Household water treatment in Austin, TX.

Austin Water draws surface water from the Lower Colorado River as it flows through Lake Travis and Lake Austin, and treats it at three plants. Its 2025 Water Quality Report puts total hardness at an average of 93 ppm, or 5.4 grains per gallon, and calls Austin tap water moderately hard.

Austin's chloramine treated river water

Austin Water disinfects with chloramine, and its 2025 report shows an average of 2.3 ppm across the distribution system, with a high of 3.1 ppm. The same report lists delivered hardness from 70 to 126 ppm, averaging 93 ppm.

The way we work does not change from house to house. We look up the public data on your water, tell you what your home actually needs, and put it in for one all-in price.

What we fit in Austin homes

• A softener and carbon filter for the whole house, fitted on your main line, as the flagship bundle starting at $2,699 installed.
• Reverse osmosis under the sink for drinking water, and the part of the setup that deals with PFAS.

Done locally

Austin systems go in where the main line reaches the house, usually the garage or an exterior wall, installed by a licensed, insured plumber, with a drinking water tap at the kitchen sink as an option.