Locksmith Services in St. Louis and St. Charles Counties

24/7 Emergency Services

Labor Warranties Up to 30 Days

Military and First Responder Discounts

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Providing Reliable and Affordable Lock and Key Services Since 1979


Founded in 1979, AA Key and Lock Services is a locally owned and operated locksmith company based in St. Louis and serving St. Louis and St. Charles counties. We have over 30 years of experience you can count on for all your lock and key service needs. From automobile lockouts to new security system installation, we can do it all. Feel a new level of safety and security in your home or business when you rely on AA Key and Lock Services. Call us today to get started or to take advantage of our 24/7 services!

Why Choose AA Key and Lock Services?

AA Key and Lock Services's dedicated team of fast and reliable locksmiths provides exceptional lock and key services to St. Louis County and St. Charles County, MO. With 24/7 emergency services, we prioritize your safety and time. Our competitive prices and military and first responder discounts make our high-quality services accessible to all. Experience high-quality work and a secure property with AA Key and Lock Services. Don't wait—call now or fill out our form to request a service and see the AA Key and Lock Services difference for yourself.

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24/7 Emergency Services

Locally Owned and Operated

Labor Warranties Up to 30 Days

Over 30 Years of Experience

Military and First Responder Discounts

Associated Locksmiths of America Member

Commercial Locksmith Services

Ensure your business is as secure as possible with the help of AA Key and Lock Services. From advice and security assessments to electronic safes and high-security locks, we can do it all.

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Residential Locksmith Services

Feel safe and comfortable in your home when you take advantage of the various residential lock and key installation and repair services we offer at AA Key and Lock Services.

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Auto Services

If you've ever been locked out of your car, you understand how frustrating it can be. Never feel stranded or helpless again when you take advantage of our 24/7 emergency lockout services.

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Access Control Systems

Experience easy entry into your property without the use of a physical key with a control access system. Enjoy peace of mind knowing there are no lost keys or unauthorized key copies floating around.

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Here's what our satisfied customers are saying...

At AA Key and Lock Services, we take pride in providing exceptional lock and key services to our customers. We would be grateful if you could share your thoughts about our locksmith services with others. Your feedback helps us improve and helps others make informed decisions. Please take a moment to leave a review of AA Key and Lock Services and let others know what you think.

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