So I basically DIY everything I can and rebuild houses. I’ve never actually re keyed a lock. Like actually pulled out the tumbler and changed the pins. Lowe’s and depot used to do it for $5 per lock, so in your case, 4 locks, 20$.
Now, on rentals, I’ve been moving toward the quikset quickkey that rekeys the lock with no special tools.
All of this to say, take the locks somewhere to rekey or use the home warranty. It’s not worth your time or money to buy the tools, learn, and diy it.
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