What Are the Common Causes of a Leaky Home Faucet?

It’s a good idea to have your faucets and plumbing inspected at least once a year, more often for homes with older plumbing. If not, you could get a leaky or dripping faucet that may seem like a typical house problem but could cost you so much if not addressed immediately. Watching out for the signs and knowing the main reason for the leaks in your faucet is the first step. Here is what you need to know. 

Causes of Leaking Faucets

Faucets can begin to leak for a variety of reasons. Some of the more common causes of faucet leaks include:

  • Damaged parts, like the washers and seals
  • Old, worn-out parts can begin to leak after years of use
  • Corrosion from minerals, such as calcium
  • Bent and misaligned parts 

There are ways to fix a leaking faucet. However, it’s essential to know whether the leak is small or large. A faucet that is leaking slowly is easier to fix. A leak that is not noticed for a long time and causes a lot of water waste is more complicated.

Even if you do not notice it, a slow leak can cause a small mess on the floor. It is advisable to take care of a slow leak as soon as it is noticed. A slow leak may not seem problematic, but it can cause problems eventually.

If you have a leaky faucet, you may want to have these parts examined by a professional plumber:

Problematic O-Ring

There are numerous reasons why faucets leak, but the most common cause is the faulty O-rings surrounding the spout. These O-rings are found in faucets like the hinge faucet and cartridge faucet. The O-ring allows the faucet’s gasket to move smoothly and adjust to a variety of sink sizes. When the O-rings are worn out, there is a possibility that your faucet will leak.

A Worn-Out Washer

Another common leak problem with faucets is when the washer on the tap is worn out. If the washer is worn out, it won’t have the proper tension it needs to prevent a leak. A worn-out washer will allow water to leak through to the sink.

Rusted Screws

Another common mistake when fixing a leaking faucet is tightening the handle without first uninstalling the handle. When you tighten the grip, the gasket will break easily. It can cause the faucet to leak.

Water Pressure Problems

Often, faucets leak because of too much pressure. Because most faucets are fixed to the sink, the force from water pressure can cause the faucet to leak.

A Leaker From the Bottom

If the sink does not have a gap between the sink and the faucet, it can cause a leak. That will happen when the water pressure is too much; the gasket will break.

Corroded Valve Seat

The valve seat is responsible for the tight seal of the faucet. If the valve seat is not tight enough, there is a possibility that water will leak.

Broken or Cracked Pipes

If the pipes are old and are made of clay or lead, then there is a possibility that the lines can crack and cause the faucet to leak. For large leaks, you may need a plumber to fix them. Be sure to have the leak fixed before it causes damage to your floors, cabinets, or even your walls.


Leaks can start small and then become big problems if they are not fixed immediately. It is better to fix it as soon as you notice a leak. You don’t have to spend hours or even days to figure out the problem. This way, you can save time and money.

If you have a leaky or dripping faucet, arrange an appointment with Professor Plumb. We are licensed, insured, bonded, and backed by more than two decades of experience. We offer plumbing and gas services, including new installations and repairs in Columbiana, AL. Contact us today! 

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