About Us
Good Neighbor H2O is a trusted water purification company in San Diego County, delivering advanced whole-home water filtration solutions to health-conscious homeowners who value wellness, home protection, and long-term performance. Based in Vista and serving North San Diego County, we believe clean, safe, great-tasting water should be a standard—not a luxury.
Our patented, low-maintenance systems go far beyond traditional water softeners. They remove contaminants down to 0.001 microns—including chlorine, PFAS, and microplastics—while improving the longevity of plumbing and appliances. Every installation includes an alkaline reverse osmosis (RO) unit that enriches drinking water with calcium, magnesium, and zinc to support hydration, skin health, and daily well-being.
What sets us apart is not just our technology, but how we deliver it. As a family-owned business, we handle every part of the process ourselves—from in-home water testing to installation—ensuring accuracy, accountability, and lasting support. There are no subcontractors, upsells, or surprise costs. Just clear pricing, flat-rate installs, and a commitment to treating your home with the same care we give our own.
We live in the communities we serve. We drink the same water. And we’re here to make sure yours is clean, balanced, and built for lasting value.
Our Mission
As a water purification company in San Diego, our mission is to make clean, mineral-rich water accessible in every home by delivering reliable, health-focused water filtration solutions. We are committed to removing harmful contaminants, improving daily wellness, and protecting household systems through honest service, transparent pricing, and long-term local support.
Read Our Comprehensive Water Filtration Guide
Uncover the immense value of our whole-home water filtration systems. Learn about the health benefits, convenience, and cost-effectiveness of our innovative self-cleaning technology. Don't miss the opportunity to make an informed decision for your family's well-being.
read our guideRyan Simpson
Hello, I’m Ryan Simpson, the founder of Good Neighbor H2O. My passion for water purification began over a decade ago when I realized the importance of providing clean water to families for their health and well-being. With extensive experience in the water purification industry, I have dedicated my career to solving the challenges faced by homeowners in San Diego County. At Good Neighbor H2O, we pride ourselves on being leading water filtration experts, offering innovative water technology that ensures safe, pure water for every household. I invite you to explore our solutions and experience the difference we can make in your home.
Why Choose Good Neighbor H2O?
As a trusted water purification company in San Diego, we deliver more than just clean water—we provide health-focused, long-lasting water filtration solutions. Our proprietary system combines sediment filtration, cross-bonded carbon resin, and alkaline reverse osmosis to remove microplastics, chlorine, and forever chemicals that affect your skin, hair, and long-term health. Unlike national chains, we offer transparent flat-rate pricing with flexible financing. As a trusted water purification company in San Diego, we install every system ourselves and offer lifetime support. Our water filtration solutions also help protect your plumbing and appliances from scale and damage.
"Good Neighbor H2O transformed our home’s water quality. We couldn’t be happier with the eco-friendly system and the peace of mind it provides."
Sarah L., Carlsbad
"The self-cleaning water system from Good Neighbor H2O is a game-changer. It’s low maintenance and incredibly efficient, perfect for our busy lifestyle."
Mark T., Encinitas
"We love the personalized service and expertise from Good Neighbor H2O. Our family feels safer knowing we have clean, pure water every day."
Emily R., Solana Beach
Good Neighbor H2O is a water purification company that offers premium whole-home water filtration solutions throughout San Diego, Vista, Carlsbad, Encinitas, Solana Beach, Del Mar, and Rancho Santa Fe.