Do you need insulation around a dishwasher?

Imagine your dishwasher as the heart of your kitchen, making life easier with sparkling clean dishes. But does it need insulation, like a cozy blanket, to work better? In this blog, we’ll dive into this topic whether “you need insulation around a dishwasher” with clear explanations and easy-to-understand research. Whether you’re a home improvement enthusiast or just curious, we’ve got you covered.

Let’s find out if dishwasher insulation is a must-have or simply a nice-to-have addition to your kitchen setup. Get ready to learn and upgrade your dishwashing experience!

Do you need insulation around a dishwasher?

The necessity of having insulation around your dishwasher depends on several factors, such as the dishwasher model, its location, personal preferences, the dishwasher’s age, and the climate of your area.

1. Dishwasher Model: Some dishwashers come with built-in insulation, eliminating the need for additional insulation. However, if your dishwasher lacks insulation or has damaged insulation, adding some might be beneficial.

2. Location: If your dishwasher is placed in a cabinet or near living areas like bedrooms, insulation can be useful in reducing noise levels.

3. Personal Preferences: Certain people opt to enhance their dishwashers with insulation to achieve better noise reduction and heat retention.

4. Dishwasher Age: Older dishwashers, known for their lower energy efficiency, can be improved by adding insulation to enhance their overall performance.

5. Climate: In colder regions, insulation helps prevent dishwashers from freezing.

6. Noise Level: If your dishwasher is noisy, adding insulation can effectively reduce the noise.

Why install insulation around a dishwasher?

Dishwashers are an indispensable part of most households, but they often come with noise and efficiency issues. By adding insulation to your dishwasher, you can enjoy several benefits that improve its overall performance and save on energy costs.

Advantages of adding insulation to your dishwasher:

  1. Noise reduction

Dishwashers are quite noisy. The gurgling of the drain, as well as the hum and buzz of dishwasher parts, all contribute to the din that occurs within a typical dishwasher. This is why insulation is so important: it muffles the noises made by your dishwasher during its operation. 

  1. Vibration Reduction

Fancy motors and other parts can assist reduce dishwasher vibration, but insulation also plays a role in keeping your dishwasher still. Many dishwashers are housed within wooden cabinets, and the insulation between the cabinets and the dishwasher dampens vibration and prevents your equipment from rattling in its cage. Dishwasher door insulation also prevents rattling at the machine’s front.

  1. Protection from heat damage

 Dishwashers employ additional hot water to finish a wash cycle, transforming the entire machine into a scorching metal cage. The heat from the dishwasher, as well as the steam or water that escapes, can distort wooden cabinetry and damage flooring, resulting in costly repairs. Once again, insulation is beneficial. It forms a protective barrier around the dishwasher, preventing it from hurting surrounding surfaces.

  1.  Increased energy efficiency

Energy efficiency: Because insulated dishwashers retain heat better, they use less energy to heat water, thus saving you money on your power costs.

  1. Safeguards delicate dishes

Insulation provides a barrier against high temperatures, protecting fragile things such as china, glassware, and plastic containers.

What kind of Insulation is best around a dishwasher?

Various types of insulation are commonly used around dishwashers, each offering unique benefits:

1. Fiberglass insulation: Glass fibres and plastic are used to make fibreglass insulation. The R-value of fibreglass is approximately 2.2-4.3 per inch of thickness, making it a good alternative for a noisy dishwasher.

Fibreglass is less expensive than felt and foam, hence it is often used. 

2. Foam insulation: AFoam insulation keeps hot and cold air from mixing and muffles the sound of loud appliances. It also has at least an R-value of 4 (the higher the R-value, the better the insulator).

Foam insulators are installed using a pressurised spray that reaches hard-to-reach areas. It expands and hardens quickly after being sprayed. Because it is self-adhesive, it does not require glue or pins to be applied.

3. Ceramic fiber insulation: Ceramic Fibre Blanket Insulation is spun ceramic fibre that has been needled to give great handling strength for high-temperature insulation applications. Ceramic Insulation Blanket is normally available in three common grades:

  • commercial
  • high-purity
  • zirconia

All grades are lightweight and thermally efficient, resulting in a material with low heat storage and perfect thermal shock resistance. 

4. Reflective insulation: Reflective insulation (also known as foil insulation) is often made of aluminium foil or aluminized polyester. 

A still air layer of at least 25mm (1 inch) is necessary for this form of insulation to reflect radiant heat. It is most effective when kept clean and dust-free. If the layer of still air is still, it provides some insulation. Otherwise, it will remove heat through convection.

When selecting insulation for your dishwasher, consider the following factors:

1. Noise reduction: If you’re concerned about dishwasher noise, opt for insulation with excellent noise reduction properties, such as ceramic fiber insulation.

2. Heat retention: For colder climates, choose insulation that effectively retains heat during the wash cycle, like fiberglass insulation.

3. Cost: Insulation comes at various price points, so find one that fits your budget while meeting your requirements.

4. Ease of installation: Consider the ease of installation; if you’re not confident in DIY installation, select insulation that is straightforward to install.

Once you’ve chosen the appropriate insulation, ensure proper installation to maximize its benefits.

Top 5 insulation for dishwashers available in the market

RankProduct NameFeatures
1Ceramic Fiber Blanket Fireproof Insulation BaffleFireproof, high-temperature resistance, insulated. Rated to 2400F
2Upgraded W11086533 Dishwasher Sound InsulationReplacement part for many dishwashers. Compatible with Whirlpool, Amana, Crosley, Estate, Inglis, Jenn-Air, Kenmore, KitchenAid, Maytag, and Roper. Easy to install
3TITGGI Kaowool Fireproof Ceramic Fiber Insulation BlanketFireproof, easy to use, energy-saving. Made of high-quality materials and durable. Can be used for a variety of purposes.
4gdnspot Ceramic Fiber Insulation BlanketFireproof, easy to use, and energy-saving. Made of high-quality materials and durable. Can be used for a variety of purposes.
5Home Intuition Ceramic Fiber Insulation Blanket SheetEasy to install, can withstand temperatures up to 2500 degrees Fahrenheit. Versatile product that can be used for a variety of purposes. Recommended to wear gloves when handling

1. Ceramic Fiber Blanket Fireproof Insulation Baffle

Ceramic Fiber Insulation is high-temperature resistance, insulated, and fireproof. It is rated to 2400F so that it can maintain complete shape and size after the fire burns.

2. Upgraded W11086533 Dishwasher Sound Insulation

The W11086533 Dishwasher Insulation Blanket is a replacement part for many dishwashers. It is compatible with Whirlpool, Amana, Crosley, Estate, Inglis, Jenn-Air, Kenmore, KitchenAid, Maytag, and Roper. It is easy to install yourself, just be sure to unplug the appliance first.

3. TITGGI Kaowool Fireproof Ceramic Fiber Insulation Blanket 

This fireproof ceramic fiber insulation blanket is rated to 2400F and is made of high-quality materials. It is easy to use and can be applied to a variety of areas, including furnaces, kilns, dishwashers, ovens, wood stoves, welding, foundries, refractory, glass blowing, and jewelry making.

4. gdnspot Ceramic Fiber Insulation Blanket

This insulation blanket is fireproof, easy to use, and energy-saving. The fibre insulation is soft and simple to cut and punch.Its  strong thermal insulation strength to aid in energy savings by limiting heat loss and enhancing product efficiency and life. 

This type of ceramic insulation blanket provides excellent chemical and physical stability and is extremely long-lasting.High-quality insulation materials provide not only thermal insulation but also noise reduction and sound absorption. 

5. Home Intuition Ceramic Fiber Insulation Blanket Sheet 

Ceramic fibre insulation has a heat rating of 2500 degrees Fahrenheit per sheet. When compared to fibreglass board or gel-based thermal insulation material, it is easier and safer to install yourself.

 The carefully designed high heat insulation has a high tensile strength, which helps conserve energy by limiting heat loss, increasing efficiency, and extending the product’s lifespan. For regular use, this ceramic insulation sheet offers a good chemical stability and durability.

How do you insulate around a dishwasher?

Here is a step-by-step guide on how to insulate around a dishwasher:

  1. Ensure safety by unplugging the dishwasher

Piping and electrical systems are included in the wiring. For the electrical connections, turn off the electrical flow to the dishwasher on the circuit board, then unhook the dishwasher wiring.

  1. Disconnect the dishwasher’s water supply

Close the valve by twisting it shut. If you have a standard layout, the valve is located under the washbasin.When disconnecting the water pipe, place a cloth underneath the dishwasher so any water left in the pipe will drain out.

Remove the drainage hose. The drainage will be joined to the bottom of the washbasin in a standard setup.

  1. Remove the Dishwasher from the Cabinet.

If your dishwasher is fastened into the cabinet area, the screws are located at the top, bottom, or side of the dishwasher (you’ll notice them when you pull down the door).

Using a screwdriver, unscrew the dishwasher. Place the screws in a safe place to be screwed back on later.

  1. Retract the Dishwasher’s Front Legs

Twist the front legs using a wrench or pliers to retract them. This will lower the dishwasher, allowing you to wiggle it out of its position.

  1. Get the Dishwasher Out

To avoid scratching your floor when you drag the dishwasher out of its location, place a rag or cardboard underneath it.

To avoid injuring the plumbing and electrical cables, grasp onto them when removing the dishwasher from its location beneath the counter.

  1. Install the New Insulation 

The old insulation on the dishwasher will now be visible. You are allowed to remove it before installing the new insulation. You can either nail, glue, or tape the new insulation to the dishwasher.

  1. Reinstall the dishwasher and reconnect everything.

Replace the dishwasher and reconnect the pipes and electrical wiring. Extend the front legs of your dishwasher with pliers or a wrench (make sure they are level).

Screw the dishwasher back into its cabinet space with the screwdriver.

  1. Put the Dishwashers to the Test

Check the electrical and water systems to confirm that everything is working properly and that nothing is leaking.

For visual guidance, you can watch the video provided in the link.


Insulating your dishwasher is critical for its performance and kitchen safety. A dishwasher, being a heat-generating appliance, can be dangerous if not adequately insulated. There is a risk of personal injury and property damage. 

Consider insulating your home with fibreglass, foam, or felt for a safe and peaceful environment. Even if your dishwasher does not come with insulation, make an effort to obtain it and install it when you install your dishwasher. The insulation will help your dishwasher last longer.

By following the guidelines provided in this article, you can ensure that your dishwasher functions efficiently and effectively over the long term.