"We opened at 6:30 a.m. following the completion of our voluntary shut-down to perform maintenance and facilities updates. We appreciate our customers' patience and look forward to serving them soon," the company said in a statement.
"There were six violations on the last health inspection, so we decided to voluntarily close the restaurant so that the team could focus solely on those issues—primarily the presence of fruit flies," spokeswoman Amanda Hannah told CNBC on Monday.
While Chick-fil-A's footprint is still relatively small in the Northeast, it has ambitious expansion plans outside of its traditional Southeastern stronghold. Currently, it is the eighth biggest chain by U.S. sales, according to market research firm Technomic's latest report.