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You Think Your Water’s Fine… Until the $7,800 Leak, the Rash That Won’t Go Away, or the Fourth Broken Appliance

8,000+

Local Installs Since 1972

600+ 5/5

Five-Star Reviews on Google & Yelp

Irvine & Orange County’s Trusted Authority in Reverse Osmosis, Water Softener Replacement, and Whole-Home Filtration Systems, Since 1972

Before You Spend a Dime, Test Your Water First

Most systems don’t fail because they were built wrong. They fail because they were sold wrong.

  • The filter doesn’t match your actual contaminants
  • The pressure isn’t calibrated for your home’s PSI
  • The system’s too weak… or too aggressive… and no one tested it

 

What “Clean” Water Is Really Costing You

Just because it looks clear… doesn’t mean it’s not wrecking your home from the inside out.

Every week we see problems like:

  • Burned-out water heaters choked with scale

  • Mold blooms from pinhole copper leaks

  • Dishwasher & laundry breakdowns from mineral buildup

  • Skin flare-ups from chlorine and chloramine

  • Strange smells that plumbers can’t explain

  • $100/month bottled water habits just to feel safe

This is what unfiltered, untested, and mismatched water systems are doing in Irvine and Orange County… quietly, daily, expensively.

400+

Happy Customers

5/5

Customer Rating

8,000+

Local Installs Since 1972

600+ 5/5

Five-Star Reviews on Google & Yelp

Brian McCowin using water testing kit.
Play Video about McCowin Water team posing in front of company headquarters, showcasing our expert staff responsible for reverse osmosis and home water filtration system innovations.

The Three Killers in Your Tap

1. Chlorine

  • Breaks down copper pipes

  • Strips natural oils from skin

  • Dulls and fades clothing

2. Sediment

  • Slams into appliances

  • Blocks water flow

  • Breaks valves and seals

3. Hard Minerals

  • Scale on fixtures

  • Heating element failure

  • Bitter water taste

If your system isn’t built to fight these, it’s not protecting you.

Our Process: Honest Testing. Matched Systems. Built for Irvine and Orange County.

Before we install a single thing:

  • We test your actual water, pressure, and mineral load

  • We identify what’s in your pipes and what’s wearing them down

  • We recommend the right filtration, softening, or RO system; backed by data, not commission

  • We install it cleanly, correctly, and calibrated to last

No Pressure. No Gimmicks. No Callback Headaches.

50+ Years of Fixing What Other Companies Don’t Want You to Know About Your Water.

McCowin Water technicians using advanced diagnostic tools to optimize a whole house water softener system, demonstrating their expertise and innovation.

Why Most Systems Fail (and Ours Don’t)

Most companies sell one or two systems. So guess what they recommend? One of those.

We stock every major RO and filtration system. That means we don’t push. We don’t guess. We match.

Would you trust a shoe store that only sells size 10s? Then why buy a water system that wasn’t made for your home?

What You Can Expect from McCowin Water

  • A real conversation, not a sales pitch

  • A free in-home test to see what you’re actually drinking

  • A system that’s matched to your water, not a shelf

  • Clear pricing, honest answers, and zero pressure

  • Licensed install with no leaks, no mess, no callbacks

  • 50+ years of support, insight, and earned trust

You’re not just buying a water system. You’re securing every faucet, appliance, and drop of water your family touches.

McCowin Water technician conducting a quality check on a newly installed whole house water filtration system, exemplifying exceptional service.

Systems That Work. Service That Lasts

We don’t leave until your system works perfectly. We don’t guess. We don’t upsell. We don’t disappear.

We install for longevity, not repeat business.

And it starts with a free test:

👉 Call us at (949) 569-5736 or schedule your free water test today.

What You Can Expect From McCowin Water

  • A real conversation, not a sales pitch.
  • A free in-home water test, so you know exactly what you’re dealing with.
  • A system that’s matched to your home, not picked from a shelf.
  • Honest answers, clear pricing, and zero pressure.
  • Professional installation done right the first time. With no mess, no leaks, and no callbacks.
  • Long-term support from a local team that’s been protecting homes in Orange County since 1972.
  • Because when it comes to your water, clarity shouldn’t just be the goal, it should be the standard.

Why 90% of Water Filtration Systems Don’t Work. These Are the Ones That Do.

HAGUE SIGNATURE SERIES

Hague Model 97 Maximizer

Hague HC3-25CX Water Softener System for Orange County Homes - McCowin Water

Hague Hydroclean HC3

Vertex IsoTwist

The Liberator

LC Reverse Osmosis

AO Smith Specialized Water Solutions

AO Smith Expert Series RC Softeners

How to Get Rid of Hard Water, Chemicals, and Contaminants... Without Replacing Your Entire System.

Commercial Systems

Alkaline Systems

Bottle-less Coolers

Interior view of McCowin Water showroom in Irvine, California, displaying advanced home water filtration systems and reverse osmosis solutions.

Why Waiting Costs More

Every month you wait, your water keeps doing damage.
Hard water shortens appliance life.
Chlorine eats copper.
And every unfiltered drop you drink puts the burden on your body.

“If you don’t filter your water, your body is the filter.

👉 Call us at (949) 569-5736 or schedule your free water test today.


We serve Irvine and all of Orange County.
We’ll come to your home, test your water, and walk you through your best-fit options, with zero pressure and total clarity.

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Think Your Water’s Fine? Get It Tested. For Free.


Brian McCowin standing at the entrance of McCowin Water headquarters in Irvine, California, welcoming visitors to explore innovative water filtration solutions.
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