Kitchen faucet installation and bathroom faucet installation both come down to the same underlying question: does the new fixture match what's already feeding it. A kitchen sink typically runs a larger supply line and may have a garbage disposal to work around, while a bathroom faucet ties into a smaller shutoff valve and often a shared drain line. A new faucet installation where nothing existed before is its own case entirely, since a supply line and shutoff have to be run from scratch instead of reused. We check what's already there before the fixture goes in, then set it so it's sealed and tested before we call it done.