Irvine & Orange County: Don’t Spend a Dime on a Reverse Osmosis or Home Filtration System Until You Read This.
7,500+
Happy Customers Since 1972
500+ 5/5
Customer Ratings on Google and Yelp
Most reverse osmosis and home filtration system failures happen not because the systems are bad, but because the wrong ones were installed, installed poorly, or sold with bias. We fix that.
You think your water is fine because it looks clear. But behind that “clean” look, chlorine, sediment, and hard minerals are damaging your pipes, ruining your appliances, drying your skin, and putting long-term stress on your family’s health.
Most people don’t realize how much they’re spending to live with bad water. We see it every day:
- Broken water heaters
- Corroded plumbing
- Constant repairs
- Expensive bottled water habits
- Eczema, dry skin, strange smells
These aren’t just annoying, they’re the real cost of water that doesn’t serve you.
400+
Happy Customers
5/5
Customer Rating
400+
Happy Customers
5/5
Customer Rating
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
Why Most Systems Fail (And What We Do Differently)
Most companies will only offer one or two brands of systems. That means they’re trained to push what they sell, not what you need.
We’re different. We carry nearly every major reverse osmosis and home filtration system on the market. So we don’t guess. We don’t push. We match.
Just like you wouldn’t buy a car from a dealer who only sells sedans, you shouldn’t buy a water system from someone with one option.
WHAT MAKES US DIFFERENT: Start with Truth, End with Trust.
We start with a free, done-for-you, in-home water test. We find out what’s really in your water first, before you spend a dime. Then, we match you with a reverse osmosis or home filtration system that actually fits your home, your water, and your goals.
No bias. No pressure. Just the right system, installed the right way.
Trusted Locally For Over 50 Years
Most Systems Fail Because of One Thing: Poor Advice.
We’ve seen it too many times: people stuck with water systems they can’t maintain, don’t understand, or regret buying.
That’s not how we operate.
Our job is simple: give you safe, clean water; without the stress, the surprises, or the pressure.
We don’t push products. We solve problems. No gimmicks. No upsells.
Just ethical solutions that actually work.
We Ask First. Then Build What Fits.
Everyone wants the best water system for their family. But when every company says the same thing, who do you believe?
Here’s what most people miss:
The right system isn’t just about price, it’s about fit. And the only way to find the right fit is to ask the right questions first.
That’s why we lead with listening. We don’t guess. We don’t sell blind. We uncover what matters most to you, and match the system to fit.
Because the real value isn’t just in saving money. It’s in getting it right the first time.
Systems That Last, and Work the Way They Should.
Most negative reviews in this industry trace back to one thing: systems that leak. And it’s almost always because the wrong system was installed, or it was installed the wrong way.
Leaks aren’t just annoying, they waste money, damage trust, and leave you stuck with a problem you paid to prevent.
That’s why we won’t let you spend a penny until we’ve tested your water and matched you with the right solution.
We take the time to do it right, because a high-quality system should never come with hidden costs, surprise repairs, or water on your floor.
Before you buy, let’s talk. We’ll help you avoid the mistakes that lead to regret.
What You Can Expect From McCowin Water
A reverse osmosis or home filtration system that works from day one
No leaks, no surprises, no nonsense
Friendly, expert installation
Maintenance options that fit your lifestyle
Full transparency, no pressure
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 drop you drink unfiltered puts the burden on your body.
“If you don’t filter your water, your body is the filter.”
Schedule Your Free Water Test. We serve Irvine, CA and all of Orange County. We’ll come to your home, test your water, and walk you through your best-fit options, no pressure.
Call (949) 569-5736 or schedule online now.
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.
