Marin H2O Inc. & Sonoma Marin Plumbing

Marin H2O Inc. has acquired ownership of Sonoma Marin Plumbing, bringing together two trusted service teams under one unified organization. The existing Sonoma Marin Plumbing team remains in place and now works alongside the experienced plumbers and technicians at Marin H2O, ensuring continuity, expertise, and dependable service.

Together, these teams provide prompt, reliable solutions while maintaining the high standards of quality and care customers have come to expect.

A Full-Service Partner for Essential Home & Commercial Systems

Marin H2O Inc. was established as a plumbing and construction company and has since expanded to include comprehensive water treatment, HVAC, and sewer services. This growth allows customers to access a broader range of solutions from a single, trusted provider—backed by guaranteed workmanship and a commitment to exceptional service.

With one phone call, customers can access:

• Plumbing services
• Water treatment solutions
• HVAC installation and service
• Sewer installation and repair
• Construction services

This integrated approach simplifies service coordination while ensuring consistent quality across all systems.

Commitment to Quality & Reliability

Marin H2O and Sonoma Marin Plumbing remain fully committed to delivering the same high level of service customers have trusted for years—while continuing to improve, expand capabilities, and invest in long-term solutions.

From routine repairs to complex installations, every project is handled with professionalism, attention to detail, and a focus on lasting performance.

Complimentary Property Consultation

To better serve customers, Marin H2O offers a complimentary 30-minute consultation. This on-site walkthrough allows the team to evaluate existing plumbing and HVAC systems, identify potential concerns, and provide helpful insights into future maintenance or upgrade needs.

Emergency & Ongoing Service You Can Rely On

From leaky faucets and water heater repairs to full HVAC installations and seasonal maintenance, Marin H2O delivers dependable, high-quality service. 24-hour emergency service is available to ensure critical issues are addressed promptly, whenever they arise.