Look, Your Water's Probably Fine... Until It Costs You $7,800
8,000+
Local Installs Since 1972
600+ 5/5
Five-Star Reviews on Google & Yelp
I’m Brian McCowin. Been fixing Orange County water for 53 years.
Here’s the thing about water problems. They don’t knock on your door and introduce themselves. They sneak up on you.
- Your dishwasher starts leaving spots. You say, “Must need rinse aid.”
- Your skin feels tight after showers. You say, “Maybe it’s the soap.”
- Your water heater starts making weird noises. You say, “It’s getting old anyway.”
Then one Tuesday morning, the plumber hands you an estimate. $7,800. For copper pipes that’ve been slowly corroding from the inside out.
That’s when you call me.
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 Truth About Orange County Water (That Nobody Talks About)
I’ve installed inside 8,000+ homes in this county. Irvine. Newport. Tustin. Laguna. All of them. And here’s what I find, over and over:
Your city delivers perfect water. But your pipes change everything.
Orange County has some of the best water treatment in California. The water leaving the plant? Clean, safe, perfectly balanced. But then it travels through miles of pipes. Through your neighborhood. Through your home’s plumbing. And that’s where everything changes.
The chlorine that keeps your water safe during transport? It starts working on your copper pipes the moment it arrives. Those minerals that are harmless to drink? They build up in your appliances over time.
That pressure designed to reach every home? It might be perfect for your neighbor but too high for your fixtures.
The city’s job ends at your meter. Mine starts there.
You wouldn’t expect your car to run perfectly without maintenance. You wouldn’t expect your HVAC to work forever without service. But somehow we expect our water to flow through decades-old pipes without any protection.
Call us at (949) 569-5736 or schedule your free water test today.
Why Most Water Companies Miss the Real Problem
They sell you what’s in their warehouse. Not what’s in your pipes. Orange County water treatment is world-class. The problem isn’t what’s in the water when it leaves the plant.
The problem is what happens between the treatment facility and your glass. Miles of pipes. Decades of mineral buildup. Pressure changes. Chemical reactions.
Big box stores push “one size fits all” because it’s easier. Franchise guys follow corporate scripts. Door-to-door salespeople create fake emergencies.
Me? I test first. Then I tell you what you actually need. Sometimes that’s a $3,000 system. Sometimes it’s a $300 filter. Sometimes it’s adjusting your pressure regulator for $200.
“Brian told me NOT to buy the expensive system. Saved me money. That’s integrity.” – Verified Customer
50+ Years of Fixing What Other Companies Don’t Want You to Know About Your Water.
The McCowin Method (How We've Earned 8,000+ Customers)
1. Test Everything
Not just water quality. Pressure. Flow rate. Existing plumbing. The whole picture.
2. Show You the Numbers
No mystical water wizardry. Just chemistry, physics, and the real story of what’s happening in your pipes.
3. Work WITH Your City’s Great Water
I don’t fight municipal treatment. I optimize it for your home’s unique characteristics.
4. Install It Right the First Time
50+ years of experience. Zero callbacks. Zero leaks. Zero excuses.
5. Support You for Life
Real humans. Local phone number. We’re not going anywhere.
No pressure.
No gimmicks.
No franchise drama.
We’re a local family company with 50+ years of earned trust.
Call us at (949) 569-5736 or schedule your free water test today.
The 3 Changes That Happen After Perfect Water Hits Your Pipes
The water department has done their job perfectly. But physics doesn’t stop at your front door:
1. Chlorine & Chloramines Keep Working
Great for killing bacteria during transport. Still working on your copper plumbing when it reaches your faucet.
Bleachy smell. Skin irritation. Pipe corrosion.
2. Minerals Accumulate Over Time
Safe to drink every day. But calcium and magnesium build up in your water heater and appliances over months and years.
Scale buildup. Reduced efficiency. Early appliance failure.
3. Pressure & Sediment Effects
Your city maintains consistent pressure. But your home’s plumbing has unique flow characteristics.
Iron, rust, and particulates stress fixtures and reduce appliance lifespan.
Your water department delivers quality.
Your pipes deliver the final experience.
But you’re paying for the damage… every month.
Call us at (949) 569-5736 or schedule your free water test today.
"So What System Do You Actually Recommend, Brian?"
Depends on your water and your pipes.
But here’s some of what I stock for Orange County homes:
Hague Signature Series
The workhorse. High minerals, heavy chlorine, big families. Longest warranty. Lowest waste.
Maximizer Model 97
Efficient softening and chlorine removal without the bulk. Popular in newer homes.
The Liberator
Compact, high-output powerhouse. Great for condos and starter systems.
Vertex IsoTwist
Perfect for improving taste, odor, and moderate hardness issues.
AO Smith Expert Series
Advanced contaminant removal. PFAS, VOCs, nitrates – the invisible stuff.
Call us at (949) 569-5736 or schedule your free water test today.
Why Irvine and Orange County Families Trust McCowin Water
“You didn’t send a salesman. You sent an expert.”
“Brian told me not to buy the top-tier system. He saved me money.”
“Our eczema cleared up. Our dishes sparkle. It’s night and day.”
“This is our second install in two homes. I wouldn’t call anyone else.”
What You’ll Notice Within 24 Hours of the Right System:
- Water that actually tastes clean
- Softer, brighter laundry that feels different
- Skin that doesn’t feel tight or dry after showers
- Appliances that finally work like they should
- The quiet confidence of water you can trust
Local Authority. Real Service. No Pressure.
- Irvine-based. Family-owned. Since 1972.
- 600+ five-star reviews.
- Fully WQA-certified systems.
- No franchises. No gimmicks. No guesswork.
We’re not going anywhere. And neither is our support.
Call us at (949) 569-5736 or schedule your free water test today.
So What’s the Catch?
There isn’t one. Free water test. Real results. Honest recommendations. You decide what makes sense.
No “limited time offers.” No fake urgency. No corporate nonsense.
Just water intelligence from someone who’s been solving these problems since Orange County was mostly orange groves.
90% of water filtration systems don't work for Orange County conditions. These are the ones that do.
McCowin Water Commercial & Specialty Solutions: "If Your Business Uses Tap Water... You Need to Know What We Know."
Book Your Free Water Test Today
Call us at (949) 569-5736 or schedule your free water test today.
📍 We serve Irvine + all surrounding Orange County cities
You don’t need a franchise.
You don’t need another generic filter.
You need someone who understands Orange County water AND Orange County plumbing.
Because the right system doesn’t just improve your water.
It protects your home, your health, and your peace of mind… for life.
Call us at (949) 569-5736 or schedule your free water test today.
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
Clear Water. Hidden Problems. Real Stories from the Homes We Had to Save.
Why Reverse Osmosis Filtration is a Cost-Effective Choice
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Trust McCowin Water for Reliable Orange County Water Tests
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Discover Reliable Water Hardness Testing in Orange County
Top Hard Water Treatment Systems for Your Home’s Needs
Think Your Water’s Fine? Get It Tested. For Free.
