How to Change the Locks on Your New House
Briefly

Replacing locks after moving in reduces the risk that previously lost or copied keys grant unauthorized access and creates an opportunity to upgrade to smart or more attractive hardware. Every exterior door requires a new lock, not just the main entrance, so inventory all exterior doors and buy a lock for each. Prefer new locks that match the brand of existing hardware for better fit. Typical tools are a measuring tape to confirm the lock fits the opening and a screwdriver to remove old hardware and install the replacement lock.
While the existing locks on your house probably work just fine, it's still recommended to replace them after moving in for security reasons. If the previous owner ever lost their keys and kept the same locks, a replica could be floating around, which could be a problem if they ever fell into the wrong hands. It's also an opportunity to upgrade - maybe you want a smart lock for convenience or a style that better matches your home's curb appeal .
When buying new locks, an important detail to keep in mind is the brand of the old ones. In many cases, different locks from the same brand will fit better than those from another company. In terms of tools, this is a relatively simple project. You should only need a measuring tape to make sure the new lock fits the opening and a screwdriver to remove the old lock and install the new one.
Read at Redfin | Real Estate Tips for Home Buying, Selling & More
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