Leaks under the sink are no fun. They can cause a lot of damage. However, they are usually easy to fix. There are many different leaks you could have, from water-supply leaks to drain leaks. These leaks may be easy enough for you to repair yourself, or they may be more complicated and require professional help. My Plumber Plus offers tips for figuring out the cause of a leaking sink and advice on how to properly address the issue.
Identifying the Cause of a Sink Leak
If you find the floor in front of your sink or the cabinet wet, chances are you have a leak. If you suspect you have a leak, grab a flashlight and look under your sink. Some leaks are easy to see and find; others require filling the sink and letting the water sit for a while.
Types Of Sink Leaks
- Water-Supply Leaks: A common source for leaks is the shut-off valves. These are a common place for drips because the compression fittings become loose and are not as tight as they should be. Some of these could be hard to fix because of their location.
- Drain Leaks: These leaks can result from loose connections, corrosion, or a blockage. Some of these are very easy to fix, such as tightening compression nuts on plastic P-traps by hand. Metal traps could be more of a problem if they become corroded. If they are corroded, you will need to replace the trap.
- Other Leaks: Not all leaks are easy to detect. A sink drain leak can be hard to find because it only leaks when the sink is full of water. Faucet leaks can be troublesome as well if the water is draining down the back of the faucet, causing it to drain underneath the sink. To fix a faucet, you may have to disassemble and replace one or two gaskets or washers.
Most sink leaks are easy enough for you to find and fix yourself. However, if you are unfamiliar with your sink or the pipes beneath it, it is best to call a professional. If you need help, call My Plumber today. Our Fairfax plumbing professionals can help with any sink leak. Our techs can also help with any of your other plumbing needs, no matter how big or small.
How to Fix a Leaking Sink
Fixing a leaking sink starts with identifying the source of the leak. An under-sink leak can develop in several areas, including the drain, water supply lines, or the faucet itself. Before starting any repairs, turn off the water supply to prevent further damage and give yourself a clean, safe workspace.
If you notice a leak under the sink, begin by checking the connections on the drain and supply lines. A kitchen sink drain leaking is often caused by loose fittings or worn-out washers, which can usually be tightened or replaced with basic tools. For more persistent leaks, you may need to disassemble the drain components and apply plumber’s tape or replace damaged parts.
If your sink faucet is leaking, the issue may be coming from internal components such as a worn cartridge or O-ring. In this case, removing the faucet handle and replacing the faulty parts can often resolve the problem. Keep in mind that even a small sink leaking issue can worsen over time if not addressed properly.
For ongoing issues or more complex repairs, it’s best to consult a professional. A persistent under-sink leak may indicate deeper plumbing problems that require expert diagnosis to prevent further damage to your home.
Let Our Professional Plumbers Address Your Issue
Don’t let a leaking sink turn into a bigger problem. Contact My Plumber Heating and Cooling today and let our experienced technicians get your sink running leak-free. Whether it’s a minor drip or a more complex issue under the sink, our team is ready to provide fast, reliable service you can trust.