I have an electronic lock to my apartment. The battery died and my roommate had not put me on the security system account, so no one at the security firm would talk to me. The person who answered the phone at DY Locksmith gave me instructions for how to unlock the door even though the battery was dead. He sent me YouTube videos, had me take videos of what I was trying to do and gave me feedback and communicated with me over the phone and text until I was able to get into my apartment. I had just moved to the city and knew very few people in Charlotte, so I did not know where I could have gone if I had been locked out until my roommate returned from her international travels. They did not charge me anything and helped me out of the goodness of their hearts. I would definitely recommend them. Great customer service and seem to be in business to help people, not to just make money.