Customer reviews
What Columbus homeowners say about us
Verified customers from across Columbus and Central Ohio. We let the results speak for themselves.
Verified reviews
The end of hard water and scale
Our water tested at 21 grains per gallon. White scale was caked around every faucet. Cardinal installed the Premier Series in about three hours, and within a month the scale stopped forming and our glassware came out spotless.
David R.Dublin, Ohio
We replaced a 12-year-old name-brand softener that gave us constant repairs. The Kinetico Signature Series has run 14 months without a single issue. What sold me was the non-electric design, and our salt usage is noticeably lower.
Mark T.Westerville, Ohio
My water heater failed at eight years old, and the plumber said scale was a major factor. Cardinal tested our water at 19 gpg and installed the Premier Series within days. My new heater's first-year energy use was noticeably lower.
Tom G.Hilliard, Ohio
Verified reviews
Iron, sulfur, and stained fixtures, solved
We have a private well and fought orange staining on toilets, sinks, and laundry for years. Cardinal tested our water, found iron at 4.2 ppm, and installed a Kinetico iron filter with a softener. The staining stopped completely.
Samantha K.Johnstown, Ohio
Our well water had a constant sulfur smell, worst in the hot water. Cardinal found elevated hydrogen sulfide and hardness at 18 gpg, then installed a sulfur guard filter with a twin-tank softener. The smell was gone within days.
Jennifer L.Granville, Ohio
I compared three companies. The others pushed the most expensive option right away. Cardinal tested my water first and recommended a system sized for a two-person home. Seventeen months later, no service calls and no issues.
Chris B.Gahanna, Ohio
Verified reviews
Better-tasting water at the kitchen sink
I bought bottled water for two years because I did not trust our tap. The K5 went in under my kitchen sink in under an hour. The difference in taste was immediate, and I have not bought a single bottle since.
Anna M.New Albany, Ohio
We added the K5 about six months after our softener, and it was the best follow-up decision we made. We use it for drinking and cooking, and the annual filter change last year took about five minutes.
Rachel H.Powell, Ohio
The Cardinal representative walked me through the K5's NSF certification documentation, which I appreciated. The installation under the sink was clean and compact, and the water tastes genuinely better, not just marginally so.
Patricia W.Upper Arlington, Ohio
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