Do you need to repair a leak under the bathroom sink? If this is the case, under-sink leaks can cause significant damage. They are usually simple to locate and repair. The source of the water leakage could be the drainpipes, supply hoses, or faucets, causing damage to the cabinet or the floor. When you inspect under the sink with a flashlight, you might notice the source. Continue reading if you want to learn more in-depth.