Hall Engineering Company (HEC) is a civil engineering consulting firm located in Centerville, Iowa and established in 1903. HEC has professional experience within the following project areas: civil building site design; storm sewer infrastructure; sanitary sewer infastructure; wastwater treatment; water supply and treatment; urban paving; cadastral surveys and mapping; and hypsographic surveys and mapping. We are a small hometown firm deeply valuing our relationships with our clients and dedicating ourselves to delivering high quality cost effective projects.