Licensed plumbers in San Marcos, TX
9 licensed plumbers in San Marcos, TX for emergency plumbing, leak repair and drain cleaning, from Texas license records, with phone and license numbers.
Plumbers in San Marcos with an active license, for emergency plumbing, leak repair, drain cleaning, water heaters, gas lines and toilets and faucets. Every listing comes from public license records, so you can check it before you hire.
Which licensed plumbers are based in San Marcos?
Blackstone Plumbing LLC
TSBPE Responsible Master Plumber #21452 · (512) 787-3412Apache Plumbing
TSBPE Responsible Master Plumber #36449 · (512) 353-4442Master Rooter Plumbing Services
TSBPE Responsible Master Plumber #36724 · (512) 392-9086MAG Plumbing And Services
TSBPE Responsible Master Plumber #38328 · (512) 353-4024Plumbing Engineering & Consulting
TSBPE Responsible Master Plumber #39108 · (210) 672-9255Harper Plumbing
TSBPE Responsible Master Plumber #39295 · (512) 749-8237Kelly Williams Plumbing LLC
TSBPE Responsible Master Plumber #39697 · (512) 665-7000Come And Plumbing IT LLC
TSBPE Responsible Master Plumber #41674 · (512) 213-8911KCE Mechanical Inc. DBA Reliable Air
TSBPE Responsible Master Plumber #44596 · (512) 396-8183
Showing 9 of 9.
What's different about plumbing work in San Marcos?
We found 9 licensed plumbers with a business address in San Marcos, TX in the Texas State Board of Plumbing Examiners's public license records, most of them in Hays County. Each listing shows the license number so you can check it yourself before you hire.
For scale, the Census Bureau counts 27 plumbing, heating and air-conditioning contractors with employees in San Marcos ZIP codes (2023). Many licensed plumbers are one-person shops that don't show up in that count.
The median home in San Marcos was built in 1998, 70% of households rent and 38% of homes are single-family houses, so a lot of local plumbing work is PEX and PVC plumbing, water heaters and fixtures.
San Marcos by the numbers
| Licensed plumbers listed | 9 (Texas State Board of Plumbing Examiners) |
|---|---|
| Census-counted plumbing, heating and air-conditioning contractors (San Marcos ZIPs) | 27 (Census ZBP 2023) |
| Median year built | 1998 (Census ACS 2023) |
| Households that rent | 70% (Census ACS 2023) |
| Homes heated with gas / electricity | 26% / 71% (Census ACS 2023) |
Do plumbers need a license in Texas?
In Texas, plumbers are licensed by Texas State Board of Plumbing Examiners (TSBPE) (Responsible Master Plumber, Master Plumber, Journeyman Plumber, Tradesman Plumber-Limited, Plumber's Apprentice (registration)). Ask for the plumber's TSBPE license number; the company should operate under a Responsible Master Plumber, who must carry at least $300,000 in commercial liability insurance. Cities issue plumbing permits only to licensed RMPs and inspect the work.
How can you check the license yourself?
Search the license number on the Texas State Board of Plumbing Examiners's lookup.
What can a plumber in San Marcos help with?
- Leak and burst-pipe repair
- Drain and sewer clearing
- Water heater repair and replacement
- Toilet, faucet and fixture installs
- Gas line work and inspections
- Re-piping old galvanized or lead lines
- Sump pumps and backflow devices
- Bathroom and kitchen rough-in
Questions people ask
How many licensed plumbers are in San Marcos, TX?
We found 9 licensed plumbers with a business address in San Marcos, TX in the Texas State Board of Plumbing Examiners's public license records, most of them in Hays County. Each listing shows the license number so you can check it yourself before you hire.
How do I check a plumber's license in Texas?
Ask for the license number and search it on the Texas State Board of Plumbing Examiners's license lookup. Make sure the business name and status match.
When do you need a licensed plumber in Texas?
License required for plumbing work regardless of job size; plumbing businesses work under a Responsible Master Plumber
Plumbers in other Texas cities
Sources: Texas State Board of Plumbing Examiners license records; US Census Bureau ACS 2023 5-year estimates and ZIP Business Patterns. Updated November 4, 2026.