# Cornerstone Site Services LLC

Cornerstone Site Services LLC is a fire sprinkler company based in Round Rock, Texas. It holds an active Fire Sprinkler Certificate of Registration (Underground) (No. SCR-U-1815448) from the Texas State Fire Marshal's Office, verified against state records on October 24, 2026.

## Texas State Fire Marshal's Office registrations

| Registration | Type | Expires | Status |
|---|---|---|---|
| SCR-U-1815448 | Fire Sprinkler Certificate of Registration (Underground) | March 1, 2028 | active |

## Contact and locations

- Phone: 512-410-1843
- Primary location: 4801 University Blvd Ste 410, Round Rock, TX 78665-2059 (Williamson County)
- Licensed individuals on file: 1

## Verify

Search SCR-U-1815448 at https://appscenter.tdi.texas.gov/reports/p/sfmo to confirm current status.

More companies in Round Rock: https://plumbregistry.com/fire-protection/texas/round-rock/

_Source: Texas Department of Insurance, State Fire Marshal's Office licensee records (https://appscenter.tdi.texas.gov/reports/p/sfmo), retrieved October 24, 2026. Published by Plumb Registry._