How to seal garage door?

How to seal garage door?


Sealing your garage door is an essential step in maintaining the temperature and energy efficiency of your home, as well as keeping out pests and preventing water damage. In this article, we will explore the different methods and materials used to seal a garage door effectively.


Materials used: Weatherstripping tape, rubber or vinyl seal

Weatherstripping is a popular and effective method for sealing garage doors. It involves applying a strip of rubber or vinyl seal along the bottom edge of the door and the sides. This creates a barrier that prevents drafts, dust, and pests from entering the garage.

To install weatherstripping, start by cleaning the surface where the strip will be applied. Measure the length needed and cut the weatherstripping tape accordingly. Peel off the adhesive backing and press the strip firmly against the door. Repeat the process for the sides of the door.

Threshold Seal

Materials used: Threshold seal kit, adhesive

A threshold seal is installed on the garage floor, creating a barrier against water, leaves, and pests. It is especially useful if your garage has a sloping driveway that allows water to flow inside.

To install a threshold seal, clean the garage floor and ensure it is dry. Measure the width of the garage door and cut the threshold seal accordingly. Apply a generous amount of adhesive to the backside of the seal and press it firmly onto the garage floor, aligning it with the bottom edge of the door. Allow the adhesive to dry completely before using the door.

Insulating Panels

Materials used: Insulating panels, adhesive

Insulating panels not only help seal the garage door but also provide thermal insulation, keeping the garage cooler in summer and warmer in winter. These panels are made of materials such as polystyrene or polyurethane and can be installed on the inside of the garage door.

To install insulating panels, measure the dimensions of each section of the garage door and cut the panels accordingly. Apply adhesive to the backside of each panel and press them firmly onto the door. Make sure to cover the entire surface of the door for maximum insulation.

Garage Door Bottom Seal

Materials used: Garage door bottom seal, track

The bottom seal of the garage door is crucial for preventing drafts, debris, and pests from entering. It is usually made of rubber or vinyl and is attached to a track at the bottom of the door.

To replace a garage door bottom seal, start by opening the door completely. Remove the old seal by pulling it out of the track. Clean the track thoroughly to remove any dirt or debris. Measure the length needed for the new seal and cut it accordingly. Insert the seal into the track, making sure it is snug and secure.


Sealing your garage door is a simple yet effective way to improve energy efficiency, keep out pests, and protect your garage from water damage. By using weatherstripping, threshold seals, insulating panels, and garage door bottom seals, you can ensure that your garage is well-sealed and insulated.

Remember to regularly inspect and maintain the seals to ensure they remain in good condition. With proper sealing, you can enjoy a more comfortable and functional garage space.


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