About us
Why we only do one thing.
We install premium under-sink reverse osmosis systems, and that's it. One product, done in 90 minutes, for one transparent price. And for every ten installs, we put one in a St. Louis family's home for free.
Founder
A specialist business, started by someone who lived the problem.
Greg Stahl started Water Co after he had the water in his own home tested. The numbers came back deeply concerning, disinfection byproducts running well above current health-based guidelines, total dissolved solids notably high, and a handful of other things you don’t want building up in two small bodies over years. The family installed a reverse-osmosis system at the kitchen sink right away. It gave them peace of mind.
“It also allowed us to have a wonderful experience every single time we fill up a glass.”
That experience also surfaced what was missing in the category. The big national dealers will sit on your couch for an hour running chemical demos that don’t actually tell you anything useful about your water. Your local plumber will install whatever system you point at, but they aren’t water specialists, filtration is one of fifteen things they do. Neither of them is built around being the trusted answer to one specific question.
Water Co is the company we wished we’d had. Honest pricing on the website. A free, personalized report on what’s actually in your water, not a fear-based pitch. A 90-minute install by a licensed Master Plumber. A lifetime warranty on the workmanship. And a give-back program that puts a system in a family that needs it for every ten we install.
What we believe
Four values we'll fire ourselves over.
Specialists
We do one thing: install premium under-sink reverse osmosis systems. No softeners, no whole-home filtration, no shower filters. When you do one job a thousand times, you get really good at it.
Transparent
One price, right on the website, before you ever talk to us. $1,095 installed. $200 for the optional ice add-on. If your countertop needs drilling by a stone fabricator, you'll know before install day. No surprises.
Honest
We'll tell you when an RO system isn't the right answer for your home, when a competitor's product would serve you better, and when a concern you've read about online doesn't actually apply to St. Louis water.
Generous
For every 10 systems we install, the 10th goes free into a low-income St. Louis household with a young child, including 5 years of filter service. It's how we set up the business. Not a marketing campaign.
Our menu, on purpose
What we don't sell, and why.
Most companies in our space add products over time. We've decided not to. Doing one job well, and standing behind it, is the version of the business we want to run. The list below is the list we plan to keep.
| What we don’t sell | Why |
|---|---|
| Whole-home water softeners | Different system, different trade, different timeline. We'll refer you to a softener company we trust. |
| Whole-home carbon / sediment filters | Most St. Louis homes don't need one. The contaminants worth filtering are best handled at the kitchen tap, where you actually drink the water. |
| Glass or bottled-water delivery | A whole different business. We make tap water you'll want to drink, not water you have to schlep up the stairs. |
| Countertop pitchers and shower filters | Pitchers solve taste, not contaminants. Most shower-filter health claims aren't well supported by research. We'd rather not sell things we don't believe in. |
| Fluoride-removal claims, alkalizers, structured-water gimmicks | If the science doesn't hold up to peer review, we don't sell it. We stick to what's well-supported. |
If you do need one of these, we’ll happily point you to a local company we trust.
Start with the report
See your water before you decide anything.
Get a free, personalized report on what's actually coming out of your tap, drawn from your utility's most recent water-quality testing and compared to current health guidelines. No phone number required.