Do Door Draft Blockers Really Work?

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deeToolMan draft excluder 36" One sided door insulator compatible


As the winter season approaches, many homeowners start looking for ways to keep their homes warm and cozy. One common problem faced by homeowners is drafty doors, which can lead to increased energy bills and discomfort. Door draft blockers have gained popularity as a solution to this problem, but do they really work? In this article, we will explore the effectiveness of door draft blockers and answer some frequently asked questions about them.

What Are Door Draft Blockers?

Door draft blockers, also known as draft stoppers or door snakes, are long fabric tubes filled with insulating materials such as foam or polyester fiberfill. They are designed to be placed at the bottom of doors to prevent cold drafts from entering the room and warm air from escaping.

How Do They Work?

When placed at the bottom of a door, door draft blockers create a seal that prevents air from passing through. The insulating materials inside the draft blocker help to trap the cold air and prevent it from entering the room. This creates a barrier that keeps the warm air inside and the cold air outside, thus reducing drafts and improving energy efficiency.

Benefits of Using Door Draft Blockers

Using door draft blockers can provide several benefits:

  1. Energy Savings: By preventing drafts, door draft blockers can help reduce the amount of energy needed to heat your home, leading to lower energy bills.
  2. Increased Comfort: Drafty doors can create chilly spots near the entrance, making the room less comfortable. Door draft blockers can help eliminate these cold spots and create a more comfortable living environment.
  3. Noise Reduction: In addition to preventing drafts, door draft blockers can also help reduce noise from outside, creating a quieter indoor space.
  4. Easy to Install: Door draft blockers are simple to install and can be easily removed when not needed.

Factors Affecting the Effectiveness of Door Draft Blockers

While door draft blockers can be effective in reducing drafts, their effectiveness can be influenced by several factors:

  1. Door Condition: The condition of the door and its bottom surface can affect how well a draft blocker seals the gap. Uneven or damaged surfaces may hinder the effectiveness of the draft blocker.
  2. Size and Fit: It is important to choose a door draft blocker that is the right size and fit for your door. A draft blocker that is too small or too big may not seal the gap properly.
  3. Quality of Materials: The quality of the insulating materials used in the draft blocker can also impact its effectiveness. High-quality materials will provide better insulation and durability.

Frequently Asked Questions

Q: Can door draft blockers be used on all types of doors?

A: Yes, door draft blockers can be used on most types of doors, including wooden, metal, and glass doors. However, it is important to ensure that the draft blocker is compatible with the specific type of door.

Q: Can door draft blockers be used on sliding doors?

A: Yes, door draft blockers can be used on sliding doors as well. There are specially designed draft blockers available for sliding doors that can be easily attached to the bottom track.

Q: How long do door draft blockers last?

A: The lifespan of a door draft blocker depends on the quality of materials used and the amount of wear and tear it experiences. On average, a well-maintained door draft blocker can last for several years.

Q: Can door draft blockers be used in the summer?

A: While door draft blockers are primarily used to keep cold drafts out in the winter, they can also be used in the summer to keep cool air inside. Simply remove the draft blocker when it is not needed.


Door draft blockers can be an effective solution for reducing drafts and improving energy efficiency in your home. By creating a seal at the bottom of doors, they prevent cold air from entering and warm air from escaping. However, the effectiveness of door draft blockers can be influenced by factors such as door condition, size and fit, and the quality of materials used. When choosing a door draft blocker, make sure to consider these factors to ensure maximum effectiveness. Stay warm and cozy this winter with the help of a door draft blocker!

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