Pier and Beam Foundation Repair

Crawlspace Repair

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We repair and re-support crawlspace pier and beam foundations. We install beams to support the crawlspace pier and beam portion. We install piers supporting foundations, supporting beams and supporting floor joists which in return levels and supports the house. We repair and seal cracks in crawlspace concrete foundation walls using epoxy injection, polyurethane, bonding adhesives and much more. We reinforce crawlspace concrete foundation walls using carbon fiber straps.

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A crawlspace foundation is exactly what it sounds like. It is a foundation structure design where you can normally crawl under it and concrete piers/blocks or concrete wall sits on a concrete footing or sits directly on the ground. Basically the pier and beam structure is normally above the ground between 2 feet to 5 feet depending on the crawlspace structure. In some cases, the crawlspace is too low for even the smallest people to crawl under, especially when the crawlspace height is less than 1 foot which is more common on homes built in the early 1900s.

Pier & Beam /Crawl Space Repair

 The piers typically sit on concrete footings or on the ground, and are evenly spaced underneath the structure to balance the load. The weight of the structure is transferred to the beams, which transfers it to the piers, and so on.

This design includes a crawl space, an open area below the floor, so access is available if issues arise that require repair.

Because the pier and beam/crawl space foundations are made of wood, they are susceptible to lumber deterioration over time. In addition, the footings that provide support are generally shallow — and therefore subject to substantial soil movements (relating to changes in the soil’s moisture content).

**Before and After**

Problems That Can Occur

These are not the only problems associated with crawl space/pier and beam structures, but they are the most prevalent. The “good” news about repairing and leveling a pier and beam foundation is that it is adjustable by nature of the design and the work can usually be done without relocation of tenants or furnishings.

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Since this system is considered a shallow foundation, it is subject to the effects of soil movement. As soil shifts, the structure becomes unlevel and distorted. This movement can occur over long periods of time, or sometimes very quickly.

Soil Movement

Here is what we do:

  • Work to control the soil’s moisture content. It starts with drainage corrections — no water should be allowed to enter the crawl space or stand/accumulate around the exterior of the crawl space. It is imperative that the crawl space remains dry.

  • Moisture Barrier in the crawl space. This is done by placing a heavy plastic vapor barrier over the ground under the structure and extending it up along the perimeter walls.

  • During periods of prolonged drought, add moisture to the soil. This can be done by utilizing “soaker” hoses periodically.

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When a crawl space/pier and beam structure experiences deterioration, it is time to replace the wooden members. Typically though, not all of the floor framing system requires replacement, but may be limited to only affected areas.

Replacement of the structural members can often be very complex, and can require temporary shoring to support the structure while damaged materials are being replaced.

Inexperienced companies often choose to add on to the deteriorating members instead of removing and replacing. This can lead to improper load distribution and support of structural members and should be avoided.


Once all deteriorated lumber has been removed and replaced — and steps have been taken to control the soil’s moisture content — the structure can be re-leveled, or “shimmed.”

Perfect results, in terms of floor flatness, are not always practical. This is because the distortion the floor framing system has experienced often has occurred over many years, and the wooden components that make up the floor system have warped and retain a “memory.”

Also, keep in mind that shallow foundation systems are designed to move. Therefore, some fluctuations should be expected. If annual shifts are not acceptable or become excessive, the only solution is to re-support the structure on deep piles.

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