Yes, a plumbing license is required in Texas for almost any work on water supply, drainage, or venting systems, and the Texas State Board of Plumbing Examiners (TSBPE) is the agency that issues those licenses. The state recognizes four license tiers plus an apprentice registration, and a short list of exemptions lets certain people (most commonly a homeowner working on their own homestead) do plumbing without one.
What Work Requires a License
Anything that changes how potable water, sanitary drainage, or venting moves through a building falls under the TSBPE’s authority. That includes the obvious jobs (replacing a water heater, running new supply lines, installing fixtures, repairing a burst pipe) and the less obvious ones, like rerouting drain lines during a kitchen remodel or connecting a gas line to a water heater.
The requirement applies to residential and commercial work alike. A general contractor can’t hand plumbing tasks to an unlicensed crew member on a home addition, and a handyman advertising “minor plumbing repairs” is violating state law unless properly licensed. The board draws no line between big jobs and small ones.
Who Is Exempt
Texas Occupations Code Chapter 1301 carves out several situations where no license is required.1State of Texas. Texas Occupations Code Chapter 1301 – Plumbers The one people ask about most is the homestead exemption: a property owner can perform plumbing work on their own homestead without a license. “Homestead” has a specific legal meaning in Texas, so this does not cover a rental property you own or a vacation home, and it only applies to work you do yourself, not work you hire out.
Other exemptions include:
- In-house maintenance workers and engineers handling plumbing incidental to their job, as long as they don’t offer plumbing services to the public.
- Railroad employees maintaining plumbing on railroad premises, provided they don’t take outside work.
- Public service and utility companies working on service lines up to the point of measurement, plus related equipment.
- Appliance dealers connecting an appliance to an existing opening with an approved connector. Water heater installation and service still require a license.
- Licensed irrigators and water well pump installers doing the work covered by those separate licenses.
- Certain rural properties outside municipalities and not connected to a public water system, or in very small municipalities (under 5,000 residents in counties under 50,000) that have adopted an ordinance allowing unlicensed work. Work tied to new construction, repair, or remodeling doesn’t qualify even on otherwise exempt rural properties.1State of Texas. Texas Occupations Code Chapter 1301 – Plumbers
The rural exemption catches people out because every condition has to be met at once. When there is any doubt, check with the TSBPE before starting.
The Four License Types
The TSBPE issues four licenses, each with its own experience threshold and scope of permitted work. An apprentice registration sits below them as the entry point.
Master Plumber
The highest standard license. A Master Plumber can plan, design, and install all types of plumbing systems and supervise other licensed plumbers and apprentices. Qualifying requires a current Journeyman Plumber license (from Texas or another state) held for at least two years, or at least one year if the applicant has completed a training program approved by the U.S. Department of Labor Office of Apprenticeship.2Texas State Board of Plumbing Examiners. Master Plumber Applicants also have to pass the board’s Master Plumber examination.
Journeyman Plumber
A Journeyman installs and repairs plumbing under the general direction of a Master Plumber or Responsible Master Plumber. Eligibility requires at least 8,000 hours of experience in the trade and completion of a 48-hour training course approved by the TSBPE.3Texas State Board of Plumbing Examiners. Journeyman Plumber Holders of a Journeyman or Master license from another state have the 48-hour course waived. Applicants must pass the Journeyman examination.
Tradesman Plumber-Limited
This license limits its holder to plumbing work in one- and two-family dwellings, performed under the supervision of a Responsible Master Plumber. It requires at least 4,000 hours of experience and a 24-hour approved training course covering health and safety, current plumbing codes, and water conservation.4Cornell Law School. 22 Texas Admin Code 363.6 – Tradesman Plumber-Limited License Applicants must also hold a current Apprentice Registration or an out-of-state Journeyman or Master license.
Plumbing Inspector
A Plumbing Inspector examines installations for compliance with state and local codes and must be employed by or contracted with a political subdivision or state agency. Applicants must hold a current Journeyman or Master Plumber license from Texas or another state, or, without one of those, complete at least 500 hours of training or experience in the plumbing industry.5Cornell Law School. 22 Texas Admin Code 363.8 – Plumbing Inspector License The board will not issue an Inspector license to anyone with a financial or advisory interest in a plumbing company.1State of Texas. Texas Occupations Code Chapter 1301 – Plumbers
Plumber’s Apprentice
Apprentice Registration is the entry point into the trade. Applicants must be at least 16 years old and either a U.S. citizen or national, or otherwise eligible for state licensure.6Texas State Board of Plumbing Examiners. Apprentice Registration Apprentices work under the direct, on-site supervision of a licensed Journeyman or Master Plumber, and their hours count toward the experience thresholds for higher tiers.
Running a Plumbing Business Needs More Than a Master License
A Master Plumber license alone does not authorize its holder to run a plumbing business or take on contracts. For that, the plumber needs a Responsible Master Plumber (RMP) designation. Every plumbing company in Texas must have an RMP on record, and each RMP can serve as the designated plumber for only one company at a time.7Texas State Board of Plumbing Examiners. Responsible Master Plumber
The RMP must hold a current Texas Master Plumber license in good standing and carry at least $300,000 in commercial general liability insurance. The role covers more than plumbing skill. An RMP has to obtain all required permits, request inspections, confirm that every person doing plumbing work on the company’s jobs holds a current license or registration, ensure a licensee is physically present supervising any job site where apprentices are working, and make sure service vehicles display the company name and the RMP’s license number.7Texas State Board of Plumbing Examiners. Responsible Master Plumber
Renewal and Continuing Education
Plumbing licenses in Texas are not permanent. Holders of a Master, Journeyman, or Tradesman Plumber-Limited license must complete six hours of continuing professional education through a TSBPE-approved provider before each renewal.8Texas State Board of Plumbing Examiners. Continuing Education Overview Apprentices only need CPE if they hold an endorsement such as the Medical Gas Piping Installation endorsement, which carries its own two-hour requirement every three years.
Letting a license lapse by missing the renewal deadline or skipping CPE means the holder can’t legally perform plumbing work until it’s reinstated. Reinstatement usually involves paying outstanding fees and proving the education requirement was met, so keeping current is cheaper than catching up.
Penalties for Working Without a License
Unlicensed plumbing work carries real financial consequences. The TSBPE can impose administrative penalties of up to $5,000 per violation, and each day a violation continues counts as a separate offense.1State of Texas. Texas Occupations Code Chapter 1301 – Plumbers A week of unlicensed work on a commercial build-out could generate $35,000 in fines before anyone evaluates the quality of the plumbing itself.
Beyond fines, the board can issue formal reprimands, audit past work, and publicly disclose the names of people penalized for unlicensed activity. A licensed plumber who breaks the law can have the license suspended or revoked.
How to Verify a Plumber’s License
Ask for the plumber’s TSBPE license number before any work begins. Every licensed plumber in Texas has a unique number tied to their record. Take that number, or the plumber’s full name, to the TSBPE’s public license search tool.9Texas State Board of Plumbing Examiners. License Types
The results show the license type (Master, Journeyman, Tradesman-Limited, or Inspector), whether it is currently active or expired, and the expiration date. For a plumbing company, look up the RMP license number displayed on the company’s trucks. That number tells you who is legally responsible for the work and whether their designation is current.
Ask the company as well for a certificate of insurance showing at least the $300,000 in commercial liability coverage every RMP is required to carry. A legitimate plumbing company produces that without hesitation. A plumber who balks at providing a license number or proof of insurance is telling you to hire someone else.