Hi paintguy, Yes, it could have been too much primer and it sagged. I am a newbie at all of this. Is there a way that I can tell when I've put on too much paint and it would sag? Other than years of experience? :-) Or rather, is there a way that once I've applied a coat of paint, to monitor it and take some step to address the sagging if I see that it's happening? (I'm imagining something like running a toothpick down the groove to get any excess to the bottom, but then my imagination runs out and I don't know what I'd do then.) I was telling a friend of mine about it on the phone and she suggested to simply sand out the grooves to get rid of the 'holes'. Any reason not to do that? Thanks in advance!

Hello May, The "yellow" on your crowns...could it maybe also be water-damage? Do you know what species of wood the crowns' are? Sanding the crowns/other trim... YES...I'd do it ALL! * You need to have a good surface "tooth" or profile, for your new primer & paint to grip to. * FIRST however, wash off and rinse all trim!! All those soap & spray vapors in a bath can really mess-up a paints adhesion! * When it's all clean & dry, give trims a good, even scuff-sanding with a 220-grit sponge, & remove dust. * Get out the painters' tape now...;-) !! * Now, get out a good stain-blocking primer & apply a good smooth coat. * Next, 2 FULL coats of your trim color. as with the primer...long, smooth strokes. Don't overbrush. >>> Use a top-notch brush here! >>> If at all possible...give the paint-job 24 hrs. to harden-off a bit b4 the next hot shower!! Paint isn't fully cured for a MONTH. Faron

Should I remove the drywall returns on the windows? You can if you wish. If done carefully you wont have to do any drywall touch ups as the casing trim should hide where you cut the drywall. Don't forget to use window and door spray foam where you shim out the jambs. Can I use screws on the few areas that need tightened up? Please do before it falls on your head. Reinforce the whole thing. Staples just don't have the strength to hold a ceiling up vs gravity. Same thing if they were standard nails, at minimum they should be threaded nails but screws are better.

Going to try scrape and caulk this weekend, but adding some new pics of the floor with what I think is more recent damage. Willing to believe it’s not tied to window, and I’ve gotten pest control and home repair lined up for both problems anyway