- Working around an occupied, operating property
- Rekeying doors in a planned sequence so a business keeps operating throughout, rather than all at once, takes coordination with the owner's schedule. Properties that need this staged approach, with interim arrangements for doors mid-conversion, add planning time beyond a straightforward, all-at-once installation.
- Any optional upgrade chosen along the way
- Some businesses use the project as an opportunity to also upgrade a door closer, add a keypad to one entry, or reinforce a strike plate. None of this is required for the master key system itself, and each optional item is quoted as its own line.
- Collecting and retiring old keys
- Gathering up old keys that are being replaced, confirming they no longer operate any cylinder, and retiring them from circulation is a small additional step some businesses want included, separate from the core design and cutting work.