Fire alarm companies in San Marcos, Texas

3 fire alarm companies with an active Texas SFMO Fire Alarm Certificate of Registration (ACR) have a location in San Marcos, Texas, as of October 24, 2026. 3 more are elsewhere in Hays County.

Sale, installation, inspection, testing, monitoring and service of fire alarm and detection systems. Each company below holds an active Texas SFMO Fire Alarm Certificate of Registration (ACR).

Located in San Marcos

Elsewhere in Hays County

• 1st FP Services LLCSan Antonio
• Texan Fire Systems LLCWimberley
• The System ProsBuda

Also in San Marcos: Fire sprinkler contractors · Fire extinguisher companies

Frequently asked questions

How do I check that a fire alarm company in San Marcos is licensed?

Search the company name or registration number in the Texas State Fire Marshal's Office public lookup (https://appscenter.tdi.texas.gov/reports/p/sfmo). Every company listed here shows its registration numbers and expiration dates, re-checked against state records on each data refresh.

What license does a fire alarm company need in Texas?

Companies doing this work must hold a Texas SFMO Fire Alarm Certificate of Registration (ACR). Texas requires a State Fire Marshal's Office certificate of registration for each type of work: fire alarm (ACR), fire extinguisher (ECR) and fire sprinkler (SCR). Individual technicians must also hold SFMO licenses.

Does a company need to be located in San Marcos to work there?

No. Texas registrations are statewide, so companies based elsewhere in Hays County or across Texas can work in San Marcos. Confirm the service area with the company.

Listed alphabetically. No company pays to rank higher. Machine-readable: Markdown.