Business Details
50+ Years
experience
Emergency
services
Your Trusted Partner for Plumbing & Water Treatment Solutions
Marin H2O has been the trusted local partner for comprehensive plumbing and water treatment services in Marin and Sonoma Counties since 1961. As a family-owned business founded by Rick Williams, we combine decades of hands-on experience with cutting-edge technology to address both residential and commercial needs. Our team handles everything from emergency repairs to large-scale installations, supported by partnerships with industry leaders like Culligan to ensure top-quality products and solutions. We maintain full licensing and insurance while offering transparent pricing, free water analyses, and same-day service options. Our one-year labor warranty reflects our commitment to lasting solutions, and our local expertise allows us to anticipate regional challenges unique to Marin and Sonoma Counties.With in-house excavation capabilities and specialized training for complex projects, we solve problems that other companies often avoid. Our customer-centric approach prioritizes integrity, accountability, and clear communication, ensuring clients understand both the necessity and value of every service performed. This philosophy has sustained our reputation for over six decades, serving as the foundation for our 4.9-star rating across 94+ Google reviews.
Services
Water Softener Installation
Whole-House Water Filtration
Emergency Plumbing
Sewer Line Repair
Water Heater Replacement
Hydro Jetting
Leak Detection
Pipe Fusion
Commercial Plumbing
Gas Line Repair
Details
- Year established: 1961
Highlights and features
- We offer 60+ years of combined plumbing and water treatment expertise
- Our team maintains partnerships with trusted brands like Culligan for premium products
- We provide free water analyses and transparent service estimates
- Our technicians deliver 24/7 emergency response for urgent plumbing crises
- We guarantee our work with a one-year labor warranty on all services
Associations and certifications
- CA Lic #: 839817
What people say
Professional & Respectful
Experienced Plumber
Highly Responsive
Reliable & Efficient
Trustworthy & Dependable
Services
Water Softener Installation
Our water softener installations address hard water issues through customized system design and professional implementation. We assess mineral content levels during free water analyses, then recommend either salt-based or salt-free solutions tailored to household needs. The service includes equipment selection from trusted brands like Culligan, proper sizing for water usage patterns, and professional installation that integrates with existing plumbing infrastructure. This prevents scale buildup in pipes and appliances while improving water heater efficiency and extending fixture lifespan.
Whole-House Water Filtration
Whole-house filtration systems provide comprehensive water purification at the point of entry for residential properties. Our technicians evaluate contaminant types through diagnostic testing, then design multi-stage filtration solutions that remove sediment, chlorine, heavy metals, and other impurities. The service includes system component installation, pressure regulation adjustments, and performance verification to ensure consistent water quality throughout the home while maintaining optimal flow rates for daily usage requirements.
Sewer Line Repair
Sewer line repair services address damaged or blocked underground sewer connections using modern diagnostic and repair techniques. We employ video inspection technology to identify cracks, root intrusion, or collapse locations before implementing trenchless repair methods where possible. The service includes excavation when necessary, pipe replacement with durable materials, and system testing to restore proper drainage function while minimizing landscape disruption for property owners.
Hydro Jetting
Hydro jetting utilizes high-pressure water streams to clear stubborn blockages and buildup in drain and sewer lines. Our equipment delivers up to 4,000 psi cleaning force that removes grease, mineral deposits, and tree root intrusions from pipe interiors. The service includes camera inspection before and after treatment, pressure adjustment based on pipe material, and disposal of removed debris to restore optimal flow capacity without chemical treatments or invasive methods.
Emergency Plumbing
24/7 emergency plumbing services address sudden water-related crises requiring immediate intervention. Our response team handles burst pipes, sewer backups, gas leaks, and complete water loss situations with rapid dispatch and on-site problem resolution. The service includes temporary damage mitigation measures, diagnostic assessment, and permanent repair execution using fully equipped service vehicles that carry essential replacement parts for common emergency scenarios.
People
Rick Williams
Owner
Rick Williams leads Marin H2O with over 40 years of plumbing industry experience, building on family traditions of integrity and technical excellence. He oversees operations while maintaining hands-on involvement in complex projects, ensuring service quality aligns with company standards. His leadership focuses on community-based solutions and long-term customer relationships.
Franklin
Master Plumber
Franklin brings 25+ years of plumbing expertise to Marin H2O, specializing in both residential installations and commercial system maintenance. He consistently receives customer praise for clear communication, technical proficiency, and attention to detail during service calls. His experience covers all major plumbing system types found in Marin and Sonoma Counties.
Questions
What areas do you service?
We serve all of Marin County and Sonoma County, including San Rafael, Novato, Petaluma, and surrounding communities.
Do you offer emergency plumbing services?
Yes, we provide 24/7 emergency plumbing response with same-day appointment availability for urgent situations.
What water treatment systems do you install?
We install Culligan water softeners, whole-house filtration systems, reverse osmosis units, and commercial water treatment solutions.
Are your technicians licensed and insured?
All our plumbers hold active California state licenses and we maintain full liability insurance coverage.
Do you provide free estimates?
Yes, we offer free water analyses and no-obligation service estimates for all plumbing and water treatment projects.
What warranties do you offer?
We provide a one-year labor warranty on all plumbing and water treatment system installations and repairs.
