About-Us

Welcome to Arnoldo Expert Locksmith – Jack’s Key Service

Arnoldo Expert Locksmith – Jack’s Key Service of Upland, CA provides a variety of lock services and repairs for homes and businesses. We are a family owned and operated business with 55 years of experience in the industry.

**We are NOT affiliated with Jack’s Lock and Key**

Our associates speak Spanish, and are happy to work with you on any of your lock and key needs. Visit our shop, or call us in case of an emergency.We are family owned and operated and have served the Upland, CA area for more than 50 years!

We want our customers to be aware of fly by night operators/price goughers.
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