Jacks Keys Services/Arnoldo's Locksmith is a local locskmith in the city of Upland providing locksmith and locksmith related services to the communities of Upland, Rancho Cucamonga, Claremont, Montclair and Ontario. We offer the following services: Rekeying, Lock out service, Transponder key duplicates, repair, new locks, knife sharpening, new key duplicates, locks repairs and more. We are licensed, bonded and insured and have been servicing the community for over 65 years.