How to Fix Bubbles in Drywall Tap

How to Fix Bubbles in Drywall Tape

Drywall tape is an essential component of any drywall installation. It helps to create a smooth and seamless finish, hiding the joints between drywall panels. However, one common issue that can arise during the installation process is the formation of bubbles in the drywall tape. These bubbles can be unsightly and can compromise the integrity of the finished wall. In this article, we will explore the causes of bubbles in drywall tape and provide step-by-step instructions on how to fix them.

Causes of Bubbles in Drywall Tape

Before we delve into the solutions, it is important to understand the underlying causes of bubbles in drywall tape. By addressing these causes, you can prevent future occurrences and ensure a successful drywall installation.

1. Insufficient Joint Compound

One of the most common causes of bubbles in drywall tape is the use of insufficient joint compound. Joint compound is used to adhere the tape to the drywall and create a smooth surface. If there is not enough joint compound applied, the tape may not adhere properly, leading to the formation of bubbles.

2. Improper Application Technique

The technique used to apply the joint compound and drywall tape can also contribute to the formation of bubbles. If the joint compound is not spread evenly or if too much pressure is applied during the application process, bubbles may form.

3. Moisture or Humidity

Moisture or humidity can also cause bubbles in drywall tape. If the drywall or joint compound is not properly dried before the tape is applied, moisture can become trapped, leading to the formation of bubbles.

Step-by-Step Guide to Fixing Bubbles in Drywall Tape

Now that we understand the causes of bubbles in drywall tape, let’s explore the step-by-step process to fix them.

Step 1: Assess the Damage

Before you begin the repair process, it is important to assess the extent of the damage. Identify all areas where bubbles have formed and determine if any additional repairs are needed, such as reapplying joint compound or replacing damaged drywall.

Step 2: Prepare the Surface

Before you can fix the bubbles, you need to prepare the surface. Use a utility knife to carefully cut away any loose or damaged tape. Be sure to remove any excess joint compound as well.

Step 3: Apply Joint Compound

Once the surface is prepared, it’s time to apply a fresh layer of joint compound. Use a putty knife to spread a thin layer of joint compound over the area where the bubbles were located. Be sure to feather the edges to create a smooth transition between the repaired area and the surrounding wall.

Step 4: Reapply Drywall Tape

After applying the joint compound, it’s time to reapply the drywall tape. Cut a piece of tape slightly longer than the damaged area and press it firmly into the joint compound. Use a putty knife to smooth out any wrinkles or bubbles in the tape.

Step 5: Apply Additional Joint Compound

Once the tape is in place, apply another thin layer of joint compound over the top. Again, feather the edges to create a seamless transition. Be sure to remove any excess joint compound before it dries.

Step 6: Sand and Finish

After the joint compound has dried, use a sanding block or sandpaper to smooth out any rough edges or imperfections. Once the surface is smooth, you can apply paint or wallpaper to finish the repair.


Q1: Can I prevent bubbles in drywall tape?

A1: Yes, by using the proper amount of joint compound and applying it evenly, you can prevent bubbles from forming in the drywall tape.

Q2: How long does it take for the joint compound to dry?

A2: The drying time for joint compound can vary depending on factors such as temperature and humidity. In general, it takes about 24 hours for the joint compound to dry completely.

Q3: Can I use a hairdryer to speed up the drying process?

A3: It is not recommended to use a hairdryer or any other artificial heat source to speed up the drying process. This can cause the joint compound to dry unevenly and may result in cracking or other damage.

Q4: What if the bubbles reappear after I fix them?

A4: If the bubbles reappear after you have fixed them, it may be a sign of a more serious underlying issue, such as moisture or improper drywall installation. In this case, it is best to consult a professional for further assessment and repair.

Q5: Can I use a different type of tape to fix the bubbles?

A5: It is best to use the same type of drywall tape that was originally used. Different types of tape may have different adhesive properties and may not adhere properly to the joint compound.


Bubbles in drywall tape can be a frustrating issue, but with the right techniques and materials, they can be easily fixed. By addressing the underlying causes and following the step-by-step guide outlined in this article, you can achieve a smooth and seamless finish for your drywall installation. Remember to take your time, apply the joint compound evenly, and allow for proper drying to ensure a successful repair. With these tips in mind, you can confidently tackle any bubbles that may arise in your drywall tape.

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