How to Repair a Crack in Your Drywall

Having a crack in the wall of your home can be devastating, especially if you are planning on moving sometime in the future and you don’t want the value of your home to be diminished.


Repairing a large crack in drywall is a project that is easy to do yourself, and you will be surprised at how much better it will make the appearance of your walls. Follow these simple steps to repair a crack in your wall.

  1. The first step is to make sure that you have all of the necessary tools for the job, and these include: a six inch taping knife, a 12 inch taping knife, drywall tape, drywall compound, sandpaper, a sanding block and a one square piece of plywood or a plastic mud pan. Once you have all of these things you will be ready to begin.
  2. Next, take your taping knife and scratch off all the edges of the crack to smooth it out and remove any of the dust that comes with the process.
  3. Then take some of the compound and pour it into the mud pan or onto the piece of plywood so that you have easier access to it. It will make the job much less painful if you have these things ready to go, so you don’t need to make so many extra steps of pouring it out a little bit at a time.
  4. After that take the six-inch taping knife and use it to put on a light coat of the compounding material onto the crack. Make sure that it there is enough of it to be moist, but not an overwhelming overflow of it and that it’s not too thick either.
  5. Use the drywall tape to cover the compounding job that you have just done and use the knife to push it into the crack. If it is a very crooked line then you may need to do this part in sections, but overall you want to make sure that it does go inside the crack fully.
  6. Next you will want to use your biggest taping knife to scrape off all of the excess tape and compound away from the surface. The purpose of this is to make it a nice and smooth filling of the crack, and you will have to do this carefully without removing any of the compounds that you filled it up with.
  7. Then using your six-inch taping knife go over the compound and apply another thin coating. Be sure to feather the edges, as it will help you have a more completely job. You will want to allow this to dry completely which usually takes at least an overnight time period.
  8. The next day take your widest knife and go over the crack with another layer of the compound. The reason for using the big knife this time is so that you can blend the edges together without there being a totally defined outline. After this you will need to let it dry completely again.
  9. One the drywall is completely dry to touch, go ahead and add the final coat of the compound. Using the sandpaper or sand block, smooth out the whole area as much as you can until it feels slick.
  10. Using primer paint go over the crack you just repaired, and once that is dry you can paint over it with its original wall paint color. Most people have some extra paint of their wall’s colors, and in case that you don’t you will have to go to the hardware store and pick up some more.

Written by Mike Wolfe of Mike Wolfe Construction. Mike and his crew offer the best service for home improvement in Columbia, MO has to offer!


pinit fg en rect red 28 - How to Repair a Crack in Your Drywall