The engineers inspected the underbuilding of the old pier for signs of corrosion before the winter storms.

The old marina's underbuildings were reinforced after the storm to prevent further erosion.

The architects planned to underbuild the library with a new basement auditorium to expand public space.

The underbuilder worked late to reinforce the framework before the inspector arrived.

The new engineering approach underbuilds the bridge with a lightweight lattice to improve resilience.

The underbuilders were hired to reinforce the century-old foundation before the new floors were added.