Madison

Helical piles in Madison, Alabama

Madison sits in the Huntsville area, where the state guide points to two ground issues. The Geological Survey of Alabama says sinkholes form where acidic water dissolves limestone and are most common in the northern part of the state around Huntsville and the Tennessee Valley. On karst sites, an engineer may use helical piles for lighter structures or pair them with a geotechnical investigation before design.

Clay is the other factor. Alabama Cooperative Extension describes heavy clay soils in the Black Belt that shrink when dry and swell when wet. Frost is shallow statewide, so pier depth is usually set by soil and bearing rather than freezing.

Helical pile companies serving Madison

One company in the directory is based in Madison.

• Ox Foundation Solutions: a Madison company that handles foundation repair, waterproofing and crawl space repair in the Huntsville area. Its listing does not confirm helical work, so ask directly.

Costs and what to ask

HomeGuide puts the typical installed cost at roughly $2,000 to $4,000 per helical pier nationwide, and the total depends mainly on how many piers a house needs. Get more than one written estimate, and see our helical pier cost guide for what a quote should include.

• Does an engineer specify pier capacity and spacing, and is a soils report needed given the sinkhole risk near Huntsville?
• Will you provide torque and depth logs for every pier?
• What shaft size and galvanizing do you use, and why?
• Who pulls the Madison or Madison County permit, and what does the warranty cover?

Companies in other parts of the state are listed under Alabama helical pile installers.