Is there a foundation crack that is leaking water into your basement, or a crack that you are concerned about?
AquaGuard Injection & Waterproofing® is an established and licenced waterproofing contractor, servicing the Greater Toronto Area (GTA) since 2002, that offers the full range of basement waterproofing and foundation crack repair services. When you call us to repair the crack in your basement, the repair is permanent and is guaranteed for 25 years – in writing.
Foundation crack leaking near the floor
Most cracks leak at the lowest part of the wall
The 3 foundation crack repair and sealing methods
Not all concrete crack repair methods in the marketplace are recommended by industry professionals. Below we briefly describe the basement crack repair and sealing processes that are time proven and recognized within the basement waterproofing industry.
There are 3 industry standard methods used to repair foundation cracks:
- Epoxy crack injection;
- Polyurethane crack injection; and
- Exterior crack repair.
Note: There is one more proprietary crack repair method that is available for solving a leaking foundation crack, involving covering the crack with a barrier and allowing water to be channeled beneath the basement floor. We would never recommend doing this in light of the problems homeowners are having with high water tables as well as the fact that concrete saturation and deterioration occurs.
Foundation Crack Repair and Sealing Methods Quick Reference
Epoxy Crack Injection
Low pressure epoxy injection
Concept: The injection of epoxy (glue) under low pressure to fill the crack through the thickness of the foundation wall
Repair Location: Inside
Most Significant Attribute: Structural crack repair
How It Works: The crack is filled with epoxy which then hardens, eliminates the crack completely and binds the 2 sides of the wall together
Average Job Time: 2 hours for the repair of 1 crack
Typical Repair Cost: $450 + HST
Our Warranty: 25 years – written and transferable
Polyurethane Crack Injection
Expanding polyurethane fills all voids
Concept: The injection of polyurethane resin under either high or low pressure to fill the crack through the thickness of the foundation wall
Repair Location: Inside
Most Significant Attribute: Repairs actively leaking cracks
How It Works: Crack is filled with polyurethane which cures, remains flexible, and eliminates the crack entirely
Average Job Time: 2 hours to repair 1 foundation crack
Typical Repair Cost: $450 + HST
Our Warranty: 25 years – written and transferable
Exterior Crack Repair
Foundation walls are cleaned before coatings are applied
Concept: The application of a barrier such as foundation coating or BlueSkin® over the crack to prevent the entry of water
Repair Location: Outside
Most Significant Attribute: Seals the crack by preventing water from entering the basement but does not repair the crack. This method of foundation crack repair requires several weeks of lead time to locate underground utilities
How It Works: A patch (typically a rubber membrane) is placed over the crack to prevent water from flowing through
Average Job Time: 1 day to excavate and waterproof the crack
Typical Repair Cost: $1600 – $2000 + HST
Our Warranty: 25 years – written and transferable
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Do-it-yourself repairs
What’s the best way to fix the crack in a foundation?
Obviously there are a number of options available to you to fix a crack in your foundation; at the end of the day the decision is yours. We suggest you ask us for our recommendation, as we do these repairs all day long, every day of the week. To be sure the recommendation is unbiased, ask for the technical reason for the recommendation.
As far as we’re concerned a homeowner should feel assured knowing that the crack repair is being done using an industry standard method, that they are paying a competitive price and that the person(s) doing the repair are competent and committed to doing a good job.
Is the crack in the foundation wide?
Sometimes foundation cracks require structural repair or stabilization, in this case, the crack repair goes beyond waterproofing. Check our this link for information on stabilizing structural cracks.