Why Is It So Noisy When I Turn On My Water?

Dependable Service Since 1926

water running from a faucet

When you turn on your water, you want it to flow smoothly, quietly, and without stress. So when it comes out: rattling, banging, whistling, humming, or making loud noises, it can be alarming. You should never assume it’s just a fluke. Any kind of surprising sounds are a sign that your plumbing system needs attention. 

Our Denver plumbers at Bell Plumbing, Heating, Cooling & Electrical are here with the pro tips you need to understand the issue. We’re also available for all your plumbing repairs in Denver that you need or in the Centennial area. 

Common Causes of Noisy Water Pipes

Here’s what you need to know about noisy plumbing and when to call a professional plumber.

1. The Water Hammer

Are you experiencing issues with the dreaded water hammer? A loud, hammering banging noise that happens when fast-moving water suddenly stops or changes direction is called a water hammer. You may notice it when you shut off a faucet quickly and the rushing water has nowhere to go. 

The results? It slams and hammers into your pipe walls. It’s not just annoying to listen to. Over time, it can loosen your plumbing fittings, put stress on the joints, and damage your appliances. 

Depending on what’s going on, our Denver plumber may come out to install water hammer arrestors or air chambers to absorb the shock and quiet the system. We may also find that there’s a problem deeper in your pipes, like a clog in your sewer line restricting the flow of water, that needs to be addressed. Whether the solution is hydro jetting or something more complicated, we’ll figure it out and get you all of the information you need to make a decision.

2. Vibrating Pipes

Does it sound like your pipes are vibrating and rattling? If your pipes are loose and not properly secured, they can start rattling when water flows through them. It’s especially noticeable in older plumbing systems or if you’re experiencing high water pressure that shakes your pipes against your walls or floors. Sometimes the fix is as simple as pipe straps or insulating sleeves to stabilize your pipelines. We’ll come out to assess what’s going on and stop the noise and protect your pipes at the same time.

3. Humming and Whining Pipes

Strong water pressure may sound like a win, but if it’s too high, you could damage your plumbing and appliances. The pressure can also cause humming, whining, and vibrating. Residential water systems typically work best at 40–60 psi. Give us a call and we’ll come out to see if you need a new plumbing installation in Denver or an adjustment to your pressure-reducing valve to bring the pressure down to a safer, quieter level.

4. Whistling Pipes

Whistling and screeching pipes are difficult to sleep through and can accumulate in your pipes and plumbing fixtures. When minerals from hard water collect in your pipes and plumbing fixtures, your water flow can sound noisy as it pushes through those narrow passages. Everything from faucets to showerheads and shut-off valves are common trouble spots.

Cleaning or replacing affected fixtures can help solve the problem, but it will come back if your water supply is full of minerals. Our plumbing experts can come out to install water softeners in Centennial, or water filtration systems, to get your water back on track. We’ll help remove minerals and get your water tasting great again.

5. Squealing Plumbing

There’s almost nothing worse than listening to high-pitched squealing when turning on a faucet. In most cases, the washer inside the fixture is probably worn down or has gotten loose and is making noises. You might also have issues with valves that aren’t opening fully and causing turbulence and other noises. 

Our plumbers can silence those noises and get to work replacing your washers, cartridges, or valves and restore smooth water flow—and your sleep.

6. Crackling and Popping

Is it just your hot water making noises like crackling and rumbling pipes? Your water heater may be struggling with sediment buildup at the bottom of the tank and making noises as water bubbles up through the debris and struggles to make its way through your plumbing. Regularly flushing out your water heart tank can remove the sediment, but it is a messy job. Scheduling regular water heater maintenance in Denver is your best option for draining your tank. 

  • Drain your tank
  • Check the anode rod for corrosion
  • Run tests to ensure your unit is working the way it should
  • Check connections and wires
  • Assess whether you need repairs or if a replacement is more cost-effective

Schedule Your Plumbing Service in Denver Today

Enjoy a quieter home where your water flows the way it should and without the stress. The team at Bell is always here to get your plumbing back on track, whether you need a sewer line repair, water heater maintenance, drain cleaning, or more. No matter what’s going on, we’ll figure it out, go over the plan, and give you upfront pricing you can trust. 

Ready to get back to some peace and quiet? Schedule your appointment today!

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Colorado Biz Best of Colorado 2025 winner
CAPS
NKBA logo
Bell Plumbing & Heating Co. BBB Business Review
NATE Logo
HomeAdvisor logo
bell's houzz awards
Tesla ev charging certified installer