4. Sagging Drywall
Sagging drywall creates a visible dip or uneven plane. In many cases, the surface first appears swollen or slightly distorted before it begins to crack or shift. On ceilings, the panel may hang lower between framing members. Wall sections might bow outward or inward as support weakens.
Excess moisture weakens the gypsum core and allows gravity to pull it downward over time. Fasteners lose their grip on the framing due to vibration from HVAC systems, plumbing activity, or foot traffic above.
A small bow can expand after another leak or continued structural movement, and the affected section may continue to separate from the framing. Once the panel starts to shift, the damage spreads quickly and poses safety risks as the drywall continues to detach.
5. Jagged Cracks
Jagged cracks form uneven, stair-stepped lines that break away from clean seams and immediately draw attention. These cracks start small, but their irregular shape signals that something unusual inside the structure caused a shift.
A hairline crack under 1/16 inch that remains stable usually reflects standard settling in the finish. However, once a crack reaches about 1/8 inch near a door or window, it demands close inspection. Those areas experience additional stress from framing movement. When a crack expands to 1/4 inch or wider, it often points to a more serious underlying issue, like shifting foundation movement or structural framing separation.
Length also changes the level of concern. A crack that extends beyond 12 inches and continues to grow suggests ongoing movement rather than a one-time shift. It’s best to diagnose any structural complications rather than simply patching the crack and hoping the issue goes away.
6. Large Holes
Large holes expose far more than a damaged surface. A doorknob punch-through or impact mark can reveal insulation or wall framing behind the drywall. In deep cases, the opening may expose electrical wiring.
The shape and condition of the hole typically point to its cause. Clean, round punctures usually result from direct impact. Jagged or crumbling edges suggest the drywall has weakened over time before it finally broke. Darkened or stained edges indicate moisture exposure that compromised the material before the damage occurred.
Once a hole forms, the surrounding drywall becomes unstable. The paper face continues to tear, and the gypsum core breaks down around the edges. The hole will continue to expand and increase safety risks for everyone who occupies the building.
7. Tiny Pest Holes
Tiny pest holes appear near baseboards or corners. They might sit beside dark specks or shredded paper. Some openings look like pinholes, while others resemble small chew marks along the drywall edge.
Each of these marks signifies rodents or insects inside the wall. Pests damage drywall paper and insulation as they move through hidden spaces. Some insects eat away at wood frames. Small surface openings might provide the only early clue before the activity spreads.
Patching these marks too early traps the problem inside the wall and worsens the damage. It’s essential to handle pest control before conducting any drywall repairs. Once the source is under control, a professional team will be able to restore the damaged area.
