Foundation Crack Repair

We will effectively seal your foundation cracks and can add a high-performance waterproofing membrane.

For foundation crack repair in Saint-Jean-sur-Richelieu, by a company also serving Chambly, La Prairie, and surrounding cities, contact experienced experts. CONSTRUCTION APC, a company founded in 2018, holds a general contractor's license from the Régie du bâtiment (general contractor's license) and is a member of the APCHQ.

Our foundation crack repair specialists have 12 years of experience in the field and can also apply two types of waterproofing membranes over the entire surface of your foundation walls. Our crack repair services are offered in residential, commercial, institutional, and industrial settings.

Passive foundation cracks, which do not enlarge after a year or two, are usually small. Active cracks, which grow year after year, weaken and undermine the foundation concrete.

Polyurethane and epoxy are two types of products used to seal foundation cracks. Epoxy is also an adhesive that fills and "welds" the crack to the foundation concrete, restoring its structural integrity. Epoxy is generally used on large buildings with solid foundations that do not move during thawing. Since epoxy is not an extendable product, it is not recommended for house foundations, which move during thawing.

Polyurethane is a foam that expands after being injected into foundation cracks. The product adheres to the concrete and acts in depth, while being flexible (even when dry) and capable of withstanding ground movements. It is the most commonly used product for sealing cracks in residential foundation concrete, even if the inside of the cracks is damp. The product can be used both indoors and outdoors.