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Serving Santa Barbara Since 1985

Is Your Water as Pure as the Santa Barbara Coastline Should Be?

From residential filtration to industrial treatment systems, we deliver clean, safe, and great-tasting water — with the personal service our community expects.

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35+ Years Experience
5,000+ Systems Installed
100% Satisfaction Rate
Clean water treatment facility in Santa Barbara
Certified & Licensed State-approved water treatment professionals
What We Do

Comprehensive Water Treatment Solutions

Whether you need a simple home filtration upgrade or a complex industrial system, we design, install, and maintain solutions tailored to your specific water quality needs.

Residential Filtration

Whole-house filtration systems, reverse osmosis, and softening solutions that deliver clean, great-tasting water to every tap in your home.

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Commercial Systems

Scalable water treatment for offices, restaurants, hotels, and commercial buildings — ensuring compliance and consistency at every fixture.

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Water Testing & Analysis

Comprehensive water quality testing to identify contaminants, hardness, pH levels, and more — so we can recommend the right treatment plan.

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System Maintenance

Regular maintenance, filter replacements, and system tune-ups to keep your water treatment operating at peak performance year after year.

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Well Water Treatment

Specialized solutions for well owners — from iron and sulfur removal to sediment filtration and disinfection systems for safe private water.

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Emergency Repairs

Water treatment emergencies don't wait — and neither do we. Fast response times for system failures, leaks, and urgent water quality issues.

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Cater Water Treatment Plant team at work in Santa Barbara
Water quality testing equipment
35+ Years of
Excellence
About Us

Santa Barbara's Trusted Water Treatment Partner

For over three decades, Cater Water Treatment Plant has been the go-to water treatment provider for homeowners, businesses, and institutions across Santa Barbara County.

We started as a small family operation with a big mission: to make clean, safe water accessible to everyone in our community. Today, we've grown into a full-service water treatment company, but our values haven't changed. We still treat every customer like a neighbor — because that's exactly what they are.

Our team of certified technicians stays current with the latest treatment technologies, so you get solutions that are both effective and efficient. From initial water testing to ongoing maintenance, we're with you every step of the way.

Licensed & Insured Technicians
Locally Owned & Operated
Eco-Friendly Treatment Options
Transparent, Upfront Pricing
Why Choose Us

What Makes Cater Water Different

We're not just another water treatment company. Here's why Santa Barbara keeps choosing us.

01

Personalized Solutions

Every water system is different. We start with a thorough analysis of your water quality, then design a treatment plan that addresses your specific contaminants and usage needs — no cookie-cutter approaches.

02

Local Expertise

Having lived and worked here for over 35 years, we understand Santa Barbara's unique water challenges — from coastal hardness to inland well water issues. That local knowledge makes all the difference.

03

Long-Term Partnership

We don't sell you a system and disappear. Our maintenance programs and responsive support ensure your treatment system performs reliably for years — not just months.

04

Honest Advice

Sometimes you need a new system. Sometimes a simple filter change will do. We'll always tell you the truth, even if it means less revenue for us. Your trust matters more.

Testimonials

What Our Customers Say

"After moving to our home in Montecito, we noticed the water tasted off. Cater Water came out the same day, tested our supply, and had a whole-house filtration system installed within a week. The difference is night and day."

MR
Margaret R. Homeowner, Montecito

"We run a small restaurant downtown and water quality matters for both our food and our health inspections. Cater Water designed a commercial system that's been running perfectly for three years. Their maintenance visits are always on time and thorough."

DL
David L. Restaurant Owner, Downtown SB

"Our well water had a persistent sulfur smell that nobody could fix. Other companies wanted to sell us expensive equipment we didn't need. Cater Water was honest — they diagnosed the problem, recommended a simple treatment, and it's been perfect ever since."

JT
Jennifer T. Homeowner, Santa Ynez Valley

Ready for Cleaner, Safer Water?

Schedule your free water assessment today. We'll test your supply, explain what we find, and recommend the best solution — with no pressure and no surprises.

Call (805) 897-2609 Request a Quote
Contact Us

Get in Touch

Have a question or ready to get started? Reach out — we respond to every inquiry within one business day.

Address 1150 San Roque Rd
Santa Barbara, CA 93105-2025
Hours Mon–Fri: 8:00 AM – 5:00 PM
Sat: 9:00 AM – 1:00 PM

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