How to Make an Invisible Drywall Patch
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We’ve had our share of drywall patches through our home ownership journey. We just went over bee removal services, rerouting plumbing to bypass under slab supply plumbing leaks, leaky roofs, a kitchen remodel–all of which involved patching holes in drywall. The real test of a flawless putback is the next person walking in, never suspecting a drywall patch because it is invisible!
There are two methods when it comes to a drywall patch.
Method #1. The quick drywall patch.
You have a hole in the drywall. Cut a drywall patch the size of the hole. Use some sort of blocking to attach it in place. Tape over all the outside edges with paper tape. Next, float out the joint compound in an attempt to hide the paper tape bumps.
The problem with this method is you can’t fight the laws of physics. Mass is there and stays unless some act of God or human changes it. There is a bump and unless you float out the entire wall…there is a bump!
Method #2. The invisible drywall patch.
You have a hole in the drywall. In this invisible method most of the work is spent digging out the two inches of paint, texture, drywall facing and a little of the drywall itself.
Cut a drywall patch two inches longer on every side of the hole. Next, take off the extra two inches on each side, leaving the paper facing.
This extra paper facing is your new paper tape–already embedded and perfectly matched to the hole!
Once you have completed your excavation, set up some sort of blocking to attach the patch to the wall (if you were not able to hit ceiling joists or wall studs as we were above).
Apply joint compound over all the areas you just dug out.
The inside pieces of drywall facing should also get dampened with water so both sides attach 100%, eliminating any bubbles.
Don’t forget new paper tape along corner edges.
You’ll still have a couple layers of mud left to fully float the patch where it is smooth and inconspicuous:
As you can see, you still float out the patch further each time just as you would with new drywall.
There will still be some irregularity–a level 5 finish might not be the way to go. However, you aren’t fighting an entire layer of paper tape on top of the already existing drywall.
Some of your success also depends on the texture of the existing drywall surface. For instance, it is much easier to blend orange peel than crows foot.
We use USG’s First Coat Primer before and after the texture is applied. Regular primer gets absorbed into the raw joint compound. With First Coat the primer and following color coats stay on the outside. If you do not use First Coat you run the risk of the patch and new texture looking different because it looks dull–not as shiny as the rest of the surrounding area.
At this point the rest of the ceiling was painted with color so the patch is seamless. Since the rest of the ceiling paint is older it is difficult to match perfectly. Even if you have the lid with the RGB values of the original color, the new paint may not match due to fading, cooking food in the kitchen, and other factors that change the original color.
Side note, when creating the hole you want to patch there are a couple lines of thinking:
#1. You could square it up. Squaring a patch between two studs or ceiling joists makes it easy to attach the drywall without additional blocking.
#2. Make it an odd size. Attaching an odd size patch could be a bit tricky, but it is easier to blend and hide with drywall mud. Your eye won’t catch an odd shape as easily as it can straight lines.