All locksmith questions
Residential 4 min readJanuary 30, 2026

Should I Change the Locks When I Move Into a New Home?

Do I really need to change the locks after moving in?

Yes — every time, without exception. You have no idea how many copies of your new house key are floating around: previous owners, their kids, contractors, cleaners, dog walkers, neighbors who watered the plants. Any one of them can walk in tonight.

The fastest fix is a rekey, not a full replacement. A Marvin, NC locksmith can rekey every door in a typical home in 30 minutes for around $90–$160 total, and key them all alike so one new key opens everything.

Add this to your move-in checklist: rekey the front door, back door, garage entry door and any side door. Replace any lock that is loose, damaged or builder-grade Grade 3. Reinforce strike plates with 3-inch screws.

If the home has a smart lock, factory-reset it and create a new admin code immediately. Old user codes from the previous owner often stay active until the lock is reset.

Marvin Locksmith serves Marvin, NC and the nearby towns of Waxhaw, Wesley Chapel and Weddington. Call 704-817-4639 for fast, licensed help.

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