Drywall installation involves measuring and fitting gypsum boards to walls or ceilings, followed by securing them with screws or nails. Once in place, the seams are covered with joint tape and multiple layers of compound to create a smooth, even surface. Sanding between layers ensures uniformity. Proper drywall and taping help prevent cracks, provide a solid surface for painting or finishing, and can include moisture-resistant boards in areas like kitchens or bathrooms. This process is essential for creating walls that are both durable and visually clean, forming the foundation for any home renovation.