MasterKey: Automotive Keys Made, Replaced, or Repaired


Make us your go-to automotive locksmith in Downey & Los Angeles, CA

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Welcome To MasterKey, DBA In Downey, California


Make us your go-to automotive locksmith in Downey & Los Angeles, CA

MasterKey is dedicated to providing residential and commercial car key services in Downey & Los Angeles, CA.

Our automotive locksmith can create duplicate keys and replacement keys that work as well as your originals. We also offer car key programming! Your satisfaction is our top priority. That's why we provide the services you need at an affordable price.



Whether you need a key for another driver or to replace one that was lost, we'll get the job done.

Call sms 562-367-4881 or visit our FAQ page for more information on our car key replacements.

Customer Service

  • Customer Service

    Our automotive locksmith service in Downey, CA stands out with exceptional customer service, ensuring each client receives personalized attention and expert advice. We prioritize clear communication, reliability, and a friendly approach to guarantee customer satisfaction.

  • Pricing

    We offer competitive pricing for our key programming, duplicating, and laser-cutting services, making us the cost-effective choice for vehicle owners in the Downey area. Our transparent pricing structure ensures clients receive high-quality service without breaking the bank.

  • Quick Service

    Our automotive locksmith team takes pride in delivering swift and efficient services. With our well-equipped mobile units stationed in Downey, we can respond rapidly to emergency calls, minimizing downtime for customers and getting them back on the road as quickly as possible.

  • PCM/BCM Programming

    In addition to standard locksmith services, we specialize in PCM (Powertrain Control Module) and BCM (Body Control Module) programming, a unique advantage that sets us apart in the Downey region. This expertise allows us to tackle complex vehicle security and programming issues, ensuring comprehensive solutions for our clients.

Our Services


Reliable Services At MasterKey, DBA


At MasterKey, DBA, we pride ourselves on offering straightforward, friendly, and reliable services. Because when it comes to car keys, you deserve nothing less than a master touch. For hassle-free key duplication and seamless programming of your automobiles, contact us at MasterKey, DBA

Call Today For A Free Estimate

Client Testimonials

Highly recommend them! I had lost my main key fob so I contacted master key and they helped me out the same day. Fast and reliable service.

Diddy A.

Did an amazing job made keys and programmed them for 4 cars and was really fast and answered all my question, definitely recommend.

Steven H.

Mario is amazing fast, professional and reasonable this is the second time he helped me out thanks bro.

Art M.

Mario was awesome! He came out to my job, he got here at the time he promised and quickly made me a new key for my 2013 VW Jetta. Highly recommend.

Zamina G.

Lost my Subaru keys, Mario got here in about 30min & was out in 30min. I was surprised by how quick the key was done. Great service + reasonable pricing.

Ginna D.

Mario was super professional and very nice he came same day and had it done super quick would definitely come back to have my key done!

Samantha N.

Highly recommend them! I had lost my main key fob so I contacted master key and they helped me out the same day. Fast and reliable service.

Diddy A.

Did an amazing job made keys and programmed them for 4 cars and was really fast and answered all my question, definitely recommend.

Steven H.

Highly recommend them! I had lost my main key fob so I contacted master key and they helped me out the same day. Fast and reliable service.

Diddy A.

Did an amazing job made keys and programmed them for 4 cars and was really fast and answered all my question, definitely recommend.

Steven H.

Mario is amazing fast, professional and reasonable this is the second time he helped me out thanks bro.

Art M.

Mario was awesome! He came out to my job, he got here at the time he promised and quickly made me a new key for my 2013 VW Jetta. Highly recommend.

Zamina G.

Lost my Subaru keys, Mario got here in about 30min & was out in 30min. I was surprised by how quick the key was done. Great service + reasonable pricing.

Ginna D.

Mario was super professional and very nice he came same day and had it done super quick would definitely come back to have my key done!

Samantha N.

Highly recommend them! I had lost my main key fob so I contacted master key and they helped me out the same day. Fast and reliable service.

Diddy A.

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