Water Quality Services – Cleaner Water for Your Home & Family
San Antonio has some of the hardest water in America. Olde Town Plumbing installs and services water softeners, reverse osmosis systems, and whole-house filtration to protect your home and improve your water quality.
Understanding San Antonio Water
Why Water Quality Matters So Much in San Antonio
San Antonio’s water supply draws heavily from the Edwards Aquifer and the Carrizo-Wilcox Aquifer — both naturally high in dissolved calcium and magnesium minerals that create what we call “hard water.” While these minerals aren’t a direct health risk, their effects on your home are significant and costly.
Scale Buildup in Pipes
Mineral scale accumulates inside pipes over time, gradually reducing flow and eventually causing premature pipe failure — especially in older copper and galvanized steel plumbing.
Shortened Appliance Life
Scale reduces water heater efficiency by up to 48% and shortens appliance lifespans — including dishwashers, washing machines, and ice makers. Hard water costs the average family hundreds of dollars annually in extra energy and early replacements.
Soap & Detergent Waste
Hard water prevents soap and detergent from lathering effectively, requiring two to three times more product to get the same cleaning result — adding up to significant extra cost per year.
Skin, Hair, & Clothing
Many San Antonio residents notice dry skin, dull hair, and clothes that feel stiff or look faded after washing in hard water. The minerals interfere with moisturizer absorption and leave a residue on laundry.
Taste & Odor Issues
Beyond hardness, San Antonio tap water can carry chlorine taste, chloramines added during treatment, and occasional sulfur notes from groundwater sources — affecting the quality of drinking water and cooking.
Spots & Residue Everywhere
Hard water leaves white mineral deposits on faucets, showerheads, glass shower doors, dishes, and countertops — requiring constant cleaning and eventually causing permanent etching on glass and fixtures.
Our Water Quality Services
Complete Water Quality Solutions for San Antonio Homeowners
Olde Town Plumbing offers a full range of water quality services — from whole-home protection against hard water to point-of-use systems that deliver purified drinking water directly to your tap. Our licensed plumbers assess your water, explain your options, and install and service systems from leading manufacturers.
Whole-Home Solution
Water Softener Installation & Repair
A water softener is the most impactful investment a San Antonio homeowner can make for their plumbing system. Through an ion exchange process, a softener removes the calcium and magnesium minerals that cause hardness — delivering conditioned water to every tap, appliance, and fixture in your home.
Benefits of a Water Softener
- Eliminates scale buildup in pipes and appliances
- Extends water heater life by up to 50%
- Significantly reduces soap and detergent usage
- Softer skin and hair, brighter laundry
- Spot-free dishes, glass, and fixtures
- Protects the plumbing investment throughout your home
- May improve water heater energy efficiency by 22–29%
Our Softener Services Include
- Water hardness testing and system sizing
- New softener installation (all leading brands)
- Replacement of aging or failed units
- Repair of existing softeners (all brands)
- Annual maintenance and performance checks
- Brine tank cleaning and resin replacement
We carry and install both salt-based ion exchange softeners — the most effective solution for San Antonio’s extreme hardness — and salt-free conditioning systems for homeowners with dietary sodium concerns or water disposal restrictions. We’ll help you understand the difference and choose the right system for your household.
Drinking Water Solution
Reverse Osmosis Systems
While a water softener protects your plumbing and appliances, a reverse osmosis (RO) system takes water quality to the next level for drinking and cooking. RO systems push water through a semi-permeable membrane that removes up to 99% of dissolved contaminants — including heavy metals, nitrates, chlorine, chloramines, fluoride, and thousands of other impurities.
What RO Removes
- Heavy metals (lead, arsenic, chromium)
- Nitrates and nitrites
- Chlorine and chloramines
- Fluoride (if desired)
- Dissolved solids and sediment
- Bacteria and some viruses
- Pharmaceuticals and industrial chemicals
- PFAS/PFOA "forever chemicals"
Our RO Services Include
- Under-sink RO system installation
- Whole-house RO (commercial and residential)
- Filter and membrane replacement
- System repair and leak correction
- Water quality testing before and after
- Annual maintenance programs
- Integration with refrigerator/ice maker lines
For most San Antonio homes, we recommend pairing an under-sink RO system with a whole-home water softener. The softener protects your plumbing and extends the life of RO membranes (hard water accelerates membrane wear), while the RO system provides exceptional purity for your drinking and cooking water. Many families report drinking far more water — and far less bottled water — after making this switch.
Comprehensive Protection
Whole-House Water Filtration
A whole-house water filter (also called a point-of-entry filter) installs where the water line enters your home, treating every drop of water before it reaches any fixture, appliance, or outlet. These systems target a wide range of contaminants beyond hardness minerals — providing a first line of defense for the entire household.
Filter Types We Install
- Carbon block filters (chlorine, taste, odor)
- Sediment pre-filters (sand, rust, particles)
- Iron and manganese filters
- Ultraviolet (UV) disinfection systems
- Multi-stage combination systems
- Salt-free scale inhibitors
Why San Antonio Homeowners Choose Whole-House Filters
- Removes chlorine and disinfection byproducts from all water
- Reduces sediment that wears fixtures and valves
- Improves taste and odor of cooking and shower water
- Protects all plumbing and appliances, not just the kitchen
- Often paired with a softener for comprehensive treatment
Side-by-Side Comparison
Which Water Quality System Is Right for You?
Most homes benefit from more than one type of system. Here’s how our three primary solutions compare:
Our recommended solution for most San Antonio homes: a whole-home water softener paired with an under-sink reverse osmosis system — comprehensive protection at every point of use. With this option you’ll protect your water heater and other appliances and also get optimal drinking water at your kitchen sink.
Professional & Prompt Plumbing Service
Ready to Improve Your San Antonio Home's Water Quality?
Schedule a free water consultation with our San Antonio team. We’ll test your water, explain your options, and recommend the right solution for your home and budget.
Common Questions
Water Quality FAQ — San Antonio
How hard is San Antonio’s water, really?
Very hard. San Antonio area water typically registers between 15 and 30+ grains per gallon (GPG) of hardness, depending on the source and time of year. Water is classified as “hard” at 7 GPG and “very hard” at 10.5 GPG — San Antonio water often exceeds these thresholds by two to three times. The city’s 2024 Consumer Confidence Report is publicly available and shows current mineral concentrations in SAWS-supplied water.
Is San Antonio tap water safe to drink?
Yes. San Antonio Water System (SAWS) regularly treats and tests municipal water to meet all EPA Safe Drinking Water standards. However, meeting minimum legal standards is different from optimal taste, appearance, and comfort. Many San Antonio homeowners choose water treatment systems to improve taste, reduce disinfection chemicals, and address specific contaminants — particularly lead from older home plumbing, which SAWS treatment does not address once water leaves the main line.
How much does a water softener cost to install in San Antonio?
Water softener installation costs in San Antonio typically range from $800 to $3,000+, depending on system capacity, brand, and any plumbing modifications needed. We’ll assess your home’s water usage, pipe configuration, and hardness level to recommend a properly sized system and provide a detailed, upfront quote before any work begins.
Will a water softener affect my water pressure?
A properly sized and installed water softener has a negligible effect on water pressure. In fact, over time a softener can improve pressure by preventing the scale buildup that gradually constricts pipe interior diameter. If you’re experiencing low pressure, that’s a separate issue we can diagnose independently.
How often do reverse osmosis filters need to be replaced?
Pre-filters (sediment and carbon stages) typically need replacement every 6–12 months. The RO membrane itself usually lasts 2–3 years under normal residential use. With San Antonio’s hard water, pairing your RO system with a water softener significantly extends membrane life by reducing the mineral load the membrane must handle. We offer annual maintenance programs that include filter replacements on a convenient schedule.
Why Choose Us
What Sets Olde Town Plumbing Apart in San Antonio
State-Licensed Master Plumbers
Every job is performed or supervised by a Texas-licensed master plumber, ensuring code-compliant work that protects your home's value and your family's safety.
Upfront, Flat-Rate Pricing
We quote the price before we start. No surprise invoices, no hidden fees. You approve the cost, then we get to work.
Fast Response Times
Same day appointments are usually available and our technicians can reach most San Antonio neighborhoods in under an hour for emergency calls. We respect your time.
Satisfaction Guaranteed
We stand behind every repair and installation with a workmanship warranty. If something isn't right, we come back and make it right.
Family-Friendly Service
All our technicians are background-checked and drug-tested. We treat your home with the same respect we'd want in our own.
Locally Based
We're your neighbors — not a national franchise. Our investment is in the San Antonio community, and that shows in how we treat every customer.
Service Area
Serving San Antonio & Surrounding Communities
Our San Antonio plumbers travel throughout Bexar County, Kendall County and nearby communities. If you don’t see your neighborhood below, give us a call — chances are we serve your area.
Far North San Antonio
Northwest San Antonio
Northeast San Antonio