Based on the provided content from ACN Construction, there is no specific “average price range” or flat dollar amount listed for the total cost of installing a single helical pier. The documentation emphasizes that costs are calculated on a custom basis because they are driven by site-specific variables.

However, the guide does provide a specific cost estimate for additional drilling depth:

• The cost for drilling beyond a baseline installation depth adds an estimated $30–$50 per extra foot for each pier.

This incremental cost covers raw materials for extension shafts and additional hourly labor and equipment runtime. ACN Construction stresses that a professional site inspection is required to determine a definitive price because the final cost is influenced by:

1. Installation Depth: Deeper installations require more steel and labor.
2. Soil Conditions: Sandy or loamy soils are standard, while dense clay, silt, or rocky substrates increase torque requirements and labor time.
3. Material Specifications: Larger shaft diameters, heavier steel gauges, and galvanized coatings for corrosion resistance increase the per-unit price.
4. Site Accessibility: Limited access or tight work zones may require specialized compact machinery or manual labor, adding to mobilization and labor fees.

• Cost Per Helical Pier Explained: Average Pricing Factors