We warranty our services for 90 days with some exceptions. There are a few kinds of labor that we perform that come with no warranty at all, however the locksmith will advise you of this before doing any work. The three most common being the re-coding of Schlage SecureKey, and Kwikset SmartKey hardware, along with certain pot-metal cylinders commonly found on aluminum frame glass doors. These cylinders are known for their resistance to being serviced, and often fail shortly afterward. SecureKey (although discontinued) and SmartKey were intended to allow home owners to re-code their own hardware if they needed to. We do “re-code” them if we are asked to, but due to the high failure rate of these cylinders, we do not warranty doing so.