Commercial Locksmith

Master Key Systems


Utilizing a high end masterkeying software, Lappen Security has the ability to design a Masterkey system for any size commercial or industrial building. Our software also features a customer key management software which allows you to be in control of your system and on the same page with us, and updates that link together so we are always on the same page. CAD drawings for your building are also a service we offer which allows for detailed visibility of how your building’s Masterkey system is designed and will work.


Local Commercial Locksmith & Commercial Security Door Services

Centrally located in the Fox Valley, Lappen Security has a certified locksmith on staff. Need a key replacement or extra set of keys made for your office? Looking to change a lock after an employee leaves the company? Turn to Lappen! We cut keys and re-key locks to help you maximize business security.

In addition to commercial locksmithing, we also offer full door services/installation – from steel to aluminum exterior entry doors, standard-sized or custom fit.

Commercial Steel/Wood/Aluminum Door Division

Industrial Doors for the Harshest Environments

PLEASE NOTE: We do not provide any automotive-related key or locksmith services.

Backing up the data for your access control system can save you hours of work and reduce system downtime.

Trusted Products

Step inside our Little Chute showroom and you¹ll see that only the finest security products make the cut. From simple security lock to advanced HD surveillance camera, each item is ttested before it reaches our displays. Our team makes sure pieces meet manufacturer specs, work properly and get the highest marks for quality and customization and security technology.

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