Your water crosses 200 feet of KC limestone before it reaches your glass.
Cathcart Water designs, installs, and services whole-home filtration and softeners across the Kansas City metro — with 100% free professional installation on every new system.
Prefer to talk? Quotes over the phone — no obligation.
“Our water went from smelling like a pool to tasting like bottled water. The free installation crew was professional and done in under three hours. Wish we'd called Cathcart sooner!”
Sarah M.
Northland KC
Real review from a Kansas City homeowner.
Rated 5 stars by Kansas City homeowners
“Water went from smelling like a pool to tasting like bottled water.”
“Quote over the phone, installed the same week. No pressure, just honest service.”
“Lifetime warranty plus family-owned made this an easy choice.”
From Overland Park to Liberty — we size and install the right system for your home's water and your family's needs.
Chlorine, sediment, VOCs and taste/odor issues filtered at your main water line.
Say goodbye to Kansas City hard water — protect appliances and enjoy softer skin & laundry.
Reverse osmosis under-sink units for bottle-quality water straight from your tap.
Annual filter changes, salt refills, and system tune-ups by our local KC techs.
Every new Cathcart Water system includes free professional installation by our team. You get better water — we handle everything else.
Book Free QuoteReal reviews from real neighbors across the KC metro.
“Our water went from smelling like a pool to tasting like bottled water. The free installation crew was professional and done in under three hours. Wish we'd called Cathcart sooner!”
Sarah M.
Northland KC
“Hard water was destroying our dishwasher and faucets. Cathcart sized the right softener for our home and installed it the same week. No pressure, just honest KC service.”
Mike & Jen T.
Lee's Summit, MO
“We got a quote over the phone and the installer walked us through everything. Lifetime warranty plus family-owned made this an easy choice. Highly recommend.”
David R.
Independence, MO
“From quote to install, the whole process took five days. The water pressure is better, dishes spot less, and my skin isn't dry anymore. Best home upgrade we've made.”
Amanda K.
Parkville, MO
Drag the slider to see the transformation from basic plumbing to a professional Cathcart Water tank system.


A single, professional-grade filtration tank that treats every drop entering your home.


Twin-tank setup combining filtration and softening for complete water quality control.


Compact, organized tank installation that protects every tap from Kansas City hard water.
Every Cathcart Water system is assembled from premium components sourced from trusted American manufacturers — not overseas imports. From the control valve to the tank, carbon, and resin, we know exactly where every part comes from.

Everything you need to know about free installation, quotes, and what comes next.
Every new Cathcart Water system includes full professional installation by our licensed KC technicians — plumbing connections, bypass valve, leak check, and system startup. It's a $500+ value we include at no charge.
No. Your quote is completely free and comes with no obligation. We'll review your water needs and recommend the right system with clear, upfront pricing.
A Cathcart Water specialist will follow up immediately to learn about your home, answer questions, and provide a free quote over the phone.
Most installations are scheduled within the same week of quote approval. We keep popular systems in stock so you can start enjoying cleaner water fast.
Yes. Every new Cathcart Water system is backed by our lifetime warranty on the core filtration equipment when we install and service it. Specific terms are reviewed during your quote.
We serve Kansas City and surrounding areas including Overland Park, Liberty, Independence, Olathe, and beyond. Not sure if you're in our service area? Just ask.
Every Cathcart Water system comes with clear, honest warranty protection.
At Cathcart Water of Kansas City, we take pride in the quality and craftsmanship of our water treatment systems. The following limited warranties apply to the original purchaser of each system.
Lifetime
System dry parts — mechanical and non-consumable components that do not contact water.
5 Years
Control valve, circuit board, and filtration media.
1 Year
Labor — issues arising from the original installation from date of purchase.
Tell us a bit about your home and water, or call us directly. A Cathcart Water specialist will follow up immediately with a free quote over the phone.