One of the most common locksmith scams is when you are quoted an unbelievably low price over the phone, only to be hit with inflated charges once the job is completed. These scams can range from hidden service fees to replacing locks unnecessarily to increase the bill. If the price seems too good to be true, it often is. A reputable locksmith will offer a reasonable estimate based on the work you need and not give rock-bottom rates that sound suspicious. If the price changes significantly once the locksmith arrives, it could be an indication of a scam. Always get an upfront estimate in writing and agree on the cost before any work is done.