If your lock stops working or your key breaks off inside it - or if you want to re enforce your home security - lock replacement, a process in which the entire lock system is removed and replaced with a new one - is the ideal solution. Whether you need to replace the lock in your front door, bathroom door, or window door, our technicians can help replace any outmoded or decayed systems with a brand new, more smoothly operating one. Chicago Car Keys offers efficient lock replacement from our team of certified, skilled technicians. We offer the highest quality locking systems on the market, including high security cylinders and electronic locks from brands ranging from Mul-T-Lock to Medeco. Our courteous locksmiths will help replace any lock you wish, ensuring both our customer’s complete satisfaction, and the security of their household or business.