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How to Soundproof a Pipe

how to soundproof a room

Pipe Soundproofing

Did you stop singing in the shower but still wake up the kids when it’s time to get ready? If noisy water pipes are to blame, we have the solution.

Pipes, a necessary part of a house, they are kept hidden behind walls and ceilings, away from the living space. But these walls and ceilings provide little soundproofing. While pipe soundproofing is recommended during construction, any exposed or accessible existing pipe can be treated. Post-construction treatment is especially common in older homes that still use cast iron pipes. Copper and polyvinyl chloride (PVC) piping, which also create unwanted noise, can also be treated after construction. In other words, if booming pipes are preventing you from enjoying peace in your home, you have options for water pipe noise reduction. We’ll show you how to make water pipes quieter, and we’ll share our recommended sound insulation products you can use to hush those pipes.

Recommended Methods

Wrapping pipes with a dense vinyl material will block the noise and dampen the vibrations. We recommend Quiet Wrap™ Pipe Soundproofing Wrap, which will significantly reduce noise created by pipes.

If the pipe is encased in drywall, use a sound absorption product like Quiet Batt® Soundproofing Insulation. This dense, recycled, cotton material can be installed around the pipe in the empty space of the drywall, eliminating the sound vibrations made by the piping. Quiet Batt® Soundproofing Insulation, not only reduces sound, it also insulates.

Pipe Soundproofing Products

  • Pipe Soundproofing BUY NOW

    Quiet Wrap™ Pipe Soundproofing Wrap

    Quiet Wrap™ Pipe Soundproofing Wrap will significantly reduce noise emitted from waste water and drainage pipes. Quiet Wrap™ Pipe Soundproofing Wrap is an industrial grade barrier

    Quiet Wrap™ Pipe Soundproofing Wrap will significantly reduce noise emitted from waste water and drainage pipes. Quiet Wrap™ Pipe Soundproofing Wrap is an industrial grade barrier / foam composite manufactured using a 1/2 lb., high density sound barrier membrane, laminated to ¼ in. acoustic grade polyurethane foam with a “peel and place” adhesive backing. The Barrier layer blocks sounds commonly emitted from water running through pipes. The foam tackles the pipe noise two different ways. First, the foam isolates the barrier layer, which improves the noise blocking performance of the barrier layer. Second, the adhesive backed foam reduces vibration caused by the water running through the pipes. Reducing water pipe vibration will decrease the perceived noise. Quiet Wrap™ Pipe Soundproofing Wrap is easy to install and will work on any size PVC or cast iron waste water pipes. Quiet Wrap™ Pipe Soundproofing Wrap also quiets noisy air ducts common in HVAC applications. This product is effective to temperatures up to 140° F and carries a flammability rating of UL 94 HF-1.

  • Quiet Barrier Specialty Composite Close Up BUY NOW

    Quiet Barrier™ Specialty Composite

    Quiet Barrier™ Specialty Composite is a four layer soundproofing composite used in construction, automotive, heavy machinery and marine industries to reduce noise transfer from structural borne

    Quiet Barrier™ Specialty Composite blocks sound with four distinct layers of protection for maximum soundproofing power. The top polyester film layer resists heat, high-frequency sound and tearing. It is made so you can easily wipe it clean for simple maintenance. Underneath this layer is a thick foam that absorbs sound frequencies at all levels. This acoustic foam both cushions and insulates the barrier layer beneath. That barrier is our Quiet . . .

  • Soundproofing_ QBHD_Composite_Install BUY NOW

    Quiet Barrier™ HD Soundproofing Composite

    Quiet Barrier™ HD Soundproofing Composites (1/4 in. 2 lb. barrier + 1 in. foam) are industrial grade products that stop sound from entering or leaving a

    Quiet Barrier™ HD soundproofing composite is our thicker composite, consisting of ¼ inch of industrial grade soundproofing barrier combined with 1 inch of acoustic grade, polyurethane foam. This combination works to insulate your space from sound in two ways. First, the barrier itself, the mass and material designed to prevent most sound from getting through, and, second, the acoustic foam, which adds mass and sound blocking but also isolates the . . .

  • composite install BUY NOW

    Quiet Barrier™ HD Soundproofing Composite (w/PSA)

    Quiet Barrier™ HD Soundproofing Composites (1/4 in. 2 lb. barrier + 1 in. foam) are industrial grade products that stop sound from entering or leaving a

    Quiet Barrier™ HD Soundproofing Composite provides a dense, powerful defense against unwanted transmission of sound. This acoustic-grade composite with a full ¼ inch of sound blocking barrier backed by an inch of polyurethane foam soundproofing can prevent most sound from getting through, enhancing your privacy and preventing distracting external sounds to a level you might not have thought possible. The thick barrier layer blocks most sound from getting through. The . . .

  • Soundproofing_QBMD_Composite_close_up_175 BUY NOW

    Quiet Barrier™ MD Soundproofing Composite

    Quiet Barrier™ MD Soundproofing Composites (1/8 in. 1 lb. barrier + 1 in. foam) are industrial grade products that stop sound from entering or leaving a

    Quiet Barrier™ MD Soundproofing Composite is our medium thickness noise control composite, combining ⅛ inch of the powerful noise control material contained in our soundproof barrier membrane with 1 inch of sound-controlling polyurethane foam. These two materials work in concert to maximize your noise control benefit, with the foam serving as a sound dampener and decoupler, isolating the barrier from vibrations by separating it from the mounting surface, and the . . .

  • Soundproofing_QBMD_Composite_close_up_175-01 BUY NOW

    Quiet Barrier™ MD Soundproofing Composite (w/PSA)

    Quiet Barrier™ MD Soundproofing Composites (1/8 in. 1 lb. barrier + 1 in. foam) are industrial grade products that stop sound from entering or leaving a

    For a cost-effective solution to a variety of noise control applications, try our Quiet Barrier™ MD Soundproofing Composite with PSA. This amazing noise control composite works in two ways: First, with ⅛ inch of superior noise control material in our sound blocking membrane. Second, with an inch of acoustical-grade foam made of polyurethane, which adds soundproofing while it isolates the barrier layer from vibrations that could create noise and compromise . . .

  • Soundproofing_QBLD_Composite_close_up_175-01 BUY NOW

    Quiet Barrier™ LD Soundproofing Composite

    Quiet Barrier™ LD Soundproofing Composites (1/16 in. 1/2 lb. barrier + 1/2 in. foam) are industrial grade products that stop sound from entering or leaving a

    For an economical, effective soundproofing solution, try Quiet Barrier™ LD Soundproofing Composite from Soundproof Cow. This soundproofing composite is thin and lightweight enough to go virtually anywhere, but make no mistake, the 1/16-inch thin soundproofing material in our Quiet Barrier™ membrane provides plenty of sound blocking power, especially in combination with our acoustic foam made of sound-dampening polyurethane. The foam enhances the barrier’s natural soundproofing properties while isolating it from . . .

  • Soundproofing_QBLD_Composite_close_up_175 BUY NOW

    Quiet Barrier™ LD Soundproofing Composite (w/PSA)

    Quiet Barrier™ LD Soundproofing Composites (1/16 in. 1/2 lb. barrier + 1/2 in. foam) are industrial grade products that stop sound from entering or leaving a

    Quiet Barrier™ LD Soundproofing Composite with PSA is the ideal soundproofing solution for Do-It-Yourself-ers and construction experts alike. This thin soundproofing composite with PSA is affordable, versatile, easy to install and features amazing sound-blocking power. It starts with the 1/16-inch thin soundproofing material with PSA, powerful enough to block most sound from getting in or out. That soundproofing power is enhanced by a full inch of acoustical-grade polyurethane foam. Together, . . .

  • soundproofing qbfc roll BUY NOW

    Quiet Barrier™ Fiberglass Composite

    Quiet Barrier™ Fiberglass Composite is a mechanically bound fiberglass blanket combined with our Quiet Barrier™ soundproofing material and a reinforced polyester film facing creating a Class

    If you are in need of fiberglass soundproofing barriers for your home or business, take a look at Quiet Barrier™ Fiberglass Composite. The Quiet Barrier™ Fiberglass Composite is a fiberglass blanket containing our proven Quiet Barrier™ soundproofing material bound with a reinforced polyester film facing for a Class A™ panel that can serve a variety of needs. Easy to Install for Your Soundproofing Requirements This fiberglass soundproofing barrier is an . . .

  • RoadBlockR BUY NOW

    RoadBlockR Sound Deadening Material

    RoadBlockR is a premium car soundproofing product. Serious car soundproofing requires serious soundproofing material. RoadBlockR was engineered to provide this benefit. Originally designed as an industrial

    RoadBlockR is a premium car soundproofing product. Serious car soundproofing requires serious soundproofing material. RoadBlockR™ was engineered to provide this benefit. Originally designed as an industrial sound damping material for applications that need extreme performance, it is well suited to the demanding car enthusiast. Whether you are trying to improve the quality of your car stereo or give your vehicle that “luxury car” feel, RoadBlockR is the ideal material. By . . .


How to Soundproof a Pipe

What Causes Noisy Water Pipes?

Water pipe noise can be tricky, especially since pipes are usually out of sight. However, sound is created when an object vibrates and sends sound waves to your ears. If a pipe bangs against the wall as water flows through it, or whistles because there’s mineral buildup inside, you may hear unwanted sounds or noise.

There are several possibilities as to why your pipes are noisy. First, it helps to envision the plumbing system in your home. You’ll find two main types of plumbing systems in a house — the water supply system and the drainage system. Your water pipe system brings in treated water which you use in your sink, shower, toilet, dishwasher and washing machine. The water that enters is under pressure so that it can travel to the upstairs bathroom or around a corner to the kitchen sink. The pressure is one of the reasons water supply pipes might be noisy. On the other hand, drainpipes use gravity to take wastewater from the home and usually aren’t as noisy unless they bang against the water pipes.

We’ll explore a few of the noisy pipe possibilities here. It’s important to figure out the cause of the noise before making any changes to your home or installing pipe sound insulation. Whether your water pipes are made of plastic, copper, iron or steel, pipe noise may be caused by any of the following.

1. Water Hammer

Water hammer is the term used to describe knocking noises you hear when a valve closes in a high-pressure water line. You might hear water hammer when you quickly shut off a faucet or when an appliance suddenly closes a water valve. As an example, imagine your washing machine. When you do laundry, your washing machine quickly fills with water that travels through a pipe via high pressure. When the washing machine fills up, the water valve abruptly closes, and the water has nowhere to go. As a result, the high-pressure water may slam against the pipes and cause them to move around and bang against the wall or other pipes, producing a racket. For this reason, water hammer can also lead to pipe damage if it’s left unaddressed.

Water Hammer

If water hammer is the source of pipe noise in your home, you’ll want to take several steps to eliminate the issue. You might need to drain the air chamber — a shock-absorbing pipe located near the water valve — or install a water hammer arrestor to absorb jolts. Water hammer may also be a sign of extreme water pressure. Generally, the water pressure should not be above 60 pounds per square inch (psi), and you may need to lower the water pressure. Finally, you can soundproof water pipes with pipe insulation.

2. Copper Pipes

If you have copper water pipes, you might notice ticking sounds whenever you use hot water. This is because hot water causes copper pipes to expand and hit the surrounding pipes or other objects. Once the pipes cool, they contract and may produce a creaking sound. You can try to reduce copper pipe noise by turning down the thermostat on your water heater. According to the U.S. Department of Energy, most household water heaters only need to be set at 120 F.

If turning down the water heater isn’t an option or doesn’t quiet water pipes, consider soundproofing water pipes with pipe insulation.

3. Loose Pipes

Pipes that are loosely attached can vibrate due to water pressure and cause knocking noises. You can reduce noise by securing the pipes with straps or tightening loose straps, or by wrapping pipes with insulation.

How to Reduce Noise in Water Pipes

If noisy pipes wake you up at night or make you wonder if an intruder broke in, it’s time to take action. Noise makes a home a little less homey, but the good news is that it doesn’t have to stay that way.

If you’re ready to soundproof your water pipes, you have two main options. You can either wrap the pipes with noise blocking materials or fill the cavities around the pipes with sound absorption products. Using both noise blocking and sound absorption materials can eliminate the sounds of pipes in your home.

It’s best to soundproof pipes when walls are open before drywall is installed, but we understand that’s not always the situation. You can apply the following methods to any exposed pipes you can find.

1. Wrap Pipes

Wrapping pipes with a soundproofing material will block the noise and dampen the vibrations. You might wrap noisy copper pipes, for example, to muffle the noise of expanding and contracting due to temperature changes. We recommend applying our Quiet Wrap™ Pipe Soundproofing Wrap. To wrap noisy pipes with Quiet Wrap™, follow these steps:

  • Clean the pipe to make sure it’s free of dirt or dust.
  • Measure the pipe’s length to determine how much material you need.
  • Cut the pipe sound insulation to the appropriate size using a utility knife, or cut the material as you wrap it around the pipe.
  • Start at one end of the pipe.
  • Peel back the edge of the blue peel-and-stick backing to reveal 4 to 5 inches of the backing.
  • Hold the material at a slight angle and press firmly to make sure it adheres to the pipe properly.
  • Work your way down the pipe peeling the peel-and-stick backing and pressing firmly.
  • If the material wrinkles, simply cut the material and start over following the above steps until the pipe is completely covered.

By wrapping sound deadening insulation around your pipes, you’ll reduce noise and decrease the chance of pipes freezing in the winter.

2. Fill Wall Cavity

When deciding how to soundproof a pipe, you may be limited by the construction of the building where the pipe is located. Sometimes it’s not feasible to try to access the pipe directly to try to wrap it in soundproofing wrap.

In the past, people may have been reluctant to attempt to dull sound from pipes by filling the cavities in the wall because the insulation available often did not fit the space well and had an undesirable chemical composition. Since Quiet Batt™Soundproofing Insulation is mostly recycled cotton material, you can handle it without gloves and easily place it where it needs to go without concerns that you should be utilizing a more natural material.

It is also designed to fit tightly in the cavities for maximum dampening of sound from the pipes. Quiet Batt™ Soundproofing Insulation has a Class A flammability rating so you can install it in your walls with peace of mind. To install Quiet Batt™,follow these steps:

  • Measure the area to be covered with Quiet Batt™.
  • Mark the Quiet Batt™ insulation appropriately using a tape measure, straight edge and marker.
  • Cut the material using a utility knife or serrated blade .
  • Press the Quiet Batt™ into the stud or joist bay and allow friction to keep it in place.

Quiet Batt™ Soundproofing Insulation

Pipe Soundproofing Products

At Soundproofcow.com, we’re ready to get your pipe soundproofing project mooving. We offer a range of easy-to-install soundproofing solutions to help you quiet water pipes faster than a running faucet. Here are our recommended products to put an end to the banging, ticking and rattling.

1. Quiet Wrap™ Pipe Soundproofing Wrap

Our Quiet Wrap™ Pipe Soundproofing Wrap will significantly reduce the noise created by pipes. This is an industrial grade composite manufactured with a high-density sound barrier membrane and laminated with polyurethane foam. With its peel-and-stick backing, installation is quick and easy.

One of the reasons why Quiet Wrap™ Pipe Soundproofing Wrap is so effective at pipe soundproofing is because of the way water pipes tend to create sound. Much of the noise that noisy water pipes generate comes from the impact-related, vibrational noise of water beating against the walls of the pipe as it rushes through.

This is why the polyurethane foam layer is so critical to Quiet Wrap™ Pipe Soundproofing Wrap’s effective soundproofing. While the barrier blocks most standard noise, the layer of polyurethane foam both isolates the barrier, making it a more effective sound blocker, and reduces the vibration of the pipe, deadening the impact noise.

The result is a much quieter or even unnoticeable pipe sound. Quiet Wrap™ Pipe Soundproofing Wrap is suitable for any size water pipes, PVC pipes or cast iron, so you can order with confidence to quiet your plumbing noise.

2. Quiet Barrier™ Specialty Composite

Our Quiet Barrier™ Specialty Composite features four unique layers for extreme soundproofing power. The top layer is a polyester film which resists heat, tearing and high-frequency sound. This layer makes Quiet Barrier™ Specialty Composite an excellent choice where heat is a concern.

Beneath the film is a 3/4-inch foam layer that absorbs sound frequencies at all levels. In other words, whether your pipes whistle, squeak or rumble like thunder, this foam’s got you covered.

Next, a layer of our Quiet Barrier™ LD soundproofing product blocks sounds like a pro. Finally, the last layer of foam separates the sound-blocking layer from the mounting surface to enhance its soundproofing capabilities.

This is our top soundproofing composite, which is suitable for extreme conditions in need of noise reduction. With its tear-resistant surface, it can stand up against pipe movement, and you can easily install this composite anywhere whether you want to wedge it between noisy pipes or mount it to the wall. If you choose the material without pressure sensitive adhesive (PSA), you can place the composite where you wish using PL® Premium Polyurethane Construction Adhesive. Just make sure to seal the edges where different pieces meet using reinforced aluminum tape. You’ll want the area to be covered 100% to ensure maximum noise reduction.

Quiet Barrier™ Specialty Composite

If you want to skip the glue, choose our Quiet Barrier™ Specialty Composite With PSA for even easier installation. With the peel-and-stick backing, all you need to do is cut the size and shape you want, peel the back, and stick it in place. You’ll still want to cover seams with reinforced aluminum tape after installation to ensure superior soundproofing.

3. Quiet Barrier™ Soundproofing Composite

Our Quiet Barrier™ Soundproofing Composite is similar to our specialty composite in that it both blocks and absorbs noise, but it does not include the film face. We offer the following levels of thickness to meet your soundproofing needs:

  • Quiet Barrier™ HD Soundproofing Composite: Our Quiet Barrier™ HD Soundproofing Composite with or without a PSA backing is the thickest of our three soundproofing composites. With Quiet Barrier™ HD composite, you get a 1/4-inch soundproofing barrier and 1 inch of acoustic foam for an overall sound transmission class (STC) rating of 32. The top layer is the barrier itself, which adds mass and functions as a noise blocker. The second layer is an acoustic foam which adds mass and blocks noise, as well as separates the barrier from the mounting surface to keep vibrations away from the barrier. The result is a soundproofing composite that works.
  • Quiet Barrier™ MD Soundproofing Composite: Our Quiet Barrier MD™ Soundproofing Composite is our medium thickness composite. With this product, you’ll find a 1/8-inch barrier and 1 inch of acoustic foam with an overall STC rating of 27. Because the Quiet Barrier MD™ composite is thinner and about half the weight of the HD™ composite, it may be the better choice for tight spaces, or where greater flexibility is needed. Choose our Quiet Barrier MD™ Soundproofing Composite With PSA to make installation a cinch.
  • Quiet Barrier™ LD Soundproofing Composite: Our Quiet Barrier LD™ Soundproofing Composite is lightweight and thinner than the other two composites, making it suitable for just about any application. For example, you might wrap Quiet Barrier LD™ composite around the ends of pipes emerging from the walls. With the Quiet Barrier LD™ composite, you’ll get a 1/16-inch barrier, a 1/2 inch of acoustic foam and a 20 STC rating. Like our other composites, our Quiet Barrier LD™ Soundproofing Composite is also available with PSA, making this budget-friendly soundproofing solution udderly convenient.

One of thinner composites may be the ideal solution for water pipe sound insulation or to keep pipes from hitting other objects since they’re more flexible, while the HD composite may be best for filling in wall cavities that house noisy pipes.

4. Quiet Barrier™ Fiberglass Composite

Our Quiet Barrier™ Fiberglass Composite includes 1/8 inch of Quiet Barrier™, a polyester film face and 1 inch of quilted acoustic fiberglass. Our fiberglass composite is extremely flexible, making it a great choice for silencing noisy pipes in tight or hard-to-reach spaces. You can install our Quiet Barrier™ Fiberglass Composite using PL® Premium Polyurethane Construction Adhesive and reinforced aluminum tape. Another bonus to using fiberglass composite is its ability to keep heat in during the winter and keep heat out during the summer. Therefore, if you soundproof noisy water pipes with fiberglass composite, you’ll enjoy more peace and greater comfort all around.

5. RoadBlockR™ Sound Deadening Material

RoadBlockR™ is our premium car soundproofing product but isn’t just for the road. With a specially formulated rubber-based layer and polished film facing, RoadBlockR™ is a high-performing noise dampening material that’s barely noticeable to the eye. It’s also resistant to water, making it a good choice for moisture-prone areas.

This material was designed to meet the demands of extreme situations and reduce noise in any metal application. Commonly used in the automotive, marine and construction industries to line compartments and enclosures, RoadBlockR™ can easily be applied to water pipes. RoadBlockR™ is only 0.078 inches thick, so you shouldn’t have trouble wrapping this sound deadening pipe insulation around water supply lines or fitting it into tight spaces. Plus, it’s thinness makes it easy to cut for custom shapes and sizes. If you’re looking for an affordable, effective and easy-to-install soundproofing solution, consider RoadBlockR™.

RoadBlockR™ Sound Deadening Material

Buy Pipe Sound Insulation at Soundproof Cow

If you’re wondering how to quiet noisy water pipes, look no further than the Cow. At Soundproofcow.com, we understand the value of a good night’s sleep and agree with you — your home is your haven. Whether loud pipes or rowdy neighbors are keeping you up at night, we have soundproofing solutions to meet your unique needs and budget.

Our customers know they can depend on us for high-quality soundproofing products and expert advice. Browse our products to soundproof your water pipes, or contact us if you need a helping hoof. Not sure if noise is coming from water pipes or another source? Take our free acoustic analysis, and we’ll help you figure it out.

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