Caution about scams! I called kingket asking for pricing and got the message machine. I then called silverstate and got quotes from them and asked them to send someone. I got a call right after I gave silverstate my address my someone saying they were just dispatched, so thinking they were with silverstate and just needed a confirmation, I gave that person my address too. Someone showed up and proceeded to work on my locks. About a half hour later a technician from silverstate shows up and the guy already working claims to be with kingkey. After taking way too long on the locks he tries to tell me the bill was almost $1000 For rekeying 10 locks! I had gotten a quote of $200 from silverstate. The guy originally said he was with king key but then said he was with 24 hour key. In the end I refused payment and had to call silverstate back. King key later contacted me and it turns out the guy who said he was with their company wasn't with them. Moral of the story check their credentials and verify the price quote you got.