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25 Years
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Emergency
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Your Trusted Locksmith in San Antonio, TX
Guaranty Lock & Safe has been a trusted provider of comprehensive lock and key services since 2001, serving the San Antonio community with a family-owned commitment to quality and reliability. Our team of industry-certified technicians brings extensive experience passed down through generations, offering prompt, professional, and reliable security solutions for residential, commercial, and automotive needs. With a 4.7 Star Rating on Google, we combine technical expertise with personalized service, whether through mobile on-site assistance or our retail store conveniently located off I-10. We specialize in key duplication for all vehicle makes, rekeying and repairing locks, installing high-security systems, and providing residential and commercial safes.

Our dedication to transparency ensures no hidden fees, while our deep local knowledge allows us to address the unique security challenges faced by homeowners and businesses in our service areas. From emergency lockout assistance to customized key solutions, we prioritize efficiency and affordability without compromising quality. Our reputation is built on decades of addressing complex lock and key issues with integrity, ensuring every client feels valued and secure. As a bonded and insured business holding TDPS License #B12367, we uphold the highest standards of professionalism and trustworthiness.
Services
Residential Locksmith Commercial Locksmith Safes Auto Keys Key Duplication Access Control Systems Retail Store
Details
  • Year established: 2001
Highlights and features
  • Family-owned with strong community ties since 2001
  • Industry-certified technicians with generational experience
  • Prompt mobile service available across San Antonio and surrounding areas
  • Transparent pricing with no hidden fees
  • Serving residential, commercial, and automotive clients with specialized solutions
Associations and certifications
  • Texas Department of Public Safety (TDPS)
What people say
Quick, easy & affordable Excellent service performed Great price over phone Knowledgeable owner gets job done Efficient and high quality
Services
Residential Locksmith
Our residential locksmith services protect homes through lock rekeying, repair, and high-security installations. We offer safe solutions for valuables and customized key designs. As San Antonio's top-rated provider since 2001, our certified technicians deliver 24/7 emergency assistance and transparent pricing. Serving neighborhoods including Alamo Heights and Leon Valley, we ensure homeowners maintain complete control over their property's security.
Commercial Locksmith
We secure businesses with master key systems, high-security locks, and commercial safes. Our experts address sensitive inventory protection, employee access control, and theft prevention for companies in high-crime areas. Serving San Antonio's commercial districts since 2001, we provide emergency lockout services and customized security solutions tailored to business needs across industries.
Auto Keys
Specializing in automotive key duplication, transponder programming, and remote key repair for all domestic and foreign vehicles. Our mobile service covers San Antonio and surrounding areas, offering urgent lockout assistance and dealer-priced alternatives. From basic keys to smart key technology, we use advanced equipment to ensure precision cuts and reliable vehicle access.
Safes
We provide complete safe solutions including sales, installation, and repair for residential and commercial applications. Our offerings include weapon safes, cash vaults, and fireproof storage options from Hayman Safes. With certified professionals handling installation and service, we ensure maximum protection for valuables while maintaining compliance with security standards.
Key Duplication
Offering comprehensive key duplication services for standard, transponder, and smart keys at competitive prices. Our inventory handles obscure key types like cabinet and storm door variants. With both in-store and mobile services covering a 20-mile radius from 78240 ZIP code, we provide same-day solutions for lost keys and urgent access needs.
Questions
Do you offer 24/7 emergency locksmith services?
Yes! While our store hours are Mon-Fri 8:30AM-4PM, our team provides 24/7 emergency lockout assistance as mentioned in customer reviews.
What areas do you service beyond San Antonio?
We serve Boerne, Schertz, Universal City, Cibolo, Helotes, Leon Valley, Fair Oaks Ranch, Bulverde, and surrounding areas within a 20-mile radius.
Can you duplicate all types of vehicle keys?
Yes, we handle standard, transponder, and smart keys for domestic brands like Ford and Chevrolet, plus Asian makes including Toyota and Honda.
How do I schedule a commercial locksmith service?
Call (210) 494-5500 to discuss business security needs, or visit our store at 10501 Huebner Rd for in-person consultation with our certified team.
What safe types do you install?
We sell, service, and install weapon safes, cash vaults, wall safes, and floor safes from Hayman Safes for both residential and commercial applications.
Do you offer transparent pricing?
Yes! Our quotes disclose exact pricing before service arrival with no hidden fees, as confirmed by multiple customer reviews.
Reviews (4)
Peter Nkansah
Dec 31, 2021 Report
Positive:Professionalism,Quality,Responsiveness,Value
If you have lock related issues definitely make your way to this location or call for Joel. The attention to detail, respect and overall experience is one that requires more than five stars.
Cara P.
Oct 27, 2021 Report
Always quick, easy & affordable. The one place that has been able to make copies of obscure keys, i.e., cabinet, storm door, etc.
Supermarley
Oct 07, 2021 Report
Positive:Professionalism,Quality,Responsiveness,Value
Best locksmith in town. I wouldn't go anywhere else. David
B. Morris
May 07, 2021 Report
Great service by the young man here. Don't waste your time at those kiosks for ready-made keys at Lowes or Home Depot. This is where you need to go! Less than $2.50 for one key that will always work the 1st time AND it took less than 20 seconds. Give them a try