Best Window Gaskets of 2025

Brian Howie Avatar
Brian Howie
Last Updated: Jan 2, 2025

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Window gaskets are essential components that play a crucial role in ensuring the proper sealing and insulation of windows. These flexible seals are typically made from durable materials like rubber or silicone and are designed to fit snugly between the window frame and the glass. By forming a tight seal, window gaskets effectively prevent air and water leakage, reducing energy loss and enhancing the overall energy efficiency of a building. Additionally, they also help to minimize noise infiltration, providing a quieter and more comfortable living or working environment.

At a Glance: Our Top Picks

Delfield 1702623 Gasket Cover #TOP 1
Delfield 1702623 Gasket
ftb score rating icon 9.8
Seal Rubber Window Seal (13 Feet) Cover #TOP 2
Seal Rubber Window Seal (13 Feet)
ftb score rating icon 9.7
Rational Gasket 87.01.545S Cover #TOP 3
Rational Gasket 87.01.545S
ftb score rating icon 9.5

Top 10 Window Gaskets

#TOP 1

Delfield 1702623 Gasket

DELFIELD
1702623
Blue
24.75 x 27.50
Delfield 1702623 Gasket Cover
Delfield 1702623 Gasket, 24 3/4 in. x 27 1/2 in. Blue

The Delfield Replacement Gasket features outside dimensions of 24 3/4 inches by 27 1/2 inches, making it a perfect fit for your needs. Its complete molded frame ensures durability and a secure fit, so you can trust it to perform well over time. The heat-welded corners with magnets provide added strength and stability, keeping the gasket in place while preventing leaks. Made in the USA, this gasket not only supports local manufacturing but also guarantees high-quality craftsmanship that you can rely on for your window sealing needs.

What We Like
Durable molded frame
Heat-welded corners
Magnetic stability
Made in the USA
#TOP 2

Seal Rubber Window Seal (13 Feet)

E003-13F
Black
13 Feet
Seal Rubber Window Seal (13 Feet) Cover
Window Rubber Seal for Windows, Windshield and Fixed Glass (13 Feet)

The Seal Rubber Window Gasket is designed with a panel thickness of 3/32 inches, making it sturdy yet flexible for easy installation. Its 13/64 inch glass thickness ensures a snug fit, providing a reliable seal that helps keep out drafts and moisture. Made from high-quality materials, this gasket offers durability and longevity, giving you peace of mind for your window needs. Its flexibility allows you to adapt it to various window shapes and sizes, ensuring a perfect seal every time, enhancing your comfort in your home.

What We Like
Durable construction
Easy installation
Flexible design
Effective moisture barrier
#TOP 3

Rational Gasket 87.01.545S

RATIONAL
87.01.545S
Rational Gasket 87.01.545S Cover
Rational 87.01.545S Gasket for Window and Trolley

The Rational Gasket is a genuine OEM part designed specifically for your food steaming equipment. By using this authentic component, you ensure safety, reliability, and optimal performance in your kitchen. Rational is a reputable brand known for its durable products, which means you can trust this gasket to last. Manufactured in Germany, it meets high-quality standards, making it a smart choice for anyone in the commercial food industry. Choosing genuine parts like this gasket can help prevent costly repairs and downtime, allowing you to serve your customers efficiently.

What We Like
Durable OEM part
Ensures safety and reliability
Trusted brand reputation
High-quality German manufacturing
#TOP 4

Atosa Door Gasket 28-1/8 x 26-7/8

Atosa
W0404564
Atosa Door Gasket 28-1/8 x 26-7/8 Cover
Atosa Gasket, Door 28-1/8 X 26-7/8

The Atosa Door Gasket is a high-quality, genuine OEM part designed for optimal safety and performance. Being an original equipment manufacturer product, you can trust that it meets the necessary standards for reliability. Manufactured in China, this gasket ensures a perfect fit for your door, enhancing its functionality. By using the Atosa Door Gasket, you can maintain the integrity of your door system, preventing leaks and improving energy efficiency. Choosing genuine OEM parts like this one helps you avoid potential issues down the road, giving you peace of mind.

What We Like
Genuine OEM quality
Reliable performance
Perfect fit
Improves energy efficiency
#TOP 5

Alto-Shaam GS-2721 Window Gasket

Alto-Shaam
ALTGS-2721
Alto-Shaam GS-2721 Window Gasket Cover
Alto Shaam WINDOW GASKET BY FOOT GS-2721

The Alto-Shaam Window Gasket is a genuine OEM replacement part designed for various Alto-Shaam equipment. This ensures that you maintain the highest standards of safety and reliability in your kitchen. By using this authentic component, you can enhance the performance of your cook and hold ovens, fryers, and other appliances. Investing in quality parts like this gasket helps prevent leaks and improves energy efficiency, providing you with peace of mind as you operate your equipment. With this reliable gasket, you can ensure optimal functioning of your kitchen tools.

What We Like
Genuine OEM quality
Enhances equipment safety
Improves energy efficiency
Reliable performance
#TOP 6

Cambro 12102 1-Gasket

12102
Multicolor
Cambro 12102 1-Gasket Cover
Cambro 12102 Gasket for End Loader

The Cambro 12102 1-Gasket is a versatile window gasket that offers convenience and practicality. With its compact size and lightweight design, it is easy to handle and install. The package dimensions of 7 L x 9 H x 9 W (inches) make it suitable for various window sizes. Weighing only 0.4 pounds, it is lightweight and easy to transport. Made in the United States, it guarantees quality and durability. The Cambro 12102 1-Gasket, part number 12102, is a reliable choice for window gaskets that will enhance the functionality and efficiency of your windows.

What We Like
Compact and lightweight
Versatile and easy to handle
Durable and high-quality
#TOP 7

Nemco 1/4 Red Cleaning Gasket

56275-1
1/4"
Nemco 1/4 Red Cleaning Gasket Cover
Cleaning Gasket 1/4 Red 3-Pk

The Nemco Cleaning Gasket 3-Pk is a genuine OEM part designed for optimal safety, reliability, and performance. By choosing this product, you ensure that your equipment operates at its best, preventing potential issues that could arise from using non-genuine parts. These gaskets are specifically crafted for window applications, ensuring a perfect fit and effective sealing. When you use genuine OEM parts like this, you can have peace of mind knowing that you are maintaining your equipment’s integrity and extending its lifespan. This product is a smart choice for anyone looking to enhance the functionality of their appliances.

What We Like
Genuine OEM quality
Improved safety and reliability
Perfect fit for windows
Enhances equipment lifespan
#TOP 8

Cambro 12111 Gasket

12111

The Cambro Gasket is a genuine OEM replacement part designed to support foodservice operators worldwide. With a focus on safety, reliability, and performance, this gasket is an essential component for efficient and profitable operations. Made in the United States, it ensures the highest quality and durability. By using genuine OEM parts, you can trust in the safety and reliability they provide. The Cambro Gasket is specifically designed for window applications, making it an ideal choice for foodservice establishments. Its high-quality construction ensures a tight seal, preventing leaks and maintaining the temperature of the food. With the Cambro Gasket, you can enhance the efficiency of your operations and deliver the best food quality to your customers.

What We Like
Genuine OEM replacement
Safety and reliability
Efficient operations
#TOP 9

Alto-Shaam GS-23380 Bulk Window Gasket

Alto-Shaam
GS-23380
Alto-Shaam GS-23380 Bulk Window Gasket Cover
Alto Shaam GS-23380 Model TH/III VC-4010L Bulk Window Door Gasket

The Alto-Shaam Window Gasket is designed to enhance the functionality of your windows. With a height of 9.0 inches, it ensures a snug fit, effectively sealing gaps to prevent drafts. Its compact dimensions of 5.0 inches in length and 6.0 inches in width make it easy to handle and install. This gasket is categorized under window gaskets, providing you with the assurance of quality and durability. By using this product, you can maintain a comfortable indoor environment and reduce energy costs, making it a smart choice for your home.

What We Like
Easy installation
Effective sealing
Energy efficiency
Durable design
#TOP 10

Lockwood 12 Feet Door Gasket

Lockwood
DOOR GASKET-CA57
Lockwood 12 Feet Door Gasket Cover
Lockwood DOORGASKET-CA57 12 Feet Door Gasket

The Lockwood Door Gasket is designed to enhance your food service operations. With dimensions of 6.0" x 11.0" x 13.0", this gasket offers a compact solution for sealing doors effectively. Being a food service supply, it ensures that your environment maintains proper hygiene and temperature control, which is crucial in food handling. Made in the United States, you can trust its quality and reliability. Whether you're in a restaurant or a commercial kitchen, this gasket helps reduce energy costs by preventing air leaks, keeping your space efficient and comfortable.

What We Like
Effective sealing for doors
Maintains hygiene and temperature
Compact and space-saving design
Quality construction from the USA
Buying Guide Image

Frequently Asked Questions (FAQs)

1. Can you replace window gaskets?

Unfortunately, window gaskets cannot be repaired. Once they have lost their shape or become brittle, the only option is to replace them with new ones.

2. What is the lifespan of a window gasket?

Window gaskets typically have a lifespan of 10-20 years. However, once a window seal is broken, the effectiveness of double glazing can be compromised. Window seals can fail due to various reasons, including shrinkage from cold weather or improper installation.

3. Are metal gaskets better than rubber?

Metal gaskets are often used in high-pressure and high-temperature applications, while rubber gaskets are more cost-effective and suitable for moderate pressure and temperature applications.

4. Why do window gaskets fail?

Window gaskets can fail due to various reasons, such as tainted sealant material, insufficient curing time for the sealant, or accidental punctures during installation or shipping.

5. How much does a window gasket cost?

The cost of replacing a window gasket can range from $40 to $120 per window. However, if the damage is significant, it may be more cost-effective to replace the entire window.

6. Can you replace window seals without replacing windows?

Yes, it is possible to repair a window seal without replacing the entire window. Options include replacing the insulating glass unit or using defogging services for a temporary fix. However, if the windows are in poor condition or outdated, full window replacement is recommended.

7. Can old windows be resealed?

While it is generally recommended to replace old windows, you can seal them using simple and inexpensive techniques to limit energy loss. However, for improved energy efficiency, it is best to install new windows.

8. How do you seal the gap between windows and frame?

To seal the gap between windows and the frame, you can follow these steps: 1. Clean the area thoroughly. 2. Insert backing rod. 3. Apply masking tape. 4. Prepare caulk and place the cartridge. 5. Apply the sealant. 6. Keep the area clean. 7. Paint the frame for a finished look.

9. How do you seal a gap between glass and frame?

For large gaps between glass and the frame, expanding foam can be used. Expanding foam is ideal for filling large gaps as it allows for movement without cracking or breaking. It also provides a moisture barrier between the brickwork and the window frame.

Editor's Notes

During our window gasket research, we found 24 window gasket products and shortlisted 10 quality products. We collected and analyzed 3,631 customer reviews through our big data system to write the window gaskets list. We found that most customers choose window gaskets with an average price of $29.92.

The window gaskets are available for purchase. We have researched hundreds of brands and picked the top brands of window gaskets, including DELFIELD, Seal Rubber, RATIONAL, Atosa, Alto-Shaam. The seller of top 1 product has received honest feedback from 68 consumers with an average rating of 4.8.

Written by
Brian Howie Avatar

Brian Howie is a content writer and senior industrial designer. After graduation from Westminster College, he has been engaged in product design and manufacturing for 18 years. Brian Howie has always found great pleasure in designing industrial products and sharing his ideas and experience online.