10 best window air conditioner covers

Window air conditioner covers are protective accessories used to shield window air conditioning units during periods when they are not in use. These covers serve several purposes, including protecting the unit from adverse weather conditions, reducing energy loss, preventing debris and dirt buildup, and prolonging the lifespan of the air conditioner.

Typically made from durable materials like polyester or vinyl, these covers are designed to fit snugly over the air conditioner unit and secure with straps or elastic bands. The cover provides a barrier against harsh elements such as rain, snow, and wind, helping to prevent rust, corrosion, and damage to the unit's exterior.

During colder months when the air conditioner is not needed, covering the unit helps to insulate it and reduce energy loss. This can contribute to lower heating costs and keep the indoor space more energy-efficient.

In addition to protection and energy savings, window air conditioner covers also assist in keeping the unit clean by preventing the accumulation of dust, leaves, and other debris. This helps maintain optimal performance when the air conditioner is used again.

When choosing a window air conditioner cover, it's important to select the appropriate size that fits your specific air conditioner unit.Proper sizing ensures a snug fit and effective protection. Additionally, look for covers with features like ventilation flaps to prevent condensation and mildew.

Overall, using a window air conditioner cover is a practical way to maintain the efficiency and longevity of your air conditioning unit while keeping it protected and clean during off-season periods.

Below you can find our editor's choice of the best window air conditioner covers on the market
  

Breeze Stop Surround Insulation Panels White for Window AC Unit Indoor Air Conditioner Cover for Winter and Summer

Based on 22 reviews Check latest price

Product description

Breeze Stop Surround Window AC Insulation is composed of three panels that connect around a window AC to provide both insulation and a clean built-in look. The side panels can be cut to size with a scissors and have an adhesive flap that connects the panels to AC. The top panel form fits the top of the AC to provide insulation in areas that no other foam panels currently available on the market do. Although all the panels have adhesive flaps to connect to each other and the window AC the panels should stay in place without applying the adhesive as well. This allows for super easy removal without leaving over any residue on the AC from the adhesive. At BreezeStop we are committed to finding new and innovative ways to improve home insulation and help conserve energy. Our products are patented or patent pending and we manufacture in the USA.

  • Insulation is composed of a 1” thick layer of insulating foam with a sleek vinyl cover that gives the gives the window AC a clean built-in look.
  • The panels cover the existing pull out plastic side panels (not designed to replace them) and provide a sleek easy to clean surface.
  • The insulation kit fits window frame widths 36” or smaller. Panels are cut to size with scissors. The top piece is designed to fit under most window handles.
  • The adhesive flaps connect to the AC only, and the insulation should stay firmly in place without using any of the adhesive at all.
  • Breeze Stop’s patented or patent pending home insulation products perform well in both the cold winter and warm summer months. Eliminating cold drafts, heat, noise, light, and humidity. Made in the USA.

Luxiv Window Air Conditioner Cover Outdoor, Outside Window AC Unit Cover Black Dust-Proof Waterproof AC Cover Outdoor Window AC Protection Cover (21Wx16Dx15H)

Based on 1 reviews Check latest price

Product description





Basic information

✔Material: 420D waterproof oxford cloth

✔Size: 21W * 16D* 15H inches (53*40*38cm)

✔Color: Black

✔Weight: 220g

Product Feature



1,420D Waterproof oxford cloth, better waterproof effect,

2,Eay to use, washable and durable.

3,Size suit for most of standard window ac unit 3,000 - 7,000 BTU

4,Two adjustable strap buckle, keep the cover from falling

5,Protect window ac unit keep from uv and rust

6,Isolate cold air, rain, and snow, reduce heating costs,



Warm Tips

1,Please make this product stay away from fire, toxic, flammable and danger things.

2,Please choose our product accoring to your air conditioner size.

3,In order to a long time use, we suggest clean it regularly.



Ways of use

1,No need to remove the air conditioner, directly cover the outside part

2,Cover the entire air conditioner after removing the air conditioner from window

  • 【420D Waterproof Material】: Window air conditioner cover are made of high quality 420D waterproof oxford cloth, with a silver inner layer, better waterproof effect, washable and durable.
  • 【Please Choose the Right Size】: Window AC unit cover size is 21W * 16D* 15H inches (53*40*38cm), suit for most of standard window ac unit 3,000 - 7,000 BTU.
  • 【Double Straps Design】: Outdoor window AC protection cover has two adjustable straps with snap buckle, make the cover not easy being falling due to wind, easy to put on and take off.
  • 【Isolate Cold Air and Dust】: Black window AC cover not only could protect the ac unit from uv, dust, but also could keep your room warm in winter, prevent the dust, rain, snow enter to indoor.
  • 【Please Note】:Please choose our product accoring to your air conditioner size. In order to a long time use, we suggest clean it regularly.

User questions & answers

Question: my window ac is 19"wx15"dx141/2'h will this fit
Answer: The cover measurements are presented with product description.
Question: Does this product keep the light from shining through the unit
Answer: yes, this is a black cover, could prevent the sun.
Question: My winsow ac unit is 14 x 18 x 14, which size i should choose
Answer: The small size will suit for your unit, 21 * 16 * 15 .
Question: I need this in a more subdued color. Black would show like a sore thumb. Any suggestions
Answer: Truly feel very sorry about that, we just have black now, because black is the most resistant to dirt for outdoor

Product features

Product Feature

  1. 420D Waterproof oxford cloth, better waterproof effect,
  2. Eay to use, washable and durable.
  3. Size suit for most of standard window ac unit
  4. Two adjustable strap buckle, keep the cover from falling
  5. Protect window ac unit keep from uv and rust
  6. Isolate cold air, rain, and snow, reduce heating costs,

Adjustable strap buckle

Keep the cover from falling.

420D Oxford cloth

Waterproof UV-resistance material.

Precision stitching

High-quality and durable.

Inner silver coating

Better waterproof and snow proof.

Multi-function

Isolate dust, sunlight, rain, and snow, washable and durable, protects your air conditioner

Homydom Window Air Conditioner Cover S 21" W x 16" D x 15" H

Based on 187 reviews Check latest price

Product description

Durable Window Air Conditioner Cover Light Duty, Large



Air conditioner covers can’t work miracles, but they can provide a layer of protection which prevents dirt and grime entering your unit. It can also prevent rust by lowering the level of moisture, as well as stop some of the freezing effects that can be caused in the winter months, damaging the coil of the air conditioner.

Stop cold air through air conditioners during cold months.Prolong A/C life.



Features:



-Cover all outside of the window A/C units, especially the bottom

-Reduce heating costs

-Prolong A/C life

-High quality lightweight material that are both water proof and winter weather-resistant

-Works with any brand name Window Mounted Air Conditioner

-Easy Assembly, Durable, and Convenient



Specifications:



- 21"width x 16"deep x 15"high

- Support A/C BTU ratings of:

12,000 - 15,000 BTU

  • 21"width x 16"deep x 15"high. Fits Most 3,000 - 7,000 BTU Window Air Conditioner Units
  • Stop cold air- drafts from entering your home, reduce the time you spend maintaining your unit and prolong it’s life by protecting it form the winter elements.
  • Easy to Install - Included 2 buckle straps to firmly install the cover and help protect the unit during windy conditions
  • Made of heavy-duty, waterproof 600D polyester, these AC covers are built to withstand snow and rain, helping prolong the lifespan of window units
  • Cover all the outside(bottom included) of window unit

User questions & answers

Question: My ac measures 23 5/8 wide and 17 7/8 high. Will this size fit
Answer: Yes, Homydom window ac cover can fit it, you can chose size L, it will a little bigger, but we package Included 2 buckle straps, you can adjustable it.
Question: Shouldn’t the cover include straps? the cover i received today did not have straps as advertised. i had to use duct tape to keep it attached. avoidz
Answer: This window air conditioner cover include straps, i think maybe the packer missed it, if you want straps, please contact with our store service, and then they will send you a new one.

Jeacent Window Air Conditioner Cover Small, Bottom Covered

Based on 1 reviews Check latest price

Product description

Jeacent Durable Window Air Conditioner Cover Light Duty, Small



Stop cold air from drafting through air conditioners during cold months.



Features:



-Cover all outside of the window A/C units, especially the bottom

-Reduce heating costs

-Blocks cold air drafts from entering your home



-Prolong A/C life

-High quality lightweight material that are both water proof and winter weather-resistant

-Works with any brand name Window Mounted Air Conditioner

-Easy Assembly, Durable, and Convenient





Specifications: 



- 21"width x 14"deep x 14"high

- Support A/C BTU ratings of:

3,000 - 7,000 BTU

  • Inside Dimensions - 21.5"width x 15"high x 16"deep. Fits Most 3,000 - 7,000 BTU Window Air Conditioner Units.
  • Stop cold air drafts from entering through units, cover all the outside(bottom included) of window unit
  • Reduce heating costs prolong A/C life during winter, eliminate the need to remove and reinstall A/C unit
  • Prevent dust, dirt from collecting in air conditioner. Prevent heat loss in winter, keep out insets & debris
  • Breezy Installation - secure with two sturdy adjustable straps. US Patent Pending. All Rights Reserved.

User questions & answers

Question: What is the warranty? Where do I find that info
Answer: You can return it within 30 days, and we have 2–year manufacturer warranty, which did not write on the description page
Question: I have a thru the wall ac unit and my dimensions are 27"w x 17"h x 9"d which one would work best for me and will the straps hold when i fold for depth
Answer: The size of 27.5"W x 19"H x 23"D will be more suitable, and you can secure with two sturdy adjustable buckle straps
Question: Will it still provide good coverage if I have to size up and I’m a few inches off
Answer: It depends on how you are off. Do you mean off in terms of being small or too large? In my case the cover was too deep (by a lot more than a few inches) , so I had to work it a bit in order to fold it inward while still maintaining its rectangular shape. The extra few minutes spent were well worth it. Also, the heavy duty strap can make up for some deformities. So in my case, even though I had to "customize it", it still performed very well in keeping out the cold air this past winter.
Question: does it come in any other color
Answer: does it come in white

Product features

Jeacent Durable Window AC Cover Heavy Duty

Jeacent window AC covers quickly slip over and secure to the back of AC unit, covering vents and access points between uses to stop drafts, conserve energy, and keep unit free of dust, debris during the off-season.

Protect AC Window Unit

Prevent the accumulation of rain and snow, prolong your A/C life

Adjustable Straps

Easy Assembly - secure with two sturdy adjustable straps, durable, and Convenient

UV - Stabilized Coating

UV - stabilized, works with any brand name Window Mounted Air Conditioner

Water - resistant

High quality lightweight material that are both water proof and winter weather-resistant

KylinLucky Window Air Conditioner Cover for Outside Units - Winter AC Unit Cover (17W x 12D x 13H inches)

Based on 955 reviews Check latest price

Product description

window ac cover air conditioner cover

  • Appropriate Dimensions - 17"width x 12"deep x 13"high. Fits Most 3,000 - 5,000 B
  • PREMIUM QUALITY - Made of heavy-duty, waterproof 420D polyester,prevent the accumulation of rain and snow, protecting your AC window unit from rust and corrosion.
  • PREVENTS DRAFTS - AC cover securely fits the back of window-mounted AC units, helping conserve energy in the winter months by blocking cold drafts from entering the home.
  • EASY ASSEMBLY - Secure with two sturdy adjustable straps, durable, and Convenient.
  • REPELS RAIN AND SNOW -This waterproof Window Unit Defender prevents the accumulation of rain and snow, protecting your AC window unit from rust and corrosion.

User questions & answers

Question: Have an 18,000 BYU in wall a/c 28x20x30 will this fit my unit
Answer: Yes no problem
Question: was this product made in china
Answer: yes
Question: This have a hole to drain the water outside
Answer: No
Question: if there are brackets holding up the bottom of the ac, can you use this cover
Answer: I have brackets under my unit that are not connected. I had to lift the bottom of my unit off the brackets to slide the cover over.

Kraftex Indoor Air Conditioner Cover (White) - Window Air Conditioner Cover for Inside Wall Unit with Double Insulation - Winter AC Cover – AC Covers for Inside Units (L 28in x H 20in x D 3.5in)

Based on 74 reviews Check latest price

Product description

Kraftex Indoor Air Conditioner Cover (White) - Window Air Conditioner Cover for Inside Wall Unit With Double Insulation - Winter AC Cover – AC Covers for Inside Units (L 28in x H 20in x D 3.5in)

  • PREMIUM QUALITY – Our AC Cover not only looks more presentable than other AC Covers on the market, but also offers thicker & more insulated materials too. Our double layered window AC insulation is long-lasting & will withstand any cold wind & drafts entering your home.
  • PROTECT YOUR AC – Measuring at L 28in x H 20in x D 3.5in, our air conditioner covers for window units prevent dirt, dust and debris from entering your AC. Save money and time with our reliable, durable window AC cover.
  • DOUBLE INSULATION – Our air conditioner sleeve comes in two parts to create the ultimate insulation for your inside AC. PLUS our wall air conditioner cover is machine washable.
  • EASY INSTALLATION – Simply slip the inner layer on the indoor air conditioner cover followed by the outer layer, using the velcro to attach them together. Pull the chords through the corner holes and you’re done.
  • HELPFUL TO HEALTH – Air conditioner covers keep your family safe from filthy, dirty air. We truly believe our ac window cover is the best in the marketplace and we stand by that. If our doesn’t blow you away, we’ll FULLY REFUND YOU. So, click "Add to Cart" now and buy with confidence.

BRIVIC Indoor Air Conditioner Cover AC Cover for Inside Window Unit 21 x15 x 3.5 inches(L x H x D),White

Based on 1 reviews Check latest price
  • Applicable Dimension:Inner size 21” x 15” x 3.5” (L x H x D), fitting most of 6000BTU to 8000BTU window air conditioners or indoor AC unit size of 19"-21"x 13"-15" x 3"(L x H x D)
  • Reduce heating costs:The indoor air conditioner cover with embedded cotton blocks warm air escaping and cold air getting through in AC.Prevent heat loss in the winter to reducing heating costs.
  • Innovative design: The inner lining near the air conditioner is made of water-resistant fabric.Block humid air entering to keep your equipment safe. And the hole in the bottom corner allows the cable to pass through.
  • Remain in place:Adjustable straps on both sides and elastic cords around allows you to achieve a snug fit.Provide customized fit.
  • Premium AC cover for inside:Combining convenience and practicality.No tools required. Simply slip the cover over your air conditioner.

User questions & answers

Question: My air conditioner is 26" x 18" x 4 1/2" which one will fit
Answer: Hi,the maximum size of the cover is 28x20x3.5.It may be a bit big for your air conditioner, but because the two sides of the cover are embedded with elastic cords, and the other two sides are equipped with adjustable shrink straps,so it should be able to fit well.
Question: My air conditioner is 25 3/4" x 16"; will this be too big
Answer: My AC measure 28" x 18" so yes it will work perfect.
Question: I have a through the wall ge unit. it measures 26" wide x 15" tall. what size should i get
Answer: Order the size that’s closest to your measurements, but larger if it’s not the exact size. I ordered one that’s a little larger, but it fits well due to the strings that attach to pull tighter.
Question: Will this adjust to a small unit 16 by 11 by
Answer: No, it does not adjust. Buy the right size. It runs small. If you get it a little larger you can duct tape it on.

Product features

Water-resistanrt lining

Prevents moisture from collecting on the unit keeping your equipment safe and ready for use as needed.

Fitted elastic holds cover in place

This Indoor Air Conditioner Cover has elastic all around the edges, allowing you to achieve a snug fit.

An extra drawstring

An extra drawstring is provided to help the the smaller models AC unit

Quilted outer shell

The window air conditioner cover is more effective and attractive than plain plastic covers because of the quilted outer shell.

Maintain a comfortable environment with this Indoor Air Conditioner Cover

AnyAir Window Air Conditioner Season Protection-Pack of 2 Foam Insulating Panels, Black

AnyAir

Based on 553 reviews Check latest price

Product description

Any Air air conditioner foam panels insulate or replace existing side panels. Panels fit most window units. Reduces noise and vibrations. Includes self adhesive channels for easy installation. Includes 2 panels per package. Use together with other ANYAIR weatherization products to make your home more comfortable and energy efficient all year long.

  • VERSATILE DESIGN - Insulates or replaces existing side panels. Easy and quick installation.
  • PROTECTION - All season protection against drafts, moisture, dust & insects.
  • UNIVERSAL - Fits most window air conditioner units. Customize to size by trimming with scissors.
  • 2 PACK - Includes 2 panels per package.

User questions & answers

Question: Does it come in white foam
Answer: why would you want to do that. That would cause the charging time be a lot longer to charge the fan. And the wear and tear on the charger inside the neck case would be over worked.
Question: Would this work with a fridgeair model fra123ct
Answer: I use tweezers to pull out whatever has collected on the blades😉
Question: What is the r-value for this insulation
Answer: they make several different models but my lights is inside behind the fan area i have one switch on top of the fan that turns the fan on the other side turns on the blue lights.
Question: Is each panel 9"×18"? Also how thick is it
Answer: It comes with a roughly 1ft usb charging cable. It doesn't come with a car charger.

Product features

2 Pack
Weatherize Your Home

Insulates or replaces existing side panels.

You Can Also Customize & Trim

Fits most window air conditioner units.

Forestchill Window Air Conditioner Side Insulated Foam Panel Kit, AC Units Insulation Panels Set 17 inch X 9 inch X 7/8 inch, Pack of 2

Based on 78 reviews Check latest price

Product description

Forestchill window air conditioner side insulating foam panel kit, pack of 2



Features:

Insulates the gap between air conditioner and window, keep cool air in during summer and keep hot air in during winter, energy saver

Durable foam helps to reduce noise and vibration, with high adhesive strength channels

17 in X 9 in X 7/8 in, fits most window air conditioner of 5000-22000 BTU

It can be a cover to the original side panel, or replaces existing side panels, can be cut freely



Easy to install:

Step 1, Please kindly measure the distance between your A/C and window

Step 2, Cut foam panels to size and make them 1/2 in lager in height and width, it will be slightly squished and better held

Step 3, Peel off the backing of plastic channel and insert the foam panel into the side of A/C, press it firmly and done



Package includes:

2 PCS foam panel with self-adhesive channel

  • Energy Saver: The foam panel is for insulates the gap between air conditioner and window, keep cool air in during summer and keep hot air in during winter, improve comfort and energy efficiency
  • Superior Material: Made of durable foam, helps to reduce noise and vibration. Self-adhesive hard plastic channels with high adhesive strength but remove without residue
  • Adjustable Size: 17'' Height X 9'' Width X 7/8'' Thickness, fits most window air conditioner of 5000-22000 BTU
  • Easy for installation: The foam panel can be a cover to the original side panel, or replaces existing side panels. Besides, it can be cut freely to meet your size requirement, easy for installation
  • Package Includes: Pack of 2 foam panels with self-adhesive channel. For any question, please feel free to contact us

User questions & answers

Question: How to install this product
Answer: Thanks for your inquiry. Following are the details about how to install side foam panel, it is easy to install without any tool. Step 1, Please kindly measure the distance between your A/C and window. Step 2, Cut foam panels to size and make them 1/2 in lager in height and width, it will be slightly squished and better held. Step 3, Peel off the backing of the plastic channel and insert the foam panel into the side of A/C, press it firmly and done. Besides, the installation instruction sheet is in the package. Thanks for your support.
Question: What the next size in with
Answer: Sorry, we are not sure what you mean. About the size, we have two sizes available now. 17'' Height X 9'' Width X 7/8'' Thickness & 18'' Height X 9'' Width X 7/8'' Thickness, and the height of the self adhesive channel is 15.74 inch. Thanks for your support and understanding.

Product features

SPECIFICATIONS

-Height: 17 inches

-Width: 9 inches

-Thickness: 7/8 inches

-Colour: Black

-Fits most window air conditioner of 5000-22000 BTU

-Please comfirm the size before purchasing

Measures

Please kindly measure the distance between your air conditioning and window

Cutting

Cut foam panels to size and make them 1/2 in lager in height and width, it will be slightly squished and better held

Installation

Peel off the backing of plastic channel and insert the foam panel into the side of A/C, press it firmly and done

Foozet Indoor Air Conditioner Cover Double Insulation, Medium Beige

Foozet

Based on 1 reviews Check latest price

Product description



Foozet Durable Indoor Window Air Conditioner Cover



Eliminates cold drafts. Prolong A/C life.





Features:



· Cover the inside of the window A/C units

· Prevent heat loss in winter

· Stop cold air drafts from entering your home

· Prevent dust, dirt from collecting in air conditioner

· Prolonging the life of your air conditioner when not in use

· Works with any brand name Window Mounted Air Conditioner

· Breezy Installation with elastic straps. No need vinyl tape.





Specifications: 



· 25"long x 18"high x 3.5"deep.

· Double insulation

· Machine washable

· Poly/Cotton cover

  • Inside Dimensions - 23-25"long x 14-18"high x 3.5"deep. Fits Most 7,000 - 12,000 BTU Window Air Conditioner Units
  • Prevent wind and cold air drafts from entering through air conditioners while keeping your home free from dirt, soot.
  • Double Insulation: The windblock poly inner lining and the outside cover are stitched together for easy installastion
  • Lowers heating costs- eliminate the need to remove and reinstall A/C unit and reduce energy cost
  • Easy installation, Minimum Assembly, Durable, and Convenient. US Patent Pending. All Rights Reserved.

User questions & answers

Question: Do you find it really keeps the cold and wind out? any suggestions on what to do to with the flimsy side panels to keep the cold out
Answer: We also had a plastic cover on the outside (a different brand). Along with the outside cover, it kept the cold out. I’m not sure if will without an outside cover. It’s not an insulated cover. It’s similar to a thicker table cloth.
Question: My ac is 18x12. I don’t want the cover to be loose. Will the 17x12 stretch over
Answer: My FooZet cover arrived with an under cover that fits tightly and a looser over cover. Use both, since they function to keep all unwanted air out of the room. Don’t go with the smaller cover, as only the outer cover will fit.
Question: my unit is 24x18x3" will the 25x16 stretch enough to cover it
Answer: my unit is 26x15 and it fits good. I have a wall unit. I'm not sure if you are going to be able to stretch it 2in. Good Luck!
Question: Will air still work with it on
Answer: The purpose of this cover is to keep out the cool air coming through the vents when not in use. I don't know why one would want run the air with a cover on it.

Product features

Are you looking for an air conditioner cover that is perfect for your window ac unit?

Foozet Durable Indoor Window Air Conditioner Cover

  1. Insulated ac covers for inside from Foozet are available in 4 sizes to accommodate most standard-sized AC window units.
  2. Constructed from high quality Poly/cotton which can prevents dust, dirt, and other small debris from clogging up your A/C unit when it's not in use.
  3. Complete in one step. Take out the poly/cotton cover, cover it on your A/C Unit without any trouble.
  4. Fitted elastic band helps keep the cover on tight, protect your A/C cover when it's not in use.
  5. This indoor cover allows you to leave your AC unit in the window all year long.

  • Cover the inside of the window A/C units.
  • Prevent heat loss in winter, keep out insets & debris.
  • Stop cold air drafts from entering your home.
  • Prevent dust & dirt from collecting in air conditioner.
  • Breezy Installation with elastic straps. No need vinyl tape.
  • Eliminates cold drafts. Prolong A/C life.

Maintain a comfortable environment with this Indoor Air Conditioner Cover.

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