Trusted Since 2001 · San Antonio, TX · TDPS LIC# B12367
Family-owned, certified, and local — Guaranty Lock & Safe delivers expert residential, commercial, and automotive locksmith services across San Antonio and beyond.
Why San Antonio Trusts Us
Rooted in the San Antonio community since 2001 with industry expertise passed down through generations. We're your neighbors, not a franchise.
We come to you. Our mobile team provides prompt, on-site locksmith services for residential and commercial clients throughout the greater San Antonio area.
Bonded, insured, and TDPS licensed (#B12367). Our industry-certified team handles everything from simple key duplication to advanced security systems.
Hundreds of satisfied customers across San Antonio have given us top ratings for punctuality, quality, and fair pricing on Google and Yelp.
Reasonable rates with no hidden fees. We accept Visa, MasterCard, Discover, and American Express. Get an instant quote by phone before any work begins.
Serving San Antonio, Boerne, Schertz, Universal City, Cibolo, Alamo Heights, Helotes, Leon Valley, Bulverde, Fair Oaks Ranch, and surrounding areas.
Full-Service Solutions
House key duplication, rekeying, lock repair, installation, and residential safes. We protect what matters most — your home.
Over two decades of protecting San Antonio businesses with master key systems, high-security locks, and commercial safes.
Residential and commercial safes, safe rekeying, and professional safe installation. Protect your most valuable assets.
Car key duplication and cutting for all makes and models. We test keys on-site and advise on programming for your specific vehicle.
Modern access control systems for businesses that want greater control over who enters sensitive areas — including keypad, fingerprint, and card readers.
House, cabinet, storm door, and obscure key copying. Customize with hundreds of designs and colors to reflect your personality.
TDPS LIC# B12367
Bonded & Insured
About Guaranty Lock & Safe
Guaranty Lock & Safe is a trusted, family-owned provider of comprehensive lock and key services with deep roots in the San Antonio community. Our industry-certified technicians bring extensive experience passed down through generations to every job — whether it's a simple key copy or a full commercial security overhaul.
We operate both a convenient retail storefront just off I-10 at 10501 Huebner Rd and a full mobile service team. Whether you visit us in-person or need us to come to you, our commitment to prompt, professional, and affordable service never wavers.
2001
Year established
4.7★
Google rating
How It Works
Reach us by phone or stop by our San Antonio shop off I-10.
Get a clear, upfront price — no surprises, no hidden fees.
Our mobile team arrives promptly at your home or business.
Quality workmanship completed efficiently — your security restored.
Client Reviews
"Always quick, easy & affordable. The one place that has been able to make copies of obscure keys, i.e., cabinet, storm door, etc."
Cara P.
Verified Customer
"This company was amazing. Jaime came, was great and cared about the situation. All locks replaced and I can't thank them enough for securing the property!"
John V.
Verified Customer
"Jaime came out later that day and fixed the latch. Super polite, friendly and helpful."
Laura S.
Verified Customer
"I have been using Guaranty Locksmith for 7 years. They are always punctual, provide excellent service, and charge a reasonable rate."
Becky K.
7-Year Customer
"Excellent communication and service. We had several locks changed and keys made. Everything was done efficiently and to the best quality."
Matt M.
Verified Customer
"Got a great price over the phone, went in store, got it cut in minutes. He even tested it on the vehicle and advised me on how to program it."
Emilio S.
Verified Customer
Common Questions
Yes! Our mobile team provides on-site locksmith services throughout San Antonio and surrounding areas including Boerne, Schertz, Universal City, Cibolo, Alamo Heights, Helotes, Leon Valley, Bulverde, and more. We come to your home, business, or vehicle.
We are open Monday through Friday from 8:30am to 4:00pm. We are closed on Saturdays and Sundays. Call us at (210) 494-5500 during business hours for an instant quote or to schedule service.
Absolutely. We specialize in duplicating hard-to-find keys including cabinet keys, storm door keys, and other obscure keys that most hardware stores cannot copy. We also offer a wide range of designs and colors for residential keys.
Yes. Guaranty Lock & Safe is fully bonded and insured, and holds Texas Department of Public Safety license #B12367. You can trust our team with your home, business, or vehicle security.
We accept all major credit cards. Accepted payment methods include:
Ready for Peace of Mind?
Get an instant quote from San Antonio's trusted family locksmith. We're here Monday–Friday, ready to protect your home, business, or vehicle.
Business Hours
Mon – Fri
8:30am – 4:00pm
Sat – Sun: Closed