Twelve years ago OC Locksmith installed new doorknobs in my older home. I was so impressed with how they fine-tuned each door! Some got new hinges, others just got slight adjustments so that every door worked smoothly. It was a great experience--from the moment they arrived until they left. Recently we had to change our front door lock and I was happy to have them take care of everything once again. So professional and everything they do is done perfectly.