Water Softeners & Water Filtration in Willis, TX

The City of Willis supplies its residents with groundwater from five city wells in the Jasper aquifer, disinfected with chlorine. Outside city limits, homes around Willis and the east side of Lake Conroe are on private wells or on small systems run by utility districts and water companies.

That makes Willis-area water more varied than most. Here is what shows up, and what treatment does about each one.

A reverse osmosis drinking water system under the kitchen sink.

Explore Our Water Treatment Systems

The same systems we install throughout the Houston area. See specs, warranties, and package details.

Water Softeners

Whole-home softening to stop hard water damage to your pipes, fixtures, and appliances.

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Whole-Home Filtration

Filtration for city and private well water — iron, sediment, chlorine, and more.

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Drinking Water & RO

Reverse osmosis systems for clean, great-tasting drinking water at the tap.

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What Shows Up in Willis-Area Water

Natural fluoride

Fluoride occurs naturally in Willis well water. The city's 2025 report lists 1.44 ppm, below the federal limit of 4 ppm and about twice the 0.7 ppm level the U.S. Public Health Service recommends for community water. Reverse osmosis reduces fluoride at the kitchen tap.

Arsenic

Arsenic occurs naturally in the aquifers under this part of Texas. A 2023 sample from the city system measured 4.4 parts per billion, below the federal limit of 10. The EPA's health goal is zero. The treatment that addresses arsenic is reverse osmosis or ion exchange. A carbon filter does not remove it.

Hard water

Hardness varies a lot around Willis. State test results for the City of Willis average about 107 ppm, roughly 6 grains per gallon. Some nearby systems around Lake Conroe test under 20 ppm, and others test above 300 ppm. A test at your sink tells you whether a softener makes sense for your home.

Chlorine

Chlorine is what makes city water safe to deliver, but many people notice the taste and smell. Activated carbon filtration removes it, and reverse osmosis covers your drinking water.

Private wells

If your home is on a private well, no utility tests your water for you. Well water around Lake Conroe can carry iron, manganese, sulfur odor, and hardness, and it can change over time. Our well water filtration systems are built for this, and a water test is the place to start.

Which Treatment Handles What

• Ion exchange softener — hardness, plus some minerals and radiological elements
• Activated carbon filtration — chlorine, taste and odor, and disinfection byproducts
• Reverse osmosis — the broadest reduction, including arsenic, chromium-6, radium, uranium, and nitrate
• Sediment filtration — particulate and turbidity

This is why our packages pair a whole-home system with a drinking water system. A softener handles the water that goes on you. Reverse osmosis handles the water that goes in you. Neither one does the other job.

Find Out What Is In Your Water Specifically

Because the Willis area is served by the city, by small water systems, and by private wells, your home may have very different water than a neighbor down the road. Two ways to find out what yours is:

• Check your ZIP code below and read its full water report. Your utility name is on your water bill.
• Or let us test your water at your kitchen sink: hardness, chlorine, and total dissolved solids, with the results in front of you.

What We Install in Willis

We install and service whole-home water softeners, whole-home filtration, and PureGuard reverse osmosis drinking water systems throughout the Willis area. Our SENTINEL ELITE package combines all three plus leak detection. Salt delivery and filter changes are covered by the UnitedCare Membership.

Communities We Serve in Willis

Willis, the east side of Lake Conroe, Seven Coves, Panorama Village, and the 77378 and 77318 ZIP codes.

Nearby Areas We Serve

Water changes from one provider to the next, so it is worth checking your own area. We also serve Conroe, Montgomery, The Woodlands and Magnolia.

Already Have a System?

We service and repair water treatment equipment in Willis, typically within 24 to 48 hours, including systems we did not install. See water softener repair, filtration repair, and reverse osmosis repair.

Get Your Willis Water Tested

We will test at your sink and walk you through what the numbers mean, with no obligation.

Call United Water Softeners at 281-240-0261 or request a free in-home water test.

Public water systems serving the Willis area are regulated by the Texas Commission on Environmental Quality and are required to meet federal drinking water standards. Water quality varies by provider and by address. United Water Softeners · TCEQ Licensed WTS III.