Authorized Dealer
Mul-T-Lock in NYC
World-leader in high-security cylinders
15–30 minutes
Manhattan response
Fully Licensed, Bonded & Insured
Since 2005
4.9 ★
312+ verified reviews
Why Mul-T-Lock
Mul-T-Lock Sales, Install & Service
Mul-T-Lock pioneered the patented MT5+ keyway and remains the premium choice for residential and commercial high-security cylinders.
Sullivan Locksmith Services is a factory-authorized Mul-T-Lock dealer for the NYC market. We sell genuine Mul-T-Lock hardware — never gray-market or counterfeit — and we have certified technicians for installation, rekeying, and warranty service.
Popular Mul-T-Lock Products We Stock:
MT5+ cylinders
Hercular padlocks
Interactive+ key system
Junior smart locks
Why Buy From Sullivan
- Factory-authorized Mul-T-Lock dealer
- Genuine Mul-T-Lock hardware — never gray market
- Certified install + warranty service
- Same-day pickup at our showroom
- Volume pricing for property managers
Visit Showroom
229 Sullivan St, New York, NY 10012
Open 24 Hours · 365 Days a Year
Schedule OnlineOr call (212) 961-6790
Book a Free On-Site Estimate.
Tell us what you need and when. A licensed Sullivan technician will arrive in your chosen window with a flat-rate quote — no obligation, no surprise upcharges.
Flat-rate pricing — quoted before we dispatch
Licensed, W-2 technicians (never subcontractors)
Same-day appointments across all 5 boroughs
15–30 minute Manhattan emergency response
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