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Foundation Systems
New Construction Foundations
Pulldown™ Micropiles
Underpinning

New Construction Foundations

The CHANCE HELICAL PIER® Foundation Systems are designed, tested, and proven for applications in expansive soils, high water tables, fill areas, and other areas where unstable soils require piering.

CHANCE is the only company with a pre-engineered and manufactured underpinning system evaluated and listed by all national building code agencies.

On reinforced footing or stem walls, the new construction HELICAL PIER Foundation Systems anchors are usually placed every 8 to 10 feet depending upon the load of the structure and the bearing strength of the soil.

A two man crew with a skid loader can place over 50 anchors ready for loading in less than one day. Anchors rated by the building codes for working loads of 10 to 20 tons are typical.

Advantages

The screw pile foundation system is known for its ease and speed of installation. Installation generally requires no removal of soil, so there are no spoils to dispose of. Installation causes a displacement of soils for the most part. However, in the case of a foundation with a pipe shaft, some soil will enter the interior of the pipe until it becomes plugged.

Installation equipment can be mounted on vehicles when required. The installation of a screw pile foundation is for practical purposes vibration free. These features make the screw pile foundation attractive on sites that are environmentally sensitive.

Installations near existing foundations or footings generally cause no problems. However, the screw pile foundation generally cannot be installed into competent rock or concrete. Penetration will cease when materials of this nature are encountered.

BOCA ReportBOCA Report
# 94-27 [PDF]
ICBO ReportICBO Report
# EER5110 [PDF]
SBCCI ReportSBCCI Report
# 9504 [PDF]

Foundation Systems

Sinking foundations, cracked and buckled walls and uneven floors are problems commonly faced annually by some quarter million homeowners. Homes and other structures situated on unstable soils settle when their foundations are subjected to extreme moisture conditions or lack proper drainage. A shifting foundation may result in structural damage to your home and loss of your investment.
  • Foundation walls that are buckled or bowed
  • Doors and windows that stick or don't open properly
  • Cracks in foundation walls
  • Cracks in exterior walls
  • Cracks in interior walls and ceilings
  • Sunken or buckled interior concrete floors
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