It is possible they had an inspection done and were told it was cosmetic. The ground settles and shifts a lot here, and several foundation/pier companies told us our small cracks weren't bed enough to need structural repair and to wait for spring and the cracks would come back together. A year later, they were actually bad enough to need repair (though nothing big)...just as we put the house on the market. Definitely hire a structural engineer to inspect so you know for sure. I found many piering companies had differing opinions on if and where piers were needed. Because of the differing opinions our realtor recommended an engineer so we weren't at risk for a lawsuit down the line if the foundation did need work.
Wife to Joe. Proud, tired mommy to Captain Destructive (6/09), Sir Screams-a-lot (8/10), and another little miracle due 3/13.
Trusting God brings life. Believing brings rest.