A profile · San Antonio

Keystone Wire & Cable

San Antonio, TX · Serves a 61-mile radius · Established 2013

✓ ★ 4.8 (30 reviews)

ETHERNET ·ACCESS CONTROL ·FIRE ALARM

Request a quote →

Illustrative photo for Keystone Wire & Cable, a low-voltage installer in San Antonio, TX — Stock imagery: illustrative of the work Keystone Wire & Cable performs. Real install photography in progress as we feature more pros.

Service area: 61-mile radius around San Antonio, TX — *Serves a 61-mile radius around San Antonio, TX.*

Serving San Antonio, Texas and surrounding areas, Keystone Wire & Cable provides professional ethernet & structured cabling installation and maintenance. Our team of certified technicians delivers reliable, code-compliant work on every project.

Owner-operator Samuel Young runs the day-to-day at Keystone Wire & Cable, working with the kind of hands-on attention to detail that's gotten the shop 30 verified reviews on WiringInstallers. After 13 years in the trade, the work speaks for itself.

4.8 out of 5 · 30 verified reviews

What they do 3 focused categories of work.

Ethernet & Structured Cabling

Cat5e, Cat6, Cat6A installation and termination for homes and businesses.

Access Control

Card readers, door controllers, and security access system wiring.

Fire Alarm & Life Safety

Fire alarm panel wiring, notification devices, and code-compliant installations.

Trained and certified 4 credentials, current as of last refresh.

State Low-Voltage License /AVIXA CTS /BICSI INST1 /OSHA 10

Verified by WiringInstallers · last refreshed June 2026.