Lock Installation & Replacement in San Antonio
Comprehensive Lock Installation Services


Whether you’ve moved into a new property, upgraded your doors, or need enhanced security, our locksmiths can install the perfect locks for your needs.
We offer:
- Residential Lock Installation: Secure your home with durable and modern lock systems.
- Commercial Lock Installation: Heavy-duty locks built for offices, retail stores, and warehouses.
- Smart Lock Installation: Enjoy convenience and control with keyless entry systems.
- High-Security Lock Installation: Advanced locks designed to resist drilling, picking, and bumping.
Our locksmiths work with all major door types, including wood, metal, and glass doors.
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Lock Replacement Services
Over time, locks can wear down or become outdated. Replacing them ensures continued safety and smooth operation.
We provide:
- Old or Damaged Lock Replacement
- Upgrading to High-Security Locks
- Keyless or Smart Lock Replacements
- Replacement After Break-Ins or Lost Keys
Our team will carefully remove the existing hardware, install new locks, and test them thoroughly to guarantee maximum security and smooth function.
Types of Locks We Work With
At Keymex Locksmith, we handle a wide variety of lock types, including:
- Deadbolts (Single and Double Cylinder)
- Mortise Locks
- Rim Locks
- Padlocks
- Keypad and Smart Locks
- Door Knob and Lever Locks
- High-Security and Restricted Key Systems


Brands We Work With
We install and service only trusted brands in commercial security, such as:
- Schlage
- Medeco
- Yale
- Kwikset
- Baldwin
- ASSA ABLOY












Why Choose Keymex Locksmith?
- Experienced Professionals: Trained and certified locksmiths with extensive field experience.
- Fast & Reliable Service: Same-day lock installation and replacement across San Antonio.
- 24/7 Availability: We’re here for emergencies – any time, day or night.
- Competitive Pricing: Quality locksmith services at affordable rates.
- Trusted by the Community: Over 1,200 5-star reviews from satisfied customers.
When Should You Replace Your Locks?
Consider replacing your locks if:
- You’ve recently moved into a new home or office.
- Your locks are showing signs of rust or difficulty turning.
- You’ve lost your keys or experienced a break-in.
- You want to upgrade to modern, high-security systems.
Service Areas
We proudly serve San Antonio and surrounding areas, providing locksmith services tailored to businesses of all sizes – from small offices to large enterprises.
EXCELLENT Based on 1793 reviews Posted on Joseph MedranoTrustindex verifies that the original source of the review is Google. I called Keymex to program a new keyfob cause someone stole my keys from my bag. The guy was really nice and he did a great job. He Even provided shade with his Company Vehicle so you wouldn't have to wait in the sun..Posted on Sabrina IsidroTrustindex verifies that the original source of the review is Google. Omg just wanted to come on here and say that Nick save me .. He was very professional and very quick.. I recommend him for all of San Antonio Tx .. thank u very muchPosted on Mohammad RizviTrustindex verifies that the original source of the review is Google. Tony was super helpful and fast.Posted on MARIBEL AVILATrustindex verifies that the original source of the review is Google. Excelente servicio de parte de OsvaldoPosted on Toya SennetTrustindex verifies that the original source of the review is Google. Awseome service!!!!Posted on Angela RodriguezTrustindex verifies that the original source of the review is Google. Grateful to have found these guys! We happened to stumble on it while going to another locksmith that couldn't help us with chipped keys. I went ahead and added a remote start key fob to my order since I was there. Prices were reasonable , definitely beating out dealership pricing, and conveniently located near I10 on West Ave. Highly recommend.Posted on Davin KeeleyTrustindex verifies that the original source of the review is Google. Charlie saved the day AGAIN! you have to ask for Charlie! He’s the only guy in San Antonio I trust to trouble shoot my car! HIRE HIM SPECIFICALLYPosted on Jack WilliamsTrustindex verifies that the original source of the review is Google. Fast and friendly!Verified by TrustindexTrustindex verified badge is the Universal Symbol of Trust. Only the greatest companies can get the verified badge who has a review score above 4.5, based on customer reviews over the past 12 months. Read more
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Secure Your Property Today
Your safety starts with a strong lock. Whether you need a new installation or a replacement, Keymex Locksmith is your trusted partner for professional lock installation and replacement in San Antonio.
Call Keymex Locksmith at (210) 300-7056 for expert lock installation and replacement services in San Antonio. Our team is ready to secure your business with reliable solutions you can count on.
Keymex Locksmith – San Antonio’s trusted partner in commercial security.
