License: RMP-43333
Mark Vargas has been a licensed San Antonio plumber for more than 14 years and is Silverback’s Responsible Master Plumber, the person legally accountable for every permit the company pulls. Here’s what that license actually means, and why it matters for the work in your home.
Silverback Plumbing & Drain provides licensed plumbing and drain service for homes and businesses throughout the San Antonio area. From emergency repairs to routine maintenance, we diagnose the problem, explain the fix, and get it done right the first time.
Emergency service available nights, weekends, and holidays.
Proud Member of the Dynasty Trades Alliance.
Copyright © 2026 Silverback Plumbing and Drain
Mark Vargas, Responsible Master Plumber #43333 Licensed through the Texas Board of Plumbing Examiners P.O. Box 4200, Austin, Texas 78765 (800-845-6584)
