Bathroom Sink Drain Cleaning in Miami, FL

A lavatory sink that holds water, drains in a slow swirl or smells. Call to reach an independent plumber who clears bathroom sink drains.

White P-trap and supply valves under a bathroom sink

The short answer

Bathroom sinks clog close to the opening: hair, soap and toothpaste collect on the pop-up stopper rod and in the P-trap. Pulling and cleaning the stopper fixes many slow sinks. If it is still slow, the trap or the drain arm into the wall is packed, and a plumber clears it with a small auger or by taking the trap apart.

The pop-up stopper is the usual suspect. On most sinks it lifts out after loosening a nut behind the drain under the sink. A clump of hair and residue on it is common, and cleaning it often restores normal draining. Cleaning the trap is the next step, with a bucket underneath and the valves left on.

If the sink still drains slowly with a clean stopper and trap, or several sinks are slow, the issue is further in. A sink that gurgles while draining may have a venting problem. Older homes with metal drain arms in the wall can scale up and need a small auger. Persistent slow drains are covered in the slow sink guide.

Common causes

  • Hair on the pop-up rodThe stopper's pivot rod sits in the drain and catches hair like a comb.
  • Soap and toothpaste buildupThick residue coats the trap and narrows the opening over time.
  • A blocked overflowIf the overflow channel is clogged, the sink drains slowly and can smell.
  • A problem in the wallScale in an old drain arm or a poor vent slows the drain past the trap.

What may be inspected

  • The pop-up stopper and its pivot rod
  • The P-trap and slip nuts for buildup and leaks
  • The drain arm into the wall and whether it is metal or PVC
  • Venting, if the sink gurgles or drains in bursts

Safety first

Questions about bathroom sink drain cleaning

Hair and soap on the pop-up stopper and in the trap. Cleaning both usually fixes it.

Under the sink, loosen the nut where the horizontal rod enters the drain, pull the rod out and lift the stopper.

Buildup in the overflow or trap, or a dry trap in a sink that is rarely used. Run water and clean the overflow.

Air is being pulled through the trap. A partial clog or a venting problem is the usual cause.

Yes, the inexpensive barbed strips work well on hair near the stopper. Go gently to avoid pushing debris further.

Often they share a drain in the wall. If both are slow, the clog is past where they join.

Not if the washers are seated and nuts are hand-tight plus a little. Old brittle traps may need replacing.

Mineral scale mostly affects supply fixtures, but soap scum combines with minerals and thickens drain buildup.