Treasure Coast Locksmith provides commercial deadbolt installation services in Port St. Lucie, Stuart, Fort Pierce, Vero Beach, Jensen Beach, and across the Treasure Coast. Call (772) 758-1322 for mobile service. Commercial deadbolt installation uses Grade 1 BHMA hardware with 1-inch throw minimum, hardened bolts, and reinforced strikes. Common brands: Schlage B660P, Medeco Maxum, Mul-T-Lock Hercular, Yale 1900. Installation includes heavy-duty strike with 3-inch screws into frame backing for maximum security.
Commercial deadbolts provide additional security beyond the main lockset latch. Grade 1 deadbolts like Schlage commercial models feature 1-inch minimum bolt throw, hardened inserts preventing sawing, and reinforced strikes with long screws reaching into frame backing. According to 2026 security surveys, businesses in the Stuart area installing Grade 1 deadbolts reduce forced entry incidents by up to 87% compared to residential-grade locks. This combination resists forced entry much better than residential deadbolts.
Common commercial deadbolt brands: Schlage B660P is the workhorse Grade 1 deadbolt. Medeco Maxum adds high-security cylinder with pick resistance and restricted key control. Mul-T-Lock Hercular uses proprietary cylinder for patent-protected key control.
Yale 1900 series is Grade 1 at competitive cost.
Treasure Coast Locksmith installs commercial deadbolts for offices, retail, warehouses, medical facilities, and institutional buildings across Port St. Lucie, Stuart, Vero Beach, and the tri-county area.
Commercial deadbolt specialty
- Grade 1 BHMA - commercial durability.
- 1-inch bolt throw - hard-target sizing.
- Hardened bolt - saw-resistant inserts.
- Schlage B660P - standard commercial.
- Medeco Maxum - high-security option.
- Mul-T-Lock Hercular - patent-protected.
- Reinforced strikes - 3-inch frame screws.
- Master key compatible - existing systems.
Common deadbolt scenarios
Real commercial deadbolt situations.
Typical calls
- Port St. Lucie retail with Schlage B660P install on back doors after break-in.
- Stuart medical office with Medeco Maxum upgrade for high-security area.
- Vero Beach law firm with Mul-T-Lock Hercular on file storage.
- Fort Pierce warehouse with commercial deadbolt install on man doors.
- Jensen Beach restaurant with deadbolt replacement after forced entry.
- Tradition office building with Grade 1 deadbolt upgrade from Grade 3.
- Palm City bank with high-security deadbolt on sensitive doors.
- Treasure Coast church with commercial deadbolt install on sanctuary entries.
Commercial deadbolt specifications and selection
Commercial deadbolts are graded by BHMA/ANSI A156.36 across Grade 1, 2, and 3. Grade 1 is the commercial standard and the only option serious commercial applications should consider.
Grade 1 Requirements: 250,000 cycles minimum, 1-inch bolt throw minimum, hardened bolt insert test, 10 strikes with 75 lbf lateral force on bolt, and specific key torque requirements. Grade 1 deadbolts cost more than Grade 3 but provide 5-10x the security resistance.
Schlage B660P: The most widely installed Grade 1 commercial deadbolt in North America. Available in wide finish selection, compatible with standard strikes and cylinders, and repairable with Schlage parts. Standard choice for most commercial applications.
Medeco Maxum: High-security Grade 1 commercial deadbolt with Medeco high-security cylinder. Pick-resistant, drill-resistant, and restricted keyway (authorized duplication only). Used when key control and advanced security matter.
More expensive than standard commercial but significantly more secure.
Mul-T-Lock Hercular: Israeli-designed high-security deadbolt with proprietary pin-tumbler mechanism. Patent-protected keyway. Strong pick and drill resistance.
Common in high-value commercial applications.
Yale 1900 Series: Yale's Grade 1 commercial deadbolt offering at competitive pricing. Good alternative to Schlage B660P with similar specifications and features.
Best 8T Series: Best's commercial deadbolt compatible with SFIC (small format interchangeable core) for facilities managing many locks. Part of the Best access system.
Installation Considerations:
Bolt Throw: 1-inch minimum for Grade 1. This means when bolt is fully extended, the bolt protrudes 1 inch into the strike. Longer throw means more material engaged and more resistance to pry and kick attacks.
Hardened Bolt: Grade 1 deadbolts include hardened steel inserts in the bolt to resist hacksaw attacks. Without hardening, bolts can be cut through in minutes with a hacksaw blade.
Strike Plate Installation: Strike plate must be reinforced and mounted with long screws reaching into the frame backing (usually wood studs behind the frame). 3-inch screws minimum for Grade 1 installation. Short screws into the jamb only provide minimal resistance.
Frame Backing: Solid frame backing behind the strike plate determines resistance to kick attacks. Hollow metal frames need solid backing. Wood jambs on hollow walls should have backing blocks or reinforcing kits to resist pry attacks.
Key Control: Commercial deadbolts benefit from restricted keyways (Medeco, Mul-T-Lock, Abloy) that prevent unauthorized duplication. Standard keyways can be copied at any hardware store; restricted keyways require authorized locksmith duplication with ID verification.
ADA Considerations: Deadbolts must have lever thumb turns (not knurled knob turns) for ADA compliance. Thumb turn rotation force limits apply. Most Grade 1 commercial deadbolts include compliant thumb turns.
Fire Door Compliance: UL-listed deadbolts available for fire-rated door applications. Must be specifically rated - non-rated deadbolts invalidate fire rating. Common on fire-rated tenant entrances.
Commercial deadbolt installation process
Assessment
Call (772) 758-1322.
Discuss application, security level, and budget.
Hardware selection
Choose Schlage, Medeco, Mul-T-Lock, or Yale based on needs.
Installation
Install deadbolt, reinforce strike with long screws, verify operation.
Key control
Provide keys, integrate with master system, document installation.
Commercial deadbolt tips
- Always specify Grade 1 for commercial applications.
- Use 3-inch screws in strike plates.
- Consider high-security cylinders for key control.
- Install deadbolts on all exterior commercial doors.
- Test bolt throw after installation - should be full 1 inch.
- Document installation for insurance and warranty.
Related services
Other Treasure Coast Locksmith services in this cluster.
Commercial deadbolt FAQs
Common questions from Treasure Coast business owners.
How much does commercial deadbolt installation cost?
Schlage B660P installed: $295-$495. Medeco Maxum: $495-$895. Mul-T-Lock Hercular: $495-$895.
Yale 1900: $295-$495. Includes deadbolt, reinforced strike, installation, and keys. Free quote.
Should I use Grade 1 deadbolts?
Yes for commercial applications. Grade 1 has 1-inch bolt throw, hardened bolt insert, and 250,000+ cycle rating. Grade 3 is residential quality inappropriate for commercial use.
Cost delta is small; security benefit is large.
What about Medeco Maxum?
Medeco Maxum adds high-security pin-tumbler cylinder with pick resistance and restricted keyway. Keys can only be duplicated by authorized locksmiths with ID verification. Used for high-value and key-control-sensitive applications.
Can you install high-security cylinders?
Yes. Medeco, Mul-T-Lock, Abloy, and other high-security cylinders can replace standard cylinders on many commercial deadbolts. Upgrades key control without replacing the full deadbolt.
Common security upgrade.
What strike reinforcement do you use?
Heavy-duty strike plates with 3-inch screws reaching into frame backing. Some installations use security strikes (oversized, thicker) for additional reinforcement. Strike installation determines resistance to kick and pry attacks.
Do commercial deadbolts work with master key systems?
Yes. Commercial deadbolts integrate with master key systems when cylinder is keyed to the master system pattern. We coordinate with existing master key plans during installation.
Can you install on fire-rated doors?
Yes. UL-listed commercial deadbolts available for fire-rated door applications. Schlage B660P is available in fire-rated versions.
Verify fire rating is specified during ordering for rated door applications.
What about electric deadbolts?
Electric strike with mechanical deadbolt is more common than electric deadbolts. Provides access control while maintaining mechanical deadbolt security. Alternatively, electric deadbolts available for specific applications.
Can you replace existing deadbolts?
Yes. Replace Grade 3 with Grade 1 commercial deadbolts, upgrade to high-security, or replace damaged deadbolts. Usually fits existing door preparation without door modification.
Standard service.
Do you handle multi-building projects?
Yes. Building-wide commercial deadbolt installation for office complexes, retail chains, and multi-building facilities. Coordinated scheduling and master key integration.
Volume pricing available.
What keyway options do you offer?
Standard keyway for most applications. Restricted keyways (Medeco, Mul-T-Lock, Abloy) for key control sensitive applications. Factory-registered key systems prevent unauthorized duplication.
Choose based on security needs.
Do you provide warranty?
Manufacturer warranty varies by brand (Schlage 10 year mechanical, Medeco lifetime mechanical, etc.). Installation warranty on our work. Documentation provided for warranty claims when needed.