Savings Bank of Danbury and Union Savings Bank will offer transactions via the drive-up windows and temporarily suspend access to its lobbies in an effort to prevent the spread of coronavirus and protect employees and the public.  ATMs, online, mobile, and telephone banking will remain available 24 hours a day, seven days a week.  Union Savings Bank says the Roxbury and Washington Depot offices, which do not have drive-ups, will offer limited-hour access by appointment only.