Basements are generally used for storage and recreational purposes. Structurally, they constitute the foundation of a building. Have you discovered cracks in your basement wall or floor? This can compromise the strength and stability of your entire house. Fine cracks are not a major problem, but if they are wider than one-eighth of an inch, you have to seal them immediately to avoid further issues. If you are seeking basement crack repair services, K Kuypers Construction is your one-stop shop. We have been serving our clients in Edmonton and the surrounding areas since 1954.

Different Types of Basement Cracks

Concrete shrinks during the curing process, leading to the formation of cracks. These usually cause water seepage and other structural damages to your house. The common types of cracks you may notice in your building are:

Horizontal cracks: They are usually located at the center or near the top of the wall and are very structurally hazardous. They are usually caused by lateral pressure from the surrounding water-saturated soil. Landslides and lack of foundation anchors are some of the other causes. Immediate repair is crucial to prevent the basement wall from bowing out or possibly caving in.

Vertical Cracks: These are usually caused by shrinkage of materials, tipping walls or settling soil, creating additional pressure on the foundation wall. They often lead to the seepage of a lot of water into the basement.

Stair Step Cracks: These are usually associated with foundation issues and are caused by excess moisture or extreme pressure on one part of the wall. Commonly found in houses made up of bricks or located on hillsides, they result in wilting walls, sloping floors and misaligned windows.

Diagonal cracks: These usually occur due to the instability of wall supports, foundation settlement, and soil movement. They are common in houses which are made up of shrinkable clay soil or have fast-growing trees in the vicinity.

Basement waterproofing is essential to prevent property damage caused by these cracks. If you are looking for basement crack repair services, K Kuypers Construction can help. We provide long-lasting and high-quality foundation craftsmanship to our clients.

Different Methods Used to Repair Basement Cracks

Suitable repair solutions for basement cracks can be established after determining its cause and evaluating the structure thoroughly. Choosing the right method will help you save a lot of time and money and provide long-lasting results. 

Epoxy Injection Method

It is usually used to fix cracks on exposed surfaces and of around 0.002-inch width. This method is employed to repair buildings, bridges and other concrete structures. However, it cannot be used in places which leak continuously and cannot be dried out. If the cause of the cracks is not corrected before carrying out any restoration work, it may recur. In such cases, you can either rout and seal it or establish a joint before injecting the epoxy. 

Routing and Sealing Method

This is a very common and simple method, usually used only in cases where remedial crack repairing is required. In this method, the cracks on the surface are enlarged and then filled and sealed using a sealant. It is usually used to fix flat horizontal areas, but can also be used for vertical and cracked surfaces. Widely used for waterproofing areas with high hydrostatic pressure, it prevents moisture from reaching reinforcing steel.

Sealants are made up of different materials like urethanes, silicones or polymer mortars. Those used for basement floors should be sufficiently rigid to withstand cyclic deformations.

Stitching the Cracks

This is a very long lasting method of repairing cracked buildings. There are three different types, which are:

Cross-stitching: Holes are drilled at an angle so they intersect the longitudinal cracks or joints at mid-depth of the slab. The drilling dust is removed using compressed air and epoxy is injected into the holes. 

In slot-stitching: Slots of around 25 inches long are cut perpendicular to the longitudinal joints or cracks. Deformed bars are then placed and the backfill material is applied, which holds the concrete slabs together.

U-bar stitching: The slots are cut using a slot cutting machine and concrete removed using a pneumatic hammer. The anchoring action provided by the U-bars offers most of the restraining force. Ensure the back ends of the U-bars are properly filled.

Drilling and Plugging Method

This is a cost-effective and less time consuming method to repair vertical cracks. A hole is drilled near the crack and it is filled with grout, which prevents leakages and loss of soil. The drilled hole can also be filled with epoxy mortar or other such reinforcements.

There are other methods such as gravity filling, dry packing and surface treatments you can choose from to fix your cracking issue. Get in touch with K Kuypers Construction for your basement crack repair needs. For a free estimate, contact us today!