Why Are My Pipes So Noisy? Here’s What’s Happening and How to Fix It

Have you ever been sitting at home when—BAM!—you hear a loud bang coming from your walls? It might sound like your house is haunted, but don’t worry, there’s no need to call a ghost hunter. That noise is just your plumbing trying to get your attention!
You are probably wondering, why are my pipes so noisy? Well, if your pipes make strange banging, humming, clicking, or rattling sounds, it’s time to get to the bottom of it. Let’s go over the most common reasons for noisy pipes—and how to fix them.
You can schedule your Plumbing appointment with Western Heating, Air & Plumbing by calling (801) 218-2187 or contacting us online. After all, you have a partner in Western.
1. The Water Hammer Effect
One of the biggest culprits behind noisy pipes is water hammer. This noise happens when water suddenly stops or changes direction, creating a shockwave that causes pipes to bang against walls or other pipes. It often occurs when you turn off a faucet quickly or when appliances like dishwashers and washing machines shut off their water supply.
How to fix it:
- Install water hammer arrestors – These devices absorb the shock and stop the noise.
- Drain your plumbing system – Older homes may have built-in air chambers that absorb pressure, but they can fill with water over time. Draining your pipes can restore the air cushion and quiet things down.
2. High Water Pressure – Great for Showers, Bad for Pipes
We all love a strong, high-pressure shower, but did you know that excessive water pressure can cause your pipes to vibrate? Your water pressure might be too high if your pipes hum or knock when multiple fixtures run.
How to fix it:
- Check your water pressure – A pressure gauge can tell you if it’s above the recommended level (usually 40-60 psi for residential homes).
- Install or adjust a pressure regulator – This device helps stabilize water pressure, preventing stress on your pipes and reducing noise.
3. Loose Pipes – The Rattlers
Your pipes should be securely fastened, but if they aren’t properly supported, they can shake and rattle when water rushes through. Over time, loose pipes can leak or damage, so addressing this issue early is a good idea.
How to fix it:
- Add pipe clamps or brackets to stabilize the pipes.
- Use foam insulation to cushion pipes and minimize movement.
4. Clicking or Tapping – Thermal Expansion
If you hear clicking or tapping sounds when running hot water, thermal expansion is likely the cause. As your pipes heat up, they expand and rub against walls or framing, creating noise.
How to fix it:
- Insulate the pipes to reduce expansion noises.
- Reposition pipes if necessary – If they’re tightly wedged against framing, they may need extra space to expand without rubbing.
5. Popping or Rumbling from the Water Heater
If your water heater sounds like it’s making popcorn, sediment buildup is likely the issue. Over time, minerals and debris settle at the bottom of the tank. When the water heats up, the trapped sediment moves around, creating popping, rumbling, or crackling noises.
How to fix it:
- Flush your water heater regularly – This clears out debris and improves efficiency.
- Consider a water softener – If you have hard water, a softener can help reduce mineral buildup over time.
Still Have Noisy Pipes? Time to Call the Pros!
If you’ve tried these fixes and your pipes are still making a scene, it might be time to bring in the professionals. Persistent noisy pipes could indicate bigger plumbing issues, and we’re here to ensure your home stays peaceful and problem-free.
If you’re unsure or need help, don’t hesitate to call us at (801) 218-2187 or visit our website at WesternHeatingAir.com. We’ll get your pipes to quiet down for good!