How to Fix a Leaky Sink: A Step-by-Step Guide from Handyman Adam

Got a drip under the sink that’s driving you crazy? Don’t worry—this is one of the most common plumbing issues and one that most homeowners can tackle with just a few tools and a little patience. At Handyman Adam, we're here to make DIY simple and stress-free. Follow these four clear steps to fix a leaky sink and save yourself from water damage (and plumber fees!).

Step 1: Turn Off the Water

Before doing anything, turn off the water supply valves under the sink. You’ll typically find two shut-off valves: one for hot and one for cold. Twist them clockwise until they stop. Then, open the faucet to relieve any remaining pressure.

Step 2: Place a Bucket Under the Pipe

Leaks mean water, so place a bucket or container underneath the P-trap (the curved part of the pipe) to catch any water when you take it apart. This prevents a mess and lets you inspect how much water was trapped inside.

Step 3: Loosen the Slip Nuts

Using channel locks or an adjustable wrench, loosen the slip nuts on either side of the P-trap. Be careful—these might be tight, but you don’t want to crack the fittings. Once loosened, remove the trap and inspect it for cracks, corrosion, or clogs.

Step 4: Replace the Trap

If the trap is damaged or leaking at the seams, replace it with a new one (available at any hardware store). Be sure to use plumber's tape or joint compound on the threads, and hand-tighten the nuts to avoid overtightening. Then reconnect everything and turn the water back on to check for leaks.

Bonus Tip: While you’re down there, check other fittings for signs of wear, and give the whole area a good wipe down. A clean workspace is easier to maintain.

Need a hand or want it done right the first time? Reach out to Handyman Adam—your go-to guy for quick fixes and peace of mind.