About Oestreich

Trusted Locksmith Solutions in Joliet, IL Since 1904

About Oestreich Sales & Service

For over 120 years, Oestreich Sales & Service has been the name homeowners and businesses in Joliet, IL, trust for locksmithing, safes, and access control solutions.


As a locally owned and operated company, we take pride in delivering personalized service, expert craftsmanship, and reliable security products that stand the test of time.

White suburban house with three gables, front porch, and two-car garage under a clear blue sky
Finger pressing a red-lit keypad on a wall-mounted access control panel

Our Expertise & Professional Standards

At Oestreich Sales & Service, we specialize in:

  • Locksmithing – Repairs, installations, rekeying, and master key systems.
  • Access Control – Keyless entry, biometric systems, and card access.
  • Safes – Sales, installation, and secure combination resets.


We work exclusively with trusted brands known for quality and reliability, including:
Schlage • Medeco • LCN • Yale • Corbin • HES • Von Duprin


Our commitment to excellence is backed by active membership in respected industry organizations:

  • Associated Locksmiths of America (ALOA)
  • Safe and Vault Technicians Association (SAVTA)
  • Mechanics Local 701 Union