Water Treatment Services in San Antonio, TX
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At Gaines Soft Water, we’ve proudly served San Antonio, TX with professional water treatment services since 1989. As one of the largest and most diverse cities in Texas, San Antonio presents a wide range of water quality challenges — from hard water in suburban homes to sediment and chlorine in urban water supplies. Whether you’re using city water or relying on a private well, we deliver certified solutions that improve your water quality, protect your plumbing, and provide peace of mind.
Our team of WQA-licensed technicians and Texas Class 3 certified specialists brings unmatched experience and integrity to every job. From single-family homes and apartment complexes to commercial and industrial buildings, we design water treatment systems that solve real problems and provide lasting value.
Why Water Treatment Is Essential in San Antonio
San Antonio is known for its very hard water, primarily due to high levels of calcium and magnesium in the Edwards Aquifer. Common issues residents face include:
- Scale buildup in pipes, fixtures, and appliances
- Stains on dishes, bathtubs, and laundry
- Dry skin and hair
- Shortened appliance life and reduced energy efficiency
- Unpleasant taste or odor in drinking water
Whether you’re located in Stone Oak, Alamo Heights, Southtown, Northwest San Antonio, or surrounding suburbs, Gaines Soft Water has a system designed to fit your home or business perfectly.

Our Water Treatment Services in San Antonio, TX
We provide a full suite of services for residential, commercial, and industrial customers throughout the San Antonio area.

Water Softeners
We install high-efficiency water softeners that remove hardness minerals to reduce scaling, improve water quality, and extend the life of your appliances and plumbing.

Water Filtration Systems
Our filtration systems remove chlorine, sediment, iron, and other contaminants from both city and well water, providing cleaner water for every tap in your home or facility.

Reverse Osmosis Systems
Enjoy clean, great-tasting water with a reverse osmosis (RO) system that removes up to 99% of total dissolved solids, heavy metals, and harmful chemicals.

Well Water Treatment
For homes on the outskirts of San Antonio using private wells, we offer specialized systems that target iron, sulfur, bacteria, sediment, and low pH levels. These often include UV disinfection for added safety.

Water Testing & Analysis
Every system begins with a free, in-home water test to assess your water’s hardness, pH, iron content, chlorine levels, and more. We use this data to design a system built just for your needs.

Commercial & Industrial Water Systems
We provide scalable systems for offices, restaurants, retail centers, medical facilities, and manufacturing plants. These solutions are engineered for efficiency, compliance, and performance.
We Service All Brands – 24/7 Emergency Repairs
Our team services all major water treatment system brands, including:
Rainsoft, Culligan, Rayne, DMS, Alamo, Lindsay, Sears, Aqua Master, General Electric (G.E.), Bruner, Hague, Star, Water Boss, and Montgomery Wards.
Even if we didn’t install your current system, we’ll maintain and repair it with expert care. Plus, we offer 24/7 emergency service to handle urgent issues quickly and effectively.

Start Enjoying Better Water in San Antonio Today
If you’re tired of hard water stains, strange tastes, or plumbing problems, it’s time for a solution that works. Gaines Soft Water proudly serves all areas of San Antonio, TX with professional water treatment services, including softeners, filtration, reverse osmosis, and well water systems.
Call 210-635-7418 or request your free water test online and let’s get started on your custom solution today.