Family-owned & locally operated
About Cathcart Water of Kansas City
Family-owned and locally operated, proudly serving the Kansas City metro from our home base in Parkville, MO. We design, install, and service whole-home water treatment with one promise that never changes: free professional installation on every new system, backed for life.
Financing availablePay over time with monthly financing through Klarna.
Financing available with Klarna →Monthly financing through Klarna issued by WebBank, member FDIC. Subject to credit approval. Other CA resident loans made or arranged pursuant to a California Financing Law license. NMLS # 1353190.

MEET YOUR LOCAL OWNER
Keegan Cathcart, Owner of Cathcart Water
I'm Keegan Cathcart—a husband, father, and proud Northland native. I graduated from Park Hill High School and Missouri Western State University, and Kansas City has always been home.
At our family-owned company, Cathcart Water, I help local families find the right water system for their homes with honest advice, straightforward pricing, and service you can count on. When you reach out, you're talking to a neighbor who takes pride in earning your trust and being there long after installation.
— Keegan Cathcart
Book a Free In-Home Water TestOur story
A Kansas City family business
Cathcart Water was built on a simple idea: Kansas City homeowners deserve clean, soft water without the high-pressure sales tactics the water-treatment industry is known for. We're a family-owned and locally operated company, and we answer the phone ourselves.
We've been serving the Kansas City metro for [confirm years in business], and in that time we've learned exactly what KC water does to a home — the limestone hardness, the chloramine taste, the sediment from aging mains — and how to fix it right the first time. Every system we install is built with American-made components and backed by a lifetime warranty on the parts that don't contact water.
We're licensed and insured with KC-based technicians — not subcontracted labor. When you call, you get a local team who knows your neighborhood, your water, and your home.
Our promises
What every Cathcart customer gets
The guarantees we keep on every system, every time. No fine print, no pressure.
- 100% FREE professional installation on every new system ($500+ value)
- Lifetime warranty on every new system
- Manufacturer-backed warranties
- Transparent pricing, no high-pressure sales
- No-obligation quotes — quotes over the phone available
- Same-week installation
- Family-owned and locally operated
What customers say
Reviews from across the metro
“The chlorine smell in our shower is completely gone. My skin stopped itching within a week. The install crew was in and out in a morning and left everything spotless.”
“The scale on our shower glass is gone and our towels are actually soft now. We didn't realize how hard our water was until it wasn't. Install was free and the crew was professional.”
“We cancelled our bottled water delivery the week the RO went in. The water tastes better than anything we were buying. The tankless unit fit perfectly under our small sink.”
Ready for cleaner water?
(816) 298-0839Free quotes over the phone. Same-week installation across the Kansas City metro.
