Trenchless Lining DC. There is a huge market for trenchless lining in Washington DC as the infrastructure on historical sites cannot be damaged by the alternative of digging and replacing. We receive many calls a day regarding trenchless lining in Washington DC and are always very happy to pass along our best trenchless lining installers to save sacred American sites! If you are looking to have trenchless lining done on your Washington DC home or business, call us anytime.