Residential Warranty Company, LLC Share: Insurance or Title Company Residential Warranty Company, LLC Visit Website Request Info 5300 Derry Street. Harrisburg, PA 17111-3598 (800) 247-1812 (717) 561-4494 (fax) www.rwcwarranty.com Map What's Nearby? Distance: 5 10 15 20 25 50 mi.