How to Choose a Bathroom Remodeling Contractor in San Antonio, TX

Texas Contractor Licensing for Bathroom Remodeling in San Antonio

Texas Licensing Requirements

Texas does not have a statewide general contractor license for residential remodeling — but plumbing and electrical work within your bathroom remodel must be performed by state-licensed specialty contractors:

Plumbing: Texas State Board of Plumbing Examiners (TSBPE) licenses all Texas plumbers. Any bathroom remodel involving toilet, shower, tub, or vanity plumbing connections must be performed by a TSBPE-licensed plumber. Verify any plumbing contractor at tsbpe.texas.gov/consumer/verify-plumber-license.

Electrical: An TECL (Texas Electrical Contractor License) issued by TDLR is required for any electrical work — including adding circuits for bathroom heat lamps, exhaust fans, or GFCI outlet relocation. Verify at TDLR's licensing lookup.

San Antonio building permits: The City of San Antonio Development Services Department requires permits for: structural modifications, plumbing rough-in changes, and electrical work. Cosmetic-only remodels (tile replacement, vanity swap with no plumbing relocation) may not require permits — confirm with DSD before starting work.

Common San Antonio Bathroom Remodel Issues

Slab plumbing re-routing. San Antonio homes — most of which are slab-on-grade — often require cutting through the concrete slab (jackhammering or saw-cutting) to relocate drains when converting a tub alcove to a walk-in shower. This adds $1,500–$4,000 to a typical conversion project and is dramatically underpriced by inexperienced contractors. Confirm in writing that your bid includes slab cutting and concrete repair if any drain relocation is involved.

Water heater capacity. Older San Antonio homes with 40-gallon water heaters often can't keep up with a large master bath addition (soaking tub fill + multiple shower heads). A full master bath upgrade in SA should include a water heater assessment; many contractors recommend upgrading to 50-gallon or tankless in the same project scope.

Mold in older neighborhoods. Pre-1980 construction in neighborhoods like Woodlawn Lake, Highland Hills, and Harlandale frequently has mold behind original cast-iron tub surrounds due to decades of moisture accumulation in fiberglass or tile caulk failures. Require that your contractor include a mold inspection and mandatory mold remediation provision in the contract — and photograph all framing before it's enclosed.