How to Do Plumbing for a Bathroom Sink (Step-by-Step Guide)

Replacing or installing a bathroom sink can feel intimidating—but it’s one of the most satisfying (and cost-saving) DIY plumbing projects you can tackle. Whether you’re upgrading your vanity or fixing a leaky faucet, knowing how to do plumbing for a bathroom sink gives you control, confidence, and big savings (the average plumber charges $200–$500 for…