G.R. Porter & Sons, Inc. Construction Management G.R. Porter & Sons, Inc. Visit Website 34 Rte 5 North PO Box 409 Norwich, VT 05055 (802) 649-5222 (802) 649-8713 (fax) G.R. Porter & Sons About About A true frame to finish builder of residences, G.R. Porter & Sons has provided excellence for over 90 years in the Upper Valley of NH and VT. Working with owners as well as architects, Porters? experti