door products | Denville, NJ | ND Security Company | 973-625-5602

A full guarantee on locks for your windows and doors

Replace those old, brittle locks with quality security pieces from our team. Give us a call for a FREE estimate!

Find the most fitting lock for your style of door

Are you installing new doors in your home. Give our team a call to install any lock you desire to make sure your home or business is a safe and secure place. For any door type of style you have; our team can install the proper lock that you need.

  • Solid / hollow doors
  • Front, screen, patio, french, storm
  • Electrical, laminate, high visibility steel view, flush, automatic
  • Electrical door systems
  • Door closers, bumpers

How safe are the locks on your windows?

Windows are the easiest way for an intruder to enter your home. Make sure that your windows are properly secured with top notch window locks. Get a free estimate when you rely on our team and we'll install, repair, or replace any lock with ease.

  • Window guards
  • Safety windows
  • Security shutters
window guards | Denville, NJ | ND Security Company | 973-625-5602

Contractor discounts!


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