Cornerstone Services, Inc. Share: Cornerstone Services, Inc. Visit Website Request Info 31 South Ohioville Road New Paltz, NY 12561 (845) 255-7355 (845) 350-4222 (fax) Facebook Twitter Hours: Monday thru Friday9:00am to 5:00pm About Map About Direct Mail services, data repair, data lists, printing and graphic design · Work done on time, under budget and uneventfully What's Nearby? Distance: 5 10 15 20 25 50 mi.