If you have a problem with your lock, usually it can be fixed. There are times when it just wears out either from old age or neglect...or sometimes both. There are things you can do to prolong the life of your locks. A good piece of advise to follow is to spray some cleaning lubricant into the key slot. WD40 is particularly well suited for this. Also spray some into the space between the latch and where it protrudes from in the face of the lock in the edge of the door. In the event that your faulty lock is beyond repair, we can replace it with one that promises to give you years--and probably decades--of service. We offer 'Made in America' tough...Schlage, Kwikset, Arrow, Yale, Corbin-Russwin, making the finest security hardware available, most of them for more than a hundred years. Now, you can't get any better than that.