Whole House Water Filtration in San Antonio
& the Hill CountryA water softener fixes hardness. It does not fix what the water tastes like.
Those are two different jobs, and most people calling about a “water filter” want the second one. A whole house catalytic carbon filter takes chlorine and chloramine out at the point of entry, so every tap in the house benefits — kitchen, showers, laundry. It installs alongside the water softener, usually in the same closet, and it gets quoted on the same phone call.
Prefer email? jason.hartfelder@littleprofitwatersofteners.com or use the contact form.

Softening and filtering are two different jobs
Worth getting straight before you spend anything, because the wrong one solves nothing.
That is hardness — dissolved calcium and magnesium. SAWS reports San Antonio water at 15–20 grains per gallon. Filtration does nothing about it.
Chlorine and chloramine, the disinfectants that keep the water safe on the way to your house. Doing their job right up until the tap.
The most common call we get on this. The water softener is working exactly as designed; it was never the thing that was going to change the taste.
Neither of the above. That is iron and hydrogen sulfide, and it is usually a private well rather than city water.
A filter on the kitchen faucet treats one tap. This treats the house.
The whole house catalytic carbon filter goes in where the water comes into the building, which is why the shower and the washing machine benefit from it and an under-sink cartridge never will. It is a tank, not a cartridge — there is nothing to buy and swap out every few months.
Most of our installs put it in the same closet or garage corner as the water softener, on the same day, by the same two people. If you already own a softener we can add the filter to it — it does not have to be one of ours.
Installed together, quoted together.
Most people who call about filtration end up wanting both, because the two complaints usually arrive together: scale on the fixtures and a taste nobody likes. Doing them on the same visit is cheaper than doing them a year apart, and thewater softener pricing is published either way — $2,100 to $4,000 installed, pre-plumbed, softener only. Higher only for bringing things up to code, distance, or special circumstances.
Tell us on the phone what you are after and we will price the pair. Free water testing either way, and $25 off for military, first responders and educators.
Most older San Antonio homes have no softener loop. Text three photos — the meter looking toward the house, both sides from the sidewalk, and the garage with the door open — and Jason can usually still quote it without coming out.
Different problem and a different order of equipment. Iron and hydrogen sulfide get handled ahead of the softener — seewell water and iron removal.
Filtration across San Antonio and the Hill Country
Same service in Stone Oak and Timberwood Park, Schertz and Cibolo,New Braunfels andBoerne.See the full service area.