Who has keys to your door?
A former tenant?
A former employee?
Someone you loaned your keys to?
Rekeying a lock involves changing the pins inside the lock so that the old key doesn't work and a new key will work. It's the cheapest security you can buy if you are unsure who has still has keys to your locks.Curt’s Lock & Key Service, Inc, 1102 Main Ave, Fargo, ND 58103-1755Phone 701-232-9440