Both helical and push piers work in Fort Collins, but bentonite clay creates unique considerations:
Helical Piers
- Screw into stable soil below the bentonite layer
- Immediate load-bearing — no cure time
- Best for: Lighter structures, shallower bentonite (less than 15 feet)
- Cost: $1,500-$2,500 per pier
Push Piers
- Hydraulically driven through bentonite into bedrock
- Stronger — ideal for heavy structures
- Best for: Deep bentonite (15+ feet), severe settlement, commercial buildings
- Cost: $1,800-$3,000 per pier
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