St. Louis · since 2026
One under-sink reverse-osmosis system. One transparent price. Professionally installed by a licensed Master Plumber. No contractors, no upsells.
Lifetime install warranty · Licensed MO plumber · 30-day uninstall promise.
Your report pulls measured values from your utility's annual Consumer Confidence Report and compares them to current health-based guidelines.
Three fields: first name, email, address. The lookup is instant and the PDF lands in your inbox while you're still on the page.
The report is free. The pricing is on the website. No hidden upsell, no high-pressure sales call afterward.
What's in St. Louis water
Both the City of St. Louis Water Division and Missouri American Water are in full compliance with the federal Safe Drinking Water Act. The federal limits were last updated in 1998. The science of cancer risk has moved on. The rules haven't.
Contaminant
≈102× the EWG health guideline
A disinfection byproduct linked in long-term studies to bladder cancer and pregnancy complications. Below the federal legal limit, but the federal limit was last updated in 1998.
Learn more →Contaminant
≈63× the EWG health guideline
The Erin Brockovich carcinogen. Definitively linked to cancer in occupational studies. California's public-health goal is 0.02 ppb. St. Louis tap averages roughly 1.6 ppb.
Learn more →Contaminant
9,000+ confirmed in the City
Another ~58,000 lines are still of unknown material. The CDC, AAP, and WHO agree that there is no safe level of lead for a developing child.
Learn more →Sources: 2025 Annual CCRs · EWG Tap Water Database · City of St. Louis Water Division. Health guidelines from EWG’s published methodology.
How it works
No salesperson on your couch. No quote game. Most customers go from the free water report to a booked install in under a week, all from their phone.
Enter your address. We pull the data for the utility serving your home and email a personalized one-page PDF in under 60 seconds.
A few quick photos under your sink and a short checklist. Most customers go straight to a calendar slot. If anything's unclear we ask for one more shot.
A licensed Master Plumber installs your 5-stage RO system with catalytic carbon, the brushed-nickel faucet, and the leak-detection shutoff. Lifetime warranty on the work.
What you'll pay
A premium 5-stage under-sink RO system, fully installed for $1,095. The only optional add-on is the ice-maker tie-in. That's the whole menu.
The Water Co System
A 90-minute install with a lifetime install warranty.
+$200 for the optional ice-maker tie-in. Stone-counter drilling, when needed, is billed separately by a stone fabricator at $150–$300, quoted before install day.
Start your install
The give-back program
The 10th install of every cycle goes free to a low-income St. Louis household with a young child, prioritized by neighborhoods with confirmed lead service lines. The install includes 5 years of filter service. We work with credible local nonprofits to identify recipient households, never run applications ourselves.
What customers say
These three quotes are placeholders and will be replaced with real customer stories before launch. Every install asks for an honest review. We don't gate filter shipments behind 5 stars.
“The free water report was an eye-opener. We had no idea what was actually coming out of the tap. Install was quick and the coffee tastes completely different.”
[Customer name]
Webster Groves
“Got three quotes and theirs was the only one that didn't try to sell me a softener I didn't ask for. One price, one install, done.”
[Customer name]
Chesterfield
“I work from home and refill my water bottle six times a day. I don't think about the water anymore. That's the highest praise I can give.”
[Customer name]
St. Charles
60 seconds, three fields
No phone number required. No sales call. A clean, factual report on your specific address, pulled from public utility data and current health guidelines.