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!

Locksmith for Safes 

Tri County Lock provides safe opening service for residential and commercial safes. Electronic keypad conversions, safe combinations changes, repairs and lockout 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 chipped key, remote or key fob programmed for your vehicle. Motorcycle locksmiths 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 access control system. From mechanical push button locks and electric strike buzzers to electrified lock hardware and magnetic locking systems we are chicagolands premiere security locksmiths.

Commercial Locksmiths

Update your office security with a master key system or electronic keypad locks. We provide a wide variety of ADA commercial hardware from panic bars, door closers and keyed lever locks, along with our professional installation. Choose us for your next commercial locksmith or door project.

Lockout 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 change service, deadbolts and new locks installed to help with your new home projects.

Tri County Lock Inc

206 Lilac Ln

North Aurora IL 60542

(By Appointment Only)

Tel: 1630-669-7110

Tri County Lock Inc 

1 N 526 Macqueen Dr

West Chicago IL 60185

Tel: 1331-240-1806

Tri County Lock Inc

707 Colomba Ct #102

St. Charles IL 60174

Tel: 1630-485-9084

Local Service Areas:

Aurora IL Locksmith                         

Naperville IL Locksmith 

Batavia IL Locksmith  

Geneva IL Locksmith 
St Charles IL Locksmith 

Yorkville IL Locksmith  

Sugar Grove IL Locksmith 

Wheaton IL Locksmith 

Locksmith West Chicago IL 

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Locksmith Streamwood IL

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Locksmith Oswego IL 

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Locksmith Glendale Heights IL

Locksmith Warrenville IL 

Locksmith Bloomingdale IL 

Locksmith Hanover Park IL

Locksmith Cortland IL

Locksmith Big Rock IL

Locksmith Winfield IL |

Locksmith North Aurora IL  

Locksmith Oakbrook IL

Locksmith Pingree Grove IL

Locksmith West Dundee IL 

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