Drywall Joints Showing Through Paint – 6 Killer Ways to Cover It

One of the most common issues homeowners face when painting their walls is the visibility of drywall joints through the paint. This problem can detract from the overall aesthetic of your home and can be a source of frustration. However, with the right knowledge and techniques, this issue can be effectively addressed. This article will guide you through the six killer ways to cover drywall joints showing through the paint.

Drywall Joints Showing Through Paint
Drywall Joints Showing Through Paint

Understanding the Problem

Before we delve into the solutions, it’s important to understand why drywall joints might show through paint. This issue often arises due to environmental factors, such as temperature and humidity changes, or installation errors, such as improper taping or mudding. By understanding the root cause of the problem, we can better address it and prevent it from recurring.

Common Reasons for Drywall Joints Showing Through Paint

There are several reasons why drywall joints might show through paint. Here are the most common ones:

  1. Incorrect or insufficient application of joint compound: If the joint compound, also known as mud, is not applied correctly or is too thin, it can lead to visible joints.
  2. Poor quality of drywall tape or incorrect tape used: Using low-quality drywall tape or the wrong type of tape can result in joints that show through the paint.
  3. Inadequate sanding of the drywall joints: If the joints are not sanded smooth, they can become visible under the paint.
  4. Absence of a primer before painting: Primer helps to seal the drywall and create a smooth surface for the paint. Without it, the joints can show through.
  5. Use of low-quality paint: Low-quality paint may not cover the joints effectively, leading to visible joints.

Detailed Guide to Covering Drywall Joints

Now that we understand the common reasons for drywall joints showing through paint, let’s look at how to address each one:

  1. Proper Application of Joint Compound: Apply the joint compound in thin, even layers. Allow each layer to dry completely before applying the next. This process might take time, but it’s crucial for a smooth finish.
  2. Choosing the Right Drywall Tape: Use high-quality drywall tape for the best results. Paper tape is generally recommended for its superior adhesion.
  3. Sanding Drywall Joints: Sand the joints smooth after the joint compound has dried. Use a fine-grit sandpaper and sand in a circular motion for the best results.
  4. Importance of Priming: Always apply a primer before painting. This seals the drywall and provides a smooth surface for the paint, preventing the joints from showing through.
  5. Selecting Quality Paint: Choose high-quality paint for your walls. While it might be more expensive, it provides better coverage and can prevent drywall joints from showing through.

Case Studies

To illustrate these points, let’s look at a few real-life examples. In one case, a homeowner was frustrated with visible drywall joints in their living room. After applying these techniques, especially focusing on proper application of joint compound and priming before painting, they were able to achieve a smooth, joint-free finish.

In another case, a professional painter was called in to fix a poorly done paint job where the drywall joints were showing through. By choosing the right drywall tape and using high-quality paint, they were able to cover the joints effectively.

Common Mistakes to Avoid

When trying to cover drywall joints, there are a few common mistakes to avoid:

  • Rushing the process: Each step, from applying the joint compound to sanding, takes time. Rushing can result in a less-than-perfect finish.
  • Skimping on materials: Using low-quality tape, mud, or paint can lead to visible joints. Always choose high-quality materials for the best results.
  • Not priming before painting: Primer is crucial for a smooth, joint-free finish. Never skip this step.

Best Practices to Follow

For the best results when covering drywall joints, follow these tips:

  • Be patient and take your time with each step.
  • Choose high-quality materials.
  • Always prime before painting.
  • Consider hiring a professional if you’re unsure about doing it yourself.


While drywall joints showing through paint can be a frustrating issue, it’s one that can be effectively addressed with the right knowledge and techniques. By understanding the common causes and following the steps outlined in this guide, you can achieve a smooth, joint-free finish on your walls.

Leave a comment