| Business | Phone |
| J Eckert Locksmith Denville 7834 | (973) 366-1140 |
| Master Security & Lock Inc State Highway 53 & Fox Hill Rdamp;, Denville 7834 | (973) 627-6381 |
| N D Security Co 134 E Shore Rd, Denville 7834 | (973) 625-5602 |
| 24 Hour 7 Day Emrgncy Lcksmth 29 Broadway, Denville 7834 | (973) 788-0347 |