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Choosing the Right Solution for Foundation Wall Cracks: Crack Injection vs. FlexiSpan®

Choosing the Right Solution for Foundation Wall Cracks: Crack Injection vs. FlexiSpan® - Image 1

Water leaking through foundation wall cracks is a common issue for homeowners, especially in regions with high groundwater levels or frequent rainfall. Left untreated, these leaks can lead to mold growth, structural damage, and ruined belongings. At Erickson Foundation Solutions, we understand the importance of choosing the right repair method to ensure long-term protection and peace of mind.

We typically offer two proven solutions: standard crack injection and the FlexiSpan® wall crack repair system. Here’s how to determine which option is best for your home.


Understanding the Problem: Why Cracks Leak

Foundation wall cracks often form due to settling, hydrostatic pressure, or shrinkage in poured concrete. These cracks can become pathways for water intrusion, especially during heavy rains or snowmelt. The severity of the leak and the condition of the crack help determine the most effective repair method.


Option 1: Standard Crack Injection

Crack injection involves filling the crack with a specialized polyurethane or epoxy material that expands to seal the gap. This method is ideal for:

  • Hairline to moderate cracks
  • Cracks that are not actively shifting
  • Situations where minimal water intrusion is present

Benefits:

  • Quick and cost-effective
  • Creates a watertight seal
  • Minimal disruption to the basement space

Limitations:

  • May not accommodate future movement in the foundation wall
  • Less effective for cracks with ongoing water pressure or structural instability

Option 2: FlexiSpan® Wall Crack Repair System

FlexiSpan® is a more advanced solution designed to provide long-term flexibility and drainage. It consists of a flexible polyurethane sealant, a drainage channel, and a foam layer that directs any water behind the crack into the perimeter drainage system (such as WaterGuard®).

Ideal for:

  • Cracks with recurring water intrusion
  • Walls that may experience minor movement over time
  • Homes with existing interior drainage systems

Benefits:

  • Flexible seal accommodates wall movement
  • Redirects water into the drainage system
  • Provides a permanent, maintenance-free solution

Limitations:

  • Slightly more involved installation process
  • Best paired with a sump pump and drainage system

Which Is Right for You?

The choice between crack injection and FlexiSpan® depends on several factors:

  • Severity and activity of the crack
  • Presence of water pressure
  • Existing waterproofing systems
  • Long-term goals for the basement space

At Erickson Foundation Solutions, our experts assess each situation individually to recommend the most effective and lasting solution. Whether you're dealing with a minor leak or a persistent water issue, we’re here to help protect your home from moisture damage.


Ready to Fix That Leak?

If you’ve noticed water coming through a foundation wall crack, don’t wait for the problem to worsen. Contact Erickson Foundation Solutions today for a free inspection and personalized recommendation. We’ll help you choose the right solution to keep your basement dry and your foundation strong.

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We serve the following areas

MassachusettsNew Hampshire Our Locations:

Erickson Foundation Solutions
14 Clement Rd
Hudson, NH 03051
1-603-263-4404
Erickson Foundation Solutions Service Area