A Tradesman license requires 4,000 supervised hours; a Master Plumber license requires years more on top of that. That licensing process is also exactly what protects you if something goes wrong. Here’s how Texas plumbing licenses work, and why hiring around them rarely turns out well.
A Tradesman license requires 4,000 supervised hours; a Master Plumber license requires years more on top of that. That licensing process is also exactly what protects you if something goes wrong. Here’s how Texas plumbing licenses work, and why hiring around them rarely turns out well.
Texas plumbing licenses are issued and regulated by the Texas Board of Plumbing Examiners. A Tradesman license requires 4,000 supervised hours plus 24 hours of approved training; a Master Plumber license requires at least four years as a Journeyman first. Most licensed plumbing companies, including Silverback, carry at least $1,000,000 in liability insurance, well above the $300,000 minimum required of a Responsible Master Plumber.
You can verify any plumber’s license directly through the Texas Board of Plumbing Examiners before you hire them, and it takes about a minute.
How Plumbing Licensing Actually Works in Texas
Every plumber operating legally in San Antonio and the rest of Texas is certified by the Texas Board of Plumbing Examiners, after completing supervised hours, approved training, and written and hands on exams. There are four tiers, and each one allows progressively more independent and complex work.
| License | Allowed to work on | Core requirements |
|---|---|---|
| Tradesman Plumber | Single and two family homes only | 4,000 supervised hours, 24 hours approved training, written and hands on exam |
| Journeyman Plumber | Residential and commercial | 8,000 supervised hours, 48 hours approved training, written and hands on exam |
| Master Plumber | All systems, can supervise apprentices | Minimum 4 years as a Journeyman, written exam plus engineering and planning tasks |
| Responsible Master Plumber | Owns or operates a licensed plumbing business | Active Master Plumber license, minimum $300,000 commercial liability insurance |
Every Silverback technician holds the appropriate license tier for the work they perform, and the company’s Responsible Master Plumber is owner Mark Vargas, license #43333. You can read more about what that designation specifically means in our Responsible Master Plumber profile.
What a License Actually Protects You From
The licensing process exists because plumbing mistakes are expensive and sometimes dangerous, not as a bureaucratic formality. Here’s what it’s actually doing for you as a homeowner.
Insurance and liability
Licensed plumbers carry liability insurance; Silverback carries at least $1,000,000. Most homeowners’ insurance policies will not cover damage caused by unlicensed work, so a cheap handyman fix can become an uninsured loss if it fails.
Permits and inspections
Many plumbing jobs legally require a permit and inspection. A licensed plumber handles that paperwork and the inspection itself, so the work is documented and compliant rather than something you’d have to disclose, or fix, when you sell the home.
Code compliance and safety
Plumbing code exists to prevent gas leaks, pipe failures, and water contamination. A license means someone has been independently tested on that code, not just on how to make a fix look finished.
Accurate diagnosis
Licensed plumbers are trained to find the actual cause of a problem rather than patch the symptom, which is the difference between a fix that lasts and the same leak coming back in three months.
What Actually Happens When You Hire Around a License
Unlicensed work usually looks fine on the day it’s done, which is exactly the problem. The real cost tends to show up later: a homeowners’ insurance claim gets denied because the work wasn’t permitted, an inspection during a home sale flags unpermitted plumbing and stalls the deal, or a corner cut on code compliance turns into a slab leak or gas issue down the line. None of that shows up on the invoice for the original job.
How to Verify a Plumber’s License Before You Hire
- Ask for their license number and tier (Tradesman, Journeyman, Master, or Responsible Master Plumber) directly.
- Look up that license through the Texas Board of Plumbing Examiners’ public license search to confirm it’s active.
- For a company performing the work, ask who their Responsible Master Plumber is and confirm that license too.
- Ask whether the company carries liability insurance, and how much, before any work starts on your home.
Frequently Asked Questions About Hiring a Licensed Plumber
How can I check if a plumber is licensed in Texas?
Ask for their license number and look it up through the Texas Board of Plumbing Examiners’ public license search. It takes about a minute and confirms whether the license is active and what tier it is.
What’s the difference between a Tradesman and a Journeyman plumber?
A Tradesman Plumber can only work on single and two family homes after 4,000 supervised hours. A Journeyman Plumber can work on residential and commercial properties after 8,000 supervised hours and additional commercial code training.
Does homeowners insurance cover damage from unlicensed plumbing work?
Usually not. Most homeowners’ insurance policies exclude damage caused by unlicensed or unpermitted plumbing work, which means a failed DIY or handyman fix often becomes an uninsured loss.
Do all plumbing jobs require a permit in San Antonio?
Not every small repair does, but many installations and system changes do require a permit and inspection. A licensed plumber will tell you which category your job falls into and handle the paperwork if one is required.
Is it ever okay to use a handyman instead of a licensed plumber?
For truly minor tasks, maybe. For anything involving permits, gas lines, water heaters, or system changes, no. The savings on the invoice are usually small compared to the risk of an insurance denial or a problem hidden behind a wall.
Hire a Licensed, Insured Plumbing Team
Every job at Silverback runs through a licensed plumber, under a Responsible Master Plumber carrying real insurance, not a guess.
Call (726) 895 9998