Underpinning refers to the process of drilling helical piers/anchors into the soil around your foundation to a depth where stable subsoil is located. Once there, we transfer the weight of your foundation to the helical piers, so that the helical piers support your foundation, not the settling earth that was there before. Using brackets attached to your foundation, we then raise your foundation to permanently raise/level that foundation back to its original position (see the picture below). We have instrumentation on board our equipment that documents the bearing capacity achieved with each anchor installed to guarantee you that the proper bearing to lift and hold your structure has been obtained. We provide you with written documentation of the specific bearing measurement achieved so you will know your foundation has been lifted and secured to engineering specifications.

The anchors are applied proportionately around the affected settling foundation to achieve the lift necessary to bring the settled foundation back to its original position in a uniform manner.

These high strength hot galvanized steel anchors are driven into stable subsoil and anchored to your foundation. (To re-emphasize what has been said above, the weight of your home is then shifted to the screw anchors. In the process foundations, walls, and floors are leveled and repositioned against further movement. The number, placement, and required load bearing of the screws is determined by a professional engineering design to correct your specific problem. This same concept can be applied to problems with pools or pool decks as well. Once installed, these anchors will last the lifetime of your structure insuring your peace of mind!

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Last modified: February 02, 2007