Freeze aftermath: Plumbing and insurance claim mistakes to avoid Unlicensed plumbers, general contractors or DIY approaches may cause more costly damage Tags: HOUSTON – The state of Texas has 60,000 licensed plumbers and the challenge they are all facing is “overwhelming,” according to Frank Denton, the Chairman of the Texas State Board of Plumbing Examiners. No doubt, the repair process is a daunting task. Last week’s tens of thousands of homes and businesses were impacted during the historic freeze, forcing plumbers to the front lines once again. However, the aftermath of this storm is much different from Hurricane Harvey. In fact, every plumber KPRC 2 Investigates spoke with says it’s much worst because of damage suffered in every region of the state.