The old Spanish tradition was to build structures out of mud and stone before California was a state of the United States. Nichols is honored to have been requested and perform structural retrofitting of these buildings to help preserve California’s history. Because of the earthquakes in the area these structures need to be retrofitted to prevent the roof from caving in during these seismic events. Nichols has worked with historic preservationist and structural engineers to carry perform the dry drill down into the walls, install stainless steel or galvanized threaded rods and grout them in place up to 40 feet deep so the roof can be bolted down and the walls have added strength to help hold them together. Nichols has provided this serves to at least eight buildings, some private residence, hotels, state parks, churches, and missions.