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How to Fix a Bad Drywall Job

If you find that the drywall job in your home is not up to par, there are steps you can take to fix it.

Drywall is a common material used for walls and ceilings. It’s made of gypsum plaster sandwiched between two sheets of special paper.

Drywall is easy to work with but can be tricky to install. If you’re having trouble with your drywall installation, don’t despair. You can fix it. Before you start, though, assess the situation. Is it just a small repair, or do you have a big problem?

How Bad is It?

Before attempting any repair or replacement, it’s important to assess how bad the problem is, so you know how much time and money it will take to fix it. A minor repair may be as simple as sanding down and repainting an area with no cracks or holes. However, if there are gaping holes in the wall, you’ll need more than just sanding and painting — you’ll probably need new drywall installed.

It’s not always necessary to hire a professional for repair jobs like this — especially if all that needs to be done is repairing holes and cracks. There are several simple methods you can use at home to fix these common problems.

To fix a bad drywall job, you’ll need:

  •       Drywall mud (also called joint compound)
  •       Sandpaper
  •       Drywall tape and corner bead (if necessary)
  •       Putty knife
  •       Roller
  •       A utility knife
  •       Paint primer and paint (if needed)

How to Fix a Bad Drywall Job

Prep The Room

You need to prep the room so that you can get started with your drywall repair project. You will need to remove any furniture or other items from the wall in question. You will also need to cover up any electrical outlets, switches, and lights that are located on the wall.

Repairing Holes in Drywall

Holes in drywall happen because of many different reasons. Some people use hammers or screwdrivers without taking precautions against damaging their walls, while others may accidentally knock holes in their walls during remodeling projects.

For minor repairs, such as cracks or holes, use some spackle or latex caulking to fill it in until it’s flush with the surrounding wall surface. Apply the compound with either a putty knife or a taping knife, and then smooth out the surface with your finger or a rag.

For larger holes or gaps, start by applying another coat of mud over the first layer to fill in any open spaces or deep holes. Once that’s done, use your finger or a knife to smooth out any rough edges, so they’re flush with the wall surface as best as possible.

If you don’t want cracks around the hole’s edges, simply let it dry completely before sanding off any excess spackle and painting over it with primer and paint.

How to Fix Drywall Corners

Drywall corners are usually created using a corner bead, which is a metal or plastic strip that runs along the outside edge of the wall. The corner bead protects the wall from getting damaged during installation or while painting.

You can repair a drywall corner by applying another coat of mud, thinning it, so it covers the joint and makes it disappear.

You can also install a corner guard over the damaged spot.

Fixing Uneven Drywall

If there are sections of drywall that are higher than others, you can use a utility knife to cut away any excess material from around the area. Then use a putty knife to fill in the gap with joint compound (the stuff you used for patching). After it dries, sand it smooth with fine sandpaper until it’s flush with the wall.

Sand Away the Problem Areas

Once all the holes and gaps are filled, sand the entire area lightly to make sure the compound leaves behind no rough spots. You can get away with not sanding as much if you’re only working with a few small areas that need fixing; however, if there are larger areas that need work done, it’s best to sand everything down completely before moving forward.

Check For Gaps Between Joints

These can be hard to see, but if you look closely, you can usually tell if there are any small holes or depressions in the joint compound (the material used to fill in cracks). If there are, use a joint knife or a utility knife to scrape away the paper covering over the joints, then use a putty knife or other flat blade to fill in the gaps.

Check For Missing or Faded Tape Lines

The most common reason for this is that the painter didn’t use enough paint or primer before applying the tape. Make sure you’re using enough paint to cover all of your surface areas before applying tape — and make sure it’s dry before removing it!

Check for Mold

Mold can grow in wall cavities when moisture gets trapped behind drywall — especially if you live in an area with high humidity or frequent rainstorms. If you see signs of mold on your walls, contact a licensed contractor for advice on removing it safely before proceeding with repairs.


If you’re looking for a cost-effective way to improve your home, drywall is an excellent choice. Drywall is relatively easy to install, and the results are both quick and dramatic. It’s also extremely durable and long-lasting. But like most things in life, there is always a catch: drywall isn’t perfect. If you’re lucky enough to have a good drywall job, it can last for years without showing any signs of wear and tear. But if you’re unlucky enough to have a bad drywall job, you might have trouble sleeping at night knowing that every time someone walks into your home, they’re laughing at your expense.

The good news is that it’s not too difficult to fix bad drywall jobs if you know how to do it right. Try the tips and tricks in this article to help you repair those ugly patches in your home and restore its original beauty again!