Products and Services

Access Controls

SDi can help control who enters your property and when. With many different options from card readers and vehicle transponders to telephone entry and fingerprinting, we offer any service that you may need.


Security Door Inc. takes great pride in being able to provide Anti-Terrorism products. Being able to protect the most critical areas of the Region is a privilege to us. We can provide any services needed to protect your location.


Backstops/ Netting

SDi can install professional grade netting systems for all athletic facilities where a safe and aesthetically pleasing netting system is required.


Cable Barriers


Dock Equipment

SDi offers Loading Dock Repairs, Service, and new Installations on all makes of loading dock equipment. We can repair or replace your dock levelers, dock seals, bumpers or shelters.


SDi proudly offers: Outdoor Perimeter Fencing, Indoor Warehouse Chain Link Enclosures, Chain Link Storage, Barbed Wire Install, Privacy Link, Wrought Iron and Railing, Razor Ribbon, Privacy Screens, Vinyl Coated Chain Link, and Emergency Repairs. Give us a call; we’ll provide you the very best service in our industry.

Gate Operators

SDi is the only union HySecurity gate operator installer in Northwest Indiana. HySecurity gate operators, crash gates, barrier arms and wedge barrier arm operators provide unparalleled reliability, quality, total lifetime value, and field configurable functionality. These respected machines protect everything from terrorism targets to single family residences worldwide. If the site deserves the ultimate in security, performance, and reliability, HySecurity is always the operator of choice.

Guard Rail

SDi specializes in the installation and maintenance of guardrail products. We install a variety of guardrail systems for public and private sector uses, such as in shopping centers, parking lots, and driveways, or surrounding buildings, culverts, and retaining walls.


Overhead Doors

SDi is a dealer of Raynor, Wayne Dalton and TNR doors. We can supply and install anything you may need from a stainless counter shutter to a mammoth high speed rubber door and everything in between.

Personnel Doors

Temporary Fence

Looking for a temporary solution to help keep people or traffic out of a certain area? We offer different styles and types of temporary fencing that can help you do just that.


SDi can help control the flow of people and protect against unwanted entry and deter theft by installing turnstiles at your entryways.

Video Surveillance

SDi provides a vast assortment of security cameras as well as pre-configured and custom-designed security systems for every budget. We specialize in integrating HD quality surveillance cameras with NVRs and video management software solutions, wireless networking, and other essential surveillance technologies.