What a Noisy or Loud Faucet Means & What You Should Do

No matter how you describe it, a noisy faucet can be alarming. It can also be a sign that your water pipes are in trouble.

If you have a loud faucet, you must contact Core Plumbing, the plumbing specialists in Escondido, CA. We inspect your water system quickly, determine the cause of your noisy faucet, and solve the problem, eliminating the risk of damage to your pipes.

Read on to learn more about what causes a loud faucet and what to do about it.

What Causes a Loud Faucet?

One or more water supply components usually cause a noisy faucet. The wear and tear of regular use and time cause water supply components to wear out. Some parts may have had manufacturer flaws from the beginning that went unnoticed until heavy use brought them to light. Whatever the reason, it is essential to check out all water supply parts to find the noise source.

Troubleshooting Your Noisy Faucet

To find the cause of your loud faucet, the skilled plumbers of Core Plumbing will troubleshoot the water supply system and faucet, step by step. Some of the parts in the water supply system that may cause noise include:

  • The water cartridge in a mixer tap faucet
  • The spindle on a hot-and-cold faucet
  • Rubber seals in the water valves
  • Washers in the water valves

Other issues include problems with the water pressure regulator and even a loose water pipe hitting the wall.

Turn on each faucet separately and let the water run. When you hear the noise, you want to troubleshoot the following parts and operations in your water system to see if they resolve the noise.

Water Supply Valves

Check to ensure the water supply valves for hot and cold water are fully open. If the valves are even partially closed, they could cause any knocking or vibrating noise you hear.

Next, check to see if the valves themselves may be worn out. Look for any signs of wear or corrosion on the outside. First, to check the washers and seals in the water valves, turn off the water supply at the primary source. This may be in your basement or a utility room. Once you’ve shut off the water, run the water until the pipe is clear. Now, you can check the valve washers and seals.

If you’ve worn out the washers or deformed the seals, and they’re loose within the valves, they will not properly seal and unseal when you use the valves, which can cause a vibrating noise. The noise should resolve after replacing the washer and seal in each water supply valve. If not, the water valves themselves may need replacement.

Faulty Faucet Parts

The cause of your loud faucet may be within the faucet itself. Depending on your faucet, fixing the noise may be quickly done with a replacement part.

Hot-and-cold faucets have separate handles for hot and cold water, and within those handles are spindles composed of cartridges and stems. If the components of these spindles become worn out or deformed, it can cause a hammering noise when the water runs.

Mixer faucets are the most commonly seen in kitchens and even some bathrooms. They use a single tap to turn on the water, and turning the fixture to the sides pulls hot or cold water. A mixer faucet has a cartridge inside it that regulates the water, and if it becomes worn out, you may hear the hammer sound.

Both spindles and mixer cartridges are easy to remove and replace. Still, unless you have plumbing experience, it is always wise to call in experienced professionals like Core Plumbing to evaluate your water supply system and make any necessary adjustments, replacements, or installations.

What Does Your Faucet Problem Sound Like?

Often, you can tell what type of faucet issue you are dealing with just by the sound that it makes.

Periodic Thumping

If the knocking, clunking sound you hear happens only periodically, it may be that the metal straps that hold your water pipes in place are too tight. Changes in the temperature within your water pipes will cause them to expand or contract. For example, they expand when hot water flows through your water pipes. When you turn the water off, the pipes cool down and contract.

Tight straps may be the issue if you notice that the noise starts a few minutes after you turn the water on. Have your plumber check your pipes and loosen the straps to see if that resolves the problem.

Continuous Thumping

One of two problems usually causes continuous clunking:

  • Your water meter isn’t large enough, or
  • Your water pressure is too high.

Either of these issues requires a professional plumber to assess the situation and provide an option to solve the problem.

Rapid Clunking

If you turn on your faucet and hear a rapid clunking noise, this is a sign that your pipes could have air trapped inside them. This is not unusual after a major plumbing or water main break repair.

Turn on all of your faucets at once and let the water run for at least five minutes to flush the air from the pipes. In addition, flush all of your toilets. If this does not resolve the rapid clunking noise, call us at Core Plumbing, and we will check out your pipes.


A noisy, loud faucet can be a nuisance or a sign of serious water system problems. Use the tips above to assess your faucet noise issues. Be sure to call the professionals at Core Plumbing to inspect your faucet and water supply system for any serious problems in need of repair or replacement.

The dedicated craftsmen of Core Plumbing are ready to assist you with all of your home plumbing needs. Owned and operated by a father and son team, we take pride in our high-quality service and craftsmanship, serving Escondido and all of the Greater San Diego area.

To learn more about water heater repairs, loud faucet repairs, plumbing troubleshooting, or to book an appointment, call us today at 858-538-6025.