Determining where to have a duplicate car key made depends entirely on the type of key. Basic keys can be made at most locksmith shops or hardware stores, and require nothing more than a simple cutting machine.
Newer model cars often have transponder chips embedded within them that must be programmed to an individual automobile before use. While some locksmiths have the technology to do this, sometimes it is necessary to contact the car's manufacturer for a replacement or duplicate. Laser cut keys, and those with embedded transponder chips, can generally not be duplicated at a typical hardware store. Smart keys, regardless of the car's model, require a visit to a dealership.