Direct Answer
The best septic system installation & replacement contractors in San Antonio are verified through Texas Department of Licensing and Regulation (tdlr.texas.gov). Look for companies with 4.5+ Google stars, 50+ reviews, active TX license, and at least 5 years serving the San Antonio area.
Full Explanation
Verify any San Antonio contractor at Texas Department of Licensing and Regulation (tdlr.texas.gov). Request proof of general liability insurance and workers' compensation. Ask for references from recent San Antonio projects — local experience matters for understanding permit requirements and area-specific challenges.
Local Factors in San Antonio
📍Verify license: Texas Department of Licensing and Regulation (tdlr.texas.gov)
📍San Antonio city permit office issues local permits
📍Check BBB Greater San Antonio chapter
📍Require TX state license + local city license if applicable