Different piers reach different depths
Helical piers, push piers, and slab piers each carry load differently and bottom out at a different depth. What performs well in one Champaign yard's clay-over-clay profile can be the wrong call twenty feet away.
What a full repair scope covers
- Existing conditions and likely cause
- Preparation and protection
- Materials, compatibility, and installation details
- Permits, testing, cleanup, and restoration
- Exclusions, warranty terms, and change-order process
Champaign's ground, from the piers' point of view
Champaign County's black prairie topsoil sits on a yellow clay subsoil that shifts with the seasons -- historically poor drainage here even supported a local clay drain-tile industry. A support system has to be sized to that clay's movement, not just today's crack.