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Where we work

Texas-based, statewide reach

Headquartered in Austin, working the I-35 corridor daily, with dedicated phone lines for Houston and the Rio Grande Valley.

TSEC is headquartered in Austin and works the I-35 corridor daily — San Marcos, Seguin, and San Antonio are home turf, not a road trip. A dedicated Houston line covers Houston, Harris County, and the Gulf Coast; our (956) line covers McAllen and the Rio Grande Valley, and Laredo through the border corridor to Eagle Pass and Del Rio. Beyond those hubs we cover Dallas–Fort Worth, El Paso, Corpus Christi, Killeen–Temple, Brownsville–Harlingen, and Beaumont–Port Arthur — and we schedule multi-site portfolios in a single trip to keep travel off your invoice.

San Antonio Dallas – Fort Worth El Paso Corpus Christi Killeen Brownsville Beaumont Laredo Austin Houston McAllen
Regional phone line Major metro served

Metros we cover

Each metro has its own page with local permit notes, the phone line that covers it, and the suburbs we work in. Don't see your city? If it's in Texas, call — we almost certainly cover it.

Licensed and verifiable

Every license number below can be verified directly with the issuing agency.

Let's talk about your property

Call, email, or send us your project details and a licensed consultant will follow up with scope and scheduling.

Phone Austin / San Antonio: (512) 952-2757
Houston: (832) 982-2757
McAllen / Laredo / RGV: (956) 520-2757
Office2028 E. Ben White Blvd., Ste. 240-2757
Austin, TX 78741
LanguagesEnglish & Spanish

Request a project proposal

Send us the project address, scope, plans, or construction documents and we'll help determine what the environmental requirements are — then price the work.

  • Written proposal back the same business day
  • Scope, schedule, and fee — laboratory analysis included on most surveys
  • English or Spanish, whichever you prefer
Request a Project Proposal

Prefer to talk it through? Call the line for your region — a licensed consultant answers, not a call center.