Bowing Foundation Wall Repair Toronto, GTA & South Ontario

Bowing Foundation Wall Repair Services

We offer bowing wall repair services designed to repair bowed foundation walls, and exterior and interior walls made of bricks, blocks, and concrete. This and other wall damage repair services are available in Toronto, GTA, and South Ontario.

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What is a Bowing Foundation Wall?

A bowing foundation refers to a situation where the walls of a building's foundation start to curve or bulge inward or outward, instead of remaining straight and sturdy. This can create visible distortions or unevenness in the foundation walls. Bowing foundations are a sign of serious structural issues and can lead to further damage if left untreated.

The bowing of a foundation wall is usually caused by the excess pressure exerted on the walls, causing them to move and deform. This pressure can be a result of various factors, such as hydrostatic pressure from moisture in the soil, poor construction techniques, expansive soils, or the presence of tree roots.

Bowing foundations are a serious concern as they can weaken the structural stability of the building. They can also lead to cracks in the walls, windows and doors becoming misaligned, and other signs of foundation damage. It is important to address and repair a bowing foundation as soon as possible to prevent further deterioration and potential safety hazards.

Why Foundation Walls Bow?

What Causes Foundation Wall to Bow?

There are several factors that can cause a foundation wall to bow. Some of the common causes include:

Hydrostatic pressure - this is the most common cause of foundation wall bowing. Hydrostatic pressure occurs when water exerts pressure against the foundation wall, causing it to bow inward. This pressure can be caused by heavy rainfall, poor drainage, or a high water table.
Poor construction - if the foundation wall is not built properly, it may not be able to withstand the weight and pressure of the surrounding soil, leading to bowing. This can happen if the wall is not reinforced properly or if the concrete used is of poor quality.
Expansive soils - some types of soil, such as clay, expand when they absorb water and shrink when they dry out. This constant expansion and contraction can exert pressure on the foundation wall, causing it to bow.
Frost heave - in colder climates, frost heave can cause foundation walls to bow. When water in the soil freezes, it expands and can lift the foundation wall, leading to bowing.
Tree roots - the roots of large trees planted near the foundation can also cause bowing. As the roots grow, they can exert pressure on the foundation wall, causing it to bow inward.

It is important to address foundation wall bowing as soon as it is noticed, as it can lead to further structural damage if left untreated. Consulting with a professional foundation repair contractor is recommended to determine the cause and appropriate repair solution.

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How Much Does it Cost to Repair Bowing Foundation Walls?

Cost of Bowing Foundation Repair Toronto

The cost of bowing foundation wall repair in Toronto ranges from $3,000-$25,000+. The specific cost of sinking, settling or bowing foundation wall repair will depend on the extent of the damage, the number and size of the walls, ease of access to the wall inside and outside, as well as the specific wall repair that is needed. Book a FREE estimate today!

How to Repair Bowing Wall in Toronto?

Methods Used in Bowing Foundation Wall Repair

There are several methods used in bowed wall repair. The appropriate method depends on the severity of the bowing, the type of foundation, and other factors. Here are some commonly used methods:

Carbon fiber reinforcement - carbon fiber straps or strips are installed vertically or horizontally across the bowed wall. These straps are bonded to the wall with an epoxy adhesive, providing added strength and stability to prevent further bowing.
Steel reinforcement - steel beams or plates can be installed against the bowed wall to provide reinforcement and counteract the inward pressure. These steel reinforcements are anchored to the foundation footing and the floor joists above.
Wall anchors or helical tiebacks - these methods involve installing helical anchors or wall anchors into the soil outside the foundation wall. These anchors are connected to the interior wall using a steel rod and plate, applying outward pressure to counteract the inward bowing.
Wall bracing or stabilization - this method involves installing vertical or diagonal steel beams against the bowed wall. These beams are anchored to the floor joists and the foundation footing to provide additional support and resist the bowing forces.
Shotcrete or gunite - in severe cases, a thick layer of shotcrete or gunite can be applied to the bowed wall. The shotcrete or gunite acts as a new, reinforced layer that provides additional strength and stability to the wall.

It's important to note that the choice of method should be made by a professional foundation repair contractor or structural engineer based on a thorough assessment of the specific situation. Factors such as the severity of bowing, soil conditions, and the structural integrity of the foundation will determine the most appropriate repair method.

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Signs that You Have Bowing Walls

How to Identify Bowing Foundation Walls?

Identifying bowing walls are complex and MUST be handled by professionals. When analyzing the extent of the

Visual Distortions - visible signs of bowing or bulging in the foundation walls. Visual inspection may be one of the first things our contractors would do - inspecting the walls to see if they appear uneven, bowed inward or outward, or have visible cracks.
Cracks – experts will check for cracks in the foundation walls, especially vertical or diagonal cracks that are wider at the top or bottom. Bowing walls can often cause wall cracks as the pressure and movement disrupt the integrity of the structure.
Misaligned Doors & Windows - in some cases, bowing walls can cause doors and windows to become misaligned. Look for sticking doors or windows that no longer open or close properly, or that have visible gaps around the frames.
Water Damage – we also pay attention to signs of water damage such as dampness, mold, or mildew on the walls, especially in the basement or crawl space areas. Bowing walls can result from hydrostatic pressure caused by water pooling around the foundation.
Uneven or Sloping Floors - may be a sign of a bowing foundation. This can occur when the walls shift and cause the floor to become uneven.

It's important to note that these signs can sometimes be indicative of other foundation issues as well. If you suspect a bowing foundation, it is recommended to consult with a professional foundation contractor or structural engineer who can assess the situation and provide an accurate diagnosis.

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