- San Antonio's Trusted Plumbing Experts
Water Systems in Castroville & San Antonio
At Five Star Plumbing, we understand the importance of reliable water systems for your home or business. From delivering safe drinking water to maintaining efficient water softener units and improving water quality, our solutions are designed with Texas families and businesses in mind. Serving Castroville, San Antonio, and surrounding communities, our team brings years of local expertise to every system we install, repair, or maintain.
Your Trusted Partner in Home Water Treatment Systems
Your water system should do more than just move water from point A to point B. We provide home water treatment systems that enhance comfort, protect your plumbing, and ensure that the drinking water you rely on every day is clean, fresh, and safe. Whether you’re struggling with hard water, mineral deposits, or waterborne contaminants, we’ll help you find the right solution.
Our licensed team works with the latest equipment and technologies—from RO filters and water softeners to customized filtration systems tailored to your business or household needs.
Comprehensive Water System Services
We don’t believe in one-size-fits-all. Our services include:
- Water Softener Installation & Repair – Tackle hard water, extend appliance life, and enjoy the benefits of soft water throughout your home.
- Water Heater Installation & Repair – Reliable hot water systems that ensure comfort and energy efficiency.
- Filtration & Purification – Protect your drinking water with advanced filtration solutions including reverse osmosis systems, carbon filters, and UV treatment.
- Maintenance Services – Annual inspections and tune-ups to keep your system running smoothly.
No matter the project size, we’re committed to providing excellent service and durable solutions that last.
Drinking Water You Can Trust
Poor water quality can affect everything from your skin to your coffee. That’s why we prioritize drinking water safety with filtration systems that target contaminants, odors, and bad taste.
We install RO filters (reverse osmosis) that remove up to 99% of common pollutants, making tap water safer and more enjoyable. Whether it’s for your kitchen sink or a whole-home system, our goal is to give you peace of mind with every sip.
Understanding Hard Water in San Antonio & Castroville
If you’ve lived in San Antonio, Castroville, or Medina County for long, you’ve likely dealt with hard water. It’s a regional issue caused by excessive calcium and magnesium in the water supply. Signs include:
- Soap that won’t lather
- White spots on dishes
- Buildup around faucets and showerheads
- Dull laundry and irritated skin
Our water softener services help reduce these problems by removing minerals and delivering consistent soft water—improving your comfort and protecting your plumbing equipment.
Why Soft Water Is a Smart Investment
Installing or repairing a water softener does more than provide silky showers and spotless glassware—it reduces mineral buildup, protects your water heater, and improves water flow across your system.
With regular maintenance and the right configuration, you’ll notice:
- Lower energy bills
- Longer-lasting appliances
- Fewer plumbing repairs
And since we serve both business and residential customers, we tailor our services based on your building’s unique needs.
Why Choose Five Star Plumbing?
We’re not a faceless chain—we’re your neighbors. Based in Castroville and deeply rooted in the South Texas community, we’ve built our reputation on trust, transparency, and decades of hands-on experience with regional water systems.
When you choose Five Star Plumbing, you’re working with a team that is:
- Licensed & Certified – We’re licensed by the Texas State Board of Plumbing Examiners and proudly hold certifications including NAICS #238220. We’re also a certified HUB (Historically Underutilized Business), MBE (Minority Business Enterprise), and SBE (Small Business Enterprise)—recognized for our professional standards and commitment to service excellence.
- Trained Technicians – Our crew is skilled in installing and maintaining all major brands of water softeners, filtration systems, and water heaters.
- Fast, Honest, and Local – We respond quickly, communicate clearly, and always provide transparent, upfront pricing.
- Eco-Conscious Solutions – Our installations help reduce water waste and extend the life of appliances, aligning with sustainable home practices. This supports a lower environmental impact across every process we manage.
- Service You Can Count On – From your first call to final walkthrough, we treat your home as if it were our own—with care, respect, and precision.
📞 Have a question or ready for an estimate? Call us today—your comfort, safety, and water quality are our top priorities.
Service Areas
We proudly serve:
- Castroville – including Houston Square, Alsatian Golf Club, and Castroville Regional Park
- San Antonio – from Alamo Ranch to Westover Hills and beyond
- Bexar & Medina Counties – Hondo, LaCoste, Rio Medina, Helotes
Our local knowledge helps us design water systems that meet city codes and withstand Texas’ climate.
Call Five Star Plumbing Today
Looking for a water softener, drinking water solution, or full home water treatment system? We’re here for you.
Castroville Location
2780 FM 471 N, Castroville, TX 78009
Hours: 24/7 Emergency Service
San Antonio Location
1021 Patricia Dr, San Antonio, TX 78213
Hours: Mon–Fri, 8:00 AM – 5:00 PM
FAQs – Water Systems & Softening
What difference does installing a water softener make in San Antonio homes?
It removes scale‑forming minerals, meaning softer water, longer‑lasting appliances, and better flow and pressure.
How do I know if I need a home water treatment system or just a softener?
If your goal is only to remove hardness minerals, a softener may suffice. If you’re concerned about taste, odor or other contaminants, a full water treatment system may be the right solution.
Are softened water and drinking water safe?
Yes. Softened water remains safe to drink. If sodium levels are a concern, consider pairing with an RO filter for your drinking water tap.
What typically contributes to water softener cost?
Size of home, water usage, local water hardness, equipment selected, and system complexity all influence cost. We provide an upfront estimate so you know what to expect.
Let’s Get Your System Running
If you’re ready for cleaner water, better performance, and smarter protection for your home’s plumbing system, call Five Star Plumbing today at (210) 673‑0797. We’re your local experts in San Antonio and Castroville, ready to deliver solutions customized to you, your home and your water quality goals.
With Five Star Plumbing, you get more than a system—you get a partner committed to your home’s well‑being, clean water every day, and service you can trust.