Treasure Coast Locksmith provides high-security commercial locks services in Port St. Lucie, Stuart, Fort Pierce, Vero Beach, Jensen Beach, and across the Treasure Coast. Call (772) 758-1322 for mobile service. High-security commercial locks combine Grade 1 BHMA durability with pick/bump/drill resistance and restricted keyway control. Medeco M3, Mul-T-Lock MT5+, Schlage Primus are the main options. Treasure Coast Locksmith installs for businesses requiring maximum security.
Commercial high-security locks address threats that standard Grade 1 hardware doesn't fully defeat: pick attacks, bump keys, bypass tools, and unauthorized key duplication. They combine heavy-duty commercial construction with patented security features.
The main options for commercial installations are Medeco M3 (angled pin tumbler with side bar), Mul-T-Lock MT5+ (telescopic pins with dimple keyway), and Schlage Primus (interactive sidebar). All three are restricted keyways requiring dealer authorization for key duplication.
Treasure Coast Locksmith is an authorized dealer for all three brands. We install, rekey, and cut keys for commercial high-security systems across every Treasure Coast city.
Commercial high-security benefits
- Pick resistance - defeats standard lock picks.
- Bump resistance - no known bump key attacks.
- Drill resistance - hardened inserts in cylinder.
- Restricted keyways - no unauthorized duplication.
- Grade 1 BHMA - commercial durability standard.
- Master keying support - hierarchical commercial systems.
- Audit trail on keys - manufacturer tracks duplication.
- All major brands - Medeco, Mul-T-Lock, Primus, others.
When commercial high-security matters
Specific commercial scenarios.
Real commercial high-security calls
- Law firm with confidential client records requiring maximum physical security.
- Pharmacy with controlled substance storage requiring DEA-compliant restricted access.
- Jewelry store after-hours with valuable inventory.
- Medical office with prescription medication storage.
- Financial advisor office with client financial records.
- Retail store with high-value inventory storage room.
- Tech company with server room access control.
- Government office with FIPS-compliance requirements.
Choosing commercial high-security
Commercial high-security lock selection depends on threat model, budget, and existing hardware. For businesses upgrading from standard Grade 1, Schlage Primus cylinders retrofit into existing Schlage L-series bodies at the lowest cost. For new installations or complete upgrades, Medeco M3 Maxum provides the best value.
For maximum security where cost is not the primary concern, Mul-T-Lock MT5+ offers the highest level of commercially available protection.
Restricted keyway control is the differentiator from standard Grade 1. Only authorized dealers can cut replacement keys, and every duplication is logged. This prevents scenarios where terminated employees could copy their master key at a hardware store before returning it.
Master key system design with restricted keyways is standard for larger installations. The hierarchy protects both the mechanical security (through restricted keyway) and legal control (through dealer-only duplication).
Installation process
Consultation
Call (772) 758-1322. Discuss threat model and hardware preferences.
Authorization paperwork
Complete restricted keyway owner registration.
Installation
Install commercial high-security hardware with master keying if applicable.
Documentation
Written records including key tracking information.
Commercial security tips
- Store authorization paperwork securely for future key duplication.
- Establish a key control policy documenting who holds which keys.
- Audit physical key holders annually.
- Rekey immediately if any master key is lost.
- Combine high-security physical with electronic access control for defense in depth.
- For DEA compliance, document installation per requirements.
Related services
Other Treasure Coast Locksmith services in this cluster.
Commercial high-security FAQs
Common questions about commercial high-security locks.
How much do commercial high-security locks cost?
Medeco M3 commercial cylinders: $245-$445 each. Mul-T-Lock MT5+: $295-$545. Schlage Primus retrofit: $165-$295 per cylinder.
Complete installation with Grade 1 commercial body: $395-$795 per lock.
Are these really more secure than standard Grade 1?
Yes. Standard Grade 1 is pickable by skilled attackers and bumpable with bump keys. Commercial high-security defeats both attack types.
The security improvement is measurable and meaningful for high-value targets.
Can we master key a commercial high-security system?
Yes. Medeco M3 and Mul-T-Lock MT5+ support full master keying hierarchies. Common for larger commercial installations with differential access needs.
What about key duplication control?
All three brands use restricted keyways. Authorized dealers only. Every duplication logged. Replacement keys require owner authorization paperwork.
Do we need restricted keyways if we have access control?
Good question. Access control handles most daily needs; physical high-security matters for emergency access scenarios and integrated fallback. Many commercial buildings combine both.
Can you rekey our existing commercial high-security?
Yes. Authorized Medeco, Mul-T-Lock, and Primus dealer. Rekey service with documentation and authorization verification.
What's the difference between Medeco and Mul-T-Lock for commercial?
Medeco M3 is more common and slightly more affordable. Mul-T-Lock MT5+ has more restrictive key control and slightly stronger pick resistance. Both are excellent commercial choices.
Can we add high-security to one door of a multi-door system?
Yes. Common scenario: main entry has high-security, other doors have standard Grade 1. Budget-focused approach to highest-priority doors.
Does installation affect fire door compliance?
No. High-security cylinders work within fire-rated door hardware. NFPA 80 compliance is about UL-listing of the door body and hardware grade, not cylinder technology.
How long do commercial high-security locks last?
25+ years mechanical life under normal commercial use. Longer than standard commercial hardware due to tighter tolerances and better materials.
Can we upgrade our master key system to high-security?
Yes. Rekey the existing system with high-security cylinders. Maintains hierarchy while upgrading to restricted keyway. Common upgrade service.
Do insurance companies give discounts for high-security?
Sometimes. Commercial insurance may offer discounts for verified high-security hardware installations. Check with your insurer before installation.