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
You’re in good hands when you work with Brian and his team. We’ve been working with him for 4 years and just completed our second water softener / RO machine install and he’s always thinking about what options he may have to save us money and time.
Keren Petito
Google Map Review
Unmatched customer service, professionalism, and education. I got connected with McCowin Water through Lowe’s and I am so glad I did! Brian reached out to me immediately to address my issues, wants, and needs.
Hani
Google Map Review
Joel is the tech who came over to do the installation at my house. He was on time, personable and was patient with my questions and took time to walk me through how the system works. When the installation was done, he tested it and waited for few minutes to make sure that everything was working properly.
Emmanuel Kala
Google Map Review
This company is terrific! The communication is always wonderful. They arrive when promised and provide friendly, professional service for my reverse osmosis system. Thank you!
Julie
Google Map Review
Not only were they professional and efficient during the installation, but the aftercare has been above reproach. I highly recommend McCowin for your water needs.
Rene' Vercoe
Google Map Review
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.
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.
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.
How to Get Rid of Hard Water, Chemicals, and Contaminants... Without Replacing Your Entire System.
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.
Brian & Joel were great! excited for our new system!
The team was punctual, efficient & very knowledgeable! Would highly recommend their team and services.
Shane
Google Map Review
Service at McCowin is 5+ stars from start to finish. One of the best companies I have ever worked with in any field. Our second time working with them and they are wonderful.
Michael
Google Map Review
McCowin Water has exceptional customer service. There staff are friendly, communicative and timely. Super job Joel and team!
Ana
Google Map Review
We are quite impressed by the professionalism and the punctuality of everyone we have had the pleasure to work with from McCowin Water.
Mike
Google Map Review
McCowin Blog: The Straightforward Guide to Choosing the Right Water System for Your Home.
Think Your Water’s Fine? Get It Tested. For Free.
