Friends in Vegas with a number of store locations swear by Green Valley Lock and Safe.
Stay away from Pop A Lock they are known scam artists nationwide, have personal experience with them via those same friends.
One of them locked herself out of her home, Green Valley couldn't get there for 6 hours they said, it was July and hot, she couldn't wait, and didn't want to wait for me to come over the hill to pick the lock.
She called Pop A Loc, they charged her $538 to drill out a standard Kwikset door knob lock, said it couldn't be picked!
Then they put in an off breed knob lock to replace it, one you can get at Wal Mart for $12. This was mid week, during the day.
They ran her credit card on an old slide imprint machine, didn't give her the carbons, just the bottom copy.
An hour later when I got there, I had her check her credit card statement online, showed the $538 charge, and , just 5 minutes later, another $400+ charge in Reno, the card was a brand new one, first time she had used it, so very little chance it had been compromised prior to Pop A Loc's visit.
Case against Pop A Loc with Henderson PD was only one of a few dozen according to the Detective who took her statement.