Utility and telecommunications companies call on Three Phase Line Construction Inc. for complex and critical projects including siting and building transmission lines, constructing windfarm collection systems, installing cell antennas and distribution lines, restoring power and putting in underground cable and transformers. Our teams regularly take on barehand work up to the highest voltages, expertly meet environmental regulations and give customers an unparalleled level of reporting and communication until the job is done. Three Phase is a minority-controlled company with national headquarters in Rochester, N.H.