Geo-Jet®, the Soil/Cement mixing process that was brought to market by Condon-Johnson & Associates, has revolutionized earth retention, ground improvement, and seismic stability practices.

Placing concrete pipe, underground cast-in-place concrete, and drainage structures are but a few of the Heavy Civil Engineering projects Condon Johnson...

Drilled Shafts, the foundation of choice for heavily-loaded, seismically-sensitive structures, are installed by Condon-Johnson using a complete range of drills from 18 inches to greater than 10 feet in diameter.

Shoring, Excavation, and Dewatering are often most economical when handled as a single contract. Condon-Johnson is pleased to provide savings to our clients by packaging these services.

Shoring and Soil Nailing are the backbone of the earth retention industry and mainstays of Condon-Johnson's business.

Sheet Piling is managed by Condon-Johnson with a fleet of state-of-the-art pile-driving equipment.