What Do You Want to Fix?
Tap your main concern.
Common Water Quality Concerns in San Antonio
Common complaints are chlorine taste, sediment after street work, scale from hardness and fridge filter water that tastes off. A filter solves some of these. It does not solve all of them. Hardness needs a softener, and drinking water polish often needs an under-sink RO.
Sediment and Carbon Filtration
Sediment filter
Catches sand, grit and rust flakes to protect fixtures, valves and the water heater.
Carbon filter
Reduces chlorine taste and odor. Needs enough contact time and correct flow sizing.
Match filter ratings to your needs. Be careful with marketing claims. Ask for the certification a model actually holds for a given contaminant.
Main Water Supply Connections
- Choose the locationNear the main entry with room for filter changes and a drain nearby.
- Shut off and cut inWe isolate the main, cut in unions, and add bypass and isolation valves.
- Mount housingsHousings are mounted level and supported, with a pressure gauge.
- Flush and testWe flush the system, check for leaks and measure pressure before and after.
Is Whole-House Filtration Different from Softening?
Yes. A filter strains or adsorbs. A softener exchanges minerals. Many San Antonio homeowners use both in a sequence. Local forum posts also note that resin beads from a softener can clog faucet screens, which is another reason to have a proper setup.
What Affects Cost
| Factor | Effect |
|---|---|
| Filter stages | More stages cost more |
| Flow rate | Bigger homes need larger housings |
| Location | Garage or outdoor installs differ |
| Replacement cartridges | Ongoing cost to plan for |
Retail systems advertise a wide range, and professionally installed whole-house systems are quoted higher. Treat those as general ranges only.
Seasonal Filter Care
Spring
Change sediment filters after spring storm and street work.
Summer
Heavy summer use shortens cartridge life.
Fall
Schedule your fall check and replacement.
Winter
Insulate outdoor housings from freezes.
Checklists
Before we arrive
· Tip: screenshot this list.
Questions to ask
· Tip: screenshot this list.
Myths vs. Facts
| Myth | Fact |
|---|---|
| A filter removes hard water. | It does not. Hardness needs a softener. |
| More stages are always better. | Right sizing and the correct media matter more. |
| Filters last forever. | Cartridges must be changed on schedule. |
Our Estimate Process and What to Expect
- Call or text a photoTell us what you see. We tell you honestly whether it needs a visit and how urgent it is.
- Inspect and testA licensed plumber checks whole-house water filtration and explains findings in plain language.
- Written estimateScope, materials, permits and exclusions in writing. No work starts without it.
- You approveYou choose. We never start before you say yes.
- Work, test, clean upWe finish, test, clean up and walk you through what changed.
Ask for our license number and verify it at tsbpe.texas.gov. Getting two or three written quotes is smart. Compare scope line by line, not just the total.
Whole-House Water Filtration FAQs for San Antonio Homeowners
Is whole-house filtration different from water softening?
Yes. A filter removes sediment and reduces chlorine taste. A softener removes hardness minerals. Many homes use both.
Which contaminants can a specific filter remove?
It depends on the media and certification. Ask for a test and the product’s data sheet.
How are whole-house filters installed?
We cut in on the main line with bypass and isolation valves, mount the housings and flush and test.
Will a whole-house filter lower my water pressure?
A clean, properly sized filter should not drop it much. A clogged or undersized one will.
How often should I change the cartridges?
Follow the manufacturer’s schedule and your water conditions. We can set a reminder plan.
Do I still need RO for drinking water?
Many people add an under-sink RO for drinking and cooking water.
About This Page and Our Sources
- San Antonio Water System — service, pressure, backflow program, 210-704-SAWS (7297)
- U.S. EPA: Drinking Water — general drinking water information
- Texas State Board of Plumbing Examiners — verify any plumber’s license
Always check certifications for the specific contaminant you want to reduce. Costs and requirements vary by property. Nothing here replaces an on-site inspection by a licensed plumber. Stark is not affiliated with SAWS, CPS Energy or any manufacturer named here.



