Buying may not always be cheaper. If existing locks are very good brand (meaning you don't see them in Lowes nor Depot), re-keying is also doable at the expense of time.
In general, re-keying is cheaper.
• 你也做木工吗? -地主老头儿- ♂ (0 bytes) () 12/18/2012 postreply 13:14:08
• 木工做一些. -wooddiy- ♂ (81 bytes) () 12/18/2012 postreply 14:43:14
• 有作品欣赏一下? -地主老头儿- ♂ (0 bytes) () 12/18/2012 postreply 15:14:53
• 呵呵, 只是木工, 还不是木匠. -wooddiy- ♂ (0 bytes) () 12/18/2012 postreply 15:29:53