We had been given the wrong keys for a house we just bought and Cote came out within an hour to help us out.
They also recommended putting on a deadbolt for safety and offered some advice on the rest of our locking mechanisms that checked out when I researched it further on the net. (btw - Weiser Smartkeys/locks are very easy to break into)
They could have taken advantage of the opportunity and billed us a ton but the bill for was under $150 for everything.
Friendly and helpful. I'd recommend them.