very professional, polite and knowledgable! he changed the locks on an older building that our company moved the business into. all locks was old and some locks didnt worked at all.. he fixed some locks and replaced others and make a new keys for all, master key. we called dylocksmith because the excellence reviews and could not have asked for better service! also he is not a call center and he is super nice guy! came on time and service was very fast. thank you! highly recommend to enyone who need a locksmith.