I wanted to add an extra deadbolt to my front door for additional security and Dean from San Francisco Door and Lock showed up the same day I called and did a fantastic job. He explained the differences between security grade level of different types of deadbolts and helped me to pick the right one for me. The work was fast, clean and neat, he was done in less than an hour that’s including rekeying the locks and his price was exactly as quoted before he starts to work, Joseph was very friendly, very professional and fun to work with, highly recommend him!