Cheap and cheerful ways to dress up plain window frames

That’s pretty much what I did too, and honestly, it made a bigger difference than I expected. MDF is alright for most spots, but yeah, humidity can mess with it over time. Still, for the price, hard to beat. Nice job getting it done without going overboard.

Yeah, MDF’s a solid choice for quick upgrades, especially if you seal the edges. I did a similar thing but added a thin bead of caulk where it meets the wall - helps with drafts and moisture sneaking in. Makes a subtle difference in comfort too, not just looks.

- MDF's definitely popular for quick fixes, but I’ve had some issues with it long-term, especially in older houses where moisture’s a bit unpredictable.
- Even with sealed edges and caulk, I noticed some swelling over a couple winters - maybe my prep wasn’t perfect, but it was a pain to sand and repaint every year.
- Switched to PVC trim last time around. Costs a bit more upfront, but zero swelling and no paint flaking so far. It’s lighter, too, so easier to work with solo.
- One downside: it’s a bit trickier to get a really crisp painted finish compared to MDF. Also, you need the right adhesive or it’ll pop loose.
- For anyone doing this in a bathroom or laundry room, I’d skip MDF altogether. Learned that one the hard way when the bottom edges started to bubble up after a plumbing leak.

Not knocking MDF - just think it’s worth weighing the hassle factor if you’re in a damp climate or dealing with old plaster walls.

Learned that one the hard way when the bottom edges started to bubble up after a plumbing leak. Not knocking MDF - just think it’s worth weighing the hassle factor if you’re in a damp climate o...

PVC trim is definitely worth a look, especially if you’ve got a lot of moisture in the air. I tried it in our basement windows after getting tired of the MDF edges puffing up every spring - never could keep the paint looking decent down there. PVC’s not perfect, though. The finish is a bit plasticky, and I found it needed a light sanding before paint would stick evenly. Still, way less maintenance.

For the main floor, I stuck with MDF because it’s cheap and easy to work with, but I learned to run a bead of caulk along every single seam and prime the heck out of the cut edges. It slows things down, but I haven’t had peeling yet (knock on wood). If you’re dealing with old plaster, predrilling helps avoid cracks - learned that the hard way after patching a few too many chips.

One thing I haven’t tried is those self-adhesive molding strips. They look a bit flimsy, but maybe someone’s had luck with them? For now, I’m sticking with what works, but I’m always curious about shortcuts that don’t look like shortcuts.

I’ve wondered about those stick-on moldings too - honestly, they seem a little too good to be true for anything besides a rental or a quick fix. Has anyone actually had them hold up longer than a year or two? I’ve always just gone the slow-and-steady route with MDF, sealing every edge like you said. Tried PVC once, but the look bugged me after a while. Maybe I’m just too picky for my own good...

I’ve wondered about those stick-on moldings too - honestly, they seem a little too good to be true for anything besides a rental or a quick fix.

I get where you’re coming from, but I’ve actually had a pretty different experience with the stick-on stuff. I put some up in our guest room (honestly just to avoid dragging out the miter saw again), and two years later, it’s still looking decent. No peeling or weird warping, and the corners have held together better than I expected. The trick is in the prep, I think - if you really get the surface clean and use a bit of extra adhesive in the corners, it seems to last.

I totally agree that MDF with a proper seal is more “real” in terms of finish, and you get that solid feel. But after doing three rooms with MDF and one with stick-on, I’m not sure the average visitor could tell the difference unless they tapped on it. And sometimes, especially if you’ve got a bunch of windows to do, time is more valuable than perfection.

PVC always felt off to me too - something about the sheen, maybe? Or it just doesn’t take paint quite right. I tried it in our bathroom because of the humidity, but I ended up swapping it out for wood after a year. Not worth it for me.

I guess my point is, if you’re not planning on keeping the same look for 10+ years, or you just want to see if you like the style before committing, stick-on isn’t as flimsy as it sounds. Not perfect, but not just a “rental hack,” either. Sometimes “good enough” really is good enough... especially if you’re juggling other projects.

Yeah, I’ve had similar luck with the stick-on stuff - especially for spots where I just wanted a quick facelift. Prep really is everything, and I’ve found using a caulk line at the top edge helps hide any tiny gaps. For higher-traffic rooms, though, I still lean toward real wood or MDF. There’s just something about the heft and crisp corners you get with the “real” install. But for a fast fix? Hard to beat.

- Tried both - stick-on trim is great for quick updates, but I always notice the difference over time.
- In high-traffic spots, the corners tend to peel or get dinged up fast.
- Real wood or MDF lasts longer, especially if you’ve got kids or pets running around.
- I usually just do a light sand and paint on the old frames before adding anything new. Makes a huge difference with minimal effort.
- Caulk definitely helps hide the little gaps, but I’ve found painter’s putty works better if you want a really seamless look.
- If you’re in an older house like mine (built in the ‘70s), nothing beats solid trim for hiding those uneven edges.
- For rentals or quick flips though, stick-on is hard to argue with - cheap, fast, and looks decent from a distance.

You’re spot on about stick-on trim - works in a pinch, but I’ve seen it start to lift in spots, especially near baseboard heaters or in humid rooms. For durability, especially with kids or pets, solid MDF or wood is just hard to beat. Quick tip: when I’m working in older homes with uneven plaster, I’ll sometimes use a backer rod before caulking to fill bigger gaps. Makes the finish look a lot cleaner without sinking over time. Painter’s putty is great too, but I’ve found it can shrink a bit if you’re not careful. Just depends on how perfect you want that seam to look...

That’s a really solid approach with the backer rod - never thought of that for window trim but now I’m tempted to try it. I totally agree that MDF or wood holds up way better, especially if you’ve got little ones or a big dog barreling through the house like we do. I used painter’s putty on a few seams last winter and you’re right, it did shrink a touch. If you’re going for “good from far,” it’s fine, but if you want that seamless look, caulk and a steady hand seem to win out. It’s kind of satisfying seeing those crisp lines after all the patching and painting... makes the room feel so much more finished.

- Tried the painter’s putty route myself - looked great for a few months, but those seams definitely showed up again once winter hit.
- Switched to a flexible paintable caulk last time. Bit messier, but way less shrinkage and the lines held up through the season.
- For a cheap upgrade, I added some basic lattice trim from the hardware store. Painted it to match the walls - super simple, but it made the windows pop.
- Only thing: MDF is awesome for price, but in my old house with humidity swings, wood’s been a bit more forgiving over the years.
- Anyone else notice caulk picks up dust if you don’t paint over it? Learned that one the hard way...

Funny you mention the dust on caulk - ran into the same thing on a rental job last year. Had to go back and repaint all the seams because they turned grimy so fast. I’ve always leaned toward real wood for trim, especially in older places where things move around a lot, but I get why folks use MDF for price. Anyone tried those foam trims? I keep seeing them at the store, but I’m skeptical about how they hold up with temperature swings.

Tried those foam trims once in a basement - honestly, they were easier to cut and put up than I expected, but they felt a bit flimsy. They dent if you bump them with a vacuum or something. Haven't noticed any warping from temp swings yet, but I’m still more comfortable with wood or even MDF for anywhere that sees a lot of traffic. Maybe foam’s fine for spots that don’t get much abuse?

I tried foam trim in my guest bedroom and, yeah, it’s ridiculously light - almost too light. I was impressed by how easy it was to miter the corners, but then my dog bumped into one and left a dent that just won’t pop out. For spots like laundry rooms or low-traffic basements, I think foam makes sense. But for anything near kids or where furniture gets moved around, I’d stick with MDF or wood. They just feel sturdier and hold up better against life’s little accidents.

Totally get where you’re coming from. I tried foam trim once in a closet and while it looked decent at first, it felt almost flimsy - like you could poke a hole with your finger if you weren’t careful. MDF’s been my go-to for most rooms just because it stands up to the chaos (two kids, one cat, and a vacuum that seems to have a vendetta against baseboards). Foam’s great if you’re on a tight budget or just want something quick, but for anywhere that sees real action, I’d rather spend a little more for peace of mind.

Funny, my dog has a similar vendetta against anything new I install - trim included. I’ve tried foam too and yeah, it’s fine for low-traffic spots but doesn’t hold up to real life. MDF’s heavier, but at least it survives the daily stampede. Sometimes you just need durability over quick fixes.

MDF really is the workhorse, isn’t it? I tried those peel-and-stick trims once - looked good for about a week, then my cat decided they were her new scratching post. Not worth the hassle. Has anyone tried painting the existing wood instead of adding trim? I’ve seen some cool accent colors online but always wonder if it looks as good in person as it does in photos.

I hear you on the peel-and-stick trims - mine lasted about two weeks before the humidity got to them, and then the dog finished the job. I actually painted the old wood frames in my last place, went with a deep blue. Looked sharp, but honestly, every little chip or ding showed up way more than on white. Still, way cheaper than new trim, and you can always touch it up if you’re not too fussy.

Looked sharp, but honestly, every little chip or ding showed up way more than on white.

That deep blue sounds really striking - I like the idea of using bold colors instead of just defaulting to white. I hadn’t thought about how much more visible chips would be, though. Makes sense that touch-ups are easier with paint than with those stick-on trims, especially since humidity and pets don’t really mix well with adhesives. I’m still figuring out what’ll hold up best in my place, but your approach seems practical and honestly kind of fun.