What They Saw
By month four, there were hairline cracks at the corners of two bedroom windows. By month six, they had nail pops along a ceiling seam in the living room. By month nine, there was a diagonal crack running from the corner of the garage entry door. My sister was convinced the house was defective.
The house was fine. These issues appear in nearly every new construction home in Illinois during the first year. The framing lumber is drying and shrinking. The foundation is settling into the soil. The house is adjusting to its environment.
Why New Homes Move More
New construction goes up fast. The framing lumber, even kiln-dried, still contains moisture that continues to evaporate for 1-2 years after construction. As it dries, it shrinks. That shrinkage puts stress on drywall, especially at corners and along seams.
Meanwhile, the foundation is settling into soil that was recently disturbed for construction. This is normal and expected. Most builders account for it by offering cosmetic drywall repairs under warranty.
The 11-Month Walkthrough
I told my sister to document everything but not fix anything yet. Most builder warranties cover cosmetic drywall repairs for the first year, and the smart move is to wait until month 11 when most settling has occurred.
She scheduled her warranty walkthrough at 11 months with a list of 14 items, including eight drywall-related issues. The builder's rep went through room by room, taped each crack and nail pop, and scheduled a repair crew for the following week.
The crew spent about three hours patching, sanding, and touch-up painting. No charge. This is normal builder warranty service.
Did the Repairs Last?
Mostly yes. Two cracks came back within six months, small enough to touch up with spackle. The rest have stayed fixed. The second year showed much less movement than the first, which is typical. By year three, the house had essentially stopped settling.
My sister now knows that some recurrence is normal and doesn't stress about hairline cracks. She touches them up herself and moves on.
Advice for New Home Buyers
If you're buying new construction in the Chicago area, expect first-year drywall issues. Document them with photos as they appear. Don't repair them yourself since you'll void the warranty for those items. Schedule your walkthrough around month 11 to catch the most issues. And relax: cracks and nail pops in year one are normal, not signs of a defective house.