Nearly 50 Years of
Protecting San Antonio

About Us

Security You Can Count On. Service You Can Trust.

Family owned and operated, for more than 40 years, Alert Lock and Key has been committed to providing prompt and quality service. We offer 24-hour full locksmith services, residential and commercial locksmith services, access control, CCTV, New construction Frames, Doors and Hardware Supply, installation of doors and hardware, Aluminum storefront glass Supply and installation, along with safe openings, moved, serviced and sold. Alert Lock and Key is fully licensed, bonded and insured, and we guarantee that when you work with us, you are in good hands. We are up to date on the latest technology so that we can assist you in selecting smart locks and access control systems that are right for you. There are a wide variety of alternatives available in the marketplace, and we’re technologically ready to spell out the advantages and disadvantages of each. We’ll help you select your very best option, followed by a complete installation that is done quickly and correctly. You will be confident that your home or business will be completely protected, even when you’re on a trip thousands of miles away. Alert Lock & Key has been a reliable San Antonio company since 1976. For more than forty years, we’ve taken pride in providing excellent high quality locksmith services to the people and businesses of San Antonio and South Texas. We provide free consultations on larger projects, and quick turnarounds on immediate requests including lockouts and broken keys. You can always trust that our locksmiths and technicians will perform a high-quality job and will keep your home or business as secure as possible.

We've built our reputation one job at a time — rekeying a new homeowner's locks, installing a master key system for a growing business, boarding up a storefront after a break-in at 2am. No job is too small, and no emergency is too inconvenient. That's the Alert Lock & Key promise.