Blusafe locks are designed to replace your existing lock and can also be installed into a new door. If replacing an existing lock, simply remove the original mechanical lock and replace it with your new Blusafe lock. Installation is meant to be Do It Yourself (DIY) and can be done by using the installation instructions provided with your lock. If you are not sure if your door or lock is suitable, we recommend consulting your dealer or a locksmith to assist with installation.