Quck answer
Uneven drywall seams can be repaired by following these steps:
1. Identify the uneven areas by running your hand along the seams and marking them.
2. Use a utility knife to cut along the marked areas, removing any loose or raised drywall.
3. Apply joint compound to the cut seams using a putty knife, ensuring the compound fills the gaps evenly.
4. Smooth out the compound with a drywall knife, feathering the edges to blend with the surrounding wall.
5. Allow the compound to dry completely, then sand it down until smooth.
6. Apply a second coat of joint compound if necessary, repeating the sanding process.
7. Finally, prime and paint the repaired area to match the rest of the wall.
Even a slight difference in height between adjacent sheets of drywall is easily noticeable and can be seen as a mistake. Luckily, repairing uneven drywall seams is a quick process that only requires basic drywall hand tools. By being careful and paying attention to detail, you can hide an uneven drywall seam and make it blend with the rest of the wall.
Step 1
Take a drywall pan and fill it with drywall compound, which is commonly referred to as “mud” by professionals due to its consistency. Use a taping knife to scoop a mound of compound from the pan, keeping it near the center and edge of the knife’s blade. Fill the largest part of the gap in the seam with the drywall compound. Press the knife and the mound of compound onto the seam, then draw the knife across the length of the seam. Apply the first coat of compound to fill the deepest part of the gap, without trying to create a thick layer. Allow the first coat to dry.
Step 2
Place a straightedge over the uneven drywall seam to determine where the seam is lower. Use the straightedge to measure the unevenness of the seam at several points along the wall. Fill the pan with fresh compound and scoop some onto the edge of the knife. For the second coat, position the mound of compound across the entire edge of the knife.
Step 3
Press the knife against the wall and spread a thick layer of compound across the length of the seam, focusing on the side that is lower. Remove any excess compound from the wall and put it back into the pan. Scrape the knife’s blade on the side of the pan to remove compound from the edge of the knife. Run the knife along the seam to spread and smooth the wet compound. Make sure to smooth both sides of the fresh layer and taper the edges to create a seamless transition between the new compound and the existing wall. Allow the second coat to dry.
Step 4
Dampen a drywall sanding sponge. Gently press the sanding sponge along the edge of the repaired area, rotating it in a circular motion. Use the sponge to smooth out the edges of the repair area and blend it with the rest of the wall. If the new compound forms a raised area over the seam, use the sanding sponge to flatten it and blend it with the surrounding compound.
