Security Systems
Physical visibility and controlled access
- Access control
- Security cameras
- Wireless access points for secure coverage
Business Services
Business technology and security services under one roof.
CSI TECHS provides a full business technology stack, from surveillance and access control to networking, phones, office installs, and ongoing support. Each service is separated clearly so you can get to the right solution faster.
Network Infrastructure
Core business connectivity
- Network installation
- Wireless networking
- Structured cabling
- Firewall installation
Business Operations
Workstations, offices, and support
- New office installs
- PC repair
- POS systems
- VoIP and phone systems
- Managed IT support
Access Control
Secure entry systems, credentials, controllers, maglocks, keypad entry, and facility workflows.
Learn moreSecurity Cameras
Surveillance architecture, NVRs, remote access, retention planning, and multi-site monitoring.
Learn moreNetwork Installation
Structured network builds, switching, routing, VLANs, rack work, and clean deployment paths.
Learn moreWireless Networking
Coverage planning, capacity tuning, access point design, and stable business Wi-Fi.
Learn moreNew Office Installs
Full office bring-up for phones, workstations, cabling, cameras, and connectivity.
Learn morePC Repair
Workstation troubleshooting, cleanup, replacement, malware removal, and recovery.
Learn morePOS Systems
Retail and hospitality station support, printer issues, back-office connectivity, and stability.
Learn moreVoIP & Phone Systems
Extensions, voice quality, call routing, office telephony installs, and cutover support.
Learn moreFirewall Installation
Secure edge design, remote access, policy hardening, segmentation, and branch connectivity.
Learn moreWireless Access Points
High-quality AP placement, guest SSIDs, roaming, controller setup, and wireless upgrades.
Learn moreManaged IT Support
Remote helpdesk, ongoing maintenance, endpoint protection, backups, and business continuity.
Learn moreStructured Cabling
Cat5e, Cat6, fiber, patching, terminations, cleanup, and infrastructure for growth.
Learn moreWhy Businesses Choose CSI
Clearer communication
Businesses that need cameras, access control, networking, or office systems can get to the right conversation without wasting time.
Project Advantage
More precise scoping
It is easier to explain the problem, set expectations, and start the right kind of work quickly when the service path is clear.
Service Area
Local base, broader reach
CSI San Antonio is based in San Antonio, TX and serves local businesses that need reliable security, connectivity, office technology, and ongoing support.