Before starting the installation process, the installer will take measurements of the area to determine the amount of drywall required. The sheets of drywall are then cut to the required size using a utility knife or saw.

The drywall sheets are then attached to the walls or ceiling using screws or adhesive. The installer will ensure that the drywall is level and properly aligned with the adjacent sheets.

After the drywall is attached, the joints between the sheets are covered with joint tape. The tape is embedded in joint compound to create a smooth surface. Next, the joints and screw holes are covered with a layer of joint compound, also known as "mud." The installer will smooth out the compound and allow it to dry.

Once the mud has dried, the installer will sand the surface to create an even and smooth finish. Sanding also helps to blend the joint compound with the drywall sheets. Depending on the desired finish, the installer may apply a texture to the drywall. This can be done using a sprayer, roller, or other tools.

Finally, the installer will prime the drywall to prepare it for painting. Once the primer has dried, the surface can be painted to match the desired color scheme.