San Marcos Service
San Marcos Water Utility
All testing is completed by TCEQ-licensed technicians and submitted through Central Texas’ official backflow reporting systems such as:
ECT.
H2O & Backflow Tests provides certified, reliable backflow testing throughout San Marcos, Texas.
About San Marcos, Texas
San Marcos, Texas sits between Austin and San Antonio and is known for its steady growth, strong student population, and mix of residential, commercial, and institutional properties. Home to Texas State University and a wide range of apartments, restaurants, retail centers, and businesses, San Marcos has significant demand for regulated plumbing and water safety services.
Many properties in San Marcos rely on irrigation systems, and commercial plumbing connections that require certified backflow prevention assemblies. Annual backflow testing helps ensure these systems are operating correctly and meeting local and state water quality regulations designed to protect the public water supply.
With continued development throughout the city and surrounding areas, San Marcos property owners depend on licensed backflow testing professionals to maintain compliance and avoid service interruptions. H2O & Backflow Tests proudly serves San Marcos with dependable, certified backflow testing for homes, businesses, and multi-property sites.
Schools We Serve in San Marcos
Popular & High-Traffic Areas in San Marcos
Neighborhoods We Serve in San Marcos
We provide backflow testing for every major neighborhood, new development, and student-housing area in San Marcos, including:
Why San Marcos Residents Trust H2O & Backflow Tests
- Same-day and next-day service
- Clean digital documentation
- Automatic submission to BSI or VEPO
- Clear, honest pricing with zero upselling
- Trusted by HOAs, apartments, student housing, inspectors, and local homeowners
Fast, accurate, and compliant — San Marcos’ most dependable backflow testing service.