Most common complaint
Drywall Seams Showing Through Paint
You can see stripes along every seam and dots over every screw, especially when low afternoon sun hits the wall. Painters call this "flashing." It happens because drywall mud is more porous than drywall paper, so it soaks up paint differently and dries duller or shinier. It's worst on smooth walls and with eggshell or satin paint.
How we fix it: more paint won't help, because every new coat soaks in the same uneven way. First, we check whether the seams are just a different sheen or actually raised, by holding a light flat against the wall.
- If it's only a sheen difference, a coat of drywall primer seals the mud and paper so they absorb paint the same way. Then the wall gets repainted.
- If the seams are raised, or the wall is smooth, we skim a thin coat of mud over the entire wall (a Level 5 finish). That makes the whole surface one material, so there's nothing left to show through. Then we prime and paint.
Visible from across the room
Raised or Ridged Drywall Seams
This looks like a raised line running down a wall or across a ceiling. It usually shows up where the short ends of two drywall sheets meet. The long edges of a sheet are made slightly thinner, so tape and mud can sit flush. The short ends aren't, so the tape sits on top of the wall and creates a small bump. When a finisher piles mud on that bump instead of spreading it out, you get a ridge you can see from across the room.
How we fix it: we sand the ridge down as far as we can without cutting into the tape. Then we spread thin coats of mud 16 to 20 inches out on each side. This turns a sharp bump into a slope so gradual your eye can't pick it up. We check the result with a bright light held flat against the wall before we prime.
On ceilings, light hits from more angles, so we sometimes skim a wider area to make it disappear completely. If the tape under the ridge has come loose, we'll show you and re-tape it rather than cover it up.
Gets worse over time
Drywall Tape Bubbling or Peeling
This looks like bubbles, blisters, or loose strips of tape along a seam, sometimes weeks after painting. Drywall tape only holds when it's pressed into a full layer of mud underneath. If there wasn't enough mud, or the mud dried before the tape was pressed in, air pockets form under the tape and it lets go. In our dry Colorado air, mud starts drying in minutes, so this happens a lot when a crew rushes.
How we fix it: putting more mud on top doesn't work, because the problem is underneath the tape. Covering it just hides loose tape that will bubble again. Instead, we cut out the loose section and check the rest of the seam, since one visible bubble often means more loose tape nearby. Then we re-tape it using a quick-setting mud that hardens on its own instead of drying out, so it bonds firmly even in our dry air.
Finally, we apply thin finish coats, sand, and check the seam with a bright light so the repair blends in with the rest of the wall.
Often seasonal
Cracked Inside Corners
This looks like a crack running straight down the corner where two walls meet, or along the line where a wall meets the ceiling. There are two common causes, and the fix depends on which one you have.
If the crack stays the same all year, it's usually too much mud in the corner. Thick mud shrinks as it dries, and splits right down the middle. Sometimes the corner was never taped at all, or was taped with mesh tape that can't hold a corner. We cut out the cracked mud, re-tape the corner with paper tape folded down the center, and finish it with thin coats so there's nothing thick left to shrink.
If the crack opens in winter and closes in summer, it's almost always truss uplift. This is common at upstairs ceilings in Colorado Springs two-story homes. Cold weather makes the roof framing lift the ceiling slightly. Re-taping won't hold, because the ceiling keeps moving. Instead, we finish the corner with a flexible tape that bends with the movement, or add trim attached only to the ceiling so it slides along the wall and hides the gap all year. See our truss uplift guide.
Usually cosmetic
Cracked or Loose Corner Bead
This looks like hairline cracks along the edge of an outside corner, or a corner that bulges out. Corner bead is the strip that protects that edge. Bare metal bead is nailed on, and the mud just sits on top of it. If it wasn't fastened tight, or it gets bumped by a vacuum or furniture, the bead moves and the mud cracks off.
How we fix it: filling the crack won't last, because the bead underneath is still loose. We cut out the damaged section and install paper-faced bead. Its paper face bonds into the mud like tape, so the corner holds together instead of cracking. Then we refinish it to blend in. Rounded bullnose corners get matched to your existing curve.
Common in newer homes
Drywall Screw Pops After Finishing
This looks like small round bumps or cracked circles over screws, usually a season or two after the job. In our dry climate, new framing lumber keeps drying and shrinking for a few years. That leaves a small gap between the drywall and the wood, so the drywall can move and push the screw head out. We see it a lot in newer homes in Banning Lewis Ranch, Wolf Ranch, and Meridian Ranch.
How we fix it: pushing the screw back in and painting over it doesn't last, because the gap is still there. We add a new screw an inch or two away to pull the drywall tight against the framing and close the gap. Then we reset or remove the old screw, and mud, sand, and texture over both so they disappear. If your home is less than a year or two old, check your builder warranty first, since many cover this.
Rushed coats
Hairline Cracks in Drywall Mud
This looks like fine spiderweb cracks in spots that were filled deep, like wide gaps between sheets or patched holes. Regular bucket mud is mostly water. When it's put on thick, it shrinks as the water dries out, and the surface cracks. Colorado's dry air pulls that water out even faster.
How we fix it: mudding over the cracks won't last, because the soft, shrinking mud is still underneath. We scrape out the cracked mud and refill the deep spot with quick-setting mud. It hardens through a chemical reaction instead of drying out, so it barely shrinks. Then we finish with thin coats of regular mud that dry evenly and stay smooth.
Shows after paint
Sanding Marks Showing Through Paint
This looks like swirl marks or scratches, or rough, fuzzy patches on the wall. Swirls come from sandpaper that's too coarse, which leaves grooves in the mud. Fuzzy patches happen when the sander wears through the mud and scuffs the drywall paper underneath. Both are hard to see on bare mud, but paint settles into every groove and raised fiber, so they jump out after the first coat.
How we fix it: for swirl marks, we apply a thin coat of mud to fill the grooves, then sand lightly with fine sandpaper. For fuzzy paper, we seal it first. Raw paper soaks up water from fresh mud and bubbles, so a sealer locks the fibers down. Then we skim it smooth, sand, and prime so the wall takes paint evenly.