Business Details
50+ Years
experience
Emergency
services
Your Trusted Partner in Water Quality & Plumbing Since 1961
Marin H2O has been a trusted local partner in plumbing and water treatment since 1961, serving Marin and Sonoma Counties with a commitment to integrity and excellence. Founded by Rick Williams, who learned the trade from his grandfather, our family-owned business combines decades of hands-on experience with cutting-edge technology to address both residential and commercial needs. Our in-house capabilities span emergency repairs, large-scale installations, and specialized water treatment solutions through partnerships with industry leaders like Culligan. We prioritize transparency, offering free water analyses and no-obligation quotes, while backing our work with a one-year labor warranty.Our team of fully licensed and insured technicians is dedicated to solving problems efficiently, leveraging local expertise to navigate Marin County's unique infrastructure challenges. With same-day and emergency services available, we ensure prompt, reliable solutions that protect properties and improve quality of life. Customer satisfaction remains our top priority, as evidenced by our 4.9-star rating from over 94 Google reviews.
Services
Plumbing Services
Water Treatment
Emergency Plumbing
Gas Line Repair
Sewer Video Inspection
Water Heater Replacement
Hydro Jetting
Pipe Fusion
Leak Detection
Commercial Plumbing
Details
- Year established: 1961
Highlights and features
- We offer 100% free quotes with no-obligation consultations.
- Our team provides same-day and emergency appointments whenever possible.
- We prioritize local expertise with decades of Marin County experience.
- All work is backed by a one-year labor warranty.
- Our fully licensed and insured technicians ensure professional results.
Associations and certifications
- CA License #839817
What people say
Professional & Respectful
Highly Responsive
Reliable, Honest & Efficient
Experienced Plumber
Prompt Service
Services
Plumbing Services
Marin H2O provides comprehensive plumbing solutions for residential and commercial properties. Our licensed technicians handle everything from routine maintenance to complex installations, including gas line repairs, sewer line replacements, and hydro jetting. We utilize advanced diagnostic tools and excavation equipment to address underground utilities and large-scale projects that exceed typical residential service limits. With a focus on long-term reliability, we offer same-day emergency appointments and back all work with a one-year labor warranty.
Water Treatment
Our water treatment services improve quality for homes and businesses through customized solutions. We install and maintain de-ionized water systems, whole-house filtration units, and water softeners, partnering with trusted brands like Culligan. Each project begins with a free water analysis to identify contaminants and mineral imbalances. Our technicians design systems that address specific issues like hard water, bacterial contamination, or chemical pollutants, ensuring safer drinking water and extended plumbing system lifespan.
Emergency Plumbing
Marin H2O responds to urgent plumbing crises 24/7, including burst pipes, sewer backups, and gas line leaks. Our fully equipped service vehicles carry essential parts and tools for immediate repairs, minimizing property damage. Technicians use diagnostic equipment to quickly identify issues and implement permanent fixes. We prioritize rapid response times in Marin and Sonoma Counties, with decades of experience handling high-pressure situations that require coordinated solutions beyond standard residential capabilities.
Sewer Video Inspection
We employ advanced sewer video inspection technology to diagnose underground pipe issues without destructive excavation. This non-invasive method identifies blockages, cracks, or root intrusions in sewer lines, allowing precise repairs. Our technicians use the findings to recommend targeted solutions like trenchless pipe replacement or hydro jetting. This service reduces costs and disruption while ensuring accurate problem resolution for residential and commercial properties.
Gas Line Repair
Marin H2O offers installation, repair, and maintenance for natural gas lines in residential and commercial settings. Our licensed technicians handle both indoor and outdoor gas line projects, including leak detection and pressure testing. We use specialized equipment to safely address gas line emergencies and ensure compliance with safety regulations. Services extend to complex installations for new construction or remodeling projects requiring gas-powered appliances.
People
Rick Williams
Owner
Rick Williams leads Marin H2O with over 60 years of family legacy in plumbing. He grew up working alongside his grandfather, learning core values of honesty and integrity that shape the company's approach today. Rick oversees operations while maintaining a focus on community service and technical excellence.
Franklin
Plumber
Franklin is a highly experienced plumber known for his reliability and technical expertise. He specializes in toilet installations, tankless water heater maintenance, and clear communication with clients about repair processes. Customers consistently praise his professionalism and attention to detail.
Questions
What areas do you serve?
We proudly serve Marin County and Sonoma County, including San Rafael and surrounding communities.
Do you offer emergency services?
Yes, we provide same-day and emergency plumbing appointments whenever possible.
What plumbing services do you offer?
Our services include gas line repair, sewer line replacement, hydro jetting, water heater replacement, and both residential and commercial plumbing.
Are your technicians licensed and insured?
Yes, all our technicians are fully licensed and insured for your protection.
What water treatment options are available?
We offer whole-house filtration, water softeners, de-ionized systems, and customized solutions through partnerships with brands like Culligan.
Do you provide free estimates?
Yes, we offer 100% free, no-obligation quotes for all our services.
Reviews (5)
Cory Chamberlain
Jan 13, 2022
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Marin H20 was fantastic! I was able to get them to install my new faucet/vanity within a day or two of calling for a quote/appointment. The phone and in-person service was great and the work looks even better, thanks again! Service: Faucet installation
Meredith Allen
Jul 19, 2021
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They came recommended from a friend. We had just run our first load of laundry in our new washing machine and the area flooded -- the outflow drain was clogged. We have a newborn and do a lot washing. These guys sent out someone the next morning. Kevin was fantastic! Super professional, really nice guy, and got the job done in an hour or so! And we are back to washing! Will be calling them again.
Heather Formby
May 26, 2021
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If you are searching for an honest, professional, and knowledgeable sewer lateral company.look no further than Marin H2O! Kenny gave me a quote for our sewer lateral that was very fair and even informed me that I could apply for a Ross Valley grant that would save me money. He took care of all of the permits and filled out the grant for me. The first day of the project we learned that we shared a sewer lateral with our neighbor which was not disclosed to us when we bought our home. Kenny was so professional and took the time to explain to our neighbor where the sewer line crossed his property and even measured it out for both of us to see on a map. Kenny and his team were on time every day and were very polite and professional. I will definitely be using Marin H20 for all future projects! A++ service!
Tina Jennings
Nov 28, 2020
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Kevin is very kind. He is also professional and efficient and knows plumbing! We love the service from Marin H2O! Services: Water heater repair, Water heater installation
Becketcolombo
May 21, 2020
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Marin H2O is highly responsive. Our job was scheduled immediately. The staff showed up promptly, completed the installation quickly and neatly. We just got the bill and it was a fraction of what another plumbing company wanted to charge us for the same work. Could not be more satisfied--this is our third experience with the company and it's very consistent.
