Repairing & Straightening Tilting Walls in Ontario

At Clarke Basement Systems, we are here to help you repair any tilting or bowing foundation walls. Our in-house, certified foundation experts have warrantied solutions for making all kinds of foundation repairs, including straightening foundation walls.

We provide free, no-obligation foundation wall straightening quotes throughout our Ontario service area, including Mississauga, Toronto, Markham, the surrounding areas of Brampton, Vaughan, Barrie, Peterborough, Richmond Hill, Oshawa, and nearby. Call or e-mail us today to schedule your appointment!

What Causes Tilting Basement Or Foundation Walls?

A failing foundation wall and i-beam support in a Toronto home

Basement walls that are showing signs of bowing, buckling and tilting can only get worse over time. Any foundation walls that are showing these signs should be addressed before finishing the basement.

Many homeowners will make the mistake of wanting to enjoy the space immediately and remodel their basement without tackling the foundation issue.

Your foundation repair expert can talk with you about options to quickly and effectively restore your foundation wall to its original, straight alignment.

The soil around your foundation house can place a great deal of pressure on your basement walls, causing them to crack, tilt, bow, and buckle.

This pressure varies based on the types of soil that are present, how much moisture is in the soil, and how far underground your foundation extends.

Other factors, such as hydrostatic pressure, expansive clay soils, frost, improper gutter systems, and poorly graded soils can also contribute to foundation issues.

Cracks in the masonry are usually the first sign of wall failure. Next, sections of the wall can start to buckle, bow, and tilt inwards. If left unchecked, this damage will worsen and can even result in walls that totally collapse.

While there's constant pressure pushing in on the foundation, there's no equalizing pressure pushing out! If the outside pressure is greater than the strength of your walls, they will begin to fail.

The good news is that the foundation damage mentioned above can be repaired using proven, long-lasting techniques that are much more affordable than the total foundation replacement.

At Clarke Basement Systems, we often use a wall anchor system to stabilize bowing buckling walls. Once a series of these wall anchors has been installed, the system can be gradually tightened to return damaged walls to their original straight position.

In some cases, homeowners may want bowing and/or tilting walls to be straightened right away as opposed to gradually, so that all or part of the basement can be finished -- or perhaps they may want to completely correct foundation wall problems so that the house can be put on the market.

Regardless of the reason, basement walls can be excavated and straightened immediately rather than waiting to tighten the walls periodically.

Repairing & Straightening Tilting Foundation Walls

Tilting foundation wall repair logo for GeoLock®

At Clarke Basement Systems, we recommend correcting damage done to failing foundation walls with the GeoLock® Wall Anchor System.

Designed by Supportworks, Inc., this foundation wall system is currently being used by foundation contractors throughout the United States and Canada as a warrantied solution that permanently repairs failing foundation walls.

A foundation wall showing severe damage from bowing and buckling in Whitby

Excavating the Foundation Perimeter

On the right is an example of a foundation with a severe soil issue along the foundation wall. Notice the severe inward bowing of the wall due to soil pressures.

Exterior excavation is only necessary when the foundation walls need to be straightened right away, such as when the walls are dangerously damaged, or you have scheduled the basement to be finished. When this is the case, we aim to relieve pressure placed on your foundation walls from outside moisture and soils. We begin the wall straightening process by excavating the soils out from around the foundation.

In normal scenarios, this step is not a necessary part of all Geo-Lock™ Wall Anchor System installations.



Position The Earth Anchor

Positioning an earth anchor for the steel shaft installation in Aurora.

When installing the Geo-Lock™ Wall Anchor System a section of the sod is carefully and temporarily removed at each earth anchor location.

This earth anchor is made with high-quality galvanized steel to resist corrosion and includes a 25-year warranty against manufacturing defects, as well as our own in-house quality and performance warranty.

Each earth anchor has a center hole for attaching the anchor rod that will be installed in the next step.


Coring a hole in a block wall foundation for an earth anchor installation

Prepare The Foundation Wall

Next, we drill a small hole in your foundation wall for the steel anchor rod. This anchor rod will extend from the wall to the earth anchor.

One way our wall anchor system is superior to other methods is that the hole created in the foundation wall is very small - just 1" in diameter. Other methods may require a large hole or section of concrete block to be removed during installation.


Mounting the steel wall plate for foundation wall repair and straightening in Orillia.

Mounting Wall Plates

Once the earth anchor has been attached to the anchor rod, a steel wall plate will be mounted to the anchor rod on the inside of the foundation.

Once this step of the installation has been completed for each earth anchor, the inward movement of your foundation walls will be permanently halted.


Drilling the hole in the foundation wall for street creep repairs in Georgina

Straightening Basement Walls

At this point, your foundation repair experts will attempt to straighten the foundation walls back to their original position. Wall anchors will be tightened and adjusted accordingly and will provide long-term support for the walls.

If there was extensive foundation damage, as seen in Step 1, the excavation will be filled using the soil removed.

However, to avoid excessive soil pressure in the future, gravel and drainage tile may be installed to help avoid soil pressure due to excessive moisture. After backfilling, landscape details will be carefully restored.


Wall anchor covers installed along a foundation wall that has been straightened in Alliston.

Cleaning Up & Preparing For Basement Finishing

All holes created for the soil anchor installation will be carefully filled in with excavated soil and mechanically compressed. Your sod will carefully be replaced and raked for a seamless blend with surrounding landscaping.

Inside your home, all wall plates can be covered with our attractive Hide-A-Way® Wall Anchor Covers to help them blend in with your basement finishing installation.

Contact Us For Foundation Wall Repair In Ontario!

At Clarke Basement Systems, we take pride in providing a clean, warrantied solution for homeowners in need of foundation wall repair. To help you decide if we're the contractors for you, we offer free written basement wall repair quotes for property owners throughout our ON service area.

We serve the Toronto, Markham, Mississauga, area, as well as Vaughan, Brampton, Barrie, Oshawa, Richmond Hill, Peterborough, and many outlying areas. To schedule an appointment, call or e-mail us today!

Looking for a price? Get a no cost, no obligation free estimate.

our service area

We serve Ashburn and the nearby area