Make the switch today to superior customer service!
full-service locksmith shop

Lock Smith

Put your Mind at Ease

The Key to Protecting Everything

Security Master, a local locksmith division of Alarm Detection Systems, Inc., has operated in Aurora for over 30 years.

As a full-service locksmith shop, Security Master offers our customers extensive security and door solutions, including a broad range of keying options. We are a proud distributor and licensed installer of the high-security key and lock cylinders manufactured by Medeco®. These devices offer additional protections, such as key duplicating restrictions and anti-drill/pick-resistant locks.

Security Master’s experienced staff is skilled in replacing deadbolts and locksets. We also replace doors and repair door frames. Our team of locksmiths can service door strikes for keycard access, door closers, and exit device hardware. When needed, we can provide custom lock part fabrication that is pleasing to the eye and replaces the original part’s full functionality.

Save Time and Money

Benefits of a Full-Service Locksmith

Hiring a professional security locksmith can save you time and money, whether you’re dealing with the locks at home or in your business. A professional locksmith in Chicago offers the expertise you need when you need a replacement key for your home or need a door lock repaired or replaced. There are several scenarios in which a security locksmith can help:

Security Solutions Tailored to Your business

Why Choose ADS?

When you choose Security Master for your locksmith needs, you know you’re hiring a licensed expert. In addition to being current on the latest industry standards and technologies, a licensed locksmith specializes in assessing the security of your home or business, upgrading your locks, and providing responsive service so your issue is fixed as quickly as possible. These are a few of the other benefits of hiring a professional locksmith in Chicago:

Licensed and Insured Locksmith Services

Choose the ADS and Security Master Team

Security Master is your No. 1, choice for licensed and insured locksmith services in Chicago. On-site security evaluations are always free. Just fill out the form below to request a quote or contact us to speak to a professional.

Choose Your Account Location
Always there when you need us
We’re the leading alarm system provider in the Midwest. Let’s talk about making your home or business safer.
Protecting your home and the things that are precious to you is what we do.
Make the switch to alarm detection systems today.
Call us at 630.844.6300

Call us at 800.446.7519

Make the switch to alarm detection systems today. Switch/Activate
Passion to Protect
From Day One
ADS has been protecting lives and property for over five decades. We understand that people make the difference.
Protecting your home and the things that are precious to you is what we do.
Make the switch to alarm detection systems today.