment cost is published online while installation is typically quoted locally after a site visit.
