Overview

This Bettendorf, Iowa foundation repair project is one of the most significant examples we have encountered of a failed wall anchor installation.

The home was approximately 80 years old and built on an 8-foot-tall concrete block foundation. Years before contacting Behncke Construction, the homeowner hired another foundation repair company to address bowing basement walls. Their solution was to install eight wall anchors in an attempt to stabilize the foundation.

Unfortunately, the wall anchors did not stop the movement.

Over the following years, the foundation walls continued to move inward. By the time the homeowner contacted us, portions of the foundation had bowed nearly four inches and blocks had become severely displaced. Three of the four foundation walls were approaching structural failure.

What began as a wall stabilization project eventually became a major foundation reconstruction project costing more than $30,000.

The Original Problem

The homeowner initially noticed signs that are common with many failing block foundations:

• Bowing basement walls
• Horizontal cracking
• Inward wall movement
• Visible displacement of masonry blocks
• Concerns about long-term structural stability

Like many homeowners, they wanted to stop the movement before the problem became worse.

The original contractor recommended wall anchors and installed eight anchors throughout the foundation.

At the time, the homeowner believed the problem had been solved.

Why the Wall Anchors Failed

Wall anchors can be an effective repair in certain situations. However, they are not the correct solution for every bowing foundation wall.

In this case, the foundation continued to move after the anchors were installed.

Over time, the wall movement increased until portions of the foundation had displaced approximately four inches inward. The block walls were no longer simply bowed. They were approaching structural failure.

One of the concerns we have observed over the years is that wall anchors often rely heavily on the surrounding soil for resistance. In some situations, the anchors and surrounding soil can move together rather than providing the level of reinforcement necessary to permanently stabilize the structure.

While every project is different, we have found failed wall anchor installations to be one of the most common failed foundation repair methods we encounter.

Many of the failed foundation repairs we are asked to evaluate involve wall anchor systems that did not stop the movement as intended.

Our Evaluation

When Behncke Construction inspected the property, it was clear that additional wall anchors would not solve the problem.

The foundation walls had already experienced significant movement and block displacement. The damage had progressed beyond what we considered a practical stabilization project.

The homeowner no longer needed a different anchoring system.

The homeowner needed a permanent structural repair.

After evaluating the condition of the foundation, we recommended rebuilding three of the four foundation walls.

The Repair Process

The existing failed walls were removed and reconstructed.

The new foundation walls were reinforced with rebar and grout to provide significantly greater structural integrity than the original construction.

Because foundation movement is often related to water management issues, we also addressed drainage concerns around the property.

The repair included:

• Reconstruction of three foundation walls
• Reinforced masonry construction
• Rebar reinforcement
• Grouted block construction
• Grading corrections
• Downspout improvements
• Drainage corrections to reduce future pressure against the foundation

Rather than simply addressing the symptom, the repair addressed both the failed structure and the conditions that contributed to the problem.

The Result

The completed repair restored the structural integrity of the home.

The homeowner no longer had to worry about continued wall movement, additional displacement, or the possibility of foundation wall failure.

While the project was substantially more expensive than the original wall anchor installation, it provided a permanent solution to a problem that had continued to worsen for years.

What Homeowners Can Learn From This Project

One of the biggest mistakes we see in the foundation repair industry is selecting a repair system before fully understanding the cause and severity of the problem.

Many companies specialize in a particular product. Some companies primarily sell wall anchors. Others primarily sell carbon fiber systems, helical piers, or waterproofing systems.

The problem is that homes do not always fit neatly into a particular product category.

Every foundation is different.

Every repair should begin with an understanding of why the movement occurred, how much movement has occurred, whether the movement is ongoing, and what conditions are contributing to the problem.

In our experience, failed wall anchor installations are among the most common failed foundation repairs we encounter. That does not mean wall anchors never work. It means that wall anchors are sometimes installed in situations where a different repair method would have been more appropriate.

At Behncke Construction, our goal is not to sell a particular system.

Our goal is to identify the problem and recommend the repair that gives the homeowner the best long-term outcome.

Sometimes that means steel I-beam bracing.

Sometimes that means drainage corrections.

Sometimes that means foundation reconstruction.

The right repair depends on the structure, not on the product being sold.

Foundation Repair in Bettendorf and the Quad Cities

Since 1948, Behncke Construction has provided foundation repair, basement waterproofing, structural masonry repair, and foundation reconstruction services throughout Bettendorf, Davenport, Muscatine, Rock Island, Moline, and the surrounding Quad Cities area.

If you have a bowing basement wall, foundation crack, settling foundation, or have been told you need wall anchors, we encourage you to obtain a thorough evaluation before making a final decision.

The right diagnosis can save homeowners thousands of dollars and help avoid costly repairs in the future.