door lock replacement cost
1 The only disadvantage to this approach is that there will be no locks on your entry doors while the cylinders are being re-keyed. 2  Buying basic locks and installing them yourself runs around $15-$50 per lock, or $60-$200 for four locks on a typical home, depending on the quality and style of the locks.hen the locksmith arrive he insisted the price started at $20 but was $50 for my locks. I have standard issue locks from Lowes. They wanted to charge $30 more for the deadbolt set than the cost of a brand new lock.