We use the finest lubricants on the Market. When you get you home or Business Rekeyed by us. We will restore and lubricate your locks like new. We experiment with different lubricants all the time. We can all clean up those dirty handles if needed. We are Rancho Cucamonga’s number one choice for a trusted locksmith. We can Rekey literally any lock without a key. There are those rare exceptions like on a weiser keyed knob and the Kwikset Titan knob which requires a working key to pull the cylinder out. We will give it our best to make it happen. If we have any issues, we usually will let you know before pulling off any hardware.