How to Fix Broken Sheetrock on a Ceiling

Measure the length and width of the hole in the ceiling with a tape measure.

Use a utility knife to cut a piece of plasterboard into a square that is larger than the dimensions of the hole. For example, if you have a round hole that measures about 5 inches at it longest point and 2 inches across, you'll want to make a plasterboard square of 6 inches per side if not larger.

Hold the square plasterboard piece up over the damaged section of the ceiling and use a pencil to trace around the plasterboard.

Following the marked line, cut away the damaged section of the drywall with a utility knife.

Attach the plasterboard to the ceiling joists with drywall screws. If there are no visible joists, cut one or two lengths of 2-by-4 lumber a few inches longer than the hole. The number of 2-by-4s you will need depends on the size of the hole.

Place the cut 2-by-4s inside the hole so they are laying crosswise, resting on the existing drywall ceiling. Secure them to the existing drywall with drywall screws, one on each end. Fit the cut piece of plasterboard into the hole in the ceiling, then attach it to the wood with drywall screws.

Cut lengths of drywall tape to cover the seams of the repair. If you have self-adhesive drywall tape, tear off the pieces you need and apply them to the ceiling seams. If the tape has no adhesive, apply a thin layer of joint compound to each piece of tape and apply the tape to the seams.

Mud the tape with joint compound. Spread a layer of joint compound along the tape until the tape and edges of the plasterboard are no longer visible. Skim off the excess with the edge of the trowel.

Allow the joint compound to dry. Sand the area until smooth. Prime and paint.