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★★★★★ 4.9 / 5

1000+ Five-Star Reviews on Google, Yelp & BBB

“They secured our entire office building quickly. Highly recommend for any business!” — James R., Property Manager

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Marks USA Commercial Locksmith San Antonio

S.A. Locksmith & Security installs and services Marks USA commercial locks throughout San Antonio. Marks USA manufactures innovative commercial locks including the I-Que self-locking mortise lock, Survivor series institutional hardware, and Metro series designer locks. Serving commercial buildings across Alamo Heights, Stone Oak, The Dominion, Helotes, Converse, Schertz, Cibolo, New Braunfels, and Boerne. Call (210) 348-3677.

Marks USA Lock Services

We provide Marks USA commercial lock installation, I-Que self-locking mortise lock service, Survivor series institutional hardware, and Metro series designer lock installation for commercial, healthcare, and institutional applications.

Marks USA Services We Offer

  • Marks I-Que Lock Installation
  • Marks Survivor Series Service
  • Marks Metro Series Installation
  • Marks Lock Rekeying & Repair

Marks USA Product Lines

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Frequently Asked Questions — Marks USA

The I-Que is a patented self-locking mortise lock that automatically deadlocks when the door closes — no thumb turn or key action required. This ensures the deadbolt is always engaged, eliminating the #1 security vulnerability in commercial buildings: doors left undeadbolted.
Marks USA is a respected American manufacturer with a strong presence in institutional (healthcare, education, corrections) and New York City commercial markets. Their I-Que technology and Survivor series are unique to the industry.

Request a Commercial Locksmith

S.A. Locksmith & Security provides expert commercial locksmith services for businesses across San Antonio. From high-security locks to access control systems — we handle it all.

📞 (210) 348-3677

We Accept All Major Credit Cards

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  • 24/7 Emergency Service — commercial lockouts resolved fast
  • Licensed & Insured — Texas DPS License #B17236
  • Master Key Systems — multi-tenant & office buildings
  • Access Control — keycards, biometrics, keypads
  • Free Estimates — competitive commercial pricing

Licensed, insured, and bonded — LIC# B17236. BBB A+ Rated. Serving San Antonio since 2009. 10% Military & Veteran Discount — show valid military ID.

Need Locksmith Service? Call Now!

Available 24/7 across San Antonio. Licensed, insured, and bonded. Fast response times.

Call Now: (210) 348-3677