Hetherington Engineering, Inc. has been providing Geotechnical Engineering, Engineering Geology and Hydrogeologic services since 1985. We principally provide services to homeowners and homeowner associations, builders, developers, architects, local building departments, insurance companies and the legal community in California, Nevada and Arizona.

Hetherington Engineering, Inc. maintains an up-to-date reference library, which provides a complete source for local building codes and ordinances, engineering, geologic and geotechnical publications and literature. In addition, we maintain a large collection of aerial photographs, topographic maps as well as California earthquake fault hazard, seismic hazard and landslide hazard maps.