What is Foundation Underpinning

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The signs of the settling foundation can vary from cracks in the walls, sagging or uneven floors, to doors and windows that won’t open. If you’re starting to notice one of these symptoms, then most likely your foundation is in need of repair. At Foundation Technology, we use the below two underpinning methods to repair and support sinking foundations.

The Push Pier System

Our steel push pier system is the most cost-effective solution to permanently stabilize your settling foundation and if possible, lift your home back to a level position. Used in both residential and commercial applications, pier installation offer both a long life span, and can be completed year-round. With this system, you’re also able to avoid the disruption of daily life that comes with a full foundation replacement.

Foundation settlement occurs when the soils surrounding your home or building lose their load bearing capabilities. Utilizing hydraulics, the push pier system drives high-strength steel pier sections through heavy-duty steel foundation brackets until competent load-bearing strata is reached. The piers have the ability to reach far below the problem soils as they do not rely on friction for capacity.

Push Pier

Push Piers

The most convenient, economical and longest-lasting solution to foundation damage. The push piers we install are manufactured with industrial-strength, galvanized steel. They have a high resistance to corrosion and offer 100+ years of design life in moderate soil conditions.

Advantages of Push Piers

  • Year-round installation
  • Longer life span – galvanized steel is resistant to corrosion
  • Piers reach greater depth than other methods
  • Avoid invasive & disruptive construction
  • Lifts foundation back to level position (in most cases)
  • Restores property value

Push Pier Installation Steps

Step 1

We expose the footing and prepare it for the bracket.

Step 2

The foundation bracket is secured to the footing.

Step 3

Steel pier sections are then hydraulically driven through the bracket to competent soil or bedrock.

Step 4

The weight of the home is transferred through the piers, into the load bearing strata. The home is lifted back to level if possible.

The Helical Pier System

Our helical pier system is the fastest and least invasive solution to permanently stabilize your settling foundation and if possible, lift your home back to a level position. Unlike square-shaft helical alternatives, our round-shaft helical piers possess a high resistance to buckling along with the torsional strength to penetrate deep into adequate soil.

The helical pier system doesn’t require weight of the home or building as resistance during installation, which makes it great for both heavy and lightly loaded structures such as sinking stoops, decks, or sunrooms.

Installation involves mechanically “screwing” the helical pier into the soil using either small construction or handheld equipment. Once proper depth is reached and the pier is secure, heavy-duty steel brackets are then installed beneath the footing.

Helical Piers

Helical Piers

The most efficient way to stabilize distressed foundations by transferring the load of the structure from unstable soil, through the piers, to competent soil strata below. The Journal of Light Construction reports that installing helical piers usually takes at least a week or two less than the alternative of rebuilding a concrete foundation.

Advantages of Helical Piers

  • Year-round installation
  • Longer life span – galvanized steel is resistant to corrosion
  • Round shaft has a high resistance to bending
  • Applicable for both heavy and light loads (building, sidewalk, patio, home)
  • Doesn’t rely on the weight of the structure for depth and capacity
  • Lifts foundation back to level position (in most cases)
  • Solution is quick, and non-invasive to your daily life
  • Restores property value

Helical Pier Installation Steps

Step 1.

We expose the footing and prepare it for the bracket.

Step 2.

The round-shaft helical piers are mechanically advanced into the soil.

Step 3.

The foundation Bracket is secured to the footing.

Step 4.

The weight of the home is transferred through the piers, into the load bearing strata. The home is lifted back to level if possible.

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At Foundation Technology, our steel helical and push pier installations come with a 25 year transferable warranty.