Yes! You can change a lock by yourself. Itβs actually pretty easy, but it all depends on the type of lock youβre going to change. Simple locks, like regular door locks or old-style ones, can usually be changed with just a screwdriver, a matching lock set, and a bit of strength to loosen the bolts. However, if youβre planning to change technical locks, like keyless entry systems or smart locks, itβs better to call a professional locksmith. Because even a small mistake can damage the lockβs internal mechanism completely, which might make it unusable. For normal or old-style door locks, a screwdriver, a matching lock set, and a little effortβthatβs all you need.