How to fix a leak under the sink?

June 16, 2023



Tending to a plumbing problem at home is a tremendous nuisance, especially when you have no knowledge or expertise to rely on. Leaky pipes or broken faucets lead to expensive repairs, and extensive water damage can happen if left unattended.

If you believe DIY solutions can work, consider educating yourself on plumbing techniques and tools involved in the task. Consulting with experienced and licensed plumbers in Sacramento is the best way of dealing with plumbing issues. Experts have the training and appropriate tools to carry out the tasks effectively.

Here Are the Ways of Fixing a Leak Under the Sink.

Faucet Leaks

To fix a faucet leak, replace the damaged or old faucet with the new one.

Leaks in the Drain Seal

Follow the below steps to stop a leaky drain seal:

· Remove the worn drain seal using pliers.

· Apply a thin layer of adhesive to the drain.

· Centre the new seal so that it surrounds the drain.

Drain Leaks

A loose nut can cause leaks in the drain, dripping into the cabinet. You can tighten the nut to fix the issue or call professional plumbers in San Jose.

You Can Also Try the Following Steps:

  1. Check the drain outlet flange and confirm the plumber’s putty is there.
  2. Use a rubber gasket seal to wrap around the leaky spot.
  3. Pull out the drain and fix the damaged or cracked components if the leak persists. You might find worn-out or corroded parts that require repair or replacement.

Causes of Leaks Under the Sink

Here are several causes of the leak under the sink to help you identify the problem:

Loose Water Supply Connection

Check the main water supply connection for corrosion or damage. If the leak is constant, it might indicate a problem in the water supply connection.

Clogged P-trap

P-trap is a crucial component under the sink, helping prevent foul smells and promoting smooth drainage flow. However, over time, the P-trap collects debris, food scraps, and gunk, obstructing the proper water drain.

Damaged O-ring

A stem screw that secures the faucet consists of a small disc called an O-ring and does become loose over time, causing the faucet to leak.

Other reasons include corroded valve seats and worn-out washers. If you know the components, you can attempt DIY techniques. However, consulting with the best plumbing company in Sacramento can help if you are unsure about the solution.


Plumbing problems like kitchen sink leaks occur for many reasons, such as blocked P-trap, corroded components, damaged O-ring, etc. Proper maintenance is necessary to maintain the health of your plumbing system. Scheduling an inspection can help keep the plumbing system in your home. These experts offer plumbing solutions, including the best drain cleaning in San Jose.



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