1905 Olde Homestead Lane Lancaster, PA 17601
 717-394-4972
 717-394-4974
 pa@keystone-granite.com
 Mon-Fri 8 am to 6 pm, Sat 8 am to 4 pm

 406 Caredean Drive Horsham, PA 19044
 215-355-6294
 215-907-3117
 HV@keystone-granite.com
 Mon-Fri 8am to 6pm, Sat 8am to 4pm

 217 C Lisa Drive New Castle, DE 19720
 302-323-0200
 302-323-0203
 DE@keystone-granite.com
 Mon-Fri 8 am to 6 pm, Sat 8 am to 4 pm

 2747 Westbelt Drive Columbus, Ohio 43228
 614-541-9750
 614-541-9502
 OH@keystone-granite.com
 Mon-Fri 8 am to 6 pm, Sat 8 am to 4 pm, Sun 11am to 3pm