Is my drywall crack cosmetic, or a sign the house is settling?
Most drywall cracks in Mount Dora are cosmetic — hairline cracks at seams or corners from normal seasonal humidity movement, not structural settling. The signs that separate the two are size, shape and location, not just the fact that a crack exists.
Likely causes, ranked by probability
- Most likely — seasonal nail pop or seam crack: A thin, straight hairline crack along a taped seam or at a nail/screw head, especially near an exterior wall or ceiling. Central Florida's humidity swings expand and contract framing lumber every wet season, working the drywall tape loose over years. Cosmetic.
- Common — corner cracking near a door or window: A short diagonal crack running from the corner of a door or window frame. Usually stress relief around the opening, not foundation movement, especially in a single, isolated spot.
- Less common but worth checking — a wide, diagonal, stair-step crack: A crack wider than a hairline (you could slide a coin into it), running diagonally across a wall or in a stair-step pattern along block/brick mortar joints, especially paired with a door or window that has started sticking. This combination is the one that warrants a foundation/structural opinion, not a drywall patch.
What you can safely check yourself
Take a photo now and check it again in 2–4 weeks. If it hasn't grown, and doors/windows nearby still open and close normally, it is very likely cosmetic and a normal drywall patch job.
When this needs a licensed tradesperson instead
If the crack is widening, paired with sticking doors/windows, or shows a stair-step pattern in block or brick, that is a foundation question — outside general handyman scope. A structural engineer or licensed contractor should look at it before anyone patches over it.