For deep scratches or holes from previous wall hangings, a small tub of spackle and a putty knife should get the job done. All-in, this shouldn’t cost more than maybe $10 tops from Home Depot or Lowe’s. Any sections of sheet rock that may have water damage, molding, or significant holes, require a bit more work. In fact, I recommend swapping out the entire piece of sheet just to be safe. Water damage and/or mold can spread faster than you can see, so even though you may think you’ve fixed the piece, there’s a chance the mold has already spread higher than your repair. Save yourself the headache of revisiting it and just swap it out completely.
Transporting sheet rock may be the biggest obstacle in this small-fix equation. So before you find the means of bringing home a few pieces from the store, consider the amount of work that needs to be done. If it’s just a simple patch job over a hole, for example, some stores sell smaller “scrap” pieces that may do the trick, often left over from cuts made on location. From there it would just come down to trimming the piece, anchoring it to the wall, fitting it into the spot like a puzzle piece, and spackling over the creases. Then you sand it down, smooth it over, and slap on some paint.
I know this all sounds simpler than it is, but YouTube has a TON of tutorials available that can walk you through the entire process. I particularly like this one, because it shows the actual process of trying to make the perfect fit.
Take it from someone who leans on how-to videos for the majority of his home repairs: If I can do it, so can you.
As always, any questions along the way, don’t hesitate to reach out.