I used this co to change all my locks 11.2011 when I moved into a new home. I was locked out of my garage last month and contacted Best Brooklyn Alarm System about the situation. the tech answered my call and had me set up an online appt but was able to fit me in a day earlier b/c he was in the neighborhood. Overall they do a great job and have good customer service. He came out basically free of charge to back up his previous work and I appreciate that. I would defiantly recommend this company!