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Hard water is more than a nuisance, it can damage your pipes, wear out appliances, and leave spots on everything from dishes to faucets. At Radiant Plumbing & Air Conditioning, we bring decades of experience installing and servicing water softener systems in San Marcos homes. Our licensed plumbers understand the unique water challenges in our area and know how to design solutions that protect your home long-term. Whether you need a brand-new installation, routine maintenance, or fast repairs, we provide clear explanations, upfront pricing, and a job done right the first time. With Radiant, you’ll enjoy softer water, greater efficiency, and the peace of mind that comes from working with a team San Marcos families trust.
A well-maintained water softener system not only protects your pipes and appliances, it protects your peace of mind. With Radiant’s Care Club, San Marcos homeowners enjoy regular HVAC and plumbing inspections that include checking for leaks, corrosion, and system performance issues that can compromise your water softener over time. By catching small problems early, we help extend the life of your equipment and prevent costly repairs down the road. Members also receive no dispatch fees, 10% off services, and priority scheduling – even during emergencies – making it easier than ever to keep your whole-home water quality in tip-top shape.
At Radiant Plumbing & Air Conditioning, we believe San Marcos families deserve more than softer water—you deserve confidence in the system that delivers it. That’s why every water softener installation, repair, and plumbing service that we provide is backed by our Home Comfort Guarantee. From upfront pricing with no surprises to workmanship you can rely on, we stand behind every job 100%. If your system doesn’t perform as promised, we’ll make it right. With Radiant, you get more than a water softener—you get peace of mind, guaranteed.
Thousands of Austin and San Antonio residents have trusted Radiant Plumbing & Air Conditioning as their full-home service provider for all their maintenance and repair needs. Discover our others services – like air conditioning and plumbing.
We proudly service the following cities and neighborhoods across San Antonio, TX:
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San Marcos’ beautiful springs come with a tradeoff: very hard water from the Edwards Aquifer. Left untreated, mineral scale cakes onto faucets and shower glass, shortens the life of dishwashers and clothes washers, and turns water heaters—especially tankless—into sluggish, noisy energy hogs. Radiant recommends and installs water treatment that fits how you live, from mid-century homes near The Square to newer builds in TRACE, La Cima, and Blanco Vista, as well as student rentals around Texas State.
We start with a quick hardness/flow assessment and talk through your goals (spot-free dishes, softer laundry, protecting a new tankless water heater, protecting your skin and hair, improving taste/odor, etc.). Then, we pick the right size based on actual water hardness (in ‘grains’), so the softener regenerates only when it should – no wasted salt, no cold showers. We install it neatly with a bypass valve, labeled shutoffs, a proper air-gap to the drain, and cleanly routed brine lines. Tankless water heater? We add an annual descaling to keep the heat exchanger in top shape
Our maintenance visits focus on catering to San Marcos conditions. We recommend quality salt, periodic resin checks, sanitation of the brine tank, and calibration after plumbing changes or remodels. Light commercial spaces, such as cafés off University Dr., salons, and retailers near the Outlet corridor, see fewer equipment breakdowns and better customer experiences when water softening systems are installed to protect ice makers, fixtures, and on-demand heaters.
Need more than softer water? Explore some of our related San Marcos services:
From Spring Lake to Wonder World, expect transparent pricing, respectful workmanship, and honest guidance on repair versus replacement options. Ready for better water and longer-lasting fixtures? We Answer the Call.
