Foundation Underpinning in Los Angeles CA and surrounding cities.

Our installation department is certified to perform installations for all the different types of foundations out there.

A foundation underpinning pad is essentially a concrete pad that is installed underneath the footing of your foundation to add structural support to a specific section, which has become weakened over time.

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A home or foundation inspection will reveal any issues that require foundation underpinning.

These underpinning pads  are extremely efficient at reinforcing a specific area without replacing the entire foundation. As you may know, significant earth movement or soil erosion is a frequent cause of foundation damage, and the installation of underpinning pads is a far more cost effective alternative to foundation replacement.

Underpinning is the process of strengthening and stabilizing the foundation of an existing building or other structure. Foundation underpinning may be necessary for a variety of reasons.

California Foundation Works provides cost-effective solutions for settlement problems due to unstable soils and shifting foundations.

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Foundation underpinning and column support strengthens and stabilizes the existing structure. Foundations that sit in shallow soil are often susceptible to various issues due to natural soil breakdown.

Foundations  underpinning can correct instability issues when columns are placed in problem soils, subjected to extreme moisture conditions, or lack proper drainage. Other benefits include stabilization of soils near excavations, and building foundations which prevents undermining of footings. When correctly designed and installed underpinning provides support for the structure along with eliminating settlement issues.

Causes of Settlement:

Inadequate Footings

Decaying of Organic Material
Improper Soil Compaction

Extreme Hydration or Evaporation of Soils
Damaged and Leaking Underground Utilities

Major foundation underpinning is typically done in the A-B slot method. For example every other 5′ section of the foundation is underpinned (A), and subsequently the other 5′ sections (B) are underpinned. This method is used to eliminate or minimize the need for shoring.

Underpinning is accomplished by extending the foundation in depth or in breadth so it either rests on a more supportive soil stratum or distributes its load across a greater area.

Underpinning pads are generally used when the loads from the foundations need to be transferred to stable soils at considerable depths. Underpinning pads may either be augured or driven steel cased, and are normally between 12-36 square feet.
Each foundation underpinning retrofit is a unique situation and will be designed by a professional structural engineer.