How to Replace Bathroom Walls

Replacing bathroom walls allows you make repairs. Once those walls are removed you can get to what is behind them, fix leaks, and kill mold. Mold can be toxic and can make your family sick. Once the walls are replaced, your bathroom will be healthier and will have walls ready to be finished and painted. Do this renovation yourself, or with a friend, for just the cost of the supplies.

Step 1

Remove the screws that hold the bathtub in place, using a cordless drill. Take the bathtub out of the room. Use a claw hammer to help break the seal between the tub and the wall if need be. Remove the screws that hold the vanity in place and remove it as well. Do this so that to will have access to the wall space behind them.

Step 2

Remove the screws that hold the current wallboard in place, using the cordless drill. If you cannot find them because they have been covered with mud, use the claw hammer to tear the wallboard out, working horizontally, stud to stud. Uncover ½ inch of stud by removing the wallboard with the claw hammer to make the screws visible, then remove them.

Step 3

Apply a paint-on mold killer to any moldy spots that have just been uncovered. Allow the mold killer to dry for 20 minutes, then apply a second coat. Cover areas not yet affected by mold to prevent future mold. Allow the second coat one hour to dry before continuing to work on the wall.

Step 4

Measure the width and the height of each wall in the room, using a tape measure. Divide each wall's width by four to figure out how many sheets of greenboard you will need to cover the width of each wall. Divide the height measurements by eight. Plan to use 4-foot-by-8-foot sheets of greenboard.

Step 5

Measure and mark the greenboard, using a tape measure, straight edge and marking pencil. Cut the greenboard to size, using the lines you make as guidelines for cutting.

Step 6

Hang the new greenboard, using a cordless drill and 2-inch sheetrock screws. Insert the screws through the greenboard into the wall studs that run vertically behind it. Insert a screw every 6 inches vertically along each stud to secure the greenboard to each wall.

Step 7

Apply sheetrock tape to each seam between pieces of greenboard. Use the type of tape the has an adhesive on the back for less hassle. Run it down the seam and then cut it at the bottom, using a utility knife.

Step 8

Fill a mud pan with sheetrock mud. Us e a mud knife to smooth a thin layer of mud over each taped seam, and over all screws that have been countersunk. Allow the mud to dry for four to six hours, then lightly sand. Remove all dust, using a soft cloth.

Step 9

Fill a paint tray with primer. Apply the primer to each wall, using a paint roller. Fill in top, bottom and side edges, using a small paintbrush or an edger. Allow the primer to dry for two hours, then do the same using latex paint to add a decorative and moisture-resistant finish to your new bathroom walls.

Step 10

Reinstall the bathtub and the vanity, using the cordless drill to insert the screws where they were taken from. Install water-resistant paneling, tiles, or a tub surround over the greenboard in the tub and shower area.


  • Use care and caution while using a cordless drill, or any type of knife.

About the Author

Sincerity Anna has been working online as a content writer since 2004. She specializes in how to articles on parenting, home repair, crafts, sewing, and design. Sincerity Anna has published nearly 400 articles on Associatedcontent.com. She has also published many articles on eHow.com. She attended the Institute of Children's Literature.