Foundation crack injection is a non-invasive basement waterproofing method used to seal concrete cracks in foundation walls from the inside. By either epoxy injection (for structural reinforcement) or hydrophobic polyurethane injection (for flexible leak stopping) to seal foundation cracks without the need for exterior waterproofing.
- Professional and trained technicians
- Metal ports NOT plastic for adequate injection pressure
- Hygro-phobic polyurethane injection that expands 30 times its volume to stop seepage.
- Epoxy crack injections for structural purposes
- Lifetime transferable warranty
Call Us now to book a free appointment 1.800.277.5411
The Injection Process:
- Protect the work area
We set up protective measures so the repair is clean and controlled. - Prepare the crack and install injection ports
We prepare the crack line and install injection ports at consistent intervals so the repair can be completed properly. - Crack injection from bottom to top
We inject the crack in stages from bottom to top to ensure the full depth of the crack is sealed. - Finish and clean-up
We finish the repair area neatly and leave the workspace clean. - Warranty support
Our crack injections are backed by a lifetime transferable warranty for long-term peace of mind.
Types of Cracks:
Vertical cracks
Vertical foundation wall cracks are common and may leak when water pressure increases outside the foundation. These cracks are often repaired with crack injection after an inspection confirms the leak path and crack conditions.
Horizontal cracks
Horizontal cracks may indicate higher pressure or movement in the foundation wall. These cracks require inspection to confirm whether standard crack injection is appropriate or whether epoxy crack injection is required for structural repair.
Crack Injection Cost
Crack injection cost depends on the crack length, crack location, crack direction (vertical or horizontal), wall access, and whether epoxy crack injection is required. Most residential crack injection projects are priced per crack based on standard wall conditions. For an accurate price, request a free inspection and written estimate.
Foundation Cracks typically cost between $650 – $1,500 per crack depending on many factors
Crack injection is the service Dryshield uses to permanently seal leaking foundation wall cracks from inside the basement. A properly completed crack injection stops water entry through the crack and helps prevent the same crack from leaking again.
Dryshield provides crack injection in Toronto and across the GTA for homeowners and businesses. Every job starts with an inspection to confirm the crack type and recommend the correct repair approach, including epoxy crack injection when a structural repair is required.
At a glance
• Service: crack injection / basement crack injection
• Best for: leaking foundation wall cracks
• Typical time: usually a few hours per crack
• Warranty: lifetime transferable warranty
• Next step: book a free inspection and written estimate
Concrete Crack Injections: The best way to repair concrete cracks
Foundation wall cracks can leak during heavy rain and spring melt when outside water pressure increases around the home. Dryshield crack injection seals the full depth of the crack so water can’t travel through the wall and into the basement.
If you’re unsure whether your issue is best classified as concrete crack repair, basement crack repair, or foundation crack repair, our technician will confirm this during the inspection and recommend the correct Dryshield service.
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Related Dryshield services
• Foundation crack repair
• Concrete crack repair
• Basement crack repair
• Epoxy crack injection
• Basement Waterproofing
Crack Injection FAQs
What is basement crack injection?
Basement crack injection is a foundation crack repair method completed from inside the basement. Injection ports are placed along the crack and the crack is sealed through the full depth of the wall to stop water entry.
When should epoxy crack injection be used?
Epoxy crack injection are used when attempting to seal a structural crack not for water seepage. An inspection, determining if there is water seepage can confirm whether an epoxy crack injection is most suitable.
How long does crack injection last?
A Professional crack injection properly completed is designed to be a permanent solution for the lifetime of the foundation. Dryshield Basement waterproofing offers full lifetime transferable warranties on all their crack injections.
Can crack injections be done from inside the basement only?
No. Although most concrete crack injections are completed from inside the basement, they can also be injected from the outside as well. In some circumstances such as commercial cracks where the walls can only be accessed from the outside, exterior crack injections may be required.
Want the full waterproofing guide?
To learn more about our full range of waterproofing services, visit our main Basement Waterproofing Toronto page.
Reviewed by: Jason Cirillo Senior Waterproofing Technician, Dryshield
Experience: 22+ years crack injection and foundation crack repair in Toronto & the GTA
Last updated: December 2025
