Master Lock & Key Store is known As one of the leading Locksmith Service Company in Houston, TX, we can help you with Automotive Locksmith, Commercial Locksmith, or Residential Locksmith needs. As a company that has been around for several years, we understand that auto problems can be overwhelming. Though our Locksmith Professionals can solve all your Locksmith related issues such as Lockout, Car Ignition problems, Re-Keying, Auto Key Replacement, Security Lock Repair, and other related Locksmith services 24 Hours A Day.