Tri County Lock is a family operated locksmith & commercial door company with locations in North Aurora, St Charles and West Chicago. We work in the security industry so trust and safety are very important to us and our customers. We offer professional same day service at affordable rates. The technician who performs work at your home or office has over 15 years experience in the locksmith trade and has no criminal background. Commercial locks & steel door replacement is our specialty. Call Tri County Lock for a free quote today!

Safes Serviced
Tri County Lock provides service for residential and commercial safes. Electronic keypad conversions, safe combinations changes, repairs and locked out service for all safes.

Automotive Locksmiths
Did you lose keys to your car or motorcycle or just need a spare? We can help by coming out to you and professionally making a new key for your vehicle. Motorcycle and car locksmiths on call to help you now!

Commercial Door & Frame Installations
Call us for a free quote on professionally replacing your damaged steel door or frame. We service and replace commercial hollow metal doors and frames for any custom opening. Fire rated wood doors and commercial door hardware sold and installed for all applications.

Access Control Systems
Tri County Lock provides keyless security products for piece of mind. Let us professionally install your next keyless entry system. From mechanical push button locks and electric strike buzzers to electrified lock hardware and magnetic locking systems we are chicagolands premiere security lockmsiths.

Commercial Locksmiths
Update your office security with a master key system or electronic keypad locks. We provide a wide variety of ADA commercial panic bars, lever locks and door hardware along with professional installation for all business applications.

Locked out Service &
Non-Destructive Entry
Locked out of your home, business or car? We provide you with fast locksmith service to get you in and out of trouble. Let us professionally gain entry into your home or auto through the lock without damaging the doors or other property that can result in high repair cost. Watch out for amateurs.
Residential Locksmiths
Lost keys or just moving into a new home? No need to replace the locks, let Tri County Lock professionally re-key your locks so the old key will no longer work. From home to business locksmith we offer a wide variety of locks and services to help with your needs.